test/dhtest.c

   1 /*
   2  * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 /*
  11  * DH low level APIs are deprecated for public use, but still ok for
  12  * internal use.
  13  */
  14 #include "internal/deprecated.h"
  15
  16 #include <stdio.h>
  17 #include <stdlib.h>
  18 #include <string.h>
  19
  20 #include "internal/nelem.h"
  21 #include <openssl/crypto.h>
  22 #include <openssl/bio.h>
  23 #include <openssl/bn.h>
  24 #include <openssl/rand.h>
  25 #include <openssl/err.h>
  26 #include <openssl/obj_mac.h>
  27 #include "testutil.h"
  28
  29 #ifndef OPENSSL_NO_DH
  30 # include <openssl/dh.h>
  31
  32 static int cb(int p, int n, BN_GENCB *arg);
  33
  34 static int dh_test(void)
  35 {
  36     DH *dh = NULL;
  37     BIGNUM *p = NULL, *q = NULL, *g = NULL;
  38     const BIGNUM *p2, *q2, *g2;
  39     BIGNUM *priv_key = NULL;
  40     const BIGNUM *pub_key2, *priv_key2;
  41     BN_GENCB *_cb = NULL;
  42     DH *a = NULL;
  43     DH *b = NULL;
  44     DH *c = NULL;
  45     const BIGNUM *ap = NULL, *ag = NULL, *apub_key = NULL;
  46     const BIGNUM *bpub_key = NULL, *bpriv_key = NULL;
  47     BIGNUM *bp = NULL, *bg = NULL, *cpriv_key = NULL;
  48     unsigned char *abuf = NULL;
  49     unsigned char *bbuf = NULL;
  50     unsigned char *cbuf = NULL;
  51     int i, alen, blen, clen, aout, bout, cout;
  52     int ret = 0;
  53
  54     if (!TEST_ptr(dh = DH_new())
  55         || !TEST_ptr(p = BN_new())
  56         || !TEST_ptr(q = BN_new())
  57         || !TEST_ptr(g = BN_new())
  58         || !TEST_ptr(priv_key = BN_new()))
  59         goto err1;
  60
  61     /*
  62      * I) basic tests
  63      */
  64
  65     /* using a small predefined Sophie Germain DH group with generator 3 */
  66     if (!TEST_true(BN_set_word(p, 4079L))
  67         || !TEST_true(BN_set_word(q, 2039L))
  68         || !TEST_true(BN_set_word(g, 3L))
  69         || !TEST_true(DH_set0_pqg(dh, p, q, g)))
  70         goto err1;
  71
  72     /* check fails, because p is way too small */
  73     if (!DH_check(dh, &i))
  74         goto err2;
  75     i ^= DH_MODULUS_TOO_SMALL;
  76     if (!TEST_false(i & DH_CHECK_P_NOT_PRIME)
  77             || !TEST_false(i & DH_CHECK_P_NOT_SAFE_PRIME)
  78             || !TEST_false(i & DH_UNABLE_TO_CHECK_GENERATOR)
  79             || !TEST_false(i & DH_NOT_SUITABLE_GENERATOR)
  80             || !TEST_false(i & DH_CHECK_Q_NOT_PRIME)
  81             || !TEST_false(i & DH_CHECK_INVALID_Q_VALUE)
  82             || !TEST_false(i & DH_CHECK_INVALID_J_VALUE)
  83             || !TEST_false(i & DH_MODULUS_TOO_SMALL)
  84             || !TEST_false(i & DH_MODULUS_TOO_LARGE)
  85             || !TEST_false(i))
  86         goto err2;
  87
  88     /* test the combined getter for p, q, and g */
  89     DH_get0_pqg(dh, &p2, &q2, &g2);
  90     if (!TEST_ptr_eq(p2, p)
  91         || !TEST_ptr_eq(q2, q)
  92         || !TEST_ptr_eq(g2, g))
  93         goto err2;
  94
  95     /* test the simple getters for p, q, and g */
  96     if (!TEST_ptr_eq(DH_get0_p(dh), p2)
  97         || !TEST_ptr_eq(DH_get0_q(dh), q2)
  98         || !TEST_ptr_eq(DH_get0_g(dh), g2))
  99         goto err2;
 100
 101     /* set the private key only*/
 102     if (!TEST_true(BN_set_word(priv_key, 1234L))
 103         || !TEST_true(DH_set0_key(dh, NULL, priv_key)))
 104         goto err2;
 105
 106     /* test the combined getter for pub_key and priv_key */
 107     DH_get0_key(dh, &pub_key2, &priv_key2);
 108     if (!TEST_ptr_eq(pub_key2, NULL)
 109         || !TEST_ptr_eq(priv_key2, priv_key))
 110         goto err3;
 111
 112     /* test the simple getters for pub_key and priv_key */
 113     if (!TEST_ptr_eq(DH_get0_pub_key(dh), pub_key2)
 114         || !TEST_ptr_eq(DH_get0_priv_key(dh), priv_key2))
 115         goto err3;
 116
 117     /* now generate a key pair (expect failure since modulus is too small) */
