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Provide the other primes from RFC 3526.
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Node just calls every function they can find. I've added the other ones
from RFC 3526 (although some of these are *quite* large) but, for now,
skipped the 768-bit and 1024-bit ones. Those are too small. See
nodejs/node#44539.

I've also reordered so DH_get_rfc7919_2048 is first. In so far as we
want to recommend DH at all, that's probably the one to list first.

Change-Id: If101b32114cc631f80ac6696733c440e222d769a
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/54305
Reviewed-by: Bob Beck <[email protected]>
Auto-Submit: David Benjamin <[email protected]>
Commit-Queue: Bob Beck <[email protected]>
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@davidben
davidben authored and Boringssl LUCI CQ committed Sep 6, 2022
1 parent 8462a36 commit 1106836
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245 changes: 230 additions & 15 deletions crypto/dh_extra/params.c
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Original file line number Diff line number Diff line change
Expand Up @@ -59,8 +59,26 @@
#include "../fipsmodule/bn/internal.h"


static BIGNUM *get_params(BIGNUM *ret, const BN_ULONG *words, size_t num_words) {
BIGNUM *alloc = NULL;
if (ret == NULL) {
alloc = BN_new();
if (alloc == NULL) {
return NULL;
}
ret = alloc;
}

if (!bn_set_words(ret, words, num_words)) {
BN_free(alloc);
return NULL;
}

return ret;
}

BIGNUM *BN_get_rfc3526_prime_1536(BIGNUM *ret) {
static const BN_ULONG kPrime1536Data[] = {
static const BN_ULONG kWords[] = {
TOBN(0xffffffff, 0xffffffff), TOBN(0xf1746c08, 0xca237327),
TOBN(0x670c354e, 0x4abc9804), TOBN(0x9ed52907, 0x7096966d),
TOBN(0x1c62f356, 0x208552bb), TOBN(0x83655d23, 0xdca3ad96),
Expand All @@ -74,24 +92,221 @@ BIGNUM *BN_get_rfc3526_prime_1536(BIGNUM *ret) {
TOBN(0x29024e08, 0x8a67cc74), TOBN(0xc4c6628b, 0x80dc1cd1),
TOBN(0xc90fdaa2, 0x2168c234), TOBN(0xffffffff, 0xffffffff),
};
return get_params(ret, kWords, OPENSSL_ARRAY_SIZE(kWords));
}

static const BIGNUM kPrime1536BN = STATIC_BIGNUM(kPrime1536Data);
BIGNUM *BN_get_rfc3526_prime_2048(BIGNUM *ret) {
static const BN_ULONG kWords[] = {
TOBN(0xffffffff, 0xffffffff), TOBN(0x15728e5a, 0x8aacaa68),
TOBN(0x15d22618, 0x98fa0510), TOBN(0x3995497c, 0xea956ae5),
TOBN(0xde2bcbf6, 0x95581718), TOBN(0xb5c55df0, 0x6f4c52c9),
TOBN(0x9b2783a2, 0xec07a28f), TOBN(0xe39e772c, 0x180e8603),
TOBN(0x32905e46, 0x2e36ce3b), TOBN(0xf1746c08, 0xca18217c),
TOBN(0x670c354e, 0x4abc9804), TOBN(0x9ed52907, 0x7096966d),
TOBN(0x1c62f356, 0x208552bb), TOBN(0x83655d23, 0xdca3ad96),
TOBN(0x69163fa8, 0xfd24cf5f), TOBN(0x98da4836, 0x1c55d39a),
TOBN(0xc2007cb8, 0xa163bf05), TOBN(0x49286651, 0xece45b3d),
TOBN(0xae9f2411, 0x7c4b1fe6), TOBN(0xee386bfb, 0x5a899fa5),
TOBN(0x0bff5cb6, 0xf406b7ed), TOBN(0xf44c42e9, 0xa637ed6b),
TOBN(0xe485b576, 0x625e7ec6), TOBN(0x4fe1356d, 0x6d51c245),
TOBN(0x302b0a6d, 0xf25f1437), TOBN(0xef9519b3, 0xcd3a431b),
TOBN(0x514a0879, 0x8e3404dd), TOBN(0x020bbea6, 0x3b139b22),
TOBN(0x29024e08, 0x8a67cc74), TOBN(0xc4c6628b, 0x80dc1cd1),
TOBN(0xc90fdaa2, 0x2168c234), TOBN(0xffffffff, 0xffffffff),
};
return get_params(ret, kWords, OPENSSL_ARRAY_SIZE(kWords));
}

