| /* |
| * Copyright 2018-2021 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the Apache License 2.0 (the "License"). You may not use |
| * this file except in compliance with the License. You can obtain a copy |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| /* |
| * RSA low level APIs are deprecated for public use, but still ok for |
| * internal use. |
| */ |
| #include "internal/deprecated.h" |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include "internal/nelem.h" |
| |
| #include <openssl/crypto.h> |
| #include <openssl/err.h> |
| #include <openssl/rand.h> |
| #include <openssl/bn.h> |
| |
| #include "testutil.h" |
| |
| #include "rsa_local.h" |
| #include <openssl/rsa.h> |
| |
| /* taken from RSA2 cavs data */ |
| static const unsigned char cav_e[] = { |
| 0x01,0x00,0x01 |
| }; |
| static const unsigned char cav_p[] = { |
| 0xcf,0x72,0x1b,0x9a,0xfd,0x0d,0x22,0x1a,0x74,0x50,0x97,0x22,0x76,0xd8,0xc0, |
| 0xc2,0xfd,0x08,0x81,0x05,0xdd,0x18,0x21,0x99,0x96,0xd6,0x5c,0x79,0xe3,0x02, |
| 0x81,0xd7,0x0e,0x3f,0x3b,0x34,0xda,0x61,0xc9,0x2d,0x84,0x86,0x62,0x1e,0x3d, |
| 0x5d,0xbf,0x92,0x2e,0xcd,0x35,0x3d,0x6e,0xb9,0x59,0x16,0xc9,0x82,0x50,0x41, |
| 0x30,0x45,0x67,0xaa,0xb7,0xbe,0xec,0xea,0x4b,0x9e,0xa0,0xc3,0x05,0xbc,0x4c, |
| 0x01,0xa5,0x4b,0xbd,0xa4,0x20,0xb5,0x20,0xd5,0x59,0x6f,0x82,0x5c,0x8f,0x4f, |
| 0xe0,0x3a,0x4e,0x7e,0xfe,0x44,0xf3,0x3c,0xc0,0x0e,0x14,0x2b,0x32,0xe6,0x28, |
| 0x8b,0x63,0x87,0x00,0xc3,0x53,0x4a,0x5b,0x71,0x7a,0x5b,0x28,0x40,0xc4,0x18, |
| 0xb6,0x77,0x0b,0xab,0x59,0xa4,0x96,0x7d |
| }; |
| static const unsigned char cav_q[] = { |
| 0xfe,0xab,0xf2,0x7c,0x16,0x4a,0xf0,0x8d,0x31,0xc6,0x0a,0x82,0xe2,0xae,0xbb, |
| 0x03,0x7e,0x7b,0x20,0x4e,0x64,0xb0,0x16,0xad,0x3c,0x01,0x1a,0xd3,0x54,0xbf, |
| 0x2b,0xa4,0x02,0x9e,0xc3,0x0d,0x60,0x3d,0x1f,0xb9,0xc0,0x0d,0xe6,0x97,0x68, |
| 0xbb,0x8c,0x81,0xd5,0xc1,0x54,0x96,0x0f,0x99,0xf0,0xa8,0xa2,0xf3,0xc6,0x8e, |
| 0xec,0xbc,0x31,0x17,0x70,0x98,0x24,0xa3,0x36,0x51,0xa8,0x54,0xc4,0x44,0xdd, |
| 0xf7,0x7e,0xda,0x47,0x4a,0x67,0x44,0x5d,0x4e,0x75,0xf0,0x4d,0x00,0x68,0xe1, |
| 0x4a,0xec,0x1f,0x45,0xf9,0xe6,0xca,0x38,0x95,0x48,0x6f,0xdc,0x9d,0x1b,0xa3, |
| 0x4b,0xfd,0x08,0x4b,0x54,0xcd,0xeb,0x3d,0xef,0x33,0x11,0x6e,0xce,0xe4,0x5d, |
| 0xef,0xa9,0x58,0x5c,0x87,0x4d,0xc8,0xcf |
| }; |
| static const unsigned char cav_n[] = { |
| 0xce,0x5e,0x8d,0x1a,0xa3,0x08,0x7a,0x2d,0xb4,0x49,0x48,0xf0,0x06,0xb6,0xfe, |
| 0xba,0x2f,0x39,0x7c,0x7b,0xe0,0x5d,0x09,0x2d,0x57,0x4e,0x54,0x60,0x9c,0xe5, |
| 0x08,0x4b,0xe1,0x1a,0x73,0xc1,0x5e,0x2f,0xb6,0x46,0xd7,0x81,0xca,0xbc,0x98, |
