test/rsa_sp800_56b_test.c

   1 /*
   2  * Copyright 2018-2019 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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 #include <stdio.h>
  11 #include <string.h>
  12
  13 #include "internal/nelem.h"
  14
  15 #include <openssl/crypto.h>
  16 #include <openssl/err.h>
  17 #include <openssl/rand.h>
  18 #include <openssl/bn.h>
  19
  20 #include "testutil.h"
  21
  22 #ifdef OPENSSL_NO_RSA
  23 int setup_tests(void)
  24 {
  25     /* No tests */
  26     return 1;
  27 }
  28 #else
  29 # include "rsa_locl.h"
  30 # include <openssl/rsa.h>
  31
  32 /* taken from RSA2 cavs data */
  33 static const unsigned char cav_e[] = {
  34     0x01,0x00,0x01
  35 };
  36 static const unsigned char cav_Xp[] = {
  37     0xcf,0x72,0x1b,0x9a,0xfd,0x0d,0x22,0x1a,0x74,0x50,0x97,0x22,0x76,0xd8,0xc0,
  38     0xc2,0xfd,0x08,0x81,0x05,0xdd,0x18,0x21,0x99,0x96,0xd6,0x5c,0x79,0xe3,0x02,
  39     0x81,0xd7,0x0e,0x3f,0x3b,0x34,0xda,0x61,0xc9,0x2d,0x84,0x86,0x62,0x1e,0x3d,
  40     0x5d,0xbf,0x92,0x2e,0xcd,0x35,0x3d,0x6e,0xb9,0x59,0x16,0xc9,0x82,0x50,0x41,
  41     0x30,0x45,0x67,0xaa,0xb7,0xbe,0xec,0xea,0x4b,0x9e,0xa0,0xc3,0x05,0xb3,0x88,
  42     0xd4,0x4c,0xac,0xeb,0xe4,0x03,0xc6,0xca,0xcb,0xd9,0xd3,0x4e,0xf6,0x7f,0x2c,
  43     0x27,0x1e,0x08,0x6c,0xc2,0xd6,0x45,0x1f,0x84,0xe4,0x3c,0x97,0x19,0xde,0xb8,
  44     0x55,0xaf,0x0e,0xcf,0x9e,0xb0,0x9c,0x20,0xd3,0x1f,0xa8,0xd7,0x52,0xc2,0x95,
  45     0x1c,0x80,0x15,0x42,0x4d,0x4f,0x19,0x16
  46 };
  47 static const unsigned char cav_Xp1[] = {
  48     0xac,0x5f,0x7f,0x6e,0x33,0x3e,0x97,0x3a,0xb3,0x17,0x44,0xa9,0x0f,0x7a,0x54,
  49     0x70,0x27,0x06,0x93,0xd5,0x49,0xde,0x91,0x83,0xbc,0x8a,0x7b,0x95
  50 };
  51 static const unsigned char cav_Xp2[] = {
  52     0x0b,0xf6,0xe8,0x79,0x5a,0x81,0xae,0x90,0x1d,0xa4,0x38,0x74,0x9c,0x0e,0x6f,
  53     0xe0,0x03,0xcf,0xc4,0x53,0x16,0x32,0x17,0xf7,0x09,0x5f,0xd9
  54 };
  55 static const unsigned char cav_Xq[] = {
  56     0xfe,0xab,0xf2,0x7c,0x16,0x4a,0xf0,0x8d,0x31,0xc6,0x0a,0x82,0xe2,0xae,0xbb,
  57     0x03,0x7e,0x7b,0x20,0x4e,0x64,0xb0,0x16,0xad,0x3c,0x01,0x1a,0xd3,0x54,0xbf,
  58     0x2b,0xa4,0x02,0x9e,0xc3,0x0d,0x60,0x3d,0x1f,0xb9,0xc0,0x0d,0xe6,0x97,0x68,
  59     0xbb,0x8c,0x81,0xd5,0xc1,0x54,0x96,0x0f,0x99,0xf0,0xa8,0xa2,0xf3,0xc6,0x8e,
  60     0xec,0xbc,0x31,0x17,0x70,0x98,0x24,0xa3,0x36,0x51,0xa8,0x54,0xbd,0x9a,0x89,
  61     0x99,0x6e,0x57,0x5e,0xd0,0x39,0x86,0xc3,0xa3,0x1b,0xc7,0xcf,0xc4,0x4f,0x47,
  62     0x25,0x9e,0x2c,0x79,0xe1,0x2c,0xcc,0xe4,0x63,0xf4,0x02,0x84,0xf8,0xf6,0xa1,
  63     0x5c,0x93,0x14,0xf2,0x68,0x5f,0x3a,0x90,0x2f,0x4e,0x5e,0xf9,0x16,0x05,0xcf,
  64     0x21,0x63,0xca,0xfa,0xb0,0x08,0x02,0xc0
  65 };
  66 static const unsigned char cav_Xq1[] = {
  67     0x9b,0x02,0xd4,0xba,0xf0,0xaa,0x14,0x99,0x6d,0xc0,0xb7,0xa5,0xe1,0xd3,0x70,
  68     0xb6,0x5a,0xa2,0x9b,0x59,0xd5,0x8c,0x1e,0x9f,0x3f,0x9a,0xde,0xeb,0x9e,0x9c,
  69     0x61,0xd6,0x5a,0xe1
  70 };
  71 static const unsigned char cav_Xq2[] = {
  72     0x06,0x81,0x53,0xfd,0xa8,0x7b,0xa3,0x85,0x90,0x15,0x2c,0x97,0xb2,0xa0,0x17,
  73     0x48,0xb0,0x7f,0x0a,0x01,0x6d
  74 };
  75 /* expected values */
  76 static const unsigned char cav_p1[] = {
  77     0xac,0x5f,0x7f,0x6e,0x33,0x3e,0x97,0x3a,0xb3,0x17,0x44,0xa9,0x0f,0x7a,0x54,
  78     0x70,0x27,0x06,0x93,0xd5,0x49,0xde,0x91,0x83,0xbc,0x8a,0x7b,0xc3
  79 };
  80 static const unsigned char cav_p2[] = {
  81     0x0b,0xf6,0xe8,0x79,0x5a,0x81,0xae,0x90,0x1d,0xa4,0x38,0x74,0x9c,0x0e,0x6f,
  82     0xe0,0x03,0xcf,0xc4,0x53,0x16,0x32,0x17,0xf7,0x09,0x5f,0xd9
  83 };
  84 static const unsigned char cav_q1[] = {