 118     if (!TEST_false(DH_generate_key(dh)))
 119         goto err3;
 120
 121     /* We'll have a stale error on the queue from the above test so clear it */
 122     ERR_clear_error();
 123
 124     /*
 125      * II) key generation
 126      */
 127
 128     /* generate a DH group ... */
 129     if (!TEST_ptr(_cb = BN_GENCB_new()))
 130         goto err3;
 131     BN_GENCB_set(_cb, &cb, NULL);
 132     if (!TEST_ptr(a = DH_new())
 133             || !TEST_true(DH_generate_parameters_ex(a, 512,
 134                                                     DH_GENERATOR_5, _cb)))
 135         goto err3;
 136
 137     /* ... and check whether it is valid */
 138     if (!DH_check(a, &i))
 139         goto err3;
 140     if (!TEST_false(i & DH_CHECK_P_NOT_PRIME)
 141             || !TEST_false(i & DH_CHECK_P_NOT_SAFE_PRIME)
 142             || !TEST_false(i & DH_UNABLE_TO_CHECK_GENERATOR)
 143             || !TEST_false(i & DH_NOT_SUITABLE_GENERATOR)
 144             || !TEST_false(i & DH_CHECK_Q_NOT_PRIME)
 145             || !TEST_false(i & DH_CHECK_INVALID_Q_VALUE)
 146             || !TEST_false(i & DH_CHECK_INVALID_J_VALUE)
 147             || !TEST_false(i & DH_MODULUS_TOO_SMALL)
 148             || !TEST_false(i & DH_MODULUS_TOO_LARGE)
 149             || !TEST_false(i))
 150         goto err3;
 151
 152     DH_get0_pqg(a, &ap, NULL, &ag);
 153
 154     /* now create another copy of the DH group for the peer */
 155     if (!TEST_ptr(b = DH_new()))
 156         goto err3;
 157
 158     if (!TEST_ptr(bp = BN_dup(ap))
 159             || !TEST_ptr(bg = BN_dup(ag))
 160             || !TEST_true(DH_set0_pqg(b, bp, NULL, bg)))
 161         goto err3;
 162     bp = bg = NULL;
 163
 164     /*
 165      * III) simulate a key exchange
 166      */
 167
 168     if (!DH_generate_key(a))
 169         goto err3;
 170     DH_get0_key(a, &apub_key, NULL);
 171
 172     if (!DH_generate_key(b))
 173         goto err3;
 174     DH_get0_key(b, &bpub_key, &bpriv_key);
 175
 176     /* Also test with a private-key-only copy of |b|. */
 177     if (!TEST_ptr(c = DHparams_dup(b))
 178             || !TEST_ptr(cpriv_key = BN_dup(bpriv_key))
 179             || !TEST_true(DH_set0_key(c, NULL, cpriv_key)))
 180         goto err3;
 181     cpriv_key = NULL;
 182
 183     alen = DH_size(a);
 184     if (!TEST_ptr(abuf = OPENSSL_malloc(alen))
 185             || !TEST_true((aout = DH_compute_key(abuf, bpub_key, a)) != -1))
 186         goto err3;
 187
 188     blen = DH_size(b);
 189     if (!TEST_ptr(bbuf = OPENSSL_malloc(blen))
 190             || !TEST_true((bout = DH_compute_key(bbuf, apub_key, b)) != -1))
 191         goto err3;
 192
 193     clen = DH_size(c);
 194     if (!TEST_ptr(cbuf = OPENSSL_malloc(clen))
 195             || !TEST_true((cout = DH_compute_key(cbuf, apub_key, c)) != -1))
 196         goto err3;
 197
 198     if (!TEST_true(aout >= 20)
 199             || !TEST_mem_eq(abuf, aout, bbuf, bout)
 200             || !TEST_mem_eq(abuf, aout, cbuf, cout))
 201         goto err3;
 202
 203     ret = 1;
 204     goto success;
 205
 206  err1:
 207     /* an error occurred before p,q,g were assigned to dh */
 208     BN_free(p);
 209     BN_free(q);
 210     BN_free(g);
 211  err2:
 212     /* an error occurred before priv_key was assigned to dh */
 213     BN_free(priv_key);
 214  err3:
 215  success:
 216     OPENSSL_free(abuf);
 217     OPENSSL_free(bbuf);
 218     OPENSSL_free(cbuf);
 219     DH_free(b);
 220     DH_free(a);
 221     DH_free(c);
 222     BN_free(bp);
 223     BN_free(bg);
 224     BN_free(cpriv_key);
 225     BN_GENCB_free(_cb);
 226     DH_free(dh);
 227
 228     return ret;
 229 }
 230
 231 static int cb(int p, int n, BN_GENCB *arg)
 232 {
 233     return 1;
 234 }
 235
 236 /* Test data from RFC 5114 */
 237
 238 static const unsigned char dhtest_1024_160_xA[] = {