| 0xd2,0xf9,0xef,0x1c,0x92,0x8c,0x8d,0x99,0x85,0x28,0x52,0xd6,0xd5,0xab,0x70, |
| 0x7e,0x9e,0xa9,0x87,0x82,0xc8,0x95,0x64,0xeb,0xf0,0x6c,0x0f,0x3f,0xe9,0x02, |
| 0x29,0x2e,0x6d,0xa1,0xec,0xbf,0xdc,0x23,0xdf,0x82,0x4f,0xab,0x39,0x8d,0xcc, |
| 0xac,0x21,0x51,0x14,0xf8,0xef,0xec,0x73,0x80,0x86,0xa3,0xcf,0x8f,0xd5,0xcf, |
| 0x22,0x1f,0xcc,0x23,0x2f,0xba,0xcb,0xf6,0x17,0xcd,0x3a,0x1f,0xd9,0x84,0xb9, |
| 0x88,0xa7,0x78,0x0f,0xaa,0xc9,0x04,0x01,0x20,0x72,0x5d,0x2a,0xfe,0x5b,0xdd, |
| 0x16,0x5a,0xed,0x83,0x02,0x96,0x39,0x46,0x37,0x30,0xc1,0x0d,0x87,0xc2,0xc8, |
| 0x33,0x38,0xed,0x35,0x72,0xe5,0x29,0xf8,0x1f,0x23,0x60,0xe1,0x2a,0x5b,0x1d, |
| 0x6b,0x53,0x3f,0x07,0xc4,0xd9,0xbb,0x04,0x0c,0x5c,0x3f,0x0b,0xc4,0xd4,0x61, |
| 0x96,0x94,0xf1,0x0f,0x4a,0x49,0xac,0xde,0xd2,0xe8,0x42,0xb3,0x4a,0x0b,0x64, |
| 0x7a,0x32,0x5f,0x2b,0x5b,0x0f,0x8b,0x8b,0xe0,0x33,0x23,0x34,0x64,0xf8,0xb5, |
| 0x7f,0x69,0x60,0xb8,0x71,0xe9,0xff,0x92,0x42,0xb1,0xf7,0x23,0xa8,0xa7,0x92, |
| 0x04,0x3d,0x6b,0xff,0xf7,0xab,0xbb,0x14,0x1f,0x4c,0x10,0x97,0xd5,0x6b,0x71, |
| 0x12,0xfd,0x93,0xa0,0x4a,0x3b,0x75,0x72,0x40,0x96,0x1c,0x5f,0x40,0x40,0x57, |
| 0x13 |
| }; |
| static const unsigned char cav_d[] = { |
| 0x47,0x47,0x49,0x1d,0x66,0x2a,0x4b,0x68,0xf5,0xd8,0x4a,0x24,0xfd,0x6c,0xbf, |
| 0x56,0xb7,0x70,0xf7,0x9a,0x21,0xc8,0x80,0x9e,0xf4,0x84,0xcd,0x88,0x01,0x28, |
| 0xea,0x50,0xab,0x13,0x63,0xdf,0xea,0x14,0x38,0xb5,0x07,0x42,0x81,0x2f,0xda, |
| 0xe9,0x24,0x02,0x7e,0xaf,0xef,0x74,0x09,0x0e,0x80,0xfa,0xfb,0xd1,0x19,0x41, |
| 0xe5,0xba,0x0f,0x7c,0x0a,0xa4,0x15,0x55,0xa2,0x58,0x8c,0x3a,0x48,0x2c,0xc6, |
| 0xde,0x4a,0x76,0xfb,0x72,0xb6,0x61,0xe6,0xd2,0x10,0x44,0x4c,0x33,0xb8,0xd2, |
| 0x74,0xb1,0x9d,0x3b,0xcd,0x2f,0xb1,0x4f,0xc3,0x98,0xbd,0x83,0xb7,0x7e,0x75, |
| 0xe8,0xa7,0x6a,0xee,0xcc,0x51,0x8c,0x99,0x17,0x67,0x7f,0x27,0xf9,0x0d,0x6a, |
| 0xb7,0xd4,0x80,0x17,0x89,0x39,0x9c,0xf3,0xd7,0x0f,0xdf,0xb0,0x55,0x80,0x1d, |
| 0xaf,0x57,0x2e,0xd0,0xf0,0x4f,0x42,0x69,0x55,0xbc,0x83,0xd6,0x97,0x83,0x7a, |
| 0xe6,0xc6,0x30,0x6d,0x3d,0xb5,0x21,0xa7,0xc4,0x62,0x0a,0x20,0xce,0x5e,0x5a, |
| 0x17,0x98,0xb3,0x6f,0x6b,0x9a,0xeb,0x6b,0xa3,0xc4,0x75,0xd8,0x2b,0xdc,0x5c, |
| 0x6f,0xec,0x5d,0x49,0xac,0xa8,0xa4,0x2f,0xb8,0x8c,0x4f,0x2e,0x46,0x21,0xee, |
| 0x72,0x6a,0x0e,0x22,0x80,0x71,0xc8,0x76,0x40,0x44,0x61,0x16,0xbf,0xa5,0xf8, |
| 0x89,0xc7,0xe9,0x87,0xdf,0xbd,0x2e,0x4b,0x4e,0xc2,0x97,0x53,0xe9,0x49,0x1c, |
| 0x05,0xb0,0x0b,0x9b,0x9f,0x21,0x19,0x41,0xe9,0xf5,0x61,0xd7,0x33,0x2e,0x2c, |
| 0x94,0xb8,0xa8,0x9a,0x3a,0xcc,0x6a,0x24,0x8d,0x19,0x13,0xee,0xb9,0xb0,0x48, |
