DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Mercurial (409f3966645a)

VCS Links

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700
/*
 * blapi.h - public prototypes for the freebl library
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef _BLAPI_H_
#define _BLAPI_H_

#include "blapit.h"
#include "hasht.h"
#include "alghmac.h"

SEC_BEGIN_PROTOS

/*
** RSA encryption/decryption. When encrypting/decrypting the output
** buffer must be at least the size of the public key modulus.
*/

extern SECStatus BL_Init(void);

/*
** Generate and return a new RSA public and private key.
**  Both keys are encoded in a single RSAPrivateKey structure.
**  "cx" is the random number generator context
**  "keySizeInBits" is the size of the key to be generated, in bits.
**     512, 1024, etc.
**  "publicExponent" when not NULL is a pointer to some data that
**     represents the public exponent to use. The data is a byte
**     encoded integer, in "big endian" order.
*/
extern RSAPrivateKey *RSA_NewKey(int keySizeInBits,
                                 SECItem *publicExponent);

/*
** Perform a raw public-key operation
**  Length of input and output buffers are equal to key's modulus len.
*/
extern SECStatus RSA_PublicKeyOp(RSAPublicKey *key,
                                 unsigned char *output,
                                 const unsigned char *input);

/*
** Perform a raw private-key operation
**  Length of input and output buffers are equal to key's modulus len.
*/
extern SECStatus RSA_PrivateKeyOp(RSAPrivateKey *key,
                                  unsigned char *output,
                                  const unsigned char *input);

/*
** Perform a raw private-key operation, and check the parameters used in
** the operation for validity by performing a test operation first.
**  Length of input and output buffers are equal to key's modulus len.
*/
extern SECStatus RSA_PrivateKeyOpDoubleChecked(RSAPrivateKey *key,
                                               unsigned char *output,
                                               const unsigned char *input);

/*
** Perform a check of private key parameters for consistency.
*/
extern SECStatus RSA_PrivateKeyCheck(const RSAPrivateKey *key);

/*
** Given only minimal private key parameters, fill in the rest of the
** parameters.
**
**
** All the entries, including those supplied by the caller, will be
** overwritten with data alocated out of the arena.
**
** If no arena is supplied, one will be created.
**
** The following fields must be supplied in order for this function
** to succeed:
**   one of either publicExponent or privateExponent
**   two more of the following 5 parameters (not counting the above).
**      modulus (n)
**      prime1  (p)
**      prime2  (q)
**      publicExponent (e)
**      privateExponent (d)
**
** NOTE: if only the publicExponent, privateExponent, and one prime is given,
** then there may be more than one RSA key that matches that combination. If
** we find 2 possible valid keys that meet this criteria, we return an error.
** If we return the wrong key, and the original modulus is compared to the
** new modulus, both can be factored by calculateing gcd(n_old,n_new) to get
** the common prime.
**
** NOTE: in some cases the publicExponent must be less than 2^23 for this
** function to work correctly. (The case where we have only one of: modulus
** prime1 and prime2).
**
** All parameters will be replaced in the key structure with new parameters
** allocated out of the arena. There is no attempt to free the old structures.
** prime1 will always be greater than prime2 (even if the caller supplies the
** smaller prime as prime1 or the larger prime as prime2). The parameters are
** not overwritten on failure.
**
** While the remaining Chinese remainder theorem parameters (dp,dp, and qinv)
** can also be used in reconstructing the private key, they are currently
** ignored in this implementation.
*/
extern SECStatus RSA_PopulatePrivateKey(RSAPrivateKey *key);

/********************************************************************
** RSA algorithm
*/

/********************************************************************
** Raw signing/encryption/decryption operations.
**
** No padding or formatting will be applied.
** inputLen MUST be equivalent to the modulus size (in bytes).
*/
extern SECStatus
RSA_SignRaw(RSAPrivateKey *key,
            unsigned char *output,
            unsigned int *outputLen,
            unsigned int maxOutputLen,
            const unsigned char *input,
            unsigned int inputLen);

extern SECStatus
RSA_CheckSignRaw(RSAPublicKey *key,
                 const unsigned char *sig,
                 unsigned int sigLen,
                 const unsigned char *hash,
                 unsigned int hashLen);

extern SECStatus
RSA_CheckSignRecoverRaw(RSAPublicKey *key,
                        unsigned char *data,
                        unsigned int *dataLen,
                        unsigned int maxDataLen,
                        const unsigned char *sig,
                        unsigned int sigLen);

extern SECStatus
RSA_EncryptRaw(RSAPublicKey *key,
               unsigned char *output,
               unsigned int *outputLen,
               unsigned int maxOutputLen,
               const unsigned char *input,
               unsigned int inputLen);

extern SECStatus
RSA_DecryptRaw(RSAPrivateKey *key,
               unsigned char *output,
               unsigned int *outputLen,
               unsigned int maxOutputLen,
               const unsigned char *input,
               unsigned int inputLen);

/********************************************************************
** RSAES-OAEP encryption/decryption, as defined in RFC 3447, Section 7.1.
**
** Note: Only MGF1 is supported as the mask generation function. It will be
** used with maskHashAlg as the inner hash function.
**
** Unless performing Known Answer Tests, "seed" should be NULL, indicating that
** freebl should generate a random value. Otherwise, it should be an octet
** string of seedLen bytes, which should be the same size as the output of
** hashAlg.
*/
extern SECStatus
RSA_EncryptOAEP(RSAPublicKey *key,
                HASH_HashType hashAlg,
                HASH_HashType maskHashAlg,
                const unsigned char *label,
                unsigned int labelLen,
                const unsigned char *seed,
                unsigned int seedLen,
                unsigned char *output,
                unsigned int *outputLen,
                unsigned int maxOutputLen,
                const unsigned char *input,
                unsigned int inputLen);

extern SECStatus
RSA_DecryptOAEP(RSAPrivateKey *key,
                HASH_HashType hashAlg,
                HASH_HashType maskHashAlg,
                const unsigned char *label,
                unsigned int labelLen,
                unsigned char *output,
                unsigned int *outputLen,
                unsigned int maxOutputLen,
                const unsigned char *input,
                unsigned int inputLen);

/********************************************************************
** RSAES-PKCS1-v1_5 encryption/decryption, as defined in RFC 3447, Section 7.2.
*/
extern SECStatus
RSA_EncryptBlock(RSAPublicKey *key,
                 unsigned char *output,
                 unsigned int *outputLen,
                 unsigned int maxOutputLen,
                 const unsigned char *input,
                 unsigned int inputLen);

extern SECStatus
RSA_DecryptBlock(RSAPrivateKey *key,
                 unsigned char *output,
                 unsigned int *outputLen,
                 unsigned int maxOutputLen,
                 const unsigned char *input,
                 unsigned int inputLen);

/********************************************************************
** RSASSA-PSS signing/verifying, as defined in RFC 3447, Section 8.1.
**
** Note: Only MGF1 is supported as the mask generation function. It will be
** used with maskHashAlg as the inner hash function.
**
** Unless performing Known Answer Tests, "salt" should be NULL, indicating that
** freebl should generate a random value.
*/
extern SECStatus
RSA_SignPSS(RSAPrivateKey *key,
            HASH_HashType hashAlg,
            HASH_HashType maskHashAlg,
            const unsigned char *salt,
            unsigned int saltLen,
            unsigned char *output,
            unsigned int *outputLen,
            unsigned int maxOutputLen,
            const unsigned char *input,
            unsigned int inputLen);

extern SECStatus
RSA_CheckSignPSS(RSAPublicKey *key,
                 HASH_HashType hashAlg,
                 HASH_HashType maskHashAlg,
                 unsigned int saltLen,
                 const unsigned char *sig,
                 unsigned int sigLen,
                 const unsigned char *hash,
                 unsigned int hashLen);