BIGNUM *alloc = NULL;
if (ret == NULL) {
alloc = BN_new();
if (alloc == NULL) {
return NULL;
}
ret = alloc;
}
BIGNUM *BN_get_rfc3526_prime_3072(BIGNUM *ret) {
static const BN_ULONG kWords[] = {
TOBN(0xffffffff, 0xffffffff), TOBN(0x4b82d120, 0xa93ad2ca),
TOBN(0x43db5bfc, 0xe0fd108e), TOBN(0x08e24fa0, 0x74e5ab31),
TOBN(0x770988c0, 0xbad946e2), TOBN(0xbbe11757, 0x7a615d6c),
TOBN(0x521f2b18, 0x177b200c), TOBN(0xd8760273, 0x3ec86a64),
TOBN(0xf12ffa06, 0xd98a0864), TOBN(0xcee3d226, 0x1ad2ee6b),
TOBN(0x1e8c94e0, 0x4a25619d), TOBN(0xabf5ae8c, 0xdb0933d7),
TOBN(0xb3970f85, 0xa6e1e4c7), TOBN(0x8aea7157, 0x5d060c7d),
TOBN(0xecfb8504, 0x58dbef0a), TOBN(0xa85521ab, 0xdf1cba64),
TOBN(0xad33170d, 0x04507a33), TOBN(0x15728e5a, 0x8aaac42d),
TOBN(0x15d22618, 0x98fa0510), TOBN(0x3995497c, 0xea956ae5),
TOBN(0xde2bcbf6, 0x95581718), TOBN(0xb5c55df0, 0x6f4c52c9),
TOBN(0x9b2783a2, 0xec07a28f), TOBN(0xe39e772c, 0x180e8603),
TOBN(0x32905e46, 0x2e36ce3b), TOBN(0xf1746c08, 0xca18217c),
TOBN(0x670c354e, 0x4abc9804), TOBN(0x9ed52907, 0x7096966d),
TOBN(0x1c62f356, 0x208552bb), TOBN(0x83655d23, 0xdca3ad96),
TOBN(0x69163fa8, 0xfd24cf5f), TOBN(0x98da4836, 0x1c55d39a),
TOBN(0xc2007cb8, 0xa163bf05), TOBN(0x49286651, 0xece45b3d),
TOBN(0xae9f2411, 0x7c4b1fe6), TOBN(0xee386bfb, 0x5a899fa5),
TOBN(0x0bff5cb6, 0xf406b7ed), TOBN(0xf44c42e9, 0xa637ed6b),
TOBN(0xe485b576, 0x625e7ec6), TOBN(0x4fe1356d, 0x6d51c245),
TOBN(0x302b0a6d, 0xf25f1437), TOBN(0xef9519b3, 0xcd3a431b),
TOBN(0x514a0879, 0x8e3404dd), TOBN(0x020bbea6, 0x3b139b22),
TOBN(0x29024e08, 0x8a67cc74), TOBN(0xc4c6628b, 0x80dc1cd1),
TOBN(0xc90fdaa2, 0x2168c234), TOBN(0xffffffff, 0xffffffff),
};
return get_params(ret, kWords, OPENSSL_ARRAY_SIZE(kWords));
}