| 0x61 |
| }; |
| |
| /* helper function */ |
| static BIGNUM *bn_load_new(const unsigned char *data, int sz) |
| { |
| BIGNUM *ret = BN_new(); |
| if (ret != NULL) |
| BN_bin2bn(data, sz, ret); |
| return ret; |
| } |
| |
| /* Check that small rsa exponents are allowed in non FIPS mode */ |
| static int test_check_public_exponent(void) |
| { |
| int ret = 0; |
| BIGNUM *e = NULL; |
| |
| ret = TEST_ptr(e = BN_new()) |
| /* e is too small will fail */ |
| && TEST_true(BN_set_word(e, 1)) |
| && TEST_false(ossl_rsa_check_public_exponent(e)) |
| /* e is even will fail */ |
| && TEST_true(BN_set_word(e, 65536)) |
| && TEST_false(ossl_rsa_check_public_exponent(e)) |
| /* e is ok */ |
| && TEST_true(BN_set_word(e, 3)) |
| && TEST_true(ossl_rsa_check_public_exponent(e)) |
| && TEST_true(BN_set_word(e, 17)) |
| && TEST_true(ossl_rsa_check_public_exponent(e)) |
| && TEST_true(BN_set_word(e, 65537)) |
| && TEST_true(ossl_rsa_check_public_exponent(e)) |
| /* e = 2^256 + 1 is ok */ |
| && TEST_true(BN_lshift(e, BN_value_one(), 256)) |
| && TEST_true(BN_add(e, e, BN_value_one())) |
| && TEST_true(ossl_rsa_check_public_exponent(e)); |
| BN_free(e); |
| return ret; |
| } |
| |
| static int test_check_prime_factor_range(void) |
| { |
| int ret = 0; |
| BN_CTX *ctx = NULL; |
| BIGNUM *p = NULL; |
| BIGNUM *bn_p1 = NULL, *bn_p2 = NULL, *bn_p3 = NULL, *bn_p4 = NULL; |
| /* Some range checks that are larger than 32 bits */ |
| static const unsigned char p1[] = { 0x0B, 0x50, 0x4F, 0x33, 0x3F }; |
| static const unsigned char p2[] = { 0x10, 0x00, 0x00, 0x00, 0x00 }; |
| static const unsigned char p3[] = { 0x0B, 0x50, 0x4F, 0x33, 0x40 }; |
| static const unsigned char p4[] = { 0x0F, 0xFF, 0xFF, 0xFF, 0xFF }; |
| |
| /* (√2)(2^(nbits/2 - 1) <= p <= 2^(nbits/2) - 1 |
| * For 8 bits: 0xB.504F <= p <= 0xF |
| * for 72 bits: 0xB504F333F. <= p <= 0xF_FFFF_FFFF |
| */ |
| ret = TEST_ptr(p = BN_new()) |
| && TEST_ptr(bn_p1 = bn_load_new(p1, sizeof(p1))) |
| && TEST_ptr(bn_p2 = bn_load_new(p2, sizeof(p2))) |
| && TEST_ptr(bn_p3 = bn_load_new(p3, sizeof(p3))) |
| && TEST_ptr(bn_p4 = bn_load_new(p4, sizeof(p4))) |
| && TEST_ptr(ctx = BN_CTX_new()) |
| && TEST_true(BN_set_word(p, 0xA)) |
| && TEST_false(ossl_rsa_check_prime_factor_range(p, 8, ctx)) |
| && TEST_true(BN_set_word(p, 0x10)) |
| && TEST_false(ossl_rsa_check_prime_factor_range(p, 8, ctx)) |
| && TEST_true(BN_set_word(p, 0xB)) |
| && TEST_false(ossl_rsa_check_prime_factor_range(p, 8, ctx)) |
| && TEST_true(BN_set_word(p, 0xC)) |