/********************************************************************
** RSASSA-PKCS1-v1_5 signing/verifying, as defined in RFC 3447, Section 8.2.
**
** These functions expect as input to be the raw value to be signed. For most
** cases using PKCS1-v1_5, this should be the value of T, the DER-encoded
** DigestInfo structure defined in Section 9.2, Step 2.
** Note: This can also be used for signatures that use PKCS1-v1_5 padding, such
** as the signatures used in SSL/TLS, which sign a raw hash.
*/
extern SECStatus
RSA_Sign(RSAPrivateKey *key,
         unsigned char *output,
         unsigned int *outputLen,
         unsigned int maxOutputLen,
         const unsigned char *data,
         unsigned int dataLen);

extern SECStatus
RSA_CheckSign(RSAPublicKey *key,
              const unsigned char *sig,
              unsigned int sigLen,
              const unsigned char *data,
              unsigned int dataLen);

extern SECStatus
RSA_CheckSignRecover(RSAPublicKey *key,
                     unsigned char *output,
                     unsigned int *outputLen,
                     unsigned int maxOutputLen,
                     const unsigned char *sig,
                     unsigned int sigLen);

/********************************************************************
** DSA signing algorithm
*/

/* Generate a new random value within the interval [2, q-1].
*/
extern SECStatus DSA_NewRandom(PLArenaPool *arena, const SECItem *q,
                               SECItem *random);

/*
** Generate and return a new DSA public and private key pair,
**  both of which are encoded into a single DSAPrivateKey struct.
**  "params" is a pointer to the PQG parameters for the domain
**  Uses a random seed.
*/
extern SECStatus DSA_NewKey(const PQGParams *params,
                            DSAPrivateKey **privKey);

/* signature is caller-supplied buffer of at least 20 bytes.
** On input,  signature->len == size of buffer to hold signature.
**            digest->len    == size of digest.
** On output, signature->len == size of signature in buffer.
** Uses a random seed.
*/
extern SECStatus DSA_SignDigest(DSAPrivateKey *key,
                                SECItem *signature,
                                const SECItem *digest);

/* signature is caller-supplied buffer of at least 20 bytes.
** On input,  signature->len == size of buffer to hold signature.
**            digest->len    == size of digest.
*/
extern SECStatus DSA_VerifyDigest(DSAPublicKey *key,
                                  const SECItem *signature,
                                  const SECItem *digest);

/* For FIPS compliance testing. Seed must be exactly 20 bytes long */
extern SECStatus DSA_NewKeyFromSeed(const PQGParams *params,
                                    const unsigned char *seed,
                                    DSAPrivateKey **privKey);

/* For FIPS compliance testing. Seed must be exactly 20 bytes. */
extern SECStatus DSA_SignDigestWithSeed(DSAPrivateKey *key,
                                        SECItem *signature,
                                        const SECItem *digest,
                                        const unsigned char *seed);

/******************************************************
** Diffie Helman key exchange algorithm
*/

/* Generates parameters for Diffie-Helman key generation.
**  primeLen is the length in bytes of prime P to be generated.
*/
extern SECStatus DH_GenParam(int primeLen, DHParams **params);

/* Generates a public and private key, both of which are encoded in a single
**  DHPrivateKey struct. Params is input, privKey are output.
**  This is Phase 1 of Diffie Hellman.
*/
extern SECStatus DH_NewKey(DHParams *params,
                           DHPrivateKey **privKey);

/*
** DH_Derive does the Diffie-Hellman phase 2 calculation, using the
** other party's publicValue, and the prime and our privateValue.
** maxOutBytes is the requested length of the generated secret in bytes.
** A zero value means produce a value of any length up to the size of
** the prime.   If successful, derivedSecret->data is set
** to the address of the newly allocated buffer containing the derived
** secret, and derivedSecret->len is the size of the secret produced.
** The size of the secret produced will depend on the value of outBytes.
** If outBytes is 0, the key length will be all the significant bytes of
** the derived secret (leading zeros are dropped). This length could be less
** than the length of the prime. If outBytes is nonzero, the length of the
** produced key will be outBytes long. If the key is truncated, the most
** significant bytes are truncated. If it is expanded, zero bytes are added
** at the beginning.
** It is the caller's responsibility to free the allocated buffer
** containing the derived secret.
*/
extern SECStatus DH_Derive(SECItem *publicValue,
                           SECItem *prime,
                           SECItem *privateValue,
                           SECItem *derivedSecret,
                           unsigned int outBytes);

/*
** KEA_CalcKey returns octet string with the private key for a dual
** Diffie-Helman  key generation as specified for government key exchange.
*/
extern SECStatus KEA_Derive(SECItem *prime,
                            SECItem *public1,
                            SECItem *public2,
                            SECItem *private1,
                            SECItem *private2,
                            SECItem *derivedSecret);

/*
 * verify that a KEA or DSA public key is a valid key for this prime and
 * subprime domain.
 */
extern PRBool KEA_Verify(SECItem *Y, SECItem *prime, SECItem *subPrime);

/****************************************
 * J-PAKE key transport
 */

/* Given gx == g^x, create a Schnorr zero-knowledge proof for the value x
 * using the specified hash algorithm and signer ID. The signature is
 * returned in the values gv and r. testRandom must be NULL for a PRNG
 * generated random committment to be used in the sigature. When testRandom
 * is non-NULL, that value must contain a value in the subgroup q; that
 * value will be used instead of a PRNG-generated committment in order to
 * facilitate known-answer tests.
 *
 * If gxIn is non-NULL then it must contain a pre-computed value of g^x that
 * will be used by the function; in this case, the gxOut parameter must be NULL.
 * If the gxIn parameter is NULL then gxOut must be non-NULL; in this case
 * gxOut will contain the value g^x on output.
 *
 * gx (if not supplied by the caller), gv, and r will be allocated in the arena.
 * The arena is *not* optional so do not pass NULL for the arena parameter.
 * The arena should be zeroed when it is freed.
 */
SECStatus
JPAKE_Sign(PLArenaPool *arena, const PQGParams *pqg, HASH_HashType hashType,
           const SECItem *signerID, const SECItem *x,
           const SECItem *testRandom, const SECItem *gxIn, SECItem *gxOut,
           SECItem *gv, SECItem *r);

/* Given gx == g^x, verify the Schnorr zero-knowledge proof (gv, r) for the
 * value x using the specified hash algorithm and signer ID.
 *
 * The arena is *not* optional so do not pass NULL for the arena parameter.
 */
SECStatus
JPAKE_Verify(PLArenaPool *arena, const PQGParams *pqg,
             HASH_HashType hashType, const SECItem *signerID,
             const SECItem *peerID, const SECItem *gx,
             const SECItem *gv, const SECItem *r);

/* Call before round 2 with x2, s, and x2s all non-NULL. This will calculate
 * base = g^(x1+x3+x4) (mod p) and x2s = x2*s (mod q). The values to send in
 * round 2 (A and the proof of knowledge of x2s) can then be calculated with
 * JPAKE_Sign using pqg->base = base and x = x2s.
 *
 * Call after round 2 with x2, s, and x2s all NULL, and passing (gx1, gx2, gx3)
 * instead of (gx1, gx3, gx4). This will calculate base = g^(x1+x2+x3). Then call
 * JPAKE_Verify with pqg->base = base and then JPAKE_Final.
 *
 * base and x2s will be allocated in the arena. The arena is *not* optional so
 * do not pass NULL for the arena parameter. The arena should be zeroed when it
 * is freed.
*/
SECStatus
JPAKE_Round2(PLArenaPool *arena, const SECItem *p, const SECItem *q,
             const SECItem *gx1, const SECItem *gx3, const SECItem *gx4,
             SECItem *base, const SECItem *x2, const SECItem *s, SECItem *x2s);