  85     0x9b,0x02,0xd4,0xba,0xf0,0xaa,0x14,0x99,0x6d,0xc0,0xb7,0xa5,0xe1,0xd3,0x70,
  86     0xb6,0x5a,0xa2,0x9b,0x59,0xd5,0x8c,0x1e,0x9f,0x3f,0x9a,0xde,0xeb,0x9e,0x9c,
  87     0x61,0xd6,0x5d,0x47
  88 };
  89 static const unsigned char cav_q2[] = {
  90     0x06,0x81,0x53,0xfd,0xa8,0x7b,0xa3,0x85,0x90,0x15,0x2c,0x97,0xb2,0xa0,0x17,
  91     0x48,0xb0,0x7f,0x0a,0x01,0x8f
  92 };
  93 static const unsigned char cav_p[] = {
  94     0xcf,0x72,0x1b,0x9a,0xfd,0x0d,0x22,0x1a,0x74,0x50,0x97,0x22,0x76,0xd8,0xc0,
  95     0xc2,0xfd,0x08,0x81,0x05,0xdd,0x18,0x21,0x99,0x96,0xd6,0x5c,0x79,0xe3,0x02,
  96     0x81,0xd7,0x0e,0x3f,0x3b,0x34,0xda,0x61,0xc9,0x2d,0x84,0x86,0x62,0x1e,0x3d,
  97     0x5d,0xbf,0x92,0x2e,0xcd,0x35,0x3d,0x6e,0xb9,0x59,0x16,0xc9,0x82,0x50,0x41,
  98     0x30,0x45,0x67,0xaa,0xb7,0xbe,0xec,0xea,0x4b,0x9e,0xa0,0xc3,0x05,0xbc,0x4c,
  99     0x01,0xa5,0x4b,0xbd,0xa4,0x20,0xb5,0x20,0xd5,0x59,0x6f,0x82,0x5c,0x8f,0x4f,
 100     0xe0,0x3a,0x4e,0x7e,0xfe,0x44,0xf3,0x3c,0xc0,0x0e,0x14,0x2b,0x32,0xe6,0x28,
 101     0x8b,0x63,0x87,0x00,0xc3,0x53,0x4a,0x5b,0x71,0x7a,0x5b,0x28,0x40,0xc4,0x18,
 102     0xb6,0x77,0x0b,0xab,0x59,0xa4,0x96,0x7d
 103 };
 104 static const unsigned char cav_q[] = {
 105     0xfe,0xab,0xf2,0x7c,0x16,0x4a,0xf0,0x8d,0x31,0xc6,0x0a,0x82,0xe2,0xae,0xbb,
 106     0x03,0x7e,0x7b,0x20,0x4e,0x64,0xb0,0x16,0xad,0x3c,0x01,0x1a,0xd3,0x54,0xbf,
 107     0x2b,0xa4,0x02,0x9e,0xc3,0x0d,0x60,0x3d,0x1f,0xb9,0xc0,0x0d,0xe6,0x97,0x68,
 108     0xbb,0x8c,0x81,0xd5,0xc1,0x54,0x96,0x0f,0x99,0xf0,0xa8,0xa2,0xf3,0xc6,0x8e,
 109     0xec,0xbc,0x31,0x17,0x70,0x98,0x24,0xa3,0x36,0x51,0xa8,0x54,0xc4,0x44,0xdd,
 110     0xf7,0x7e,0xda,0x47,0x4a,0x67,0x44,0x5d,0x4e,0x75,0xf0,0x4d,0x00,0x68,0xe1,
 111     0x4a,0xec,0x1f,0x45,0xf9,0xe6,0xca,0x38,0x95,0x48,0x6f,0xdc,0x9d,0x1b,0xa3,
 112     0x4b,0xfd,0x08,0x4b,0x54,0xcd,0xeb,0x3d,0xef,0x33,0x11,0x6e,0xce,0xe4,0x5d,
 113     0xef,0xa9,0x58,0x5c,0x87,0x4d,0xc8,0xcf
 114 };
 115 static const unsigned char cav_n[] = {
 116     0xce,0x5e,0x8d,0x1a,0xa3,0x08,0x7a,0x2d,0xb4,0x49,0x48,0xf0,0x06,0xb6,0xfe,
 117     0xba,0x2f,0x39,0x7c,0x7b,0xe0,0x5d,0x09,0x2d,0x57,0x4e,0x54,0x60,0x9c,0xe5,
 118     0x08,0x4b,0xe1,0x1a,0x73,0xc1,0x5e,0x2f,0xb6,0x46,0xd7,0x81,0xca,0xbc,0x98,
 119     0xd2,0xf9,0xef,0x1c,0x92,0x8c,0x8d,0x99,0x85,0x28,0x52,0xd6,0xd5,0xab,0x70,
 120     0x7e,0x9e,0xa9,0x87,0x82,0xc8,0x95,0x64,0xeb,0xf0,0x6c,0x0f,0x3f,0xe9,0x02,
 121     0x29,0x2e,0x6d,0xa1,0xec,0xbf,0xdc,0x23,0xdf,0x82,0x4f,0xab,0x39,0x8d,0xcc,
 122     0xac,0x21,0x51,0x14,0xf8,0xef,0xec,0x73,0x80,0x86,0xa3,0xcf,0x8f,0xd5,0xcf,
 123     0x22,0x1f,0xcc,0x23,0x2f,0xba,0xcb,0xf6,0x17,0xcd,0x3a,0x1f,0xd9,0x84,0xb9,
 124     0x88,0xa7,0x78,0x0f,0xaa,0xc9,0x04,0x01,0x20,0x72,0x5d,0x2a,0xfe,0x5b,0xdd,
 125     0x16,0x5a,0xed,0x83,0x02,0x96,0x39,0x46,0x37,0x30,0xc1,0x0d,0x87,0xc2,0xc8,
 126     0x33,0x38,0xed,0x35,0x72,0xe5,0x29,0xf8,0x1f,0x23,0x60,0xe1,0x2a,0x5b,0x1d,
 127     0x6b,0x53,0x3f,0x07,0xc4,0xd9,0xbb,0x04,0x0c,0x5c,0x3f,0x0b,0xc4,0xd4,0x61,
 128     0x96,0x94,0xf1,0x0f,0x4a,0x49,0xac,0xde,0xd2,0xe8,0x42,0xb3,0x4a,0x0b,0x64,
 129     0x7a,0x32,0x5f,0x2b,0x5b,0x0f,0x8b,0x8b,0xe0,0x33,0x23,0x34,0x64,0xf8,0xb5,
 130     0x7f,0x69,0x60,0xb8,0x71,0xe9,0xff,0x92,0x42,0xb1,0xf7,0x23,0xa8,0xa7,0x92,
 131     0x04,0x3d,0x6b,0xff,0xf7,0xab,0xbb,0x14,0x1f,0x4c,0x10,0x97,0xd5,0x6b,0x71,
 132     0x12,0xfd,0x93,0xa0,0x4a,0x3b,0x75,0x72,0x40,0x96,0x1c,0x5f,0x40,0x40,0x57,
 133     0x13
 134 };
 135 static const unsigned char cav_d[] = {
 136     0x47,0x47,0x49,0x1d,0x66,0x2a,0x4b,0x68,0xf5,0xd8,0x4a,0x24,0xfd,0x6c,0xbf,
 137     0x56,0xb7,0x70,0xf7,0x9a,0x21,0xc8,0x80,0x9e,0xf4,0x84,0xcd,0x88,0x01,0x28,