| && TEST_true(ossl_rsa_check_prime_factor_range(p, 8, ctx)) |
| && TEST_true(BN_set_word(p, 0xF)) |
| && TEST_true(ossl_rsa_check_prime_factor_range(p, 8, ctx)) |
| && TEST_false(ossl_rsa_check_prime_factor_range(bn_p1, 72, ctx)) |
| && TEST_false(ossl_rsa_check_prime_factor_range(bn_p2, 72, ctx)) |
| && TEST_true(ossl_rsa_check_prime_factor_range(bn_p3, 72, ctx)) |
| && TEST_true(ossl_rsa_check_prime_factor_range(bn_p4, 72, ctx)); |
| |
| BN_free(bn_p4); |
| BN_free(bn_p3); |
| BN_free(bn_p2); |
| BN_free(bn_p1); |
| BN_free(p); |
| BN_CTX_free(ctx); |
| return ret; |
| } |
| |
| static int test_check_prime_factor(void) |
| { |
| int ret = 0; |
| BN_CTX *ctx = NULL; |
| BIGNUM *p = NULL, *e = NULL; |
| BIGNUM *bn_p1 = NULL, *bn_p2 = NULL, *bn_p3 = NULL; |
| |
| /* Some range checks that are larger than 32 bits */ |
| static const unsigned char p1[] = { 0x0B, 0x50, 0x4f, 0x33, 0x73 }; |
| static const unsigned char p2[] = { 0x0B, 0x50, 0x4f, 0x33, 0x75 }; |
| static const unsigned char p3[] = { 0x0F, 0x50, 0x00, 0x03, 0x75 }; |
| |
| ret = TEST_ptr(p = BN_new()) |
| && TEST_ptr(bn_p1 = bn_load_new(p1, sizeof(p1))) |
| && TEST_ptr(bn_p2 = bn_load_new(p2, sizeof(p2))) |
| && TEST_ptr(bn_p3 = bn_load_new(p3, sizeof(p3))) |
| && TEST_ptr(e = BN_new()) |
| && TEST_ptr(ctx = BN_CTX_new()) |
| /* Fails the prime test */ |
| && TEST_true(BN_set_word(e, 0x1)) |
| && TEST_false(ossl_rsa_check_prime_factor(bn_p1, e, 72, ctx)) |
| /* p is prime and in range and gcd(p-1, e) = 1 */ |
| && TEST_true(ossl_rsa_check_prime_factor(bn_p2, e, 72, ctx)) |
| /* gcd(p-1,e) = 1 test fails */ |
| && TEST_true(BN_set_word(e, 0x2)) |
| && TEST_false(ossl_rsa_check_prime_factor(p, e, 72, ctx)) |
| /* p fails the range check */ |
| && TEST_true(BN_set_word(e, 0x1)) |
| && TEST_false(ossl_rsa_check_prime_factor(bn_p3, e, 72, ctx)); |
| |
| BN_free(bn_p3); |
| BN_free(bn_p2); |
| BN_free(bn_p1); |
| BN_free(e); |
| BN_free(p); |
| BN_CTX_free(ctx); |
| return ret; |
| } |
| |
| /* This test uses legacy functions because they can take invalid numbers */ |
| static int test_check_private_exponent(void) |
| { |
| int ret = 0; |
| RSA *key = NULL; |
| BN_CTX *ctx = NULL; |
| BIGNUM *p = NULL, *q = NULL, *e = NULL, *d = NULL, *n = NULL; |
| |
| ret = TEST_ptr(key = RSA_new()) |
| && TEST_ptr(ctx = BN_CTX_new()) |
| && TEST_ptr(p = BN_new()) |
| && TEST_ptr(q = BN_new()) |
| /* lcm(15-1,17-1) = 14*16 / 2 = 112 */ |
| && TEST_true(BN_set_word(p, 15)) |
| && TEST_true(BN_set_word(q, 17)) |
| && TEST_true(RSA_set0_factors(key, p, q)); |