if (!BN_copy(ret, &kPrime1536BN)) {
BN_free(alloc);
return NULL;
}
BIGNUM *BN_get_rfc3526_prime_4096(BIGNUM *ret) {
static const BN_ULONG kWords[] = {
TOBN(0xffffffff, 0xffffffff), TOBN(0x4df435c9, 0x34063199),
TOBN(0x86ffb7dc, 0x90a6c08f), TOBN(0x93b4ea98, 0x8d8fddc1),
TOBN(0xd0069127, 0xd5b05aa9), TOBN(0xb81bdd76, 0x2170481c),
TOBN(0x1f612970, 0xcee2d7af), TOBN(0x233ba186, 0x515be7ed),
TOBN(0x99b2964f, 0xa090c3a2), TOBN(0x287c5947, 0x4e6bc05d),
TOBN(0x2e8efc14, 0x1fbecaa6), TOBN(0xdbbbc2db, 0x04de8ef9),
TOBN(0x2583e9ca, 0x2ad44ce8), TOBN(0x1a946834, 0xb6150bda),
TOBN(0x99c32718, 0x6af4e23c), TOBN(0x88719a10, 0xbdba5b26),
TOBN(0x1a723c12, 0xa787e6d7), TOBN(0x4b82d120, 0xa9210801),
TOBN(0x43db5bfc, 0xe0fd108e), TOBN(0x08e24fa0, 0x74e5ab31),
TOBN(0x770988c0, 0xbad946e2), TOBN(0xbbe11757, 0x7a615d6c),
TOBN(0x521f2b18, 0x177b200c), TOBN(0xd8760273, 0x3ec86a64),
TOBN(0xf12ffa06, 0xd98a0864), TOBN(0xcee3d226, 0x1ad2ee6b),
TOBN(0x1e8c94e0, 0x4a25619d), TOBN(0xabf5ae8c, 0xdb0933d7),
TOBN(0xb3970f85, 0xa6e1e4c7), TOBN(0x8aea7157, 0x5d060c7d),
TOBN(0xecfb8504, 0x58dbef0a), TOBN(0xa85521ab, 0xdf1cba64),
TOBN(0xad33170d, 0x04507a33), TOBN(0x15728e5a, 0x8aaac42d),
TOBN(0x15d22618, 0x98fa0510), TOBN(0x3995497c, 0xea956ae5),
TOBN(0xde2bcbf6, 0x95581718), TOBN(0xb5c55df0, 0x6f4c52c9),
TOBN(0x9b2783a2, 0xec07a28f), TOBN(0xe39e772c, 0x180e8603),
TOBN(0x32905e46, 0x2e36ce3b), TOBN(0xf1746c08, 0xca18217c),
TOBN(0x670c354e, 0x4abc9804), TOBN(0x9ed52907, 0x7096966d),
TOBN(0x1c62f356, 0x208552bb), TOBN(0x83655d23, 0xdca3ad96),
TOBN(0x69163fa8, 0xfd24cf5f), TOBN(0x98da4836, 0x1c55d39a),
TOBN(0xc2007cb8, 0xa163bf05), TOBN(0x49286651, 0xece45b3d),
TOBN(0xae9f2411, 0x7c4b1fe6), TOBN(0xee386bfb, 0x5a899fa5),
TOBN(0x0bff5cb6, 0xf406b7ed), TOBN(0xf44c42e9, 0xa637ed6b),
TOBN(0xe485b576, 0x625e7ec6), TOBN(0x4fe1356d, 0x6d51c245),
TOBN(0x302b0a6d, 0xf25f1437), TOBN(0xef9519b3, 0xcd3a431b),
TOBN(0x514a0879, 0x8e3404dd), TOBN(0x020bbea6, 0x3b139b22),
TOBN(0x29024e08, 0x8a67cc74), TOBN(0xc4c6628b, 0x80dc1cd1),
TOBN(0xc90fdaa2, 0x2168c234), TOBN(0xffffffff, 0xffffffff),
};
return get_params(ret, kWords, OPENSSL_ARRAY_SIZE(kWords));
}