 138     0xea,0x50,0xab,0x13,0x63,0xdf,0xea,0x14,0x38,0xb5,0x07,0x42,0x81,0x2f,0xda,
 139     0xe9,0x24,0x02,0x7e,0xaf,0xef,0x74,0x09,0x0e,0x80,0xfa,0xfb,0xd1,0x19,0x41,
 140     0xe5,0xba,0x0f,0x7c,0x0a,0xa4,0x15,0x55,0xa2,0x58,0x8c,0x3a,0x48,0x2c,0xc6,
 141     0xde,0x4a,0x76,0xfb,0x72,0xb6,0x61,0xe6,0xd2,0x10,0x44,0x4c,0x33,0xb8,0xd2,
 142     0x74,0xb1,0x9d,0x3b,0xcd,0x2f,0xb1,0x4f,0xc3,0x98,0xbd,0x83,0xb7,0x7e,0x75,
 143     0xe8,0xa7,0x6a,0xee,0xcc,0x51,0x8c,0x99,0x17,0x67,0x7f,0x27,0xf9,0x0d,0x6a,
 144     0xb7,0xd4,0x80,0x17,0x89,0x39,0x9c,0xf3,0xd7,0x0f,0xdf,0xb0,0x55,0x80,0x1d,
 145     0xaf,0x57,0x2e,0xd0,0xf0,0x4f,0x42,0x69,0x55,0xbc,0x83,0xd6,0x97,0x83,0x7a,
 146     0xe6,0xc6,0x30,0x6d,0x3d,0xb5,0x21,0xa7,0xc4,0x62,0x0a,0x20,0xce,0x5e,0x5a,
 147     0x17,0x98,0xb3,0x6f,0x6b,0x9a,0xeb,0x6b,0xa3,0xc4,0x75,0xd8,0x2b,0xdc,0x5c,
 148     0x6f,0xec,0x5d,0x49,0xac,0xa8,0xa4,0x2f,0xb8,0x8c,0x4f,0x2e,0x46,0x21,0xee,
 149     0x72,0x6a,0x0e,0x22,0x80,0x71,0xc8,0x76,0x40,0x44,0x61,0x16,0xbf,0xa5,0xf8,
 150     0x89,0xc7,0xe9,0x87,0xdf,0xbd,0x2e,0x4b,0x4e,0xc2,0x97,0x53,0xe9,0x49,0x1c,
 151     0x05,0xb0,0x0b,0x9b,0x9f,0x21,0x19,0x41,0xe9,0xf5,0x61,0xd7,0x33,0x2e,0x2c,
 152     0x94,0xb8,0xa8,0x9a,0x3a,0xcc,0x6a,0x24,0x8d,0x19,0x13,0xee,0xb9,0xb0,0x48,
 153     0x61
 154 };
 155
 156 /* helper function */
 157 static BIGNUM *bn_load_new(const unsigned char *data, int sz)
 158 {
 159     BIGNUM *ret = BN_new();
 160     if (ret != NULL)
 161         BN_bin2bn(data, sz, ret);
 162     return ret;
 163 }
 164
 165 /* helper function */
 166 static BIGNUM *bn_load(BN_CTX *ctx, const unsigned char *data, int sz)
 167 {
 168     BIGNUM *ret = BN_CTX_get(ctx);
 169     if (ret != NULL)
 170         BN_bin2bn(data, sz, ret);
 171     return ret;
 172 }
 173
 174 static int test_check_public_exponent(void)
 175 {
 176     int ret = 0;
 177     BIGNUM *e = NULL;
 178
 179     ret = TEST_ptr(e = BN_new())
 180           /* e is too small */
 181           && TEST_true(BN_set_word(e, 65535))
 182           && TEST_false(rsa_check_public_exponent(e))
 183           /* e is even will fail */
 184           && TEST_true(BN_set_word(e, 65536))
 185           && TEST_false(rsa_check_public_exponent(e))
 186           /* e is ok */
 187           && TEST_true(BN_set_word(e, 65537))
 188           && TEST_true(rsa_check_public_exponent(e))
 189           /* e = 2^256 is too big */
 190           && TEST_true(BN_lshift(e, BN_value_one(), 256))
 191           && TEST_false(rsa_check_public_exponent(e))
 192           /* e = 2^256-1 is odd and in range */
 193           && TEST_true(BN_sub(e, e, BN_value_one()))
 194           && TEST_true(rsa_check_public_exponent(e));
 195     BN_free(e);
 196     return ret;
 197 }
 198
 199 static int test_check_prime_factor_range(void)
 200 {
 201     int ret = 0;
 202     BN_CTX *ctx = NULL;
 203     BIGNUM *p = NULL;
 204     BIGNUM *bn_p1 = NULL, *bn_p2 = NULL, *bn_p3 = NULL, *bn_p4 = NULL;
 205     /* Some range checks that are larger than 32 bits */
 206     static const unsigned char p1[] = { 0x0B, 0x50, 0x4F, 0x33, 0x3F };
 207     static const unsigned char p2[] = { 0x10, 0x00, 0x00, 0x00, 0x00 };
 208     static const unsigned char p3[] = { 0x0B, 0x50, 0x4F, 0x33, 0x40 };
 209     static const unsigned char p4[] = { 0x0F, 0xFF, 0xFF, 0xFF, 0xFF };
 210
 211     /* (√2)(2^(nbits/2 - 1) <= p <= 2^(nbits/2) - 1
 212      * For 8 bits:   0xB.504F <= p <= 0xF
 213      * for 72 bits:  0xB504F333F. <= p <= 0xF_FFFF_FFFF
 214      */
 215     ret = TEST_ptr(p = BN_new())
 216           && TEST_ptr(bn_p1 = bn_load_new(p1, sizeof(p1)))