| if (!ret) { |
| BN_free(p); |
| BN_free(q); |
| goto end; |
| } |
| |
| ret = TEST_ptr(e = BN_new()) |
| && TEST_ptr(d = BN_new()) |
| && TEST_ptr(n = BN_new()) |
| && TEST_true(BN_set_word(e, 5)) |
| && TEST_true(BN_set_word(d, 157)) |
| && TEST_true(BN_set_word(n, 15*17)) |
| && TEST_true(RSA_set0_key(key, n, e, d)); |
| if (!ret) { |
| BN_free(e); |
| BN_free(d); |
| BN_free(n); |
| goto end; |
| } |
| /* fails since d >= lcm(p-1, q-1) */ |
| ret = TEST_false(ossl_rsa_check_private_exponent(key, 8, ctx)) |
| && TEST_true(BN_set_word(d, 45)) |
| /* d is correct size and 1 = e.d mod lcm(p-1, q-1) */ |
| && TEST_true(ossl_rsa_check_private_exponent(key, 8, ctx)) |
| /* d is too small compared to nbits */ |
| && TEST_false(ossl_rsa_check_private_exponent(key, 16, ctx)) |
| /* d is too small compared to nbits */ |
| && TEST_true(BN_set_word(d, 16)) |
| && TEST_false(ossl_rsa_check_private_exponent(key, 8, ctx)) |
| /* fail if 1 != e.d mod lcm(p-1, q-1) */ |
| && TEST_true(BN_set_word(d, 46)) |
| && TEST_false(ossl_rsa_check_private_exponent(key, 8, ctx)); |
| end: |
| RSA_free(key); |
| BN_CTX_free(ctx); |
| return ret; |
| } |
| |
| static int test_check_crt_components(void) |
| { |
| const int P = 15; |
| const int Q = 17; |
| const int E = 5; |
| const int N = P*Q; |
| const int DP = 3; |
| const int DQ = 13; |
| const int QINV = 8; |
| |
| int ret = 0; |
| RSA *key = NULL; |
| BN_CTX *ctx = NULL; |
| BIGNUM *p = NULL, *q = NULL, *e = NULL; |
| |
| ret = TEST_ptr(key = RSA_new()) |
| && TEST_ptr(ctx = BN_CTX_new()) |
| && TEST_ptr(p = BN_new()) |
| && TEST_ptr(q = BN_new()) |
| && TEST_ptr(e = BN_new()) |
| && TEST_true(BN_set_word(p, P)) |
| && TEST_true(BN_set_word(q, Q)) |
| && TEST_true(BN_set_word(e, E)) |
| && TEST_true(RSA_set0_factors(key, p, q)); |
| if (!ret) { |
| BN_free(p); |
| BN_free(q); |
| goto end; |
| } |
| ret = TEST_true(ossl_rsa_sp800_56b_derive_params_from_pq(key, 8, e, ctx)) |
| && TEST_BN_eq_word(key->n, N) |
| && TEST_BN_eq_word(key->dmp1, DP) |
| && TEST_BN_eq_word(key->dmq1, DQ) |
| && TEST_BN_eq_word(key->iqmp, QINV) |
| && TEST_true(ossl_rsa_check_crt_components(key, ctx)) |
| /* (a) 1 < dP < (p – 1). */ |
| && TEST_true(BN_set_word(key->dmp1, 1)) |
| && TEST_false(ossl_rsa_check_crt_components(key, ctx)) |
| && TEST_true(BN_set_word(key->dmp1, P-1)) |
| && TEST_false(ossl_rsa_check_crt_components(key, ctx)) |
| && TEST_true(BN_set_word(key->dmp1, DP)) |
| /* (b) 1 < dQ < (q - 1). */ |
| && TEST_true(BN_set_word(key->dmq1, 1)) |
| && TEST_false(ossl_rsa_check_crt_components(key, ctx)) |