return ret;
BIGNUM *BN_get_rfc3526_prime_6144(BIGNUM *ret) {
static const BN_ULONG kWords[] = {
TOBN(0xffffffff, 0xffffffff), TOBN(0xe694f91e, 0x6dcc4024),
TOBN(0x12bf2d5b, 0x0b7474d6), TOBN(0x043e8f66, 0x3f4860ee),
TOBN(0x387fe8d7, 0x6e3c0468), TOBN(0xda56c9ec, 0x2ef29632),
TOBN(0xeb19ccb1, 0xa313d55c), TOBN(0xf550aa3d, 0x8a1fbff0),
TOBN(0x06a1d58b, 0xb7c5da76), TOBN(0xa79715ee, 0xf29be328),
TOBN(0x14cc5ed2, 0x0f8037e0), TOBN(0xcc8f6d7e, 0xbf48e1d8),
TOBN(0x4bd407b2, 0x2b4154aa), TOBN(0x0f1d45b7, 0xff585ac5),
TOBN(0x23a97a7e, 0x36cc88be), TOBN(0x59e7c97f, 0xbec7e8f3),
TOBN(0xb5a84031, 0x900b1c9e), TOBN(0xd55e702f, 0x46980c82),
TOBN(0xf482d7ce, 0x6e74fef6), TOBN(0xf032ea15, 0xd1721d03),
TOBN(0x5983ca01, 0xc64b92ec), TOBN(0x6fb8f401, 0x378cd2bf),
TOBN(0x33205151, 0x2bd7af42), TOBN(0xdb7f1447, 0xe6cc254b),
TOBN(0x44ce6cba, 0xced4bb1b), TOBN(0xda3edbeb, 0xcf9b14ed),
TOBN(0x179727b0, 0x865a8918), TOBN(0xb06a53ed, 0x9027d831),
TOBN(0xe5db382f, 0x413001ae), TOBN(0xf8ff9406, 0xad9e530e),
TOBN(0xc9751e76, 0x3dba37bd), TOBN(0xc1d4dcb2, 0x602646de),
TOBN(0x36c3fab4, 0xd27c7026), TOBN(0x4df435c9, 0x34028492),
TOBN(0x86ffb7dc, 0x90a6c08f), TOBN(0x93b4ea98, 0x8d8fddc1),
TOBN(0xd0069127, 0xd5b05aa9), TOBN(0xb81bdd76, 0x2170481c),
TOBN(0x1f612970, 0xcee2d7af), TOBN(0x233ba186, 0x515be7ed),
TOBN(0x99b2964f, 0xa090c3a2), TOBN(0x287c5947, 0x4e6bc05d),
TOBN(0x2e8efc14, 0x1fbecaa6), TOBN(0xdbbbc2db, 0x04de8ef9),
TOBN(0x2583e9ca, 0x2ad44ce8), TOBN(0x1a946834, 0xb6150bda),
TOBN(0x99c32718, 0x6af4e23c), TOBN(0x88719a10, 0xbdba5b26),
TOBN(0x1a723c12, 0xa787e6d7), TOBN(0x4b82d120, 0xa9210801),
TOBN(0x43db5bfc, 0xe0fd108e), TOBN(0x08e24fa0, 0x74e5ab31),
TOBN(0x770988c0, 0xbad946e2), TOBN(0xbbe11757, 0x7a615d6c),
TOBN(0x521f2b18, 0x177b200c), TOBN(0xd8760273, 0x3ec86a64),
TOBN(0xf12ffa06, 0xd98a0864), TOBN(0xcee3d226, 0x1ad2ee6b),
TOBN(0x1e8c94e0, 0x4a25619d), TOBN(0xabf5ae8c, 0xdb0933d7),
TOBN(0xb3970f85, 0xa6e1e4c7), TOBN(0x8aea7157, 0x5d060c7d),
TOBN(0xecfb8504, 0x58dbef0a), TOBN(0xa85521ab, 0xdf1cba64),
TOBN(0xad33170d, 0x04507a33), TOBN(0x15728e5a, 0x8aaac42d),
TOBN(0x15d22618, 0x98fa0510), TOBN(0x3995497c, 0xea956ae5),
TOBN(0xde2bcbf6, 0x95581718), TOBN(0xb5c55df0, 0x6f4c52c9),
TOBN(0x9b2783a2, 0xec07a28f), TOBN(0xe39e772c, 0x180e8603),
TOBN(0x32905e46, 0x2e36ce3b), TOBN(0xf1746c08, 0xca18217c),
TOBN(0x670c354e, 0x4abc9804), TOBN(0x9ed52907, 0x7096966d),
TOBN(0x1c62f356, 0x208552bb), TOBN(0x83655d23, 0xdca3ad96),
TOBN(0x69163fa8, 0xfd24cf5f), TOBN(0x98da4836, 0x1c55d39a),
TOBN(0xc2007cb8, 0xa163bf05), TOBN(0x49286651, 0xece45b3d),
TOBN(0xae9f2411, 0x7c4b1fe6), TOBN(0xee386bfb, 0x5a899fa5),
TOBN(0x0bff5cb6, 0xf406b7ed), TOBN(0xf44c42e9, 0xa637ed6b),
TOBN(0xe485b576, 0x625e7ec6), TOBN(0x4fe1356d, 0x6d51c245),
TOBN(0x302b0a6d, 0xf25f1437), TOBN(0xef9519b3, 0xcd3a431b),
TOBN(0x514a0879, 0x8e3404dd), TOBN(0x020bbea6, 0x3b139b22),
TOBN(0x29024e08, 0x8a67cc74), TOBN(0xc4c6628b, 0x80dc1cd1),
TOBN(0xc90fdaa2, 0x2168c234), TOBN(0xffffffff, 0xffffffff),
};
return get_params(ret, kWords, OPENSSL_ARRAY_SIZE(kWords));
}

