1e71b7053SJung-uk Kim=pod 2e71b7053SJung-uk Kim 3e71b7053SJung-uk Kim=head1 NAME 4e71b7053SJung-uk Kim 5e71b7053SJung-uk KimDH_get_1024_160, 6e71b7053SJung-uk KimDH_get_2048_224, 7e71b7053SJung-uk KimDH_get_2048_256, 8e71b7053SJung-uk KimBN_get0_nist_prime_192, 9e71b7053SJung-uk KimBN_get0_nist_prime_224, 10e71b7053SJung-uk KimBN_get0_nist_prime_256, 11e71b7053SJung-uk KimBN_get0_nist_prime_384, 12e71b7053SJung-uk KimBN_get0_nist_prime_521, 13e71b7053SJung-uk KimBN_get_rfc2409_prime_768, 14e71b7053SJung-uk KimBN_get_rfc2409_prime_1024, 15e71b7053SJung-uk KimBN_get_rfc3526_prime_1536, 16e71b7053SJung-uk KimBN_get_rfc3526_prime_2048, 17e71b7053SJung-uk KimBN_get_rfc3526_prime_3072, 18e71b7053SJung-uk KimBN_get_rfc3526_prime_4096, 19e71b7053SJung-uk KimBN_get_rfc3526_prime_6144, 20e71b7053SJung-uk KimBN_get_rfc3526_prime_8192 21e71b7053SJung-uk Kim- Create standardized public primes or DH pairs 22e71b7053SJung-uk Kim 23e71b7053SJung-uk Kim=head1 SYNOPSIS 24e71b7053SJung-uk Kim 25e71b7053SJung-uk Kim #include <openssl/dh.h> 26e71b7053SJung-uk Kim 27*b077aed3SPierre Pronchery const BIGNUM *BN_get0_nist_prime_192(void); 28*b077aed3SPierre Pronchery const BIGNUM *BN_get0_nist_prime_224(void); 29*b077aed3SPierre Pronchery const BIGNUM *BN_get0_nist_prime_256(void); 30*b077aed3SPierre Pronchery const BIGNUM *BN_get0_nist_prime_384(void); 31*b077aed3SPierre Pronchery const BIGNUM *BN_get0_nist_prime_521(void); 32e71b7053SJung-uk Kim 33*b077aed3SPierre Pronchery BIGNUM *BN_get_rfc2409_prime_768(BIGNUM *bn); 34*b077aed3SPierre Pronchery BIGNUM *BN_get_rfc2409_prime_1024(BIGNUM *bn); 35*b077aed3SPierre Pronchery BIGNUM *BN_get_rfc3526_prime_1536(BIGNUM *bn); 36*b077aed3SPierre Pronchery BIGNUM *BN_get_rfc3526_prime_2048(BIGNUM *bn); 37*b077aed3SPierre Pronchery BIGNUM *BN_get_rfc3526_prime_3072(BIGNUM *bn); 38*b077aed3SPierre Pronchery BIGNUM *BN_get_rfc3526_prime_4096(BIGNUM *bn); 39*b077aed3SPierre Pronchery BIGNUM *BN_get_rfc3526_prime_6144(BIGNUM *bn); 40*b077aed3SPierre Pronchery BIGNUM *BN_get_rfc3526_prime_8192(BIGNUM *bn); 41*b077aed3SPierre Pronchery 42*b077aed3SPierre ProncheryThe following functions have been deprecated since OpenSSL 3.0, and can be 43*b077aed3SPierre Proncheryhidden entirely by defining B<OPENSSL_API_COMPAT> with a suitable version value, 44*b077aed3SPierre Proncherysee L<openssl_user_macros(7)>: 45*b077aed3SPierre Pronchery 46*b077aed3SPierre Pronchery #include <openssl/dh.h> 47*b077aed3SPierre Pronchery 48*b077aed3SPierre Pronchery DH *DH_get_1024_160(void); 49*b077aed3SPierre Pronchery DH *DH_get_2048_224(void); 50*b077aed3SPierre Pronchery DH *DH_get_2048_256(void); 51e71b7053SJung-uk Kim 52e71b7053SJung-uk Kim=head1 DESCRIPTION 53e71b7053SJung-uk Kim 54e71b7053SJung-uk KimDH_get_1024_160(), DH_get_2048_224(), and DH_get_2048_256() each return 55*b077aed3SPierre Proncherya DH object for the IETF RFC 5114 value. These functions are deprecated. 56*b077aed3SPierre ProncheryApplications should instead use EVP_PKEY_CTX_set_dh_rfc5114() and 57*b077aed3SPierre ProncheryEVP_PKEY_CTX_set_dhx_rfc5114() as described in L<EVP_PKEY_CTX_ctrl(3)> or 58*b077aed3SPierre Proncheryby setting the B<OSSL_PKEY_PARAM_GROUP_NAME> as specified in 59*b077aed3SPierre ProncheryL<EVP_PKEY-DH(7)/DH parameters>) to one of "dh_1024_160", "dh_2048_224" or 60*b077aed3SPierre Pronchery"dh_2048_256". 61e71b7053SJung-uk Kim 62e71b7053SJung-uk KimBN_get0_nist_prime_192(), BN_get0_nist_prime_224(), BN_get0_nist_prime_256(), 63e71b7053SJung-uk KimBN_get0_nist_prime_384(), and BN_get0_nist_prime_521() functions return 64e71b7053SJung-uk Kima BIGNUM for the specific NIST prime curve (e.g., P-256). 65e71b7053SJung-uk Kim 66e71b7053SJung-uk KimBN_get_rfc2409_prime_768(), BN_get_rfc2409_prime_1024(), 67e71b7053SJung-uk KimBN_get_rfc3526_prime_1536(), BN_get_rfc3526_prime_2048(), 68e71b7053SJung-uk KimBN_get_rfc3526_prime_3072(), BN_get_rfc3526_prime_4096(), 69e71b7053SJung-uk KimBN_get_rfc3526_prime_6144(), and BN_get_rfc3526_prime_8192() functions 70e71b7053SJung-uk Kimreturn a BIGNUM for the specified size from IETF RFC 2409. If B<bn> 71e71b7053SJung-uk Kimis not NULL, the BIGNUM will be set into that location as well. 72e71b7053SJung-uk Kim 73e71b7053SJung-uk Kim=head1 RETURN VALUES 74e71b7053SJung-uk Kim 75e71b7053SJung-uk KimDefined above. 76e71b7053SJung-uk Kim 77*b077aed3SPierre Pronchery=head1 HISTORY 78*b077aed3SPierre Pronchery 79*b077aed3SPierre ProncheryThe functions DH_get_1024_160(), DH_get_2048_224() and DH_get_2048_256() were 80*b077aed3SPierre Proncherydeprecated in OpenSSL 3.0. 81*b077aed3SPierre Pronchery 82e71b7053SJung-uk Kim=head1 COPYRIGHT 83e71b7053SJung-uk Kim 84*b077aed3SPierre ProncheryCopyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved. 85e71b7053SJung-uk Kim 86*b077aed3SPierre ProncheryLicensed under the Apache License 2.0 (the "License"). You may not use 87e71b7053SJung-uk Kimthis file except in compliance with the License. You can obtain a copy 88e71b7053SJung-uk Kimin the file LICENSE in the source distribution or at 89e71b7053SJung-uk KimL<https://www.openssl.org/source/license.html>. 90e71b7053SJung-uk Kim 91e71b7053SJung-uk Kim=cut 92