 239     0xB9, 0xA3, 0xB3, 0xAE, 0x8F, 0xEF, 0xC1, 0xA2, 0x93, 0x04, 0x96, 0x50,
 240     0x70, 0x86, 0xF8, 0x45, 0x5D, 0x48, 0x94, 0x3E
 241 };
 242
 243 static const unsigned char dhtest_1024_160_yA[] = {
 244     0x2A, 0x85, 0x3B, 0x3D, 0x92, 0x19, 0x75, 0x01, 0xB9, 0x01, 0x5B, 0x2D,
 245     0xEB, 0x3E, 0xD8, 0x4F, 0x5E, 0x02, 0x1D, 0xCC, 0x3E, 0x52, 0xF1, 0x09,
 246     0xD3, 0x27, 0x3D, 0x2B, 0x75, 0x21, 0x28, 0x1C, 0xBA, 0xBE, 0x0E, 0x76,
 247     0xFF, 0x57, 0x27, 0xFA, 0x8A, 0xCC, 0xE2, 0x69, 0x56, 0xBA, 0x9A, 0x1F,
 248     0xCA, 0x26, 0xF2, 0x02, 0x28, 0xD8, 0x69, 0x3F, 0xEB, 0x10, 0x84, 0x1D,
 249     0x84, 0xA7, 0x36, 0x00, 0x54, 0xEC, 0xE5, 0xA7, 0xF5, 0xB7, 0xA6, 0x1A,
 250     0xD3, 0xDF, 0xB3, 0xC6, 0x0D, 0x2E, 0x43, 0x10, 0x6D, 0x87, 0x27, 0xDA,
 251     0x37, 0xDF, 0x9C, 0xCE, 0x95, 0xB4, 0x78, 0x75, 0x5D, 0x06, 0xBC, 0xEA,
 252     0x8F, 0x9D, 0x45, 0x96, 0x5F, 0x75, 0xA5, 0xF3, 0xD1, 0xDF, 0x37, 0x01,
 253     0x16, 0x5F, 0xC9, 0xE5, 0x0C, 0x42, 0x79, 0xCE, 0xB0, 0x7F, 0x98, 0x95,
 254     0x40, 0xAE, 0x96, 0xD5, 0xD8, 0x8E, 0xD7, 0x76
 255 };
 256
 257 static const unsigned char dhtest_1024_160_xB[] = {
 258     0x93, 0x92, 0xC9, 0xF9, 0xEB, 0x6A, 0x7A, 0x6A, 0x90, 0x22, 0xF7, 0xD8,
 259     0x3E, 0x72, 0x23, 0xC6, 0x83, 0x5B, 0xBD, 0xDA
 260 };
 261
 262 static const unsigned char dhtest_1024_160_yB[] = {
 263     0x71, 0x7A, 0x6C, 0xB0, 0x53, 0x37, 0x1F, 0xF4, 0xA3, 0xB9, 0x32, 0x94,
 264     0x1C, 0x1E, 0x56, 0x63, 0xF8, 0x61, 0xA1, 0xD6, 0xAD, 0x34, 0xAE, 0x66,
 265     0x57, 0x6D, 0xFB, 0x98, 0xF6, 0xC6, 0xCB, 0xF9, 0xDD, 0xD5, 0xA5, 0x6C,
 266     0x78, 0x33, 0xF6, 0xBC, 0xFD, 0xFF, 0x09, 0x55, 0x82, 0xAD, 0x86, 0x8E,
 267     0x44, 0x0E, 0x8D, 0x09, 0xFD, 0x76, 0x9E, 0x3C, 0xEC, 0xCD, 0xC3, 0xD3,
 268     0xB1, 0xE4, 0xCF, 0xA0, 0x57, 0x77, 0x6C, 0xAA, 0xF9, 0x73, 0x9B, 0x6A,
 269     0x9F, 0xEE, 0x8E, 0x74, 0x11, 0xF8, 0xD6, 0xDA, 0xC0, 0x9D, 0x6A, 0x4E,
 270     0xDB, 0x46, 0xCC, 0x2B, 0x5D, 0x52, 0x03, 0x09, 0x0E, 0xAE, 0x61, 0x26,
 271     0x31, 0x1E, 0x53, 0xFD, 0x2C, 0x14, 0xB5, 0x74, 0xE6, 0xA3, 0x10, 0x9A,
 272     0x3D, 0xA1, 0xBE, 0x41, 0xBD, 0xCE, 0xAA, 0x18, 0x6F, 0x5C, 0xE0, 0x67,
 273     0x16, 0xA2, 0xB6, 0xA0, 0x7B, 0x3C, 0x33, 0xFE
 274 };
 275
 276 static const unsigned char dhtest_1024_160_Z[] = {
 277     0x5C, 0x80, 0x4F, 0x45, 0x4D, 0x30, 0xD9, 0xC4, 0xDF, 0x85, 0x27, 0x1F,
 278     0x93, 0x52, 0x8C, 0x91, 0xDF, 0x6B, 0x48, 0xAB, 0x5F, 0x80, 0xB3, 0xB5,
 279     0x9C, 0xAA, 0xC1, 0xB2, 0x8F, 0x8A, 0xCB, 0xA9, 0xCD, 0x3E, 0x39, 0xF3,
 280     0xCB, 0x61, 0x45, 0x25, 0xD9, 0x52, 0x1D, 0x2E, 0x64, 0x4C, 0x53, 0xB8,
 281     0x07, 0xB8, 0x10, 0xF3, 0x40, 0x06, 0x2F, 0x25, 0x7D, 0x7D, 0x6F, 0xBF,
 282     0xE8, 0xD5, 0xE8, 0xF0, 0x72, 0xE9, 0xB6, 0xE9, 0xAF, 0xDA, 0x94, 0x13,
 283     0xEA, 0xFB, 0x2E, 0x8B, 0x06, 0x99, 0xB1, 0xFB, 0x5A, 0x0C, 0xAC, 0xED,
 284     0xDE, 0xAE, 0xAD, 0x7E, 0x9C, 0xFB, 0xB3, 0x6A, 0xE2, 0xB4, 0x20, 0x83,
 285     0x5B, 0xD8, 0x3A, 0x19, 0xFB, 0x0B, 0x5E, 0x96, 0xBF, 0x8F, 0xA4, 0xD0,
 286     0x9E, 0x34, 0x55, 0x25, 0x16, 0x7E, 0xCD, 0x91, 0x55, 0x41, 0x6F, 0x46,
 287     0xF4, 0x08, 0xED, 0x31, 0xB6, 0x3C, 0x6E, 0x6D
 288 };
 289
 290 static const unsigned char dhtest_2048_224_xA[] = {
 291     0x22, 0xE6, 0x26, 0x01, 0xDB, 0xFF, 0xD0, 0x67, 0x08, 0xA6, 0x80, 0xF7,
 292     0x47, 0xF3, 0x61, 0xF7, 0x6D, 0x8F, 0x4F, 0x72, 0x1A, 0x05, 0x48, 0xE4,
 293     0x83, 0x29, 0x4B, 0x0C
 294 };
 295
 296 static const unsigned char dhtest_2048_224_yA[] = {
 297     0x1B, 0x3A, 0x63, 0x45, 0x1B, 0xD8, 0x86, 0xE6, 0x99, 0xE6, 0x7B, 0x49,
 298     0x4E, 0x28, 0x8B, 0xD7, 0xF8, 0xE0, 0xD3, 0x70, 0xBA, 0xDD, 0xA7, 0xA0,
 299     0xEF, 0xD2, 0xFD, 0xE7, 0xD8, 0xF6, 0x61, 0x45, 0xCC, 0x9F, 0x28, 0x04,
 300     0x19, 0x97, 0x5E, 0xB8, 0x08, 0x87, 0x7C, 0x8A, 0x4C, 0x0C, 0x8E, 0x0B,
 301     0xD4, 0x8D, 0x4A, 0x54, 0x01, 0xEB, 0x1E, 0x87, 0x76, 0xBF, 0xEE, 0xE1,
