| /* |
| * Copyright 1995-2021 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 |
| */ |
| |
| /* |
| * DSA low level APIs are deprecated for public use, but still ok for |
| * internal use. |
| */ |
| #include "internal/deprecated.h" |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| #include <openssl/crypto.h> |
| #include <openssl/rand.h> |
| #include <openssl/bn.h> |
| #include <openssl/dsa.h> |
| #include <openssl/evp.h> |
| #include <openssl/core_names.h> |
| |
| #include "testutil.h" |
| #include "internal/nelem.h" |
| |
| #ifndef OPENSSL_NO_DSA |
| static int dsa_cb(int p, int n, BN_GENCB *arg); |
| |
| static int dsa_test(void) |
| { |
| BN_GENCB *cb; |
| DSA *dsa = NULL; |
| int counter, ret = 0, i, j; |
| unsigned char buf[256]; |
| unsigned long h; |
| unsigned char sig[256]; |
| unsigned int siglen; |
| const BIGNUM *p = NULL, *q = NULL, *g = NULL; |
| /* |
| * seed, out_p, out_q, out_g are taken from the updated Appendix 5 to FIPS |
| * PUB 186 and also appear in Appendix 5 to FIPS PIB 186-1 |
| */ |
| static unsigned char seed[20] = { |
| 0xd5, 0x01, 0x4e, 0x4b, 0x60, 0xef, 0x2b, 0xa8, |
| 0xb6, 0x21, 0x1b, 0x40, 0x62, 0xba, 0x32, 0x24, |
| 0xe0, 0x42, 0x7d, 0xd3, |
| }; |
| static unsigned char out_p[] = { |
| 0x8d, 0xf2, 0xa4, 0x94, 0x49, 0x22, 0x76, 0xaa, |
| 0x3d, 0x25, 0x75, 0x9b, 0xb0, 0x68, 0x69, 0xcb, |
| 0xea, 0xc0, 0xd8, 0x3a, 0xfb, 0x8d, 0x0c, 0xf7, |
| 0xcb, 0xb8, 0x32, 0x4f, 0x0d, 0x78, 0x82, 0xe5, |
| 0xd0, 0x76, 0x2f, 0xc5, 0xb7, 0x21, 0x0e, 0xaf, |
| 0xc2, 0xe9, 0xad, 0xac, 0x32, 0xab, 0x7a, 0xac, |
| 0x49, 0x69, 0x3d, 0xfb, 0xf8, 0x37, 0x24, 0xc2, |
| 0xec, 0x07, 0x36, 0xee, 0x31, 0xc8, 0x02, 0x91, |
| }; |
| static unsigned char out_q[] = { |
| 0xc7, 0x73, 0x21, 0x8c, 0x73, 0x7e, 0xc8, 0xee, |
| 0x99, 0x3b, 0x4f, 0x2d, 0xed, 0x30, 0xf4, 0x8e, |
| 0xda, 0xce, 0x91, 0x5f, |
| }; |
| static unsigned char out_g[] = { |
| 0x62, 0x6d, 0x02, 0x78, 0x39, 0xea, 0x0a, 0x13, |
| 0x41, 0x31, 0x63, 0xa5, 0x5b, 0x4c, 0xb5, 0x00, |
| 0x29, 0x9d, 0x55, 0x22, 0x95, 0x6c, 0xef, 0xcb, |
| 0x3b, 0xff, 0x10, 0xf3, 0x99, 0xce, 0x2c, 0x2e, |
| 0x71, 0xcb, 0x9d, 0xe5, 0xfa, 0x24, 0xba, 0xbf, |
| 0x58, 0xe5, 0xb7, 0x95, 0x21, 0x92, 0x5c, 0x9c, |