 217           && TEST_ptr(bn_p2 = bn_load_new(p2, sizeof(p2)))
 218           && TEST_ptr(bn_p3 = bn_load_new(p3, sizeof(p3)))
 219           && TEST_ptr(bn_p4 = bn_load_new(p4, sizeof(p4)))
 220           && TEST_ptr(ctx = BN_CTX_new())
 221           && TEST_true(BN_set_word(p, 0xA))
 222           && TEST_false(rsa_check_prime_factor_range(p, 8, ctx))
 223           && TEST_true(BN_set_word(p, 0x10))
 224           && TEST_false(rsa_check_prime_factor_range(p, 8, ctx))
 225           && TEST_true(BN_set_word(p, 0xB))
 226           && TEST_true(rsa_check_prime_factor_range(p, 8, ctx))
 227           && TEST_true(BN_set_word(p, 0xF))
 228           && TEST_true(rsa_check_prime_factor_range(p, 8, ctx))
 229           && TEST_false(rsa_check_prime_factor_range(bn_p1, 72, ctx))
 230           && TEST_false(rsa_check_prime_factor_range(bn_p2, 72, ctx))
 231           && TEST_true(rsa_check_prime_factor_range(bn_p3, 72, ctx))
 232           && TEST_true(rsa_check_prime_factor_range(bn_p4, 72, ctx));
 233
 234     BN_free(bn_p4);
 235     BN_free(bn_p3);
 236     BN_free(bn_p2);
 237     BN_free(bn_p1);
 238     BN_free(p);
 239     BN_CTX_free(ctx);
 240     return ret;
 241 }
 242
 243 static int test_check_prime_factor(void)
 244 {
 245     int ret = 0;
 246     BN_CTX *ctx = NULL;
 247     BIGNUM *p = NULL, *e = NULL;
 248     BIGNUM *bn_p1 = NULL, *bn_p2 = NULL, *bn_p3 = NULL;
 249
 250     /* Some range checks that are larger than 32 bits */
 251     static const unsigned char p1[] = { 0x0B, 0x50, 0x4f, 0x33, 0x73 };
 252     static const unsigned char p2[] = { 0x0B, 0x50, 0x4f, 0x33, 0x75 };
 253     static const unsigned char p3[] = { 0x0F, 0x50, 0x00, 0x03, 0x75 };
 254
 255     ret = TEST_ptr(p = BN_new())
 256           && TEST_ptr(bn_p1 = bn_load_new(p1, sizeof(p1)))
 257           && TEST_ptr(bn_p2 = bn_load_new(p2, sizeof(p2)))
 258           && TEST_ptr(bn_p3 = bn_load_new(p3, sizeof(p3)))
 259           && TEST_ptr(e = BN_new())
 260           && TEST_ptr(ctx = BN_CTX_new())
 261           /* Fails the prime test */
 262           && TEST_true(BN_set_word(e, 0x1))
 263           && TEST_false(rsa_check_prime_factor(bn_p1, e, 72, ctx))
 264           /* p is prime and in range and gcd(p-1, e) = 1 */
 265           && TEST_true(rsa_check_prime_factor(bn_p2, e, 72, ctx))
 266           /* gcd(p-1,e) = 1 test fails */
 267           && TEST_true(BN_set_word(e, 0x2))
 268           && TEST_false(rsa_check_prime_factor(p, e, 72, ctx))
 269           /* p fails the range check */
 270           && TEST_true(BN_set_word(e, 0x1))
 271           && TEST_false(rsa_check_prime_factor(bn_p3, e, 72, ctx));
 272
 273     BN_free(bn_p3);
 274     BN_free(bn_p2);
 275     BN_free(bn_p1);
 276     BN_free(e);
 277     BN_free(p);
 278     BN_CTX_free(ctx);
 279     return ret;
 280 }
 281
 282 static int test_check_private_exponent(void)
 283 {
 284     int ret = 0;
 285     RSA *key = NULL;
 286     BN_CTX *ctx = NULL;
 287     BIGNUM *p = NULL, *q = NULL, *e = NULL, *d = NULL, *n = NULL;
 288
 289     ret = TEST_ptr(key = RSA_new())
 290           && TEST_ptr(ctx = BN_CTX_new())
 291           && TEST_ptr(p = BN_new())
 292           && TEST_ptr(q = BN_new())
 293           /* lcm(15-1,17-1) = 14*16 / 2 = 112 */
 294           && TEST_true(BN_set_word(p, 15))
 295           && TEST_true(BN_set_word(q, 17))
 296           && TEST_true(RSA_set0_factors(key, p, q));
 297     if (!ret) {
 298         BN_free(p);
 299         BN_free(q);
 300         goto end;
 301     }
 302
 303     ret = TEST_ptr(e = BN_new())
 304           && TEST_ptr(d = BN_new())
 305           && TEST_ptr(n = BN_new())
 306           && TEST_true(BN_set_word(e, 5))