| && TEST_true(BN_set_word(key->dmq1, Q-1)) |
| && TEST_false(ossl_rsa_check_crt_components(key, ctx)) |
| && TEST_true(BN_set_word(key->dmq1, DQ)) |
| /* (c) 1 < qInv < p */ |
| && TEST_true(BN_set_word(key->iqmp, 1)) |
| && TEST_false(ossl_rsa_check_crt_components(key, ctx)) |
| && TEST_true(BN_set_word(key->iqmp, P)) |
| && TEST_false(ossl_rsa_check_crt_components(key, ctx)) |
| && TEST_true(BN_set_word(key->iqmp, QINV)) |
| /* (d) 1 = (dP . e) mod (p - 1)*/ |
| && TEST_true(BN_set_word(key->dmp1, DP+1)) |
| && TEST_false(ossl_rsa_check_crt_components(key, ctx)) |
| && TEST_true(BN_set_word(key->dmp1, DP)) |
| /* (e) 1 = (dQ . e) mod (q - 1) */ |
| && TEST_true(BN_set_word(key->dmq1, DQ-1)) |
| && TEST_false(ossl_rsa_check_crt_components(key, ctx)) |
| && TEST_true(BN_set_word(key->dmq1, DQ)) |
| /* (f) 1 = (qInv . q) mod p */ |
| && TEST_true(BN_set_word(key->iqmp, QINV+1)) |
| && TEST_false(ossl_rsa_check_crt_components(key, ctx)) |
| && TEST_true(BN_set_word(key->iqmp, QINV)) |
| /* check defaults are still valid */ |
| && TEST_true(ossl_rsa_check_crt_components(key, ctx)); |
| end: |
| BN_free(e); |
| RSA_free(key); |
| BN_CTX_free(ctx); |
| return ret; |
| } |
| |
| static int test_pq_diff(void) |
| { |
| int ret = 0; |
| BIGNUM *tmp = NULL, *p = NULL, *q = NULL; |
| |
| ret = TEST_ptr(tmp = BN_new()) |
| && TEST_ptr(p = BN_new()) |
| && TEST_ptr(q = BN_new()) |
| /* |1-(2+1)| > 2^1 */ |
| && TEST_true(BN_set_word(p, 1)) |
| && TEST_true(BN_set_word(q, 1+2)) |
| && TEST_false(ossl_rsa_check_pminusq_diff(tmp, p, q, 202)) |
| /* Check |p - q| > 2^(nbits/2 - 100) */ |
| && TEST_true(BN_set_word(q, 1+3)) |
| && TEST_true(ossl_rsa_check_pminusq_diff(tmp, p, q, 202)) |
| && TEST_true(BN_set_word(p, 1+3)) |
| && TEST_true(BN_set_word(q, 1)) |
| && TEST_true(ossl_rsa_check_pminusq_diff(tmp, p, q, 202)); |
| BN_free(p); |
| BN_free(q); |
| BN_free(tmp); |
| return ret; |
| } |
| |
| static int test_invalid_keypair(void) |
| { |
| int ret = 0; |
| RSA *key = NULL; |
| BN_CTX *ctx = NULL; |
| BIGNUM *p = NULL, *q = NULL, *n = NULL, *e = NULL, *d = NULL; |
| |
| ret = TEST_ptr(key = RSA_new()) |
| && TEST_ptr(ctx = BN_CTX_new()) |
| /* NULL parameters */ |
| && TEST_false(ossl_rsa_sp800_56b_check_keypair(key, NULL, -1, 2048)) |
| /* load key */ |
| && TEST_ptr(p = bn_load_new(cav_p, sizeof(cav_p))) |
| && TEST_ptr(q = bn_load_new(cav_q, sizeof(cav_q))) |
| && TEST_true(RSA_set0_factors(key, p, q)); |
| if (!ret) { |
| BN_free(p); |
| BN_free(q); |
| goto end; |
| } |
| |