BIGNUM *BN_get_rfc3526_prime_8192(BIGNUM *ret) {
static const BN_ULONG kWords[] = {
TOBN(0xffffffff, 0xffffffff), TOBN(0x60c980dd, 0x98edd3df),
TOBN(0xc81f56e8, 0x80b96e71), TOBN(0x9e3050e2, 0x765694df),
TOBN(0x9558e447, 0x5677e9aa), TOBN(0xc9190da6, 0xfc026e47),
TOBN(0x889a002e, 0xd5ee382b), TOBN(0x4009438b, 0x481c6cd7),
TOBN(0x359046f4, 0xeb879f92), TOBN(0xfaf36bc3, 0x1ecfa268),
TOBN(0xb1d510bd, 0x7ee74d73), TOBN(0xf9ab4819, 0x5ded7ea1),
TOBN(0x64f31cc5, 0x0846851d), TOBN(0x4597e899, 0xa0255dc1),
TOBN(0xdf310ee0, 0x74ab6a36), TOBN(0x6d2a13f8, 0x3f44f82d),
TOBN(0x062b3cf5, 0xb3a278a6), TOBN(0x79683303, 0xed5bdd3a),
TOBN(0xfa9d4b7f, 0xa2c087e8), TOBN(0x4bcbc886, 0x2f8385dd),
TOBN(0x3473fc64, 0x6cea306b), TOBN(0x13eb57a8, 0x1a23f0c7),
TOBN(0x22222e04, 0xa4037c07), TOBN(0xe3fdb8be, 0xfc848ad9),
TOBN(0x238f16cb, 0xe39d652d), TOBN(0x3423b474, 0x2bf1c978),
TOBN(0x3aab639c, 0x5ae4f568), TOBN(0x2576f693, 0x6ba42466),
TOBN(0x741fa7bf, 0x8afc47ed), TOBN(0x3bc832b6, 0x8d9dd300),
TOBN(0xd8bec4d0, 0x73b931ba), TOBN(0x38777cb6, 0xa932df8c),
TOBN(0x74a3926f, 0x12fee5e4), TOBN(0xe694f91e, 0x6dbe1159),
TOBN(0x12bf2d5b, 0x0b7474d6), TOBN(0x043e8f66, 0x3f4860ee),
TOBN(0x387fe8d7, 0x6e3c0468), TOBN(0xda56c9ec, 0x2ef29632),
TOBN(0xeb19ccb1, 0xa313d55c), TOBN(0xf550aa3d, 0x8a1fbff0),
TOBN(0x06a1d58b, 0xb7c5da76), TOBN(0xa79715ee, 0xf29be328),
TOBN(0x14cc5ed2, 0x0f8037e0), TOBN(0xcc8f6d7e, 0xbf48e1d8),
TOBN(0x4bd407b2, 0x2b4154aa), TOBN(0x0f1d45b7, 0xff585ac5),
TOBN(0x23a97a7e, 0x36cc88be), TOBN(0x59e7c97f, 0xbec7e8f3),
TOBN(0xb5a84031, 0x900b1c9e), TOBN(0xd55e702f, 0x46980c82),
TOBN(0xf482d7ce, 0x6e74fef6), TOBN(0xf032ea15, 0xd1721d03),
TOBN(0x5983ca01, 0xc64b92ec), TOBN(0x6fb8f401, 0x378cd2bf),
TOBN(0x33205151, 0x2bd7af42), TOBN(0xdb7f1447, 0xe6cc254b),
TOBN(0x44ce6cba, 0xced4bb1b), TOBN(0xda3edbeb, 0xcf9b14ed),
TOBN(0x179727b0, 0x865a8918), TOBN(0xb06a53ed, 0x9027d831),
TOBN(0xe5db382f, 0x413001ae), TOBN(0xf8ff9406, 0xad9e530e),
TOBN(0xc9751e76, 0x3dba37bd), TOBN(0xc1d4dcb2, 0x602646de),