 307           && TEST_true(BN_set_word(d, 157))
 308           && TEST_true(BN_set_word(n, 15*17))
 309           && TEST_true(RSA_set0_key(key, n, e, d));
 310     if (!ret) {
 311         BN_free(e);
 312         BN_free(d);
 313         BN_free(n);
 314         goto end;
 315     }
 316     /* fails since d >= lcm(p-1, q-1) */
 317     ret = TEST_false(rsa_check_private_exponent(key, 8, ctx))
 318           && TEST_true(BN_set_word(d, 45))
 319           /* d is correct size and 1 = e.d mod lcm(p-1, q-1) */
 320           && TEST_true(rsa_check_private_exponent(key, 8, ctx))
 321           /* d is too small compared to nbits */
 322           && TEST_false(rsa_check_private_exponent(key, 16, ctx))
 323           /* d is too small compared to nbits */
 324           && TEST_true(BN_set_word(d, 16))
 325           && TEST_false(rsa_check_private_exponent(key, 8, ctx))
 326           /* fail if 1 != e.d mod lcm(p-1, q-1) */
 327           && TEST_true(BN_set_word(d, 46))
 328           && TEST_false(rsa_check_private_exponent(key, 8, ctx));
 329 end:
 330     RSA_free(key);
 331     BN_CTX_free(ctx);
 332     return ret;
 333 }
 334
 335 static int test_check_crt_components(void)
 336 {
 337     const int P = 15;
 338     const int Q = 17;
 339     const int E = 5;
 340     const int N = P*Q;
 341     const int DP = 3;
 342     const int DQ = 13;
 343     const int QINV = 8;
 344
 345     int ret = 0;
 346     RSA *key = NULL;
 347     BN_CTX *ctx = NULL;
 348     BIGNUM *p = NULL, *q = NULL, *e = NULL;
 349
 350     ret = TEST_ptr(key = RSA_new())
 351           && TEST_ptr(ctx = BN_CTX_new())
 352           && TEST_ptr(p = BN_new())
 353           && TEST_ptr(q = BN_new())
 354           && TEST_ptr(e = BN_new())
 355           && TEST_true(BN_set_word(p, P))
 356           && TEST_true(BN_set_word(q, Q))
 357           && TEST_true(BN_set_word(e, E))
 358           && TEST_true(RSA_set0_factors(key, p, q));
 359     if (!ret) {
 360         BN_free(p);
 361         BN_free(q);
 362         goto end;
 363     }
 364     ret = TEST_true(rsa_sp800_56b_derive_params_from_pq(key, 8, e, ctx))
 365           && TEST_BN_eq_word(key->n, N)
 366           && TEST_BN_eq_word(key->dmp1, DP)
 367           && TEST_BN_eq_word(key->dmq1, DQ)
 368           && TEST_BN_eq_word(key->iqmp, QINV)
 369           && TEST_true(rsa_check_crt_components(key, ctx))
 370           /* (a) 1 < dP < (p – 1). */
 371           && TEST_true(BN_set_word(key->dmp1, 1))
 372           && TEST_false(rsa_check_crt_components(key, ctx))
 373           && TEST_true(BN_set_word(key->dmp1, P-1))
 374           && TEST_false(rsa_check_crt_components(key, ctx))
 375           && TEST_true(BN_set_word(key->dmp1, DP))
 376           /* (b) 1 < dQ < (q - 1). */
 377           && TEST_true(BN_set_word(key->dmq1, 1))
 378           && TEST_false(rsa_check_crt_components(key, ctx))
 379           && TEST_true(BN_set_word(key->dmq1, Q-1))
 380           && TEST_false(rsa_check_crt_components(key, ctx))
 381           && TEST_true(BN_set_word(key->dmq1, DQ))
 382           /* (c) 1 < qInv < p */
 383           && TEST_true(BN_set_word(key->iqmp, 1))
 384           && TEST_false(rsa_check_crt_components(key, ctx))
 385           && TEST_true(BN_set_word(key->iqmp, P))
 386           && TEST_false(rsa_check_crt_components(key, ctx))
 387           && TEST_true(BN_set_word(key->iqmp, QINV))
 388           /* (d) 1 = (dP . e) mod (p - 1)*/
 389           && TEST_true(BN_set_word(key->dmp1, DP+1))
 390           && TEST_false(rsa_check_crt_components(key, ctx))
 391           && TEST_true(BN_set_word(key->dmp1, DP))