 302     0x34, 0xC0, 0x38, 0x31, 0xAC, 0x27, 0x3C, 0xD9, 0xD6, 0x35, 0xAB, 0x0C,
 303     0xE0, 0x06, 0xA4, 0x2A, 0x88, 0x7E, 0x3F, 0x52, 0xFB, 0x87, 0x66, 0xB6,
 304     0x50, 0xF3, 0x80, 0x78, 0xBC, 0x8E, 0xE8, 0x58, 0x0C, 0xEF, 0xE2, 0x43,
 305     0x96, 0x8C, 0xFC, 0x4F, 0x8D, 0xC3, 0xDB, 0x08, 0x45, 0x54, 0x17, 0x1D,
 306     0x41, 0xBF, 0x2E, 0x86, 0x1B, 0x7B, 0xB4, 0xD6, 0x9D, 0xD0, 0xE0, 0x1E,
 307     0xA3, 0x87, 0xCB, 0xAA, 0x5C, 0xA6, 0x72, 0xAF, 0xCB, 0xE8, 0xBD, 0xB9,
 308     0xD6, 0x2D, 0x4C, 0xE1, 0x5F, 0x17, 0xDD, 0x36, 0xF9, 0x1E, 0xD1, 0xEE,
 309     0xDD, 0x65, 0xCA, 0x4A, 0x06, 0x45, 0x5C, 0xB9, 0x4C, 0xD4, 0x0A, 0x52,
 310     0xEC, 0x36, 0x0E, 0x84, 0xB3, 0xC9, 0x26, 0xE2, 0x2C, 0x43, 0x80, 0xA3,
 311     0xBF, 0x30, 0x9D, 0x56, 0x84, 0x97, 0x68, 0xB7, 0xF5, 0x2C, 0xFD, 0xF6,
 312     0x55, 0xFD, 0x05, 0x3A, 0x7E, 0xF7, 0x06, 0x97, 0x9E, 0x7E, 0x58, 0x06,
 313     0xB1, 0x7D, 0xFA, 0xE5, 0x3A, 0xD2, 0xA5, 0xBC, 0x56, 0x8E, 0xBB, 0x52,
 314     0x9A, 0x7A, 0x61, 0xD6, 0x8D, 0x25, 0x6F, 0x8F, 0xC9, 0x7C, 0x07, 0x4A,
 315     0x86, 0x1D, 0x82, 0x7E, 0x2E, 0xBC, 0x8C, 0x61, 0x34, 0x55, 0x31, 0x15,
 316     0xB7, 0x0E, 0x71, 0x03, 0x92, 0x0A, 0xA1, 0x6D, 0x85, 0xE5, 0x2B, 0xCB,
 317     0xAB, 0x8D, 0x78, 0x6A, 0x68, 0x17, 0x8F, 0xA8, 0xFF, 0x7C, 0x2F, 0x5C,
 318     0x71, 0x64, 0x8D, 0x6F
 319 };
 320
 321 static const unsigned char dhtest_2048_224_xB[] = {
 322     0x4F, 0xF3, 0xBC, 0x96, 0xC7, 0xFC, 0x6A, 0x6D, 0x71, 0xD3, 0xB3, 0x63,
 323     0x80, 0x0A, 0x7C, 0xDF, 0xEF, 0x6F, 0xC4, 0x1B, 0x44, 0x17, 0xEA, 0x15,
 324     0x35, 0x3B, 0x75, 0x90
 325 };
 326
 327 static const unsigned char dhtest_2048_224_yB[] = {
 328     0x4D, 0xCE, 0xE9, 0x92, 0xA9, 0x76, 0x2A, 0x13, 0xF2, 0xF8, 0x38, 0x44,
 329     0xAD, 0x3D, 0x77, 0xEE, 0x0E, 0x31, 0xC9, 0x71, 0x8B, 0x3D, 0xB6, 0xC2,
 330     0x03, 0x5D, 0x39, 0x61, 0x18, 0x2C, 0x3E, 0x0B, 0xA2, 0x47, 0xEC, 0x41,
 331     0x82, 0xD7, 0x60, 0xCD, 0x48, 0xD9, 0x95, 0x99, 0x97, 0x06, 0x22, 0xA1,
 332     0x88, 0x1B, 0xBA, 0x2D, 0xC8, 0x22, 0x93, 0x9C, 0x78, 0xC3, 0x91, 0x2C,
 333     0x66, 0x61, 0xFA, 0x54, 0x38, 0xB2, 0x07, 0x66, 0x22, 0x2B, 0x75, 0xE2,
 334     0x4C, 0x2E, 0x3A, 0xD0, 0xC7, 0x28, 0x72, 0x36, 0x12, 0x95, 0x25, 0xEE,
 335     0x15, 0xB5, 0xDD, 0x79, 0x98, 0xAA, 0x04, 0xC4, 0xA9, 0x69, 0x6C, 0xAC,
 336     0xD7, 0x17, 0x20, 0x83, 0xA9, 0x7A, 0x81, 0x66, 0x4E, 0xAD, 0x2C, 0x47,
 337     0x9E, 0x44, 0x4E, 0x4C, 0x06, 0x54, 0xCC, 0x19, 0xE2, 0x8D, 0x77, 0x03,
 338     0xCE, 0xE8, 0xDA, 0xCD, 0x61, 0x26, 0xF5, 0xD6, 0x65, 0xEC, 0x52, 0xC6,
 339     0x72, 0x55, 0xDB, 0x92, 0x01, 0x4B, 0x03, 0x7E, 0xB6, 0x21, 0xA2, 0xAC,
 340     0x8E, 0x36, 0x5D, 0xE0, 0x71, 0xFF, 0xC1, 0x40, 0x0A, 0xCF, 0x07, 0x7A,
 341     0x12, 0x91, 0x3D, 0xD8, 0xDE, 0x89, 0x47, 0x34, 0x37, 0xAB, 0x7B, 0xA3,
 342     0x46, 0x74, 0x3C, 0x1B, 0x21, 0x5D, 0xD9, 0xC1, 0x21, 0x64, 0xA7, 0xE4,
 343     0x05, 0x31, 0x18, 0xD1, 0x99, 0xBE, 0xC8, 0xEF, 0x6F, 0xC5, 0x61, 0x17,
 344     0x0C, 0x84, 0xC8, 0x7D, 0x10, 0xEE, 0x9A, 0x67, 0x4A, 0x1F, 0xA8, 0xFF,
 345     0xE1, 0x3B, 0xDF, 0xBA, 0x1D, 0x44, 0xDE, 0x48, 0x94, 0x6D, 0x68, 0xDC,
 346     0x0C, 0xDD, 0x77, 0x76, 0x35, 0xA7, 0xAB, 0x5B, 0xFB, 0x1E, 0x4B, 0xB7,
 347     0xB8, 0x56, 0xF9, 0x68, 0x27, 0x73, 0x4C, 0x18, 0x41, 0x38, 0xE9, 0x15,
 348     0xD9, 0xC3, 0x00, 0x2E, 0xBC, 0xE5, 0x31, 0x20, 0x54, 0x6A, 0x7E, 0x20,
 349     0x02, 0x14, 0x2B, 0x6C
 350 };
 351
 352 static const unsigned char dhtest_2048_224_Z[] = {
 353     0x34, 0xD9, 0xBD, 0xDC, 0x1B, 0x42, 0x17, 0x6C, 0x31, 0x3F, 0xEA, 0x03,
 354     0x4C, 0x21, 0x03, 0x4D, 0x07, 0x4A, 0x63, 0x13, 0xBB, 0x4E, 0xCD, 0xB3,
 355     0x70, 0x3F, 0xFF, 0x42, 0x45, 0x67, 0xA4, 0x6B, 0xDF, 0x75, 0x53, 0x0E,
 356     0xDE, 0x0A, 0x9D, 0xA5, 0x22, 0x9D, 0xE7, 0xD7, 0x67, 0x32, 0x28, 0x6C,
 357     0xBC, 0x0F, 0x91, 0xDA, 0x4C, 0x3C, 0x85, 0x2F, 0xC0, 0x99, 0xC6, 0x79,