| ret = TEST_ptr(e = bn_load_new(cav_e, sizeof(cav_e))) |
| && TEST_ptr(n = bn_load_new(cav_n, sizeof(cav_n))) |
| && TEST_ptr(d = bn_load_new(cav_d, sizeof(cav_d))) |
| && TEST_true(RSA_set0_key(key, n, e, d)); |
| if (!ret) { |
| BN_free(e); |
| BN_free(n); |
| BN_free(d); |
| goto end; |
| } |
| /* bad strength/key size */ |
| ret = TEST_false(ossl_rsa_sp800_56b_check_keypair(key, NULL, 100, 2048)) |
| && TEST_false(ossl_rsa_sp800_56b_check_keypair(key, NULL, 112, 1024)) |
| && TEST_false(ossl_rsa_sp800_56b_check_keypair(key, NULL, 128, 2048)) |
| && TEST_false(ossl_rsa_sp800_56b_check_keypair(key, NULL, 140, 3072)) |
| /* mismatching exponent */ |
| && TEST_false(ossl_rsa_sp800_56b_check_keypair(key, BN_value_one(), |
| -1, 2048)) |
| /* bad exponent */ |
| && TEST_true(BN_add_word(e, 1)) |
| && TEST_false(ossl_rsa_sp800_56b_check_keypair(key, NULL, -1, 2048)) |
| && TEST_true(BN_sub_word(e, 1)) |
| |
| /* mismatch between bits and modulus */ |
| && TEST_false(ossl_rsa_sp800_56b_check_keypair(key, NULL, -1, 3072)) |
| && TEST_true(ossl_rsa_sp800_56b_check_keypair(key, e, 112, 2048)) |
| /* check n == pq failure */ |
| && TEST_true(BN_add_word(n, 1)) |
| && TEST_false(ossl_rsa_sp800_56b_check_keypair(key, NULL, -1, 2048)) |
| && TEST_true(BN_sub_word(n, 1)) |
| /* check p */ |
| && TEST_true(BN_sub_word(p, 2)) |
| && TEST_true(BN_mul(n, p, q, ctx)) |
| && TEST_false(ossl_rsa_sp800_56b_check_keypair(key, NULL, -1, 2048)) |
| && TEST_true(BN_add_word(p, 2)) |
| && TEST_true(BN_mul(n, p, q, ctx)) |
| /* check q */ |
| && TEST_true(BN_sub_word(q, 2)) |
| && TEST_true(BN_mul(n, p, q, ctx)) |
| && TEST_false(ossl_rsa_sp800_56b_check_keypair(key, NULL, -1, 2048)) |
| && TEST_true(BN_add_word(q, 2)) |
| && TEST_true(BN_mul(n, p, q, ctx)); |
| end: |
| RSA_free(key); |
| BN_CTX_free(ctx); |
| return ret; |
| } |
| |
| static int keygen_size[] = |
| { |
| 2048, 3072 |
| }; |
| |
| static int test_sp80056b_keygen(int id) |
| { |
| RSA *key = NULL; |
| int ret; |
| int sz = keygen_size[id]; |
| |
| ret = TEST_ptr(key = RSA_new()) |
| && TEST_true(ossl_rsa_sp800_56b_generate_key(key, sz, NULL, NULL)) |
| && TEST_true(ossl_rsa_sp800_56b_check_public(key)) |
| && TEST_true(ossl_rsa_sp800_56b_check_private(key)) |
| && TEST_true(ossl_rsa_sp800_56b_check_keypair(key, NULL, -1, sz)); |
| |
| RSA_free(key); |
| return ret; |
| } |
| |
| static int test_check_private_key(void) |
| { |
| int ret = 0; |
| BIGNUM *n = NULL, *d = NULL, *e = NULL; |
| RSA *key = NULL; |
| |
| ret = TEST_ptr(key = RSA_new()) |
