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35 #include <openssl/dh.h>
38 unsigned char tr_2048_dhprime[2048/8] = {
39 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
40 0xC9, 0x0F, 0xDA, 0xA2, 0x21, 0x68, 0xC2, 0x34,
41 0xC4, 0xC6, 0x62, 0x8B, 0x80, 0xDC, 0x1C, 0xD1,
42 0x29, 0x02, 0x4E, 0x08, 0x8A, 0x67, 0xCC, 0x74,
43 0x02, 0x0B, 0xBE, 0xA6, 0x3B, 0x13, 0x9B, 0x22,
44 0x51, 0x4A, 0x08, 0x79, 0x8E, 0x34, 0x04, 0xDD,
45 0xEF, 0x95, 0x19, 0xB3, 0xCD, 0x3A, 0x43, 0x1B,
46 0x30, 0x2B, 0x0A, 0x6D, 0xF2, 0x5F, 0x14, 0x37,
47 0x4F, 0xE1, 0x35, 0x6D, 0x6D, 0x51, 0xC2, 0x45,
48 0xE4, 0x85, 0xB5, 0x76, 0x62, 0x5E, 0x7E, 0xC6,
49 0xF4, 0x4C, 0x42, 0xE9, 0xA6, 0x37, 0xED, 0x6B,
50 0x0B, 0xFF, 0x5C, 0xB6, 0xF4, 0x06, 0xB7, 0xED,
51 0xEE, 0x38, 0x6B, 0xFB, 0x5A, 0x89, 0x9F, 0xA5,
52 0xAE, 0x9F, 0x24, 0x11, 0x7C, 0x4B, 0x1F, 0xE6,
53 0x49, 0x28, 0x66, 0x51, 0xEC, 0xE4, 0x5B, 0x3D,
54 0xC2, 0x00, 0x7C, 0xB8, 0xA1, 0x63, 0xBF, 0x05,
55 0x98, 0xDA, 0x48, 0x36, 0x1C, 0x55, 0xD3, 0x9A,
56 0x69, 0x16, 0x3F, 0xA8, 0xFD, 0x24, 0xCF, 0x5F,
57 0x83, 0x65, 0x5D, 0x23, 0xDC, 0xA3, 0xAD, 0x96,
58 0x1C, 0x62, 0xF3, 0x56, 0x20, 0x85, 0x52, 0xBB,
59 0x9E, 0xD5, 0x29, 0x07, 0x70, 0x96, 0x96, 0x6D,
60 0x67, 0x0C, 0x35, 0x4E, 0x4A, 0xBC, 0x98, 0x04,
61 0xF1, 0x74, 0x6C, 0x08, 0xCA, 0x18, 0x21, 0x7C,
62 0x32, 0x90, 0x5E, 0x46, 0x2E, 0x36, 0xCE, 0x3B,
63 0xE3, 0x9E, 0x77, 0x2C, 0x18, 0x0E, 0x86, 0x03,
64 0x9B, 0x27, 0x83, 0xA2, 0xEC, 0x07, 0xA2, 0x8F,
65 0xB5, 0xC5, 0x5D, 0xF0, 0x6F, 0x4C, 0x52, 0xC9,
66 0xDE, 0x2B, 0xCB, 0xF6, 0x95, 0x58, 0x17, 0x18,
67 0x39, 0x95, 0x49, 0x7C, 0xEA, 0x95, 0x6A, 0xE5,
68 0x15, 0xD2, 0x26, 0x18, 0x98, 0xFA, 0x05, 0x10,
69 0x15, 0x72, 0x8E, 0x5A, 0x8A, 0xAC, 0xAA, 0x68,
70 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
73 DH *tr_create_dh_params(unsigned char *priv_key,
79 if (NULL == (dh = DH_new()))
82 if ((NULL == (dh->g = BN_new())) ||
83 (NULL == (dh->p = BN_new())) ||
84 (NULL == (dh->q = BN_new()))) {
88 BN_set_word(dh->g, 2);
89 dh->p = BN_bin2bn(tr_2048_dhprime, sizeof(tr_2048_dhprime), NULL);
90 BN_rshift1(dh->q, dh->p);
92 if ((priv_key) && (keylen > 0))
93 dh->priv_key = BN_bin2bn(priv_key, keylen, NULL);
95 DH_generate_key(dh); /* generates the public key */
97 DH_check(dh, &dh_err);
99 fprintf(stderr, "Warning: dh_check failed with %d", dh_err);
100 if (dh_err & DH_CHECK_P_NOT_PRIME)
101 fprintf(stderr, ": p value is not prime\n");
102 else if (dh_err & DH_CHECK_P_NOT_SAFE_PRIME)
103 fprintf(stderr, ": p value is not a safe prime\n");
104 else if (dh_err & DH_UNABLE_TO_CHECK_GENERATOR)
105 fprintf(stderr, ": unable to check the generator value\n");
106 else if (dh_err & DH_NOT_SUITABLE_GENERATOR)
107 fprintf (stderr, ": the g value is not a generator\n");
109 fprintf(stderr, "\n");
115 DH *tr_create_matching_dh (unsigned char *priv_key,
124 if (NULL == (dh = DH_new())) {
125 fprintf(stderr, "Unable to allocate new DH structure.\n");
129 if ((NULL == (dh->g = BN_dup(in_dh->g))) ||
130 (NULL == (dh->p = BN_dup(in_dh->p)))) {
132 fprintf(stderr, "Invalid dh parameter values, can't be duped.\n");
136 /* TBD -- share code with previous function */
137 if ((priv_key) && (keylen > 0))
138 dh->priv_key = BN_bin2bn(priv_key, keylen, NULL);
140 DH_generate_key(dh); /* generates the public key */
141 DH_check(dh, &dh_err);
143 fprintf(stderr, "Warning: dh_check failed with %d", dh_err);
144 if (dh_err & DH_CHECK_P_NOT_PRIME)
145 fprintf(stderr, ": p value is not prime\n");
146 else if (dh_err & DH_CHECK_P_NOT_SAFE_PRIME)
147 fprintf(stderr, ": p value is not a safe prime\n");
148 else if (dh_err & DH_UNABLE_TO_CHECK_GENERATOR)
149 fprintf(stderr, ": unable to check the generator value\n");
150 else if (dh_err & DH_NOT_SUITABLE_GENERATOR)
151 fprintf (stderr, ": the g value is not a generator\n");
153 fprintf(stderr, "\n");
159 void tr_destroy_dh_params(DH *dh) {
166 int tr_compute_dh_key(unsigned char **pbuf,
170 unsigned char *buf = NULL;;
176 fprintf(stderr, "tr_compute_dh_key(): Invalid parameters.\n");
180 buflen = DH_size(priv_dh);
181 buf = malloc(buflen);
183 fprintf(stderr, "out of memory\n");
188 rc = DH_compute_key(buf, pub_key, priv_dh);