| 0xc4, 0x2e, 0x9f, 0x6f, 0x46, 0x4b, 0x08, 0x8c, |
| 0xc5, 0x72, 0xaf, 0x53, 0xe6, 0xd7, 0x88, 0x02, |
| }; |
| static const unsigned char str1[] = "12345678901234567890"; |
| |
| if (!TEST_ptr(cb = BN_GENCB_new())) |
| goto end; |
| |
| BN_GENCB_set(cb, dsa_cb, NULL); |
| if (!TEST_ptr(dsa = DSA_new()) |
| || !TEST_true(DSA_generate_parameters_ex(dsa, 512, seed, 20, |
| &counter, &h, cb))) |
| goto end; |
| |
| if (!TEST_int_eq(counter, 105)) |
| goto end; |
| if (!TEST_int_eq(h, 2)) |
| goto end; |
| |
| DSA_get0_pqg(dsa, &p, &q, &g); |
| i = BN_bn2bin(q, buf); |
| j = sizeof(out_q); |
| if (!TEST_int_eq(i, j) || !TEST_mem_eq(buf, i, out_q, i)) |
| goto end; |
| |
| i = BN_bn2bin(p, buf); |
| j = sizeof(out_p); |
| if (!TEST_int_eq(i, j) || !TEST_mem_eq(buf, i, out_p, i)) |
| goto end; |
| |
| i = BN_bn2bin(g, buf); |
| j = sizeof(out_g); |
| if (!TEST_int_eq(i, j) || !TEST_mem_eq(buf, i, out_g, i)) |
| goto end; |
| |
| if (!TEST_true(DSA_generate_key(dsa))) |
| goto end; |
| if (!TEST_true(DSA_sign(0, str1, 20, sig, &siglen, dsa))) |
| goto end; |
| if (TEST_int_gt(DSA_verify(0, str1, 20, sig, siglen, dsa), 0)) |
| ret = 1; |
| |
| end: |
| DSA_free(dsa); |
| BN_GENCB_free(cb); |
| return ret; |
| } |
| |
| static int dsa_cb(int p, int n, BN_GENCB *arg) |
| { |
| static int ok = 0, num = 0; |
| |
| if (p == 0) |
| num++; |
| if (p == 2) |
| ok++; |
| |
| if (!ok && (p == 0) && (num > 1)) { |
| TEST_error("dsa_cb error"); |
| return 0; |
| } |
| return 1; |
| } |
| |
| # define P 0 |
| # define Q 1 |
| # define G 2 |
| # define SEED 3 |
| # define PCOUNT 4 |
| # define GINDEX 5 |
| # define HCOUNT 6 |
| # define GROUP 7 |
| |
| static int dsa_keygen_test(void) |
| { |
| int ret = 0; |
| EVP_PKEY *param_key = NULL, *key = NULL; |
| EVP_PKEY_CTX *pg_ctx = NULL, *kg_ctx = NULL; |
| BIGNUM *p_in = NULL, *q_in = NULL, *g_in = NULL; |
| BIGNUM *p_out = NULL, *q_out = NULL, *g_out = NULL; |
| int gindex_out = 0, pcount_out = 0, hcount_out = 0; |
| unsigned char seed_out[32]; |
| char group_out[32]; |
| size_t len = 0; |
| const OSSL_PARAM *settables = NULL; |
| static const unsigned char seed_data[] = { |
| 0xa6, 0xf5, 0x28, 0x8c, 0x50, 0x77, 0xa5, 0x68, |
| 0x6d, 0x3a, 0xf5, 0xf1, 0xc6, 0x4c, 0xdc, 0x35, |