/* K = (B/g^(x2*x4*s))^x2 (mod p)
 *
 * K will be allocated in the arena. The arena is *not* optional so do not pass
 * NULL for the arena parameter. The arena should be zeroed when it is freed.
 */
SECStatus
JPAKE_Final(PLArenaPool *arena, const SECItem *p, const SECItem *q,
            const SECItem *x2, const SECItem *gx4, const SECItem *x2s,
            const SECItem *B, SECItem *K);

/******************************************************
** Elliptic Curve algorithms
*/

/* Generates a public and private key, both of which are encoded
** in a single ECPrivateKey struct. Params is input, privKey are
** output.
*/
extern SECStatus EC_NewKey(ECParams *params,
                           ECPrivateKey **privKey);

extern SECStatus EC_NewKeyFromSeed(ECParams *params,
                                   ECPrivateKey **privKey,
                                   const unsigned char *seed,
                                   int seedlen);

/* Validates an EC public key as described in Section 5.2.2 of
 * X9.62. Such validation prevents against small subgroup attacks
 * when the ECDH primitive is used with the cofactor.
 */
extern SECStatus EC_ValidatePublicKey(ECParams *params,
                                      SECItem *publicValue);

/*
** ECDH_Derive performs a scalar point multiplication of a point
** representing a (peer's) public key and a large integer representing
** a private key (its own). Both keys must use the same elliptic curve
** parameters. If the withCofactor parameter is true, the
** multiplication also uses the cofactor associated with the curve
** parameters.  The output of this scheme is the x-coordinate of the
** resulting point. If successful, derivedSecret->data is set to the
** address of the newly allocated buffer containing the derived
** secret, and derivedSecret->len is the size of the secret
** produced. It is the caller's responsibility to free the allocated
** buffer containing the derived secret.
*/
extern SECStatus ECDH_Derive(SECItem *publicValue,
                             ECParams *params,
                             SECItem *privateValue,
                             PRBool withCofactor,
                             SECItem *derivedSecret);

/* On input,  signature->len == size of buffer to hold signature.
**            digest->len    == size of digest.
** On output, signature->len == size of signature in buffer.
** Uses a random seed.
*/
extern SECStatus ECDSA_SignDigest(ECPrivateKey *key,
                                  SECItem *signature,
                                  const SECItem *digest);

/* On input,  signature->len == size of buffer to hold signature.
**            digest->len    == size of digest.
*/
extern SECStatus ECDSA_VerifyDigest(ECPublicKey *key,
                                    const SECItem *signature,
                                    const SECItem *digest);

/* Uses the provided seed. */
extern SECStatus ECDSA_SignDigestWithSeed(ECPrivateKey *key,
                                          SECItem *signature,
                                          const SECItem *digest,
                                          const unsigned char *seed,
                                          const int seedlen);

/******************************************/
/*
** RC4 symmetric stream cypher
*/

/*
** Create a new RC4 context suitable for RC4 encryption/decryption.
**  "key" raw key data
**  "len" the number of bytes of key data
*/
extern RC4Context *RC4_CreateContext(const unsigned char *key, int len);

extern RC4Context *RC4_AllocateContext(void);
extern SECStatus RC4_InitContext(RC4Context *cx,
                                 const unsigned char *key,
                                 unsigned int keylen,
                                 const unsigned char *,
                                 int,
                                 unsigned int,
                                 unsigned int);

/*
** Destroy an RC4 encryption/decryption context.
**  "cx" the context
**  "freeit" if PR_TRUE then free the object as well as its sub-objects
*/
extern void RC4_DestroyContext(RC4Context *cx, PRBool freeit);

/*
** Perform RC4 encryption.
**  "cx" the context
**  "output" the output buffer to store the encrypted data.
**  "outputLen" how much data is stored in "output". Set by the routine
**     after some data is stored in output.
**  "maxOutputLen" the maximum amount of data that can ever be
**     stored in "output"
**  "input" the input data
**  "inputLen" the amount of input data
*/
extern SECStatus RC4_Encrypt(RC4Context *cx, unsigned char *output,
                             unsigned int *outputLen, unsigned int maxOutputLen,
                             const unsigned char *input, unsigned int inputLen);

/*
** Perform RC4 decryption.
**  "cx" the context
**  "output" the output buffer to store the decrypted data.
**  "outputLen" how much data is stored in "output". Set by the routine
**     after some data is stored in output.
**  "maxOutputLen" the maximum amount of data that can ever be
**     stored in "output"
**  "input" the input data
**  "inputLen" the amount of input data
*/
extern SECStatus RC4_Decrypt(RC4Context *cx, unsigned char *output,
                             unsigned int *outputLen, unsigned int maxOutputLen,
                             const unsigned char *input, unsigned int inputLen);

/******************************************/
/*
** RC2 symmetric block cypher
*/

/*
** Create a new RC2 context suitable for RC2 encryption/decryption.
**  "key" raw key data
**  "len" the number of bytes of key data
**  "iv" is the CBC initialization vector (if mode is NSS_RC2_CBC)
**  "mode" one of NSS_RC2 or NSS_RC2_CBC
**  "effectiveKeyLen" is the effective key length (as specified in
**      RFC 2268) in bytes (not bits).
**
** When mode is set to NSS_RC2_CBC the RC2 cipher is run in "cipher block
** chaining" mode.
*/
extern RC2Context *RC2_CreateContext(const unsigned char *key, unsigned int len,
                                     const unsigned char *iv, int mode,
                                     unsigned effectiveKeyLen);
extern RC2Context *RC2_AllocateContext(void);
extern SECStatus RC2_InitContext(RC2Context *cx,
                                 const unsigned char *key,
                                 unsigned int keylen,
                                 const unsigned char *iv,
                                 int mode,
                                 unsigned int effectiveKeyLen,
                                 unsigned int);

/*
** Destroy an RC2 encryption/decryption context.
**  "cx" the context
**  "freeit" if PR_TRUE then free the object as well as its sub-objects
*/
extern void RC2_DestroyContext(RC2Context *cx, PRBool freeit);

/*
** Perform RC2 encryption.
**  "cx" the context
**  "output" the output buffer to store the encrypted data.
**  "outputLen" how much data is stored in "output". Set by the routine
**     after some data is stored in output.
**  "maxOutputLen" the maximum amount of data that can ever be
**     stored in "output"
**  "input" the input data
**  "inputLen" the amount of input data
*/
extern SECStatus RC2_Encrypt(RC2Context *cx, unsigned char *output,
                             unsigned int *outputLen, unsigned int maxOutputLen,
                             const unsigned char *input, unsigned int inputLen);

/*
** Perform RC2 decryption.
**  "cx" the context
**  "output" the output buffer to store the decrypted data.
**  "outputLen" how much data is stored in "output". Set by the routine
**     after some data is stored in output.
**  "maxOutputLen" the maximum amount of data that can ever be
**     stored in "output"
**  "input" the input data
**  "inputLen" the amount of input data
*/
extern SECStatus RC2_Decrypt(RC2Context *cx, unsigned char *output,
                             unsigned int *outputLen, unsigned int maxOutputLen,
                             const unsigned char *input, unsigned int inputLen);

/******************************************/
/*
** RC5 symmetric block cypher -- 64-bit block size
*/