 358     0x53, 0x1D, 0x94, 0xC7, 0x8A, 0xB0, 0x3D, 0x9D, 0xEC, 0xB0, 0xA4, 0xE4,
 359     0xCA, 0x8B, 0x2B, 0xB4, 0x59, 0x1C, 0x40, 0x21, 0xCF, 0x8C, 0xE3, 0xA2,
 360     0x0A, 0x54, 0x1D, 0x33, 0x99, 0x40, 0x17, 0xD0, 0x20, 0x0A, 0xE2, 0xC9,
 361     0x51, 0x6E, 0x2F, 0xF5, 0x14, 0x57, 0x79, 0x26, 0x9E, 0x86, 0x2B, 0x0F,
 362     0xB4, 0x74, 0xA2, 0xD5, 0x6D, 0xC3, 0x1E, 0xD5, 0x69, 0xA7, 0x70, 0x0B,
 363     0x4C, 0x4A, 0xB1, 0x6B, 0x22, 0xA4, 0x55, 0x13, 0x53, 0x1E, 0xF5, 0x23,
 364     0xD7, 0x12, 0x12, 0x07, 0x7B, 0x5A, 0x16, 0x9B, 0xDE, 0xFF, 0xAD, 0x7A,
 365     0xD9, 0x60, 0x82, 0x84, 0xC7, 0x79, 0x5B, 0x6D, 0x5A, 0x51, 0x83, 0xB8,
 366     0x70, 0x66, 0xDE, 0x17, 0xD8, 0xD6, 0x71, 0xC9, 0xEB, 0xD8, 0xEC, 0x89,
 367     0x54, 0x4D, 0x45, 0xEC, 0x06, 0x15, 0x93, 0xD4, 0x42, 0xC6, 0x2A, 0xB9,
 368     0xCE, 0x3B, 0x1C, 0xB9, 0x94, 0x3A, 0x1D, 0x23, 0xA5, 0xEA, 0x3B, 0xCF,
 369     0x21, 0xA0, 0x14, 0x71, 0xE6, 0x7E, 0x00, 0x3E, 0x7F, 0x8A, 0x69, 0xC7,
 370     0x28, 0xBE, 0x49, 0x0B, 0x2F, 0xC8, 0x8C, 0xFE, 0xB9, 0x2D, 0xB6, 0xA2,
 371     0x15, 0xE5, 0xD0, 0x3C, 0x17, 0xC4, 0x64, 0xC9, 0xAC, 0x1A, 0x46, 0xE2,
 372     0x03, 0xE1, 0x3F, 0x95, 0x29, 0x95, 0xFB, 0x03, 0xC6, 0x9D, 0x3C, 0xC4,
 373     0x7F, 0xCB, 0x51, 0x0B, 0x69, 0x98, 0xFF, 0xD3, 0xAA, 0x6D, 0xE7, 0x3C,
 374     0xF9, 0xF6, 0x38, 0x69
 375 };
 376
 377 static const unsigned char dhtest_2048_256_xA[] = {
 378     0x08, 0x81, 0x38, 0x2C, 0xDB, 0x87, 0x66, 0x0C, 0x6D, 0xC1, 0x3E, 0x61,
 379     0x49, 0x38, 0xD5, 0xB9, 0xC8, 0xB2, 0xF2, 0x48, 0x58, 0x1C, 0xC5, 0xE3,
 380     0x1B, 0x35, 0x45, 0x43, 0x97, 0xFC, 0xE5, 0x0E
 381 };
 382
 383 static const unsigned char dhtest_2048_256_yA[] = {
 384     0x2E, 0x93, 0x80, 0xC8, 0x32, 0x3A, 0xF9, 0x75, 0x45, 0xBC, 0x49, 0x41,
 385     0xDE, 0xB0, 0xEC, 0x37, 0x42, 0xC6, 0x2F, 0xE0, 0xEC, 0xE8, 0x24, 0xA6,
 386     0xAB, 0xDB, 0xE6, 0x6C, 0x59, 0xBE, 0xE0, 0x24, 0x29, 0x11, 0xBF, 0xB9,
 387     0x67, 0x23, 0x5C, 0xEB, 0xA3, 0x5A, 0xE1, 0x3E, 0x4E, 0xC7, 0x52, 0xBE,
 388     0x63, 0x0B, 0x92, 0xDC, 0x4B, 0xDE, 0x28, 0x47, 0xA9, 0xC6, 0x2C, 0xB8,
 389     0x15, 0x27, 0x45, 0x42, 0x1F, 0xB7, 0xEB, 0x60, 0xA6, 0x3C, 0x0F, 0xE9,
 390     0x15, 0x9F, 0xCC, 0xE7, 0x26, 0xCE, 0x7C, 0xD8, 0x52, 0x3D, 0x74, 0x50,
 391     0x66, 0x7E, 0xF8, 0x40, 0xE4, 0x91, 0x91, 0x21, 0xEB, 0x5F, 0x01, 0xC8,
 392     0xC9, 0xB0, 0xD3, 0xD6, 0x48, 0xA9, 0x3B, 0xFB, 0x75, 0x68, 0x9E, 0x82,
 393     0x44, 0xAC, 0x13, 0x4A, 0xF5, 0x44, 0x71, 0x1C, 0xE7, 0x9A, 0x02, 0xDC,
 394     0xC3, 0x42, 0x26, 0x68, 0x47, 0x80, 0xDD, 0xDC, 0xB4, 0x98, 0x59, 0x41,
 395     0x06, 0xC3, 0x7F, 0x5B, 0xC7, 0x98, 0x56, 0x48, 0x7A, 0xF5, 0xAB, 0x02,
 396     0x2A, 0x2E, 0x5E, 0x42, 0xF0, 0x98, 0x97, 0xC1, 0xA8, 0x5A, 0x11, 0xEA,
 397     0x02, 0x12, 0xAF, 0x04, 0xD9, 0xB4, 0xCE, 0xBC, 0x93, 0x7C, 0x3C, 0x1A,
 398     0x3E, 0x15, 0xA8, 0xA0, 0x34, 0x2E, 0x33, 0x76, 0x15, 0xC8, 0x4E, 0x7F,
 399     0xE3, 0xB8, 0xB9, 0xB8, 0x7F, 0xB1, 0xE7, 0x3A, 0x15, 0xAF, 0x12, 0xA3,
 400     0x0D, 0x74, 0x6E, 0x06, 0xDF, 0xC3, 0x4F, 0x29, 0x0D, 0x79, 0x7C, 0xE5,
 401     0x1A, 0xA1, 0x3A, 0xA7, 0x85, 0xBF, 0x66, 0x58, 0xAF, 0xF5, 0xE4, 0xB0,
 402     0x93, 0x00, 0x3C, 0xBE, 0xAF, 0x66, 0x5B, 0x3C, 0x2E, 0x11, 0x3A, 0x3A,
 403     0x4E, 0x90, 0x52, 0x69, 0x34, 0x1D, 0xC0, 0x71, 0x14, 0x26, 0x68, 0x5F,
 404     0x4E, 0xF3, 0x7E, 0x86, 0x8A, 0x81, 0x26, 0xFF, 0x3F, 0x22, 0x79, 0xB5,
 405     0x7C, 0xA6, 0x7E, 0x29
 406 };
 407
 408 static const unsigned char dhtest_2048_256_xB[] = {
 409     0x7D, 0x62, 0xA7, 0xE3, 0xEF, 0x36, 0xDE, 0x61, 0x7B, 0x13, 0xD1, 0xAF,
 410     0xB8, 0x2C, 0x78, 0x0D, 0x83, 0xA2, 0x3B, 0xD4, 0xEE, 0x67, 0x05, 0x64,
 411     0x51, 0x21, 0xF3, 0x71, 0xF5, 0x46, 0xA5, 0x3D
 412 };
 413
 414 static const unsigned char dhtest_2048_256_yB[] = {
 415     0x57, 0x5F, 0x03, 0x51, 0xBD, 0x2B, 0x1B, 0x81, 0x74, 0x48, 0xBD, 0xF8,
 416     0x7A, 0x6C, 0x36, 0x2C, 0x1E, 0x28, 0x9D, 0x39, 0x03, 0xA3, 0x0B, 0x98,