| 0x95, 0x26, 0x3f, 0x03, 0xdc, 0x00, 0x3f, 0x44, |
| 0x7b, 0x2a, 0xc7, 0x29 |
| }; |
| static const unsigned char expected_p[]= { |
| 0xdb, 0x47, 0x07, 0xaf, 0xf0, 0x06, 0x49, 0x55, |
| 0xc9, 0xbb, 0x09, 0x41, 0xb8, 0xdb, 0x1f, 0xbc, |
| 0xa8, 0xed, 0x12, 0x06, 0x7f, 0x88, 0x49, 0xb8, |
| 0xc9, 0x12, 0x87, 0x21, 0xbb, 0x08, 0x6c, 0xbd, |
| 0xf1, 0x89, 0xef, 0x84, 0xd9, 0x7a, 0x93, 0xe8, |
| 0x45, 0x40, 0x81, 0xec, 0x37, 0x27, 0x1a, 0xa4, |
| 0x22, 0x51, 0x99, 0xf0, 0xde, 0x04, 0xdb, 0xea, |
| 0xa1, 0xf9, 0x37, 0x83, 0x80, 0x96, 0x36, 0x53, |
| 0xf6, 0xae, 0x14, 0x73, 0x33, 0x0f, 0xdf, 0x0b, |
| 0xf9, 0x2f, 0x08, 0x46, 0x31, 0xf9, 0x66, 0xcd, |
| 0x5a, 0xeb, 0x6c, 0xf3, 0xbb, 0x74, 0xf3, 0x88, |
| 0xf0, 0x31, 0x5c, 0xa4, 0xc8, 0x0f, 0x86, 0xf3, |
| 0x0f, 0x9f, 0xc0, 0x8c, 0x57, 0xe4, 0x7f, 0x95, |
| 0xb3, 0x62, 0xc8, 0x4e, 0xae, 0xf3, 0xd8, 0x14, |
| 0xcc, 0x47, 0xc2, 0x4b, 0x4f, 0xef, 0xaf, 0xcd, |
| 0xcf, 0xb2, 0xbb, 0xe8, 0xbe, 0x08, 0xca, 0x15, |
| 0x90, 0x59, 0x35, 0xef, 0x35, 0x1c, 0xfe, 0xeb, |
| 0x33, 0x2e, 0x25, 0x22, 0x57, 0x9c, 0x55, 0x23, |
| 0x0c, 0x6f, 0xed, 0x7c, 0xb6, 0xc7, 0x36, 0x0b, |
| 0xcb, 0x2b, 0x6a, 0x21, 0xa1, 0x1d, 0x55, 0x77, |
| 0xd9, 0x91, 0xcd, 0xc1, 0xcd, 0x3d, 0x82, 0x16, |
| 0x9c, 0xa0, 0x13, 0xa5, 0x83, 0x55, 0x3a, 0x73, |
| 0x7e, 0x2c, 0x44, 0x3e, 0x70, 0x2e, 0x50, 0x91, |
| 0x6e, 0xca, 0x3b, 0xef, 0xff, 0x85, 0x35, 0x70, |
| 0xff, 0x61, 0x0c, 0xb1, 0xb2, 0xb7, 0x94, 0x6f, |
| 0x65, 0xa4, 0x57, 0x62, 0xef, 0x21, 0x83, 0x0f, |
| 0x3e, 0x71, 0xae, 0x7d, 0xe4, 0xad, 0xfb, 0xe3, |
| 0xdd, 0xd6, 0x03, 0xda, 0x9a, 0xd8, 0x8f, 0x2d, |
| 0xbb, 0x90, 0x87, 0xf8, 0xdb, 0xdc, 0xec, 0x71, |
| 0xf2, 0xdb, 0x0b, 0x8e, 0xfc, 0x1a, 0x7e, 0x79, |
| 0xb1, 0x1b, 0x0d, 0xfc, 0x70, 0xec, 0x85, 0xc2, |
| 0xc5, 0xba, 0xb9, 0x69, 0x3f, 0x88, 0xbc, 0xcb |
| }; |
| static const unsigned char expected_q[]= { |
| 0x99, 0xb6, 0xa0, 0xee, 0xb3, 0xa6, 0x99, 0x1a, |
| 0xb6, 0x67, 0x8d, 0xc1, 0x2b, 0x9b, 0xce, 0x2b, |
| 0x01, 0x72, 0x5a, 0x65, 0x76, 0x3d, 0x93, 0x69, |
| 0xe2, 0x56, 0xae, 0xd7 |
| }; |
| static const unsigned char expected_g[]= { |
| 0x63, 0xf8, 0xb6, 0xee, 0x2a, 0x27, 0xaf, 0x4f, |
| 0x4c, 0xf6, 0x08, 0x28, 0x87, 0x4a, 0xe7, 0x1f, |
| 0x45, 0x46, 0x27, 0x52, 0x3b, 0x7f, 0x6f, 0xd2, |