/*
** Create a new RC5 context suitable for RC5 encryption/decryption.
**      "key" raw key data
**      "len" the number of bytes of key data
**      "iv" is the CBC initialization vector (if mode is NSS_RC5_CBC)
**      "mode" one of NSS_RC5 or NSS_RC5_CBC
**
** When mode is set to NSS_RC5_CBC the RC5 cipher is run in "cipher block
** chaining" mode.
*/
extern RC5Context *RC5_CreateContext(const SECItem *key, unsigned int rounds,
                                     unsigned int wordSize, const unsigned char *iv, int mode);
extern RC5Context *RC5_AllocateContext(void);
extern SECStatus RC5_InitContext(RC5Context *cx,
                                 const unsigned char *key,
                                 unsigned int keylen,
                                 const unsigned char *iv,
                                 int mode,
                                 unsigned int rounds,
                                 unsigned int wordSize);

/*
** Destroy an RC5 encryption/decryption context.
**      "cx" the context
**      "freeit" if PR_TRUE then free the object as well as its sub-objects
*/
extern void RC5_DestroyContext(RC5Context *cx, PRBool freeit);

/*
** Perform RC5 encryption.
**      "cx" the context
**      "output" the output buffer to store the encrypted data.
**      "outputLen" how much data is stored in "output". Set by the routine
**         after some data is stored in output.
**      "maxOutputLen" the maximum amount of data that can ever be
**         stored in "output"
**      "input" the input data
**      "inputLen" the amount of input data
*/
extern SECStatus RC5_Encrypt(RC5Context *cx, unsigned char *output,
                             unsigned int *outputLen, unsigned int maxOutputLen,
                             const unsigned char *input, unsigned int inputLen);

/*
** Perform RC5 decryption.
**      "cx" the context
**      "output" the output buffer to store the decrypted data.
**      "outputLen" how much data is stored in "output". Set by the routine
**         after some data is stored in output.
**      "maxOutputLen" the maximum amount of data that can ever be
**         stored in "output"
**      "input" the input data
**      "inputLen" the amount of input data
*/

extern SECStatus RC5_Decrypt(RC5Context *cx, unsigned char *output,
                             unsigned int *outputLen, unsigned int maxOutputLen,
                             const unsigned char *input, unsigned int inputLen);

/******************************************/
/*
** DES symmetric block cypher
*/

/*
** Create a new DES context suitable for DES encryption/decryption.
**  "key" raw key data
**  "len" the number of bytes of key data
**  "iv" is the CBC initialization vector (if mode is NSS_DES_CBC or
**     mode is DES_EDE3_CBC)
**  "mode" one of NSS_DES, NSS_DES_CBC, NSS_DES_EDE3 or NSS_DES_EDE3_CBC
**  "encrypt" is PR_TRUE if the context will be used for encryption
**
** When mode is set to NSS_DES_CBC or NSS_DES_EDE3_CBC then the DES
** cipher is run in "cipher block chaining" mode.
*/
extern DESContext *DES_CreateContext(const unsigned char *key,
                                     const unsigned char *iv,
                                     int mode, PRBool encrypt);
extern DESContext *DES_AllocateContext(void);
extern SECStatus DES_InitContext(DESContext *cx,
                                 const unsigned char *key,
                                 unsigned int keylen,
                                 const unsigned char *iv,
                                 int mode,
                                 unsigned int encrypt,
                                 unsigned int);

/*
** Destroy an DES encryption/decryption context.
**  "cx" the context
**  "freeit" if PR_TRUE then free the object as well as its sub-objects
*/
extern void DES_DestroyContext(DESContext *cx, PRBool freeit);

/*
** Perform DES encryption.
**  "cx" the context
**  "output" the output buffer to store the encrypted data.
**  "outputLen" how much data is stored in "output". Set by the routine
**     after some data is stored in output.
**  "maxOutputLen" the maximum amount of data that can ever be
**     stored in "output"
**  "input" the input data
**  "inputLen" the amount of input data
**
** NOTE: the inputLen must be a multiple of DES_KEY_LENGTH
*/
extern SECStatus DES_Encrypt(DESContext *cx, unsigned char *output,
                             unsigned int *outputLen, unsigned int maxOutputLen,
                             const unsigned char *input, unsigned int inputLen);

/*
** Perform DES decryption.
**  "cx" the context
**  "output" the output buffer to store the decrypted data.
**  "outputLen" how much data is stored in "output". Set by the routine
**     after some data is stored in output.
**  "maxOutputLen" the maximum amount of data that can ever be
**     stored in "output"
**  "input" the input data
**  "inputLen" the amount of input data
**
** NOTE: the inputLen must be a multiple of DES_KEY_LENGTH
*/
extern SECStatus DES_Decrypt(DESContext *cx, unsigned char *output,
                             unsigned int *outputLen, unsigned int maxOutputLen,
                             const unsigned char *input, unsigned int inputLen);

/******************************************/
/*
** SEED symmetric block cypher
*/
extern SEEDContext *
SEED_CreateContext(const unsigned char *key, const unsigned char *iv,
                   int mode, PRBool encrypt);
extern SEEDContext *SEED_AllocateContext(void);
extern SECStatus SEED_InitContext(SEEDContext *cx,
                                  const unsigned char *key,
                                  unsigned int keylen,
                                  const unsigned char *iv,
                                  int mode, unsigned int encrypt,
                                  unsigned int);
extern void SEED_DestroyContext(SEEDContext *cx, PRBool freeit);
extern SECStatus
SEED_Encrypt(SEEDContext *cx, unsigned char *output,
             unsigned int *outputLen, unsigned int maxOutputLen,
             const unsigned char *input, unsigned int inputLen);
extern SECStatus
SEED_Decrypt(SEEDContext *cx, unsigned char *output,
             unsigned int *outputLen, unsigned int maxOutputLen,
             const unsigned char *input, unsigned int inputLen);

/******************************************/
/*
** AES symmetric block cypher (Rijndael)
*/

/*
** Create a new AES context suitable for AES encryption/decryption.
**  "key" raw key data
**  "keylen" the number of bytes of key data (16, 24, or 32)
**  "blocklen" is the blocksize to use. NOTE: only 16 is supported!
*/
extern AESContext *
AES_CreateContext(const unsigned char *key, const unsigned char *iv,
                  int mode, int encrypt,
                  unsigned int keylen, unsigned int blocklen);
extern AESContext *AES_AllocateContext(void);
extern SECStatus AES_InitContext(AESContext *cx,
                                 const unsigned char *key,
                                 unsigned int keylen,
                                 const unsigned char *iv,
                                 int mode,
                                 unsigned int encrypt,
                                 unsigned int blocklen);

/*
** Destroy a AES encryption/decryption context.
**  "cx" the context
**  "freeit" if PR_TRUE then free the object as well as its sub-objects
*/
extern void
AES_DestroyContext(AESContext *cx, PRBool freeit);

/*
** Perform AES encryption.
**  "cx" the context
**  "output" the output buffer to store the encrypted data.
**  "outputLen" how much data is stored in "output". Set by the routine
**     after some data is stored in output.
**  "maxOutputLen" the maximum amount of data that can ever be
**     stored in "output"
**  "input" the input data
**  "inputLen" the amount of input data
*/
extern SECStatus
AES_Encrypt(AESContext *cx, unsigned char *output,
            unsigned int *outputLen, unsigned int maxOutputLen,
            const unsigned char *input, unsigned int inputLen);

/*
** Perform AES decryption.
**  "cx" the context
**  "output" the output buffer to store the decrypted data.
**  "outputLen" how much data is stored in "output". Set by the routine
**     after some data is stored in output.
**  "maxOutputLen" the maximum amount of data that can ever be
**     stored in "output"
**  "input" the input data
**  "inputLen" the amount of input data
*/
extern SECStatus
AES_Decrypt(AESContext *cx, unsigned char *output,
            unsigned int *outputLen, unsigned int maxOutputLen,
            const unsigned char *input, unsigned int inputLen);

/******************************************/
/*
** AES key wrap algorithm, RFC 3394
*/