 392           /* (e) 1 = (dQ . e) mod (q - 1) */
 393           && TEST_true(BN_set_word(key->dmq1, DQ-1))
 394           && TEST_false(rsa_check_crt_components(key, ctx))
 395           && TEST_true(BN_set_word(key->dmq1, DQ))
 396           /* (f) 1 = (qInv . q) mod p */
 397           && TEST_true(BN_set_word(key->iqmp, QINV+1))
 398           && TEST_false(rsa_check_crt_components(key, ctx))
 399           && TEST_true(BN_set_word(key->iqmp, QINV))
 400           /* check defaults are still valid */
 401           && TEST_true(rsa_check_crt_components(key, ctx));
 402 end:
 403     BN_free(e);
 404     RSA_free(key);
 405     BN_CTX_free(ctx);
 406     return ret;
 407 }
 408
 409 static int test_pq_diff(void)
 410 {
 411     int ret = 0;
 412     BIGNUM *tmp = NULL, *p = NULL, *q = NULL;
 413
 414     ret = TEST_ptr(tmp = BN_new())
 415           && TEST_ptr(p = BN_new())
 416           && TEST_ptr(q = BN_new())
 417           /* |1-(2+1)| > 2^1 */
 418           && TEST_true(BN_set_word(p, 1))
 419           && TEST_true(BN_set_word(q, 1+2))
 420           && TEST_false(rsa_check_pminusq_diff(tmp, p, q, 202))
 421           /* Check |p - q| > 2^(nbits/2 - 100) */
 422           && TEST_true(BN_set_word(q, 1+3))
 423           && TEST_true(rsa_check_pminusq_diff(tmp, p, q, 202))
 424           && TEST_true(BN_set_word(p, 1+3))
 425           && TEST_true(BN_set_word(q, 1))
 426           && TEST_true(rsa_check_pminusq_diff(tmp, p, q, 202));
 427     BN_free(p);
 428     BN_free(q);
 429     BN_free(tmp);
 430     return ret;
 431 }
 432
 433 static int test_invalid_keypair(void)
 434 {
 435     int ret = 0;
 436     RSA *key = NULL;
 437     BN_CTX *ctx = NULL;
 438     BIGNUM *p = NULL, *q = NULL, *n = NULL, *e = NULL, *d = NULL;
 439
 440     ret = TEST_ptr(key = RSA_new())
 441           && TEST_ptr(ctx = BN_CTX_new())
 442           /* NULL parameters */
 443           && TEST_false(rsa_sp800_56b_check_keypair(key, NULL, -1, 2048))
 444           /* load key */
 445           && TEST_ptr(p = bn_load_new(cav_p, sizeof(cav_p)))
 446           && TEST_ptr(q = bn_load_new(cav_q, sizeof(cav_q)))
 447           && TEST_true(RSA_set0_factors(key, p, q));
 448     if (!ret) {
 449         BN_free(p);
 450         BN_free(q);
 451         goto end;
 452     }
 453
 454     ret = TEST_ptr(e = bn_load_new(cav_e, sizeof(cav_e)))
 455           && TEST_ptr(n = bn_load_new(cav_n, sizeof(cav_n)))
 456           && TEST_ptr(d = bn_load_new(cav_d, sizeof(cav_d)))
 457           && TEST_true(RSA_set0_key(key, n, e, d));
 458     if (!ret) {
 459         BN_free(e);
 460         BN_free(n);
 461         BN_free(d);
 462         goto end;
 463     }
 464           /* bad strength/key size */
 465     ret = TEST_false(rsa_sp800_56b_check_keypair(key, NULL, 100, 2048))
 466           && TEST_false(rsa_sp800_56b_check_keypair(key, NULL, 112, 1024))
 467           && TEST_false(rsa_sp800_56b_check_keypair(key, NULL, 128, 2048))
 468           && TEST_false(rsa_sp800_56b_check_keypair(key, NULL, 140, 3072))
 469           /* mismatching exponent */
 470           && TEST_false(rsa_sp800_56b_check_keypair(key, BN_value_one(), -1,
 471                         2048))
 472           /* bad exponent */
 473           && TEST_true(BN_add_word(e, 1))
 474           && TEST_false(rsa_sp800_56b_check_keypair(key, NULL, -1,
 475                                                     2048))
 476           && TEST_true(BN_sub_word(e, 1))
 477
 478           /* mismatch between bits and modulus */
 479           && TEST_false(rsa_sp800_56b_check_keypair(key, NULL, -1, 3072))
