[root@centos8 data]$openssl dsaparam -out dsa.param 1024
Generating DSA parameters, 1024 bit long prime
This could take some time
....................++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*
....................+......................+.+...........+....+............+..........+...+...+.+........................+..........+.......+.+.+.............+.......+....+......+.....+....+.+....+..................+.+.+....+...+.......+..........................................+........+..................+.+....+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*
[root@centos8 data]$cat dsa.param
-----BEGIN DSA PARAMETERS-----
MIIBHgKBgQCXWtR0zjsNLT010pR/Oelvbk1N+vSv2k3bUahkWMuZ6Z5BYQP7+QvK
6D1/+RWD/zHIicOLGYNkOFnX3PBPlx218KqFX1wNkmYz0vqPu1+RYeIVqaVFDEB2
dibqiFhKDhKipR7G3tCwqC94AkTJtduQNnBiM/YRz86nE6nqYVTfrwIVAK+NYZGg
cv5MtoJVdu/rr2wEypp1AoGAZgDa/zIKudSI99nlIUJOODkS064l+rT0JdEIbdcv
TEKeCmWhRMzWdU8y56AWsiTCmChuXHlMsgt6VKcgBMO7FgGTPeIiDegGZvZmXG8B
bL6/gejSrMQmEG1CrJZ6vCqkDRkaKvVSX6ysOMbPk9GcjqAw8KwdkUi4Bxv2wyNL
JK8=
-----END DSA PARAMETERS-----
[root@centos8 data]$openssl dsaparam -in dsa.param --noout -C
static DSA *get_dsa1024(void)
{
static unsigned char dsap_1024[] = {
0x97, 0x5A, 0xD4, 0x74, 0xCE, 0x3B, 0x0D, 0x2D, 0x3D, 0x35,
0xD2, 0x94, 0x7F, 0x39, 0xE9, 0x6F, 0x6E, 0x4D, 0x4D, 0xFA,
0xF4, 0xAF, 0xDA, 0x4D, 0xDB, 0x51, 0xA8, 0x64, 0x58, 0xCB,
0x99, 0xE9, 0x9E, 0x41, 0x61, 0x03, 0xFB, 0xF9, 0x0B, 0xCA,
0xE8, 0x3D, 0x7F, 0xF9, 0x15, 0x83, 0xFF, 0x31, 0xC8, 0x89,
0xC3, 0x8B, 0x19, 0x83, 0x64, 0x38, 0x59, 0xD7, 0xDC, 0xF0,
0x4F, 0x97, 0x1D, 0xB5, 0xF0, 0xAA, 0x85, 0x5F, 0x5C, 0x0D,
0x92, 0x66, 0x33, 0xD2, 0xFA, 0x8F, 0xBB, 0x5F, 0x91, 0x61,
0xE2, 0x15, 0xA9, 0xA5, 0x45, 0x0C, 0x40, 0x76, 0x76, 0x26,
0xEA, 0x88, 0x58, 0x4A, 0x0E, 0x12, 0xA2, 0xA5, 0x1E, 0xC6,
0xDE, 0xD0, 0xB0, 0xA8, 0x2F, 0x78, 0x02, 0x44, 0xC9, 0xB5,
0xDB, 0x90, 0x36, 0x70, 0x62, 0x33, 0xF6, 0x11, 0xCF, 0xCE,
0xA7, 0x13, 0xA9, 0xEA, 0x61, 0x54, 0xDF, 0xAF
};
static unsigned char dsaq_1024[] = {
0xAF, 0x8D, 0x61, 0x91, 0xA0, 0x72, 0xFE, 0x4C, 0xB6, 0x82,
0x55, 0x76, 0xEF, 0xEB, 0xAF, 0x6C, 0x04, 0xCA, 0x9A, 0x75
};
static unsigned char dsag_1024[] = {
0x66, 0x00, 0xDA, 0xFF, 0x32, 0x0A, 0xB9, 0xD4, 0x88, 0xF7,
0xD9, 0xE5, 0x21, 0x42, 0x4E, 0x38, 0x39, 0x12, 0xD3, 0xAE,
0x25, 0xFA, 0xB4, 0xF4, 0x25, 0xD1, 0x08, 0x6D, 0xD7, 0x2F,
0x4C, 0x42, 0x9E, 0x0A, 0x65, 0xA1, 0x44, 0xCC, 0xD6, 0x75,
0x4F, 0x32, 0xE7, 0xA0, 0x16, 0xB2, 0x24, 0xC2, 0x98, 0x28,
0x6E, 0x5C, 0x79, 0x4C, 0xB2, 0x0B, 0x7A, 0x54, 0xA7, 0x20,
0x04, 0xC3, 0xBB, 0x16, 0x01, 0x93, 0x3D, 0xE2, 0x22, 0x0D,
0xE8, 0x06, 0x66, 0xF6, 0x66, 0x5C, 0x6F, 0x01, 0x6C, 0xBE,
0xBF, 0x81, 0xE8, 0xD2, 0xAC, 0xC4, 0x26, 0x10, 0x6D, 0x42,
0xAC, 0x96, 0x7A, 0xBC, 0x2A, 0xA4, 0x0D, 0x19, 0x1A, 0x2A,
0xF5, 0x52, 0x5F, 0xAC, 0xAC, 0x38, 0xC6, 0xCF, 0x93, 0xD1,
0x9C, 0x8E, 0xA0, 0x30, 0xF0, 0xAC, 0x1D, 0x91, 0x48, 0xB8,
0x07, 0x1B, 0xF6, 0xC3, 0x23, 0x4B, 0x24, 0xAF
};
DSA *dsa = DSA_new();
BIGNUM *p, *q, *g;
if (dsa == NULL)
return NULL;
if (!DSA_set0_pqg(dsa, p = BN_bin2bn(dsap_1024, sizeof(dsap_1024), NULL),
q = BN_bin2bn(dsaq_1024, sizeof(dsaq_1024), NULL),
g = BN_bin2bn(dsag_1024, sizeof(dsag_1024), NULL))) {
DSA_free(dsa);
BN_free(p);
BN_free(q);
BN_free(g);
return NULL;
}
return dsa;
}