/*
** Create a new AES context suitable for AES encryption/decryption.
**  "key" raw key data
**      "iv"  The 8 byte "initial value"
**      "encrypt", a boolean, true for key wrapping, false for unwrapping.
**  "keylen" the number of bytes of key data (16, 24, or 32)
*/
extern AESKeyWrapContext *
AESKeyWrap_CreateContext(const unsigned char *key, const unsigned char *iv,
                         int encrypt, unsigned int keylen);
extern AESKeyWrapContext *AESKeyWrap_AllocateContext(void);
extern SECStatus
AESKeyWrap_InitContext(AESKeyWrapContext *cx,
                       const unsigned char *key,
                       unsigned int keylen,
                       const unsigned char *iv,
                       int,
                       unsigned int encrypt,
                       unsigned int);

/*
** Destroy a AES KeyWrap context.
**  "cx" the context
**  "freeit" if PR_TRUE then free the object as well as its sub-objects
*/
extern void
AESKeyWrap_DestroyContext(AESKeyWrapContext *cx, PRBool freeit);

/*
** Perform AES key wrap.
**  "cx" the context
**  "output" the output buffer to store the encrypted data.
**  "outputLen" how much data is stored in "output". Set by the routine
**     after some data is stored in output.
**  "maxOutputLen" the maximum amount of data that can ever be
**     stored in "output"
**  "input" the input data
**  "inputLen" the amount of input data
*/
extern SECStatus
AESKeyWrap_Encrypt(AESKeyWrapContext *cx, unsigned char *output,
                   unsigned int *outputLen, unsigned int maxOutputLen,
                   const unsigned char *input, unsigned int inputLen);

/*
** Perform AES key unwrap.
**  "cx" the context
**  "output" the output buffer to store the decrypted data.
**  "outputLen" how much data is stored in "output". Set by the routine
**     after some data is stored in output.
**  "maxOutputLen" the maximum amount of data that can ever be
**     stored in "output"
**  "input" the input data
**  "inputLen" the amount of input data
*/
extern SECStatus
AESKeyWrap_Decrypt(AESKeyWrapContext *cx, unsigned char *output,
                   unsigned int *outputLen, unsigned int maxOutputLen,
                   const unsigned char *input, unsigned int inputLen);

/******************************************/
/*
** Camellia symmetric block cypher
*/

/*
** Create a new Camellia context suitable for Camellia encryption/decryption.
**  "key" raw key data
**  "keylen" the number of bytes of key data (16, 24, or 32)
*/
extern CamelliaContext *
Camellia_CreateContext(const unsigned char *key, const unsigned char *iv,
                       int mode, int encrypt, unsigned int keylen);

extern CamelliaContext *Camellia_AllocateContext(void);
extern SECStatus Camellia_InitContext(CamelliaContext *cx,
                                      const unsigned char *key,
                                      unsigned int keylen,
                                      const unsigned char *iv,
                                      int mode,
                                      unsigned int encrypt,
                                      unsigned int unused);
/*
** Destroy a Camellia encryption/decryption context.
**  "cx" the context
**  "freeit" if PR_TRUE then free the object as well as its sub-objects
*/
extern void
Camellia_DestroyContext(CamelliaContext *cx, PRBool freeit);

/*
** Perform Camellia encryption.
**  "cx" the context
**  "output" the output buffer to store the encrypted data.
**  "outputLen" how much data is stored in "output". Set by the routine
**     after some data is stored in output.
**  "maxOutputLen" the maximum amount of data that can ever be
**     stored in "output"
**  "input" the input data
**  "inputLen" the amount of input data
*/
extern SECStatus
Camellia_Encrypt(CamelliaContext *cx, unsigned char *output,
                 unsigned int *outputLen, unsigned int maxOutputLen,
                 const unsigned char *input, unsigned int inputLen);

/*
** Perform Camellia decryption.
**  "cx" the context
**  "output" the output buffer to store the decrypted data.
**  "outputLen" how much data is stored in "output". Set by the routine
**     after some data is stored in output.
**  "maxOutputLen" the maximum amount of data that can ever be
**     stored in "output"
**  "input" the input data
**  "inputLen" the amount of input data
*/
extern SECStatus
Camellia_Decrypt(CamelliaContext *cx, unsigned char *output,
                 unsigned int *outputLen, unsigned int maxOutputLen,
                 const unsigned char *input, unsigned int inputLen);

/******************************************/
/*
** ChaCha20+Poly1305 AEAD
*/

extern SECStatus ChaCha20Poly1305_InitContext(ChaCha20Poly1305Context *ctx,
                                              const unsigned char *key,
                                              unsigned int keyLen,
                                              unsigned int tagLen);

extern ChaCha20Poly1305Context *ChaCha20Poly1305_CreateContext(
    const unsigned char *key, unsigned int keyLen, unsigned int tagLen);

extern void ChaCha20Poly1305_DestroyContext(ChaCha20Poly1305Context *ctx,
                                            PRBool freeit);

extern SECStatus ChaCha20Poly1305_Seal(
    const ChaCha20Poly1305Context *ctx, unsigned char *output,
    unsigned int *outputLen, unsigned int maxOutputLen,
    const unsigned char *input, unsigned int inputLen,
    const unsigned char *nonce, unsigned int nonceLen,
    const unsigned char *ad, unsigned int adLen);

extern SECStatus ChaCha20Poly1305_Open(
    const ChaCha20Poly1305Context *ctx, unsigned char *output,
    unsigned int *outputLen, unsigned int maxOutputLen,
    const unsigned char *input, unsigned int inputLen,
    const unsigned char *nonce, unsigned int nonceLen,
    const unsigned char *ad, unsigned int adLen);

/******************************************/
/*
** MD5 secure hash function
*/

/*
** Hash a null terminated string "src" into "dest" using MD5
*/
extern SECStatus MD5_Hash(unsigned char *dest, const char *src);

/*
** Hash a non-null terminated string "src" into "dest" using MD5
*/
extern SECStatus MD5_HashBuf(unsigned char *dest, const unsigned char *src,
                             PRUint32 src_length);

/*
** Create a new MD5 context
*/
extern MD5Context *MD5_NewContext(void);

/*
** Destroy an MD5 secure hash context.
**  "cx" the context
**  "freeit" if PR_TRUE then free the object as well as its sub-objects
*/
extern void MD5_DestroyContext(MD5Context *cx, PRBool freeit);

/*
** Reset an MD5 context, preparing it for a fresh round of hashing
*/
extern void MD5_Begin(MD5Context *cx);

/*
** Update the MD5 hash function with more data.
**  "cx" the context
**  "input" the data to hash
**  "inputLen" the amount of data to hash
*/
extern void MD5_Update(MD5Context *cx,
                       const unsigned char *input, unsigned int inputLen);

/*
** Finish the MD5 hash function. Produce the digested results in "digest"
**  "cx" the context
**  "digest" where the 16 bytes of digest data are stored
**  "digestLen" where the digest length (16) is stored
**  "maxDigestLen" the maximum amount of data that can ever be
**     stored in "digest"
*/
extern void MD5_End(MD5Context *cx, unsigned char *digest,
                    unsigned int *digestLen, unsigned int maxDigestLen);

/*
** Export the current state of the MD5 hash without appending the standard
** padding and length bytes. Produce the digested results in "digest"
**  "cx" the context
**  "digest" where the 16 bytes of digest data are stored
**  "digestLen" where the digest length (16) is stored (optional)
**  "maxDigestLen" the maximum amount of data that can ever be
**     stored in "digest"
*/
extern void MD5_EndRaw(MD5Context *cx, unsigned char *digest,
                       unsigned int *digestLen, unsigned int maxDigestLen);

/*
 * Return the the size of a buffer needed to flatten the MD5 Context into
 *    "cx" the context
 *  returns size;
 */
extern unsigned int MD5_FlattenSize(MD5Context *cx);