 480           && TEST_true(rsa_sp800_56b_check_keypair(key, e, 112, 2048))
 481           /* check n == pq failure */
 482           && TEST_true(BN_add_word(n, 1))
 483           && TEST_false(rsa_sp800_56b_check_keypair(key, NULL, -1, 2048))
 484           && TEST_true(BN_sub_word(n, 1))
 485           /* check p  */
 486           && TEST_true(BN_sub_word(p, 2))
 487           && TEST_true(BN_mul(n, p, q, ctx))
 488           && TEST_false(rsa_sp800_56b_check_keypair(key, NULL, -1, 2048))
 489           && TEST_true(BN_add_word(p, 2))
 490           && TEST_true(BN_mul(n, p, q, ctx))
 491           /* check q  */
 492           && TEST_true(BN_sub_word(q, 2))
 493           && TEST_true(BN_mul(n, p, q, ctx))
 494           && TEST_false(rsa_sp800_56b_check_keypair(key, NULL, -1, 2048))
 495           && TEST_true(BN_add_word(q, 2))
 496           && TEST_true(BN_mul(n, p, q, ctx));
 497 end:
 498     RSA_free(key);
 499     BN_CTX_free(ctx);
 500     return ret;
 501 }
 502
 503 static int test_fips1864_keygen_kat(void)
 504 {
 505     int ret = 0;
 506     RSA *key = NULL;
 507     BN_CTX *ctx = NULL;
 508     BIGNUM *e, *Xp, *Xp1, *Xp2, *Xq, *Xq1, *Xq2;
 509     BIGNUM *p1, *p2, *q1, *q2;
 510     BIGNUM *p1_exp, *p2_exp, *q1_exp, *q2_exp;
 511     BIGNUM *p_exp, *q_exp, *n_exp, *d_exp;
 512     const BIGNUM *p, *q, *n, *d, *e2;
 513
 514     if (!(TEST_ptr(key = RSA_new()) && TEST_ptr(ctx = BN_CTX_new())))
 515         goto err;
 516     BN_CTX_start(ctx);
 517
 518     e = bn_load(ctx, cav_e, sizeof(cav_e));
 519     Xp = bn_load(ctx, cav_Xp, sizeof(cav_Xp));
 520     Xp1 = bn_load(ctx, cav_Xp1, sizeof(cav_Xp1));
 521     Xp2 = bn_load(ctx, cav_Xp2, sizeof(cav_Xp2));
 522     Xq = bn_load(ctx, cav_Xq, sizeof(cav_Xq));
 523     Xq1 = bn_load(ctx, cav_Xq1, sizeof(cav_Xq1));
 524     Xq2 = bn_load(ctx, cav_Xq2, sizeof(cav_Xq2));
 525     p1_exp = bn_load(ctx, cav_p1, sizeof(cav_p1));
 526     p2_exp = bn_load(ctx, cav_p2, sizeof(cav_p2));
 527     q1_exp = bn_load(ctx, cav_q1, sizeof(cav_q1));
 528     q2_exp = bn_load(ctx, cav_q2, sizeof(cav_q2));
 529     p_exp = bn_load(ctx, cav_p, sizeof(cav_p));
 530     q_exp = bn_load(ctx, cav_q, sizeof(cav_q));
 531     n_exp = bn_load(ctx, cav_n, sizeof(cav_n));
 532     d_exp = bn_load(ctx, cav_d, sizeof(cav_d));
 533     p1 = BN_CTX_get(ctx);
 534     p2 = BN_CTX_get(ctx);
 535     q1 = BN_CTX_get(ctx);
 536     q2 = BN_CTX_get(ctx);
 537     ret = TEST_ptr(q2)
 538           && TEST_true(rsa_fips186_4_gen_prob_primes(key, p1, p2, NULL, Xp, Xp1,
 539                                                      Xp2, q1, q2, NULL, Xq, Xq1,
 540                                                      Xq2, 2048, e, ctx, NULL))
 541           && TEST_true(rsa_sp800_56b_derive_params_from_pq(key, 2048, e, ctx))
 542           && TEST_BN_eq(p1_exp, p1)
 543           && TEST_BN_eq(p2_exp, p2)
 544           && TEST_BN_eq(q1_exp, q1)
 545           && TEST_BN_eq(q2_exp, q2);
 546     if (!ret)
 547         goto err;
 548
 549     RSA_get0_key(key, &n, &e2, &d);
 550     RSA_get0_factors(key, &p, &q);
 551     ret = TEST_BN_eq(e, e2)
 552           && TEST_BN_eq(p_exp, p)
 553           && TEST_BN_eq(q_exp, q)
 554           && TEST_BN_eq(n_exp, n)
 555           && TEST_BN_eq(d_exp, d);
 556 err:
 557     RSA_free(key);
 558     BN_CTX_end(ctx);
 559     BN_CTX_free(ctx);
 560     return ret;
 561 }
 562
 563
 564 static int keygen_size[] =
 565 {
 566     2048, 3072
 567 };
 568
 569 static int test_sp80056b_keygen(int id)
 570 {
 571     RSA *key = NULL;
 572     int ret;
 573     int sz = keygen_size[id];
 574
 575     ret = TEST_ptr(key = RSA_new())