 417     0x32, 0xC5, 0x74, 0x1F, 0xA2, 0x50, 0x36, 0x3E, 0x7A, 0xCB, 0xC7, 0xF7,
 418     0x7F, 0x3D, 0xAC, 0xBC, 0x1F, 0x13, 0x1A, 0xDD, 0x8E, 0x03, 0x36, 0x7E,
 419     0xFF, 0x8F, 0xBB, 0xB3, 0xE1, 0xC5, 0x78, 0x44, 0x24, 0x80, 0x9B, 0x25,
 420     0xAF, 0xE4, 0xD2, 0x26, 0x2A, 0x1A, 0x6F, 0xD2, 0xFA, 0xB6, 0x41, 0x05,
 421     0xCA, 0x30, 0xA6, 0x74, 0xE0, 0x7F, 0x78, 0x09, 0x85, 0x20, 0x88, 0x63,
 422     0x2F, 0xC0, 0x49, 0x23, 0x37, 0x91, 0xAD, 0x4E, 0xDD, 0x08, 0x3A, 0x97,
 423     0x8B, 0x88, 0x3E, 0xE6, 0x18, 0xBC, 0x5E, 0x0D, 0xD0, 0x47, 0x41, 0x5F,
 424     0x2D, 0x95, 0xE6, 0x83, 0xCF, 0x14, 0x82, 0x6B, 0x5F, 0xBE, 0x10, 0xD3,
 425     0xCE, 0x41, 0xC6, 0xC1, 0x20, 0xC7, 0x8A, 0xB2, 0x00, 0x08, 0xC6, 0x98,
 426     0xBF, 0x7F, 0x0B, 0xCA, 0xB9, 0xD7, 0xF4, 0x07, 0xBE, 0xD0, 0xF4, 0x3A,
 427     0xFB, 0x29, 0x70, 0xF5, 0x7F, 0x8D, 0x12, 0x04, 0x39, 0x63, 0xE6, 0x6D,
 428     0xDD, 0x32, 0x0D, 0x59, 0x9A, 0xD9, 0x93, 0x6C, 0x8F, 0x44, 0x13, 0x7C,
 429     0x08, 0xB1, 0x80, 0xEC, 0x5E, 0x98, 0x5C, 0xEB, 0xE1, 0x86, 0xF3, 0xD5,
 430     0x49, 0x67, 0x7E, 0x80, 0x60, 0x73, 0x31, 0xEE, 0x17, 0xAF, 0x33, 0x80,
 431     0xA7, 0x25, 0xB0, 0x78, 0x23, 0x17, 0xD7, 0xDD, 0x43, 0xF5, 0x9D, 0x7A,
 432     0xF9, 0x56, 0x8A, 0x9B, 0xB6, 0x3A, 0x84, 0xD3, 0x65, 0xF9, 0x22, 0x44,
 433     0xED, 0x12, 0x09, 0x88, 0x21, 0x93, 0x02, 0xF4, 0x29, 0x24, 0xC7, 0xCA,
 434     0x90, 0xB8, 0x9D, 0x24, 0xF7, 0x1B, 0x0A, 0xB6, 0x97, 0x82, 0x3D, 0x7D,
 435     0xEB, 0x1A, 0xFF, 0x5B, 0x0E, 0x8E, 0x4A, 0x45, 0xD4, 0x9F, 0x7F, 0x53,
 436     0x75, 0x7E, 0x19, 0x13
 437 };
 438
 439 static const unsigned char dhtest_2048_256_Z[] = {
 440     0x86, 0xC7, 0x0B, 0xF8, 0xD0, 0xBB, 0x81, 0xBB, 0x01, 0x07, 0x8A, 0x17,
 441     0x21, 0x9C, 0xB7, 0xD2, 0x72, 0x03, 0xDB, 0x2A, 0x19, 0xC8, 0x77, 0xF1,
 442     0xD1, 0xF1, 0x9F, 0xD7, 0xD7, 0x7E, 0xF2, 0x25, 0x46, 0xA6, 0x8F, 0x00,
 443     0x5A, 0xD5, 0x2D, 0xC8, 0x45, 0x53, 0xB7, 0x8F, 0xC6, 0x03, 0x30, 0xBE,
 444     0x51, 0xEA, 0x7C, 0x06, 0x72, 0xCA, 0xC1, 0x51, 0x5E, 0x4B, 0x35, 0xC0,
 445     0x47, 0xB9, 0xA5, 0x51, 0xB8, 0x8F, 0x39, 0xDC, 0x26, 0xDA, 0x14, 0xA0,
 446     0x9E, 0xF7, 0x47, 0x74, 0xD4, 0x7C, 0x76, 0x2D, 0xD1, 0x77, 0xF9, 0xED,
 447     0x5B, 0xC2, 0xF1, 0x1E, 0x52, 0xC8, 0x79, 0xBD, 0x95, 0x09, 0x85, 0x04,
 448     0xCD, 0x9E, 0xEC, 0xD8, 0xA8, 0xF9, 0xB3, 0xEF, 0xBD, 0x1F, 0x00, 0x8A,
 449     0xC5, 0x85, 0x30, 0x97, 0xD9, 0xD1, 0x83, 0x7F, 0x2B, 0x18, 0xF7, 0x7C,
 450     0xD7, 0xBE, 0x01, 0xAF, 0x80, 0xA7, 0xC7, 0xB5, 0xEA, 0x3C, 0xA5, 0x4C,
 451     0xC0, 0x2D, 0x0C, 0x11, 0x6F, 0xEE, 0x3F, 0x95, 0xBB, 0x87, 0x39, 0x93,
 452     0x85, 0x87, 0x5D, 0x7E, 0x86, 0x74, 0x7E, 0x67, 0x6E, 0x72, 0x89, 0x38,
 453     0xAC, 0xBF, 0xF7, 0x09, 0x8E, 0x05, 0xBE, 0x4D, 0xCF, 0xB2, 0x40, 0x52,
 454     0xB8, 0x3A, 0xEF, 0xFB, 0x14, 0x78, 0x3F, 0x02, 0x9A, 0xDB, 0xDE, 0x7F,
 455     0x53, 0xFA, 0xE9, 0x20, 0x84, 0x22, 0x40, 0x90, 0xE0, 0x07, 0xCE, 0xE9,
 456     0x4D, 0x4B, 0xF2, 0xBA, 0xCE, 0x9F, 0xFD, 0x4B, 0x57, 0xD2, 0xAF, 0x7C,
 457     0x72, 0x4D, 0x0C, 0xAA, 0x19, 0xBF, 0x05, 0x01, 0xF6, 0xF1, 0x7B, 0x4A,
 458     0xA1, 0x0F, 0x42, 0x5E, 0x3E, 0xA7, 0x60, 0x80, 0xB4, 0xB9, 0xD6, 0xB3,
 459     0xCE, 0xFE, 0xA1, 0x15, 0xB2, 0xCE, 0xB8, 0x78, 0x9B, 0xB8, 0xA3, 0xB0,
 460     0xEA, 0x87, 0xFE, 0xBE, 0x63, 0xB6, 0xC8, 0xF8, 0x46, 0xEC, 0x6D, 0xB0,
 461     0xC2, 0x6C, 0x5D, 0x7C
 462 };
 463
 464 static const unsigned char dhtest_rfc5114_2048_224_bad_y[] = {
 465     0x45, 0x32, 0x5F, 0x51, 0x07, 0xE5, 0xDF, 0x1C, 0xD6, 0x02, 0x82, 0xB3,
 466     0x32, 0x8F, 0xA4, 0x0F, 0x87, 0xB8, 0x41, 0xFE, 0xB9, 0x35, 0xDE, 0xAD,
 467     0xC6, 0x26, 0x85, 0xB4, 0xFF, 0x94, 0x8C, 0x12, 0x4C, 0xBF, 0x5B, 0x20,
 468     0xC4, 0x46, 0xA3, 0x26, 0xEB, 0xA4, 0x25, 0xB7, 0x68, 0x8E, 0xCC, 0x67,
 469     0xBA, 0xEA, 0x58, 0xD0, 0xF2, 0xE9, 0xD2, 0x24, 0x72, 0x60, 0xDA, 0x88,