/*
 * Flatten the MD5 Context into a buffer:
 *    "cx" the context
 *    "space" the buffer to flatten to
 *  returns status;
 */
extern SECStatus MD5_Flatten(MD5Context *cx, unsigned char *space);

/*
 * Resurrect a flattened context into a MD5 Context
 *    "space" the buffer of the flattend buffer
 *    "arg" ptr to void used by cryptographic resurrect
 *  returns resurected context;
 */
extern MD5Context *MD5_Resurrect(unsigned char *space, void *arg);
extern void MD5_Clone(MD5Context *dest, MD5Context *src);

/*
** trace the intermediate state info of the MD5 hash.
*/
extern void MD5_TraceState(MD5Context *cx);

/******************************************/
/*
** MD2 secure hash function
*/

/*
** Hash a null terminated string "src" into "dest" using MD2
*/
extern SECStatus MD2_Hash(unsigned char *dest, const char *src);

/*
** Create a new MD2 context
*/
extern MD2Context *MD2_NewContext(void);

/*
** Destroy an MD2 secure hash context.
**  "cx" the context
**  "freeit" if PR_TRUE then free the object as well as its sub-objects
*/
extern void MD2_DestroyContext(MD2Context *cx, PRBool freeit);

/*
** Reset an MD2 context, preparing it for a fresh round of hashing
*/
extern void MD2_Begin(MD2Context *cx);

/*
** Update the MD2 hash function with more data.
**  "cx" the context
**  "input" the data to hash
**  "inputLen" the amount of data to hash
*/
extern void MD2_Update(MD2Context *cx,
                       const unsigned char *input, unsigned int inputLen);

/*
** Finish the MD2 hash function. Produce the digested results in "digest"
**  "cx" the context
**  "digest" where the 16 bytes of digest data are stored
**  "digestLen" where the digest length (16) is stored
**  "maxDigestLen" the maximum amount of data that can ever be
**     stored in "digest"
*/
extern void MD2_End(MD2Context *cx, unsigned char *digest,
                    unsigned int *digestLen, unsigned int maxDigestLen);

/*
 * Return the the size of a buffer needed to flatten the MD2 Context into
 *    "cx" the context
 *  returns size;
 */
extern unsigned int MD2_FlattenSize(MD2Context *cx);

/*
 * Flatten the MD2 Context into a buffer:
 *    "cx" the context
 *    "space" the buffer to flatten to
 *  returns status;
 */
extern SECStatus MD2_Flatten(MD2Context *cx, unsigned char *space);

/*
 * Resurrect a flattened context into a MD2 Context
 *    "space" the buffer of the flattend buffer
 *    "arg" ptr to void used by cryptographic resurrect
 *  returns resurected context;
 */
extern MD2Context *MD2_Resurrect(unsigned char *space, void *arg);
extern void MD2_Clone(MD2Context *dest, MD2Context *src);

/******************************************/
/*
** SHA-1 secure hash function
*/

/*
** Hash a null terminated string "src" into "dest" using SHA-1
*/
extern SECStatus SHA1_Hash(unsigned char *dest, const char *src);

/*
** Hash a non-null terminated string "src" into "dest" using SHA-1
*/
extern SECStatus SHA1_HashBuf(unsigned char *dest, const unsigned char *src,
                              PRUint32 src_length);

/*
** Create a new SHA-1 context
*/
extern SHA1Context *SHA1_NewContext(void);

/*
** Destroy a SHA-1 secure hash context.
**  "cx" the context
**  "freeit" if PR_TRUE then free the object as well as its sub-objects
*/
extern void SHA1_DestroyContext(SHA1Context *cx, PRBool freeit);

/*
** Reset a SHA-1 context, preparing it for a fresh round of hashing
*/
extern void SHA1_Begin(SHA1Context *cx);

/*
** Update the SHA-1 hash function with more data.
**  "cx" the context
**  "input" the data to hash
**  "inputLen" the amount of data to hash
*/
extern void SHA1_Update(SHA1Context *cx, const unsigned char *input,
                        unsigned int inputLen);

/*
** Finish the SHA-1 hash function. Produce the digested results in "digest"
**  "cx" the context
**  "digest" where the 16 bytes of digest data are stored
**  "digestLen" where the digest length (20) is stored
**  "maxDigestLen" the maximum amount of data that can ever be
**     stored in "digest"
*/
extern void SHA1_End(SHA1Context *cx, unsigned char *digest,
                     unsigned int *digestLen, unsigned int maxDigestLen);

/*
** Export the current state of the SHA-1 hash without appending the standard
** padding and length bytes. Produce the digested results in "digest"
**  "cx" the context
**  "digest" where the 20 bytes of digest data are stored
**  "digestLen" where the digest length (20) is stored (optional)
**  "maxDigestLen" the maximum amount of data that can ever be
**     stored in "digest"
*/
extern void SHA1_EndRaw(SHA1Context *cx, unsigned char *digest,
                        unsigned int *digestLen, unsigned int maxDigestLen);

/*
** trace the intermediate state info of the SHA1 hash.
*/
extern void SHA1_TraceState(SHA1Context *cx);

/*
 * Return the the size of a buffer needed to flatten the SHA-1 Context into
 *    "cx" the context
 *  returns size;
 */
extern unsigned int SHA1_FlattenSize(SHA1Context *cx);

/*
 * Flatten the SHA-1 Context into a buffer:
 *    "cx" the context
 *    "space" the buffer to flatten to
 *  returns status;
 */
extern SECStatus SHA1_Flatten(SHA1Context *cx, unsigned char *space);

/*
 * Resurrect a flattened context into a SHA-1 Context
 *    "space" the buffer of the flattend buffer
 *    "arg" ptr to void used by cryptographic resurrect
 *  returns resurected context;
 */
extern SHA1Context *SHA1_Resurrect(unsigned char *space, void *arg);
extern void SHA1_Clone(SHA1Context *dest, SHA1Context *src);

/******************************************/

extern SHA224Context *SHA224_NewContext(void);
extern void SHA224_DestroyContext(SHA224Context *cx, PRBool freeit);
extern void SHA224_Begin(SHA224Context *cx);
extern void SHA224_Update(SHA224Context *cx, const unsigned char *input,
                          unsigned int inputLen);
extern void SHA224_End(SHA224Context *cx, unsigned char *digest,
                       unsigned int *digestLen, unsigned int maxDigestLen);
/*
** Export the current state of the SHA-224 hash without appending the standard
** padding and length bytes. Produce the digested results in "digest"
**  "cx" the context
**  "digest" where the 28 bytes of digest data are stored
**  "digestLen" where the digest length (28) is stored (optional)
**  "maxDigestLen" the maximum amount of data that can ever be
**     stored in "digest"
*/
extern void SHA224_EndRaw(SHA224Context *cx, unsigned char *digest,
                          unsigned int *digestLen, unsigned int maxDigestLen);
extern SECStatus SHA224_HashBuf(unsigned char *dest, const unsigned char *src,
                                PRUint32 src_length);
extern SECStatus SHA224_Hash(unsigned char *dest, const char *src);
extern void SHA224_TraceState(SHA224Context *cx);
extern unsigned int SHA224_FlattenSize(SHA224Context *cx);
extern SECStatus SHA224_Flatten(SHA224Context *cx, unsigned char *space);
extern SHA224Context *SHA224_Resurrect(unsigned char *space, void *arg);
extern void SHA224_Clone(SHA224Context *dest, SHA224Context *src);