 576           && TEST_true(rsa_sp800_56b_generate_key(key, sz, NULL, NULL))
 577           && TEST_true(rsa_sp800_56b_check_public(key))
 578           && TEST_true(rsa_sp800_56b_check_private(key))
 579           && TEST_true(rsa_sp800_56b_check_keypair(key, NULL, -1, sz));
 580
 581     RSA_free(key);
 582     return ret;
 583 }
 584
 585 static int test_check_private_key(void)
 586 {
 587     int ret = 0;
 588     BIGNUM *n = NULL, *d = NULL, *e = NULL;
 589     RSA *key = NULL;
 590
 591     ret = TEST_ptr(key = RSA_new())
 592           /* check NULL pointers fail */
 593           && TEST_false(rsa_sp800_56b_check_private(key))
 594           /* load private key */
 595           && TEST_ptr(n = bn_load_new(cav_n, sizeof(cav_n)))
 596           && TEST_ptr(d = bn_load_new(cav_d, sizeof(cav_d)))
 597           && TEST_ptr(e = bn_load_new(cav_e, sizeof(cav_e)))
 598           && TEST_true(RSA_set0_key(key, n, e, d));
 599     if (!ret) {
 600         BN_free(n);
 601         BN_free(e);
 602         BN_free(d);
 603         goto end;
 604     }
 605     /* check d is in range */
 606     ret = TEST_true(rsa_sp800_56b_check_private(key))
 607           /* check d is too low */
 608           && TEST_true(BN_set_word(d, 0))
 609           && TEST_false(rsa_sp800_56b_check_private(key))
 610           /* check d is too high */
 611           && TEST_ptr(BN_copy(d, n))
 612           && TEST_false(rsa_sp800_56b_check_private(key));
 613 end:
 614     RSA_free(key);
 615     return ret;
 616 }
 617
 618 static int test_check_public_key(void)
 619 {
 620     int ret = 0;
 621     BIGNUM *n = NULL, *e = NULL;
 622     RSA *key = NULL;
 623
 624     ret = TEST_ptr(key = RSA_new())
 625           /* check NULL pointers fail */
 626           && TEST_false(rsa_sp800_56b_check_public(key))
 627           /* load public key */
 628           && TEST_ptr(e = bn_load_new(cav_e, sizeof(cav_e)))
 629           && TEST_ptr(n = bn_load_new(cav_n, sizeof(cav_n)))
 630           && TEST_true(RSA_set0_key(key, n, e, NULL));
 631     if (!ret) {
 632         BN_free(e);
 633         BN_free(n);
 634         goto end;
 635     }
 636     /* check public key is valid */
 637     ret = TEST_true(rsa_sp800_56b_check_public(key))
 638           /* check fail if n is even */
 639           && TEST_true(BN_add_word(n, 1))
 640           && TEST_false(rsa_sp800_56b_check_public(key))
 641           && TEST_true(BN_sub_word(n, 1))
 642           /* check fail if n is wrong number of bits */
 643           && TEST_true(BN_lshift1(n, n))
 644           && TEST_false(rsa_sp800_56b_check_public(key))
 645           && TEST_true(BN_rshift1(n, n))
 646           /* test odd exponent fails */
 647           && TEST_true(BN_add_word(e, 1))
 648           && TEST_false(rsa_sp800_56b_check_public(key))
 649           && TEST_true(BN_sub_word(e, 1))
 650           /* modulus fails composite check */
 651           && TEST_true(BN_add_word(n, 2))
 652           && TEST_false(rsa_sp800_56b_check_public(key));
 653 end:
 654     RSA_free(key);
 655     return ret;
 656 }
 657
 658 int setup_tests(void)
 659 {
 660     ADD_TEST(test_check_public_exponent);
 661     ADD_TEST(test_check_prime_factor_range);
 662     ADD_TEST(test_check_prime_factor);
 663     ADD_TEST(test_check_private_exponent);
 664     ADD_TEST(test_check_crt_components);
 665     ADD_TEST(test_check_private_key);
 666     ADD_TEST(test_check_public_key);
 667     ADD_TEST(test_invalid_keypair);
 668     ADD_TEST(test_pq_diff);
 669     ADD_TEST(test_fips1864_keygen_kat);
 670     ADD_ALL_TESTS(test_sp80056b_keygen, (int)OSSL_NELEM(keygen_size));
 671     return 1;
 672 }
 673 #endif