 470     0x18, 0x9C, 0xE0, 0x31, 0x6A, 0xAD, 0x50, 0x6D, 0x94, 0x35, 0x8B, 0x83,
 471     0x4A, 0x6E, 0xFA, 0x48, 0x73, 0x0F, 0x83, 0x87, 0xFF, 0x6B, 0x66, 0x1F,
 472     0xA8, 0x82, 0xC6, 0x01, 0xE5, 0x80, 0xB5, 0xB0, 0x52, 0xD0, 0xE9, 0xD8,
 473     0x72, 0xF9, 0x7D, 0x5B, 0x8B, 0xA5, 0x4C, 0xA5, 0x25, 0x95, 0x74, 0xE2,
 474     0x7A, 0x61, 0x4E, 0xA7, 0x8F, 0x12, 0xE2, 0xD2, 0x9D, 0x8C, 0x02, 0x70,
 475     0x34, 0x44, 0x32, 0xC7, 0xB2, 0xF3, 0xB9, 0xFE, 0x17, 0x2B, 0xD6, 0x1F,
 476     0x8B, 0x7E, 0x4A, 0xFA, 0xA3, 0xB5, 0x3E, 0x7A, 0x81, 0x9A, 0x33, 0x66,
 477     0x62, 0xA4, 0x50, 0x18, 0x3E, 0xA2, 0x5F, 0x00, 0x07, 0xD8, 0x9B, 0x22,
 478     0xE4, 0xEC, 0x84, 0xD5, 0xEB, 0x5A, 0xF3, 0x2A, 0x31, 0x23, 0xD8, 0x44,
 479     0x22, 0x2A, 0x8B, 0x37, 0x44, 0xCC, 0xC6, 0x87, 0x4B, 0xBE, 0x50, 0x9D,
 480     0x4A, 0xC4, 0x8E, 0x45, 0xCF, 0x72, 0x4D, 0xC0, 0x89, 0xB3, 0x72, 0xED,
 481     0x33, 0x2C, 0xBC, 0x7F, 0x16, 0x39, 0x3B, 0xEB, 0xD2, 0xDD, 0xA8, 0x01,
 482     0x73, 0x84, 0x62, 0xB9, 0x29, 0xD2, 0xC9, 0x51, 0x32, 0x9E, 0x7A, 0x6A,
 483     0xCF, 0xC1, 0x0A, 0xDB, 0x0E, 0xE0, 0x62, 0x77, 0x6F, 0x59, 0x62, 0x72,
 484     0x5A, 0x69, 0xA6, 0x5B, 0x70, 0xCA, 0x65, 0xC4, 0x95, 0x6F, 0x9A, 0xC2,
 485     0xDF, 0x72, 0x6D, 0xB1, 0x1E, 0x54, 0x7B, 0x51, 0xB4, 0xEF, 0x7F, 0x89,
 486     0x93, 0x74, 0x89, 0x59
 487 };
 488
 489 typedef struct {
 490     DH *(*get_param) (void);
 491     const unsigned char *xA;
 492     size_t xA_len;
 493     const unsigned char *yA;
 494     size_t yA_len;
 495     const unsigned char *xB;
 496     size_t xB_len;
 497     const unsigned char *yB;
 498     size_t yB_len;
 499     const unsigned char *Z;
 500     size_t Z_len;
 501 } rfc5114_td;
 502
 503 # define make_rfc5114_td(pre) { \
 504         DH_get_##pre, \
 505         dhtest_##pre##_xA, sizeof(dhtest_##pre##_xA), \
 506         dhtest_##pre##_yA, sizeof(dhtest_##pre##_yA), \
 507         dhtest_##pre##_xB, sizeof(dhtest_##pre##_xB), \
 508         dhtest_##pre##_yB, sizeof(dhtest_##pre##_yB), \
 509         dhtest_##pre##_Z, sizeof(dhtest_##pre##_Z) \
 510         }
 511
 512 static const rfc5114_td rfctd[] = {
 513         make_rfc5114_td(1024_160),
 514         make_rfc5114_td(2048_224),
 515         make_rfc5114_td(2048_256)
 516 };
 517
 518 static int rfc5114_test(void)
 519 {
 520     int i;
 521     DH *dhA = NULL;
 522     DH *dhB = NULL;
 523     unsigned char *Z1 = NULL;
 524     unsigned char *Z2 = NULL;
 525     const rfc5114_td *td = NULL;
 526     BIGNUM *bady = NULL, *priv_key = NULL, *pub_key = NULL;
 527     const BIGNUM *pub_key_tmp;
 528
 529     for (i = 0; i < (int)OSSL_NELEM(rfctd); i++) {
 530         td = rfctd + i;
 531         /* Set up DH structures setting key components */
 532         if (!TEST_ptr(dhA = td->get_param())
 533                 || !TEST_ptr(dhB = td->get_param()))
 534             goto bad_err;
 535
 536         if (!TEST_ptr(priv_key = BN_bin2bn(td->xA, td->xA_len, NULL))
 537                 || !TEST_ptr(pub_key = BN_bin2bn(td->yA, td->yA_len, NULL))
 538                 || !TEST_true(DH_set0_key(dhA, pub_key, priv_key)))
 539             goto bad_err;
 540
 541         if (!TEST_ptr(priv_key = BN_bin2bn(td->xB, td->xB_len, NULL))
 542                 || !TEST_ptr(pub_key = BN_bin2bn(td->yB, td->yB_len, NULL))
 543                 || !TEST_true( DH_set0_key(dhB, pub_key, priv_key)))
 544             goto bad_err;
 545         priv_key = pub_key = NULL;
 546
 547         if (!TEST_uint_eq(td->Z_len, (size_t)DH_size(dhA))
 548             || !TEST_uint_eq(td->Z_len, (size_t)DH_size(dhB)))
 549             goto err;
 550
 551         if (!TEST_ptr(Z1 = OPENSSL_malloc(DH_size(dhA)))
 552                 || !TEST_ptr(Z2 = OPENSSL_malloc(DH_size(dhB))))
 553             goto bad_err;
 554         /*
 555          * Work out shared secrets using both sides and compare with expected
 556          * values.