/******************************************/

extern SHA256Context *SHA256_NewContext(void);
extern void SHA256_DestroyContext(SHA256Context *cx, PRBool freeit);
extern void SHA256_Begin(SHA256Context *cx);
extern void SHA256_Update(SHA256Context *cx, const unsigned char *input,
                          unsigned int inputLen);
extern void SHA256_End(SHA256Context *cx, unsigned char *digest,
                       unsigned int *digestLen, unsigned int maxDigestLen);
/*
** Export the current state of the SHA-256 hash without appending the standard
** padding and length bytes. Produce the digested results in "digest"
**  "cx" the context
**  "digest" where the 32 bytes of digest data are stored
**  "digestLen" where the digest length (32) is stored (optional)
**  "maxDigestLen" the maximum amount of data that can ever be
**     stored in "digest"
*/
extern void SHA256_EndRaw(SHA256Context *cx, unsigned char *digest,
                          unsigned int *digestLen, unsigned int maxDigestLen);
extern SECStatus SHA256_HashBuf(unsigned char *dest, const unsigned char *src,
                                PRUint32 src_length);
extern SECStatus SHA256_Hash(unsigned char *dest, const char *src);
extern void SHA256_TraceState(SHA256Context *cx);
extern unsigned int SHA256_FlattenSize(SHA256Context *cx);
extern SECStatus SHA256_Flatten(SHA256Context *cx, unsigned char *space);
extern SHA256Context *SHA256_Resurrect(unsigned char *space, void *arg);
extern void SHA256_Clone(SHA256Context *dest, SHA256Context *src);

/******************************************/

extern SHA512Context *SHA512_NewContext(void);
extern void SHA512_DestroyContext(SHA512Context *cx, PRBool freeit);
extern void SHA512_Begin(SHA512Context *cx);
extern void SHA512_Update(SHA512Context *cx, const unsigned char *input,
                          unsigned int inputLen);
/*
** Export the current state of the SHA-512 hash without appending the standard
** padding and length bytes. Produce the digested results in "digest"
**  "cx" the context
**  "digest" where the 64 bytes of digest data are stored
**  "digestLen" where the digest length (64) is stored (optional)
**  "maxDigestLen" the maximum amount of data that can ever be
**     stored in "digest"
*/
extern void SHA512_EndRaw(SHA512Context *cx, unsigned char *digest,
                          unsigned int *digestLen, unsigned int maxDigestLen);
extern void SHA512_End(SHA512Context *cx, unsigned char *digest,
                       unsigned int *digestLen, unsigned int maxDigestLen);
extern SECStatus SHA512_HashBuf(unsigned char *dest, const unsigned char *src,
                                PRUint32 src_length);
extern SECStatus SHA512_Hash(unsigned char *dest, const char *src);
extern void SHA512_TraceState(SHA512Context *cx);
extern unsigned int SHA512_FlattenSize(SHA512Context *cx);
extern SECStatus SHA512_Flatten(SHA512Context *cx, unsigned char *space);
extern SHA512Context *SHA512_Resurrect(unsigned char *space, void *arg);
extern void SHA512_Clone(SHA512Context *dest, SHA512Context *src);

/******************************************/

extern SHA384Context *SHA384_NewContext(void);
extern void SHA384_DestroyContext(SHA384Context *cx, PRBool freeit);
extern void SHA384_Begin(SHA384Context *cx);
extern void SHA384_Update(SHA384Context *cx, const unsigned char *input,
                          unsigned int inputLen);
extern void SHA384_End(SHA384Context *cx, unsigned char *digest,
                       unsigned int *digestLen, unsigned int maxDigestLen);
/*
** Export the current state of the SHA-384 hash without appending the standard
** padding and length bytes. Produce the digested results in "digest"
**  "cx" the context
**  "digest" where the 48 bytes of digest data are stored
**  "digestLen" where the digest length (48) is stored (optional)
**  "maxDigestLen" the maximum amount of data that can ever be
**     stored in "digest"
*/
extern void SHA384_EndRaw(SHA384Context *cx, unsigned char *digest,
                          unsigned int *digestLen, unsigned int maxDigestLen);
extern SECStatus SHA384_HashBuf(unsigned char *dest, const unsigned char *src,
                                PRUint32 src_length);
extern SECStatus SHA384_Hash(unsigned char *dest, const char *src);
extern void SHA384_TraceState(SHA384Context *cx);
extern unsigned int SHA384_FlattenSize(SHA384Context *cx);
extern SECStatus SHA384_Flatten(SHA384Context *cx, unsigned char *space);
extern SHA384Context *SHA384_Resurrect(unsigned char *space, void *arg);
extern void SHA384_Clone(SHA384Context *dest, SHA384Context *src);

/****************************************
 * implement TLS 1.0 Pseudo Random Function (PRF) and TLS P_hash function
 */

extern SECStatus
TLS_PRF(const SECItem *secret, const char *label, SECItem *seed,
        SECItem *result, PRBool isFIPS);

extern SECStatus
TLS_P_hash(HASH_HashType hashAlg, const SECItem *secret, const char *label,
           SECItem *seed, SECItem *result, PRBool isFIPS);

/******************************************/
/*
** Implements the Blake2b hash function.
*/

/*
** Hash a null terminated string "src" into "dest" using Blake2b
*/
extern SECStatus BLAKE2B_Hash(unsigned char *dest, const char *src);

/*
** Hash a non-null terminated string "src" into "dest" using Blake2b
*/
extern SECStatus BLAKE2B_HashBuf(unsigned char *output,
                                 const unsigned char *input, PRUint32 inlen);

extern SECStatus BLAKE2B_MAC_HashBuf(unsigned char *output,
                                     const unsigned char *input,
                                     unsigned int inlen,
                                     const unsigned char *key,
                                     unsigned int keylen);

/*
** Create a new Blake2b context
*/
extern BLAKE2BContext *BLAKE2B_NewContext();

/*
** Destroy a Blake2b secure hash context.
**  "ctx" the context
**  "freeit" if PR_TRUE then free the object as well as its sub-objects
*/
extern void BLAKE2B_DestroyContext(BLAKE2BContext *ctx, PRBool freeit);

/*
** Reset a Blake2b context, preparing it for a fresh round of hashing
*/
extern SECStatus BLAKE2B_Begin(BLAKE2BContext *ctx);

extern SECStatus BLAKE2B_MAC_Begin(BLAKE2BContext *ctx, const PRUint8 *key,
                                   const size_t keylen);

/*
** Update the Blake hash function with more data.
*/
extern SECStatus BLAKE2B_Update(BLAKE2BContext *ctx, const unsigned char *in,
                                unsigned int inlen);

/*
** Finish the Blake hash function. Produce the digested results in "digest"
*/
extern SECStatus BLAKE2B_End(BLAKE2BContext *ctx, unsigned char *out,
                             unsigned int *digestLen, size_t maxDigestLen);

/*
 * Return the size of a buffer needed to flatten the Blake2b Context into
 *    "ctx" the context
 *  returns size;
 */
extern unsigned int BLAKE2B_FlattenSize(BLAKE2BContext *ctx);

/*
 * Flatten the Blake2b Context into a buffer:
 *    "ctx" the context
 *    "space" the buffer to flatten to
 *  returns status;
 */
extern SECStatus BLAKE2B_Flatten(BLAKE2BContext *ctx, unsigned char *space);

/*
 * Resurrect a flattened context into a Blake2b Context
 *    "space" the buffer of the flattend buffer
 *    "arg" ptr to void used by cryptographic resurrect
 *  returns resurected context
 */
extern BLAKE2BContext *BLAKE2B_Resurrect(unsigned char *space, void *arg);
extern void BLAKE2B_Clone(BLAKE2BContext *dest, BLAKE2BContext *src);

/******************************************/
/*
** Pseudo Random Number Generation.  FIPS compliance desirable.
*/