TOBN(0x36c3fab4, 0xd27c7026), TOBN(0x4df435c9, 0x34028492),
TOBN(0x86ffb7dc, 0x90a6c08f), TOBN(0x93b4ea98, 0x8d8fddc1),
TOBN(0xd0069127, 0xd5b05aa9), TOBN(0xb81bdd76, 0x2170481c),
TOBN(0x1f612970, 0xcee2d7af), TOBN(0x233ba186, 0x515be7ed),
TOBN(0x99b2964f, 0xa090c3a2), TOBN(0x287c5947, 0x4e6bc05d),
TOBN(0x2e8efc14, 0x1fbecaa6), TOBN(0xdbbbc2db, 0x04de8ef9),
TOBN(0x2583e9ca, 0x2ad44ce8), TOBN(0x1a946834, 0xb6150bda),
TOBN(0x99c32718, 0x6af4e23c), TOBN(0x88719a10, 0xbdba5b26),
TOBN(0x1a723c12, 0xa787e6d7), TOBN(0x4b82d120, 0xa9210801),
TOBN(0x43db5bfc, 0xe0fd108e), TOBN(0x08e24fa0, 0x74e5ab31),
TOBN(0x770988c0, 0xbad946e2), TOBN(0xbbe11757, 0x7a615d6c),
TOBN(0x521f2b18, 0x177b200c), TOBN(0xd8760273, 0x3ec86a64),
TOBN(0xf12ffa06, 0xd98a0864), TOBN(0xcee3d226, 0x1ad2ee6b),
TOBN(0x1e8c94e0, 0x4a25619d), TOBN(0xabf5ae8c, 0xdb0933d7),
TOBN(0xb3970f85, 0xa6e1e4c7), TOBN(0x8aea7157, 0x5d060c7d),
TOBN(0xecfb8504, 0x58dbef0a), TOBN(0xa85521ab, 0xdf1cba64),
TOBN(0xad33170d, 0x04507a33), TOBN(0x15728e5a, 0x8aaac42d),
TOBN(0x15d22618, 0x98fa0510), TOBN(0x3995497c, 0xea956ae5),
TOBN(0xde2bcbf6, 0x95581718), TOBN(0xb5c55df0, 0x6f4c52c9),
TOBN(0x9b2783a2, 0xec07a28f), TOBN(0xe39e772c, 0x180e8603),
TOBN(0x32905e46, 0x2e36ce3b), TOBN(0xf1746c08, 0xca18217c),
TOBN(0x670c354e, 0x4abc9804), TOBN(0x9ed52907, 0x7096966d),
TOBN(0x1c62f356, 0x208552bb), TOBN(0x83655d23, 0xdca3ad96),
TOBN(0x69163fa8, 0xfd24cf5f), TOBN(0x98da4836, 0x1c55d39a),
TOBN(0xc2007cb8, 0xa163bf05), TOBN(0x49286651, 0xece45b3d),
TOBN(0xae9f2411, 0x7c4b1fe6), TOBN(0xee386bfb, 0x5a899fa5),
TOBN(0x0bff5cb6, 0xf406b7ed), TOBN(0xf44c42e9, 0xa637ed6b),
TOBN(0xe485b576, 0x625e7ec6), TOBN(0x4fe1356d, 0x6d51c245),
TOBN(0x302b0a6d, 0xf25f1437), TOBN(0xef9519b3, 0xcd3a431b),
TOBN(0x514a0879, 0x8e3404dd), TOBN(0x020bbea6, 0x3b139b22),
TOBN(0x29024e08, 0x8a67cc74), TOBN(0xc4c6628b, 0x80dc1cd1),
TOBN(0xc90fdaa2, 0x2168c234), TOBN(0xffffffff, 0xffffffff),
};
return get_params(ret, kWords, OPENSSL_ARRAY_SIZE(kWords));
}