| /* check NULL pointers fail */ |
| && TEST_false(ossl_rsa_sp800_56b_check_private(key)) |
| /* load private key */ |
| && TEST_ptr(n = bn_load_new(cav_n, sizeof(cav_n))) |
| && TEST_ptr(d = bn_load_new(cav_d, sizeof(cav_d))) |
| && TEST_ptr(e = bn_load_new(cav_e, sizeof(cav_e))) |
| && TEST_true(RSA_set0_key(key, n, e, d)); |
| if (!ret) { |
| BN_free(n); |
| BN_free(e); |
| BN_free(d); |
| goto end; |
| } |
| /* check d is in range */ |
| ret = TEST_true(ossl_rsa_sp800_56b_check_private(key)) |
| /* check d is too low */ |
| && TEST_true(BN_set_word(d, 0)) |
| && TEST_false(ossl_rsa_sp800_56b_check_private(key)) |
| /* check d is too high */ |
| && TEST_ptr(BN_copy(d, n)) |
| && TEST_false(ossl_rsa_sp800_56b_check_private(key)); |
| end: |
| RSA_free(key); |
| return ret; |
| } |
| |
| static int test_check_public_key(void) |
| { |
| int ret = 0; |
| BIGNUM *n = NULL, *e = NULL; |
| RSA *key = NULL; |
| |
| ret = TEST_ptr(key = RSA_new()) |
| /* check NULL pointers fail */ |
| && TEST_false(ossl_rsa_sp800_56b_check_public(key)) |
| /* load public key */ |
| && TEST_ptr(e = bn_load_new(cav_e, sizeof(cav_e))) |
| && TEST_ptr(n = bn_load_new(cav_n, sizeof(cav_n))) |
| && TEST_true(RSA_set0_key(key, n, e, NULL)); |
| if (!ret) { |
| BN_free(e); |
| BN_free(n); |
| goto end; |
| } |
| /* check public key is valid */ |
| ret = TEST_true(ossl_rsa_sp800_56b_check_public(key)) |
| /* check fail if n is even */ |
| && TEST_true(BN_add_word(n, 1)) |
| && TEST_false(ossl_rsa_sp800_56b_check_public(key)) |
| && TEST_true(BN_sub_word(n, 1)) |
| /* check fail if n is wrong number of bits */ |
| && TEST_true(BN_lshift1(n, n)) |
| && TEST_false(ossl_rsa_sp800_56b_check_public(key)) |
| && TEST_true(BN_rshift1(n, n)) |
| /* test odd exponent fails */ |
| && TEST_true(BN_add_word(e, 1)) |
| && TEST_false(ossl_rsa_sp800_56b_check_public(key)) |
| && TEST_true(BN_sub_word(e, 1)) |
| /* modulus fails composite check */ |
| && TEST_true(BN_add_word(n, 2)) |
| && TEST_false(ossl_rsa_sp800_56b_check_public(key)); |
| end: |
| RSA_free(key); |
| return ret; |
| } |
| |
| int setup_tests(void) |
| { |
| ADD_TEST(test_check_public_exponent); |
| ADD_TEST(test_check_prime_factor_range); |
| ADD_TEST(test_check_prime_factor); |
| ADD_TEST(test_check_private_exponent); |
| ADD_TEST(test_check_crt_components); |
| ADD_TEST(test_check_private_key); |
| ADD_TEST(test_check_public_key); |
| ADD_TEST(test_invalid_keypair); |
| ADD_TEST(test_pq_diff); |
| ADD_ALL_TESTS(test_sp80056b_keygen, (int)OSSL_NELEM(keygen_size)); |
| return 1; |
| } |