/*
** Initialize the global RNG context and give it some seed input taken
** from the system.  This function is thread-safe and will only allow
** the global context to be initialized once.  The seed input is likely
** small, so it is imperative that RNG_RandomUpdate() be called with
** additional seed data before the generator is used.  A good way to
** provide the generator with additional entropy is to call
** RNG_SystemInfoForRNG().  Note that NSS_Init() does exactly that.
*/
extern SECStatus RNG_RNGInit(void);

/*
** Update the global random number generator with more seeding
** material
*/
extern SECStatus RNG_RandomUpdate(const void *data, size_t bytes);

/*
** Generate some random bytes, using the global random number generator
** object.
*/
extern SECStatus RNG_GenerateGlobalRandomBytes(void *dest, size_t len);

/* Destroy the global RNG context.  After a call to RNG_RNGShutdown()
** a call to RNG_RNGInit() is required in order to use the generator again,
** along with seed data (see the comment above RNG_RNGInit()).
*/
extern void RNG_RNGShutdown(void);

extern void RNG_SystemInfoForRNG(void);

/*
 * FIPS 186-2 Change Notice 1 RNG Algorithm 1, used both to
 * generate the DSA X parameter and as a generic purpose RNG.
 *
 * The following two FIPS186Change functions are needed for
 * NIST RNG Validation System.
 */

/*
 * FIPS186Change_GenerateX is now deprecated. It will return SECFailure with
 * the error set to PR_NOT_IMPLEMENTED_ERROR.
 */
extern SECStatus
FIPS186Change_GenerateX(unsigned char *XKEY,
                        const unsigned char *XSEEDj,
                        unsigned char *x_j);

/*
 * When generating the DSA X parameter, we generate 2*GSIZE bytes
 * of random output and reduce it mod q.
 *
 * Input: w, 2*GSIZE bytes
 *        q, DSA_SUBPRIME_LEN bytes
 * Output: xj, DSA_SUBPRIME_LEN bytes
 */
extern SECStatus
FIPS186Change_ReduceModQForDSA(const unsigned char *w,
                               const unsigned char *q,
                               unsigned char *xj);

/* To allow NIST KAT tests */
extern SECStatus
PRNGTEST_Instantiate_Kat(const PRUint8 *entropy, unsigned int entropy_len,
                         const PRUint8 *nonce, unsigned int nonce_len,
                         const PRUint8 *personal_string, unsigned int ps_len);

/*
 * The following functions are for FIPS poweron self test and FIPS algorithm
 * testing.
 */
extern SECStatus
PRNGTEST_Instantiate(const PRUint8 *entropy, unsigned int entropy_len,
                     const PRUint8 *nonce, unsigned int nonce_len,
                     const PRUint8 *personal_string, unsigned int ps_len);

extern SECStatus
PRNGTEST_Reseed(const PRUint8 *entropy, unsigned int entropy_len,
                const PRUint8 *additional, unsigned int additional_len);

extern SECStatus
PRNGTEST_Generate(PRUint8 *bytes, unsigned int bytes_len,
                  const PRUint8 *additional, unsigned int additional_len);

extern SECStatus
PRNGTEST_Uninstantiate(void);

extern SECStatus
PRNGTEST_RunHealthTests(void);

/* Generate PQGParams and PQGVerify structs.
 * Length of seed and length of h both equal length of P.
 * All lengths are specified by "j", according to the table above.
 *
 * The verify parameters will conform to FIPS186-1.
 */
extern SECStatus
PQG_ParamGen(unsigned int j,      /* input : determines length of P. */
             PQGParams **pParams, /* output: P Q and G returned here */
             PQGVerify **pVfy);   /* output: counter and seed. */

/* Generate PQGParams and PQGVerify structs.
 * Length of P specified by j.  Length of h will match length of P.
 * Length of SEED in bytes specified in seedBytes.
 * seedBbytes must be in the range [20..255] or an error will result.
 *
 * The verify parameters will conform to FIPS186-1.
 */
extern SECStatus
PQG_ParamGenSeedLen(
    unsigned int j,         /* input : determines length of P. */
    unsigned int seedBytes, /* input : length of seed in bytes.*/
    PQGParams **pParams,    /* output: P Q and G returned here */
    PQGVerify **pVfy);      /* output: counter and seed. */

/* Generate PQGParams and PQGVerify structs.
 * Length of P specified by L in bits.
 * Length of Q specified by N in bits.
 * Length of SEED in bytes specified in seedBytes.
 * seedBbytes must be in the range [N..L*2] or an error will result.
 *
 * Not that J uses the above table, L is the length exact. L and N must
 * match the table below or an error will result:
 *
 *  L            N
 * 1024         160
 * 2048         224
 * 2048         256
 * 3072         256
 *
 * If N or seedBytes are set to zero, then PQG_ParamGenSeedLen will
 * pick a default value (typically the smallest secure value for these
 * variables).
 *
 * The verify parameters will conform to FIPS186-3 using the smallest
 * permissible hash for the key strength.
 */
extern SECStatus
PQG_ParamGenV2(
    unsigned int L,         /* input : determines length of P. */
    unsigned int N,         /* input : determines length of Q. */
    unsigned int seedBytes, /* input : length of seed in bytes.*/
    PQGParams **pParams,    /* output: P Q and G returned here */
    PQGVerify **pVfy);      /* output: counter and seed. */

/*  Test PQGParams for validity as DSS PQG values.
 *  If vfy is non-NULL, test PQGParams to make sure they were generated
 *       using the specified seed, counter, and h values.
 *
 *  Return value indicates whether Verification operation ran successfully
 *  to completion, but does not indicate if PQGParams are valid or not.
 *  If return value is SECSuccess, then *pResult has these meanings:
 *       SECSuccess: PQGParams are valid.
 *       SECFailure: PQGParams are invalid.
 *
 * Verify the PQG againts the counter, SEED and h.
 * These tests are specified in FIPS 186-3 Appendix A.1.1.1, A.1.1.3, and A.2.2
 * PQG_VerifyParams will automatically choose the appropriate test.
 */

extern SECStatus PQG_VerifyParams(const PQGParams *params,
                                  const PQGVerify *vfy, SECStatus *result);

extern void PQG_DestroyParams(PQGParams *params);

extern void PQG_DestroyVerify(PQGVerify *vfy);

/*
 * clean-up any global tables freebl may have allocated after it starts up.
 * This function is not thread safe and should be called only after the
 * library has been quiessed.
 */
extern void BL_Cleanup(void);

/* unload freebl shared library from memory */
extern void BL_Unload(void);

/**************************************************************************
 *  Verify a given Shared library signature                               *
 **************************************************************************/
PRBool BLAPI_SHVerify(const char *name, PRFuncPtr addr);

/**************************************************************************
 *  Verify a given filename's signature                               *
 **************************************************************************/
PRBool BLAPI_SHVerifyFile(const char *shName);

/**************************************************************************
 *  Verify Are Own Shared library signature                               *
 **************************************************************************/
PRBool BLAPI_VerifySelf(const char *name);

/*********************************************************************/
extern const SECHashObject *HASH_GetRawHashObject(HASH_HashType hashType);

extern void BL_SetForkState(PRBool forked);

/*
** pepare an ECParam structure from DEREncoded params
 */
extern SECStatus EC_FillParams(PLArenaPool *arena,
                               const SECItem *encodedParams, ECParams *params);
extern SECStatus EC_DecodeParams(const SECItem *encodedParams,
                                 ECParams **ecparams);
extern SECStatus EC_CopyParams(PLArenaPool *arena, ECParams *dstParams,
                               const ECParams *srcParams);

/*
 * use the internal table to get the size in bytes of a single EC point
 */
extern int EC_GetPointSize(const ECParams *params);

SEC_END_PROTOS

#endif /* _BLAPI_H_ */