int DH_generate_parameters_ex(DH *dh, int prime_bits, int generator,
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33 changes: 29 additions & 4 deletions include/openssl/dh.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -137,15 +137,40 @@ OPENSSL_EXPORT int DH_set_length(DH *dh, unsigned priv_length);

// Standard parameters.

// DH_get_rfc7919_2048 returns the group `ffdhe2048` from
// https://tools.ietf.org/html/rfc7919#appendix-A.1. It returns NULL if out
// of memory.
OPENSSL_EXPORT DH *DH_get_rfc7919_2048(void);

// BN_get_rfc3526_prime_1536 sets |*ret| to the 1536-bit MODP group from RFC
// 3526 and returns |ret|. If |ret| is NULL then a fresh |BIGNUM| is allocated
// and returned. It returns NULL on allocation failure.
OPENSSL_EXPORT BIGNUM *BN_get_rfc3526_prime_1536(BIGNUM *ret);

// DH_get_rfc7919_2048 returns the group `ffdhe2048` from
// https://tools.ietf.org/html/rfc7919#appendix-A.1. It returns NULL if out
// of memory.
OPENSSL_EXPORT DH *DH_get_rfc7919_2048(void);
// BN_get_rfc3526_prime_2048 sets |*ret| to the 2048-bit MODP group from RFC
// 3526 and returns |ret|. If |ret| is NULL then a fresh |BIGNUM| is allocated
// and returned. It returns NULL on allocation failure.
OPENSSL_EXPORT BIGNUM *BN_get_rfc3526_prime_2048(BIGNUM *ret);

// BN_get_rfc3526_prime_3072 sets |*ret| to the 3072-bit MODP group from RFC
// 3526 and returns |ret|. If |ret| is NULL then a fresh |BIGNUM| is allocated
// and returned. It returns NULL on allocation failure.
OPENSSL_EXPORT BIGNUM *BN_get_rfc3526_prime_3072(BIGNUM *ret);

// BN_get_rfc3526_prime_4096 sets |*ret| to the 4096-bit MODP group from RFC
// 3526 and returns |ret|. If |ret| is NULL then a fresh |BIGNUM| is allocated
// and returned. It returns NULL on allocation failure.
OPENSSL_EXPORT BIGNUM *BN_get_rfc3526_prime_4096(BIGNUM *ret);

// BN_get_rfc3526_prime_6144 sets |*ret| to the 6144-bit MODP group from RFC
// 3526 and returns |ret|. If |ret| is NULL then a fresh |BIGNUM| is allocated
// and returned. It returns NULL on allocation failure.
OPENSSL_EXPORT BIGNUM *BN_get_rfc3526_prime_6144(BIGNUM *ret);

// BN_get_rfc3526_prime_8192 sets |*ret| to the 8192-bit MODP group from RFC
// 3526 and returns |ret|. If |ret| is NULL then a fresh |BIGNUM| is allocated
// and returned. It returns NULL on allocation failure.
OPENSSL_EXPORT BIGNUM *BN_get_rfc3526_prime_8192(BIGNUM *ret);


// Parameter generation.
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