 557          */
 558         DH_get0_key(dhB, &pub_key_tmp, NULL);
 559         if (!TEST_int_ne(DH_compute_key(Z1, pub_key_tmp, dhA), -1))
 560             goto bad_err;
 561
 562         DH_get0_key(dhA, &pub_key_tmp, NULL);
 563         if (!TEST_int_ne(DH_compute_key(Z2, pub_key_tmp, dhB), -1))
 564             goto bad_err;
 565
 566         if (!TEST_mem_eq(Z1, td->Z_len, td->Z, td->Z_len)
 567                 || !TEST_mem_eq(Z2, td->Z_len, td->Z, td->Z_len))
 568             goto err;
 569
 570         DH_free(dhA);
 571         dhA = NULL;
 572         DH_free(dhB);
 573         dhB = NULL;
 574         OPENSSL_free(Z1);
 575         Z1 = NULL;
 576         OPENSSL_free(Z2);
 577         Z2 = NULL;
 578     }
 579
 580     /* Now i == OSSL_NELEM(rfctd) */
 581     /* RFC5114 uses unsafe primes, so now test an invalid y value */
 582     if (!TEST_ptr(dhA = DH_get_2048_224())
 583             || !TEST_ptr(Z1 = OPENSSL_malloc(DH_size(dhA))))
 584         goto bad_err;
 585
 586     if (!TEST_ptr(bady = BN_bin2bn(dhtest_rfc5114_2048_224_bad_y,
 587                                    sizeof(dhtest_rfc5114_2048_224_bad_y),
 588                                    NULL)))
 589         goto bad_err;
 590
 591     if (!DH_generate_key(dhA))
 592         goto bad_err;
 593
 594     if (DH_compute_key(Z1, bady, dhA) != -1) {
 595         /*
 596          * DH_compute_key should fail with -1. If we get here we unexpectedly
 597          * allowed an invalid y value
 598          */
 599         goto err;
 600     }
 601     /* We'll have a stale error on the queue from the above test so clear it */
 602     ERR_clear_error();
 603     BN_free(bady);
 604     DH_free(dhA);
 605     OPENSSL_free(Z1);
 606     return 1;
 607
 608  bad_err:
 609     BN_free(bady);
 610     DH_free(dhA);
 611     DH_free(dhB);
 612     BN_free(pub_key);
 613     BN_free(priv_key);
 614     OPENSSL_free(Z1);
 615     OPENSSL_free(Z2);
 616     TEST_error("Initialisation error RFC5114 set %d\n", i + 1);
 617     return 0;
 618
 619  err:
 620     BN_free(bady);
 621     DH_free(dhA);
 622     DH_free(dhB);
 623     OPENSSL_free(Z1);
 624     OPENSSL_free(Z2);
 625     TEST_error("Test failed RFC5114 set %d\n", i + 1);
 626     return 0;
 627 }
 628
 629 static int rfc7919_test(void)
 630 {
 631     DH *a = NULL, *b = NULL;
 632     const BIGNUM *apub_key = NULL, *bpub_key = NULL;
 633     unsigned char *abuf = NULL;
 634     unsigned char *bbuf = NULL;
 635     int i, alen, blen, aout, bout;
 636     int ret = 0;
 637
 638     if (!TEST_ptr(a = DH_new_by_nid(NID_ffdhe2048)))
 639          goto err;
 640
 641     if (!DH_check(a, &i))
 642         goto err;
 643     if (!TEST_false(i & DH_CHECK_P_NOT_PRIME)
 644             || !TEST_false(i & DH_CHECK_P_NOT_SAFE_PRIME)
 645             || !TEST_false(i & DH_UNABLE_TO_CHECK_GENERATOR)
 646             || !TEST_false(i & DH_NOT_SUITABLE_GENERATOR)
 647             || !TEST_false(i))
 648         goto err;
 649
 650     if (!DH_generate_key(a))
 651         goto err;
 652     DH_get0_key(a, &apub_key, NULL);
 653
 654     /* now create another copy of the DH group for the peer */
 655     if (!TEST_ptr(b = DH_new_by_nid(NID_ffdhe2048)))
 656         goto err;
 657
 658     if (!DH_generate_key(b))
 659         goto err;
 660     DH_get0_key(b, &bpub_key, NULL);
 661
 662     alen = DH_size(a);
 663     if (!TEST_ptr(abuf = OPENSSL_malloc(alen))
 664             || !TEST_true((aout = DH_compute_key(abuf, bpub_key, a)) != -1))
 665         goto err;
 666
 667     blen = DH_size(b);
 668     if (!TEST_ptr(bbuf = OPENSSL_malloc(blen))
 669             || !TEST_true((bout = DH_compute_key(bbuf, apub_key, b)) != -1))
 670         goto err;
 671
 672     if (!TEST_true(aout >= 20)
 673             || !TEST_mem_eq(abuf, aout, bbuf, bout))
 674         goto err;
 675
 676     ret = 1;
 677
 678  err:
 679     OPENSSL_free(abuf);
 680     OPENSSL_free(bbuf);
 681     DH_free(a);
 682     DH_free(b);
 683     return ret;
 684 }
 685
 686 static int prime_groups[] = {
 687     NID_ffdhe2048,
 688     NID_ffdhe3072,
 689     NID_ffdhe4096,
 690     NID_ffdhe6144,
 691     NID_ffdhe8192,
 692     NID_modp_2048,
 693     NID_modp_3072,
 694     NID_modp_4096,
 695     NID_modp_6144,
 696 };
 697
 698 static int dh_test_prime_groups(int index)
 699 {
 700     int ok = 0;
 701     DH *dh = NULL;
 702     const BIGNUM *p, *q, *g;
 703
 704     if (!TEST_ptr(dh = DH_new_by_nid(prime_groups[index])))
 705         goto err;
 706     DH_get0_pqg(dh, &p, &q, &g);
 707     if (!TEST_ptr(p) || !TEST_ptr(q) || !TEST_ptr(g))
 708         goto err;
 709
 710     if (!TEST_int_eq(DH_get_nid(dh), prime_groups[index]))
 711         goto err;
 712     ok = 1;
 713 err:
 714     DH_free(dh);
 715     return ok;
 716 }
 717 #endif
 718
 719
 720 int setup_tests(void)
 721 {
 722 #ifdef OPENSSL_NO_DH
 723     TEST_note("No DH support");
 724 #else
 725     ADD_TEST(dh_test);
 726     ADD_TEST(rfc5114_test);
 727     ADD_TEST(rfc7919_test);
 728     ADD_ALL_TESTS(dh_test_prime_groups, OSSL_NELEM(prime_groups));
 729 #endif
 730     return 1;
 731 }