| 0x29, 0xcb, 0xe8, 0x11, 0x19, 0x25, 0x35, 0x76, |
| 0x99, 0xcb, 0x4f, 0x1b, 0xe0, 0xed, 0x32, 0x9e, |
| 0x05, 0xb5, 0xbe, 0xd7, 0xf6, 0x5a, 0xb2, 0xf6, |
| 0x0e, 0x0c, 0x7e, 0xf5, 0xe1, 0x05, 0xfe, 0xda, |
| 0xaf, 0x0f, 0x27, 0x1e, 0x40, 0x2a, 0xf7, 0xa7, |
| 0x23, 0x49, 0x2c, 0xd9, 0x1b, 0x0a, 0xbe, 0xff, |
| 0xc7, 0x7c, 0x7d, 0x60, 0xca, 0xa3, 0x19, 0xc3, |
| 0xb7, 0xe4, 0x43, 0xb0, 0xf5, 0x75, 0x44, 0x90, |
| 0x46, 0x47, 0xb1, 0xa6, 0x48, 0x0b, 0x21, 0x8e, |
| 0xee, 0x75, 0xe6, 0x3d, 0xa7, 0xd3, 0x7b, 0x31, |
| 0xd1, 0xd2, 0x9d, 0xe2, 0x8a, 0xfc, 0x57, 0xfd, |
| 0x8a, 0x10, 0x31, 0xeb, 0x87, 0x36, 0x3f, 0x65, |
| 0x72, 0x23, 0x2c, 0xd3, 0xd6, 0x17, 0xa5, 0x62, |
| 0x58, 0x65, 0x57, 0x6a, 0xd4, 0xa8, 0xfe, 0xec, |
| 0x57, 0x76, 0x0c, 0xb1, 0x4c, 0x93, 0xed, 0xb0, |
| 0xb4, 0xf9, 0x45, 0xb3, 0x3e, 0xdd, 0x47, 0xf1, |
| 0xfb, 0x7d, 0x25, 0x79, 0x3d, 0xfc, 0xa7, 0x39, |
| 0x90, 0x68, 0x6a, 0x6b, 0xae, 0xf2, 0x6e, 0x64, |
| 0x8c, 0xfb, 0xb8, 0xdd, 0x76, 0x4e, 0x4a, 0x69, |
| 0x8c, 0x97, 0x15, 0x77, 0xb2, 0x67, 0xdc, 0xeb, |
| 0x4a, 0x40, 0x6b, 0xb9, 0x47, 0x8f, 0xa6, 0xab, |
| 0x6e, 0x98, 0xc0, 0x97, 0x9a, 0x0c, 0xea, 0x00, |
| 0xfd, 0x56, 0x1a, 0x74, 0x9a, 0x32, 0x6b, 0xfe, |
| 0xbd, 0xdf, 0x6c, 0x82, 0x54, 0x53, 0x4d, 0x70, |
| 0x65, 0xe3, 0x8b, 0x37, 0xb8, 0xe4, 0x70, 0x08, |
| 0xb7, 0x3b, 0x30, 0x27, 0xaf, 0x1c, 0x77, 0xf3, |
| 0x62, 0xd4, 0x9a, 0x59, 0xba, 0xd1, 0x6e, 0x89, |
| 0x5c, 0x34, 0x9a, 0xa1, 0xb7, 0x4f, 0x7d, 0x8c, |
| 0xdc, 0xbc, 0x74, 0x25, 0x5e, 0xbf, 0x77, 0x46 |
| }; |
| int expected_c = 1316; |
| int expected_h = 2; |
| |
| if (!TEST_ptr(p_in = BN_bin2bn(expected_p, sizeof(expected_p), NULL)) |
| || !TEST_ptr(q_in = BN_bin2bn(expected_q, sizeof(expected_q), NULL)) |
| || !TEST_ptr(g_in = BN_bin2bn(expected_g, sizeof(expected_g), NULL))) |
| goto end; |
| if (!TEST_ptr(pg_ctx = EVP_PKEY_CTX_new_from_name(NULL, "DSA", NULL)) |
| || !TEST_int_gt(EVP_PKEY_paramgen_init(pg_ctx), 0) |
| || !TEST_ptr_null(EVP_PKEY_CTX_gettable_params(pg_ctx)) |
| || !TEST_ptr(settables = EVP_PKEY_CTX_settable_params(pg_ctx)) |
| || !TEST_ptr(OSSL_PARAM_locate_const(settables, |
| OSSL_PKEY_PARAM_FFC_PBITS)) |
| || !TEST_true(EVP_PKEY_CTX_set_dsa_paramgen_type(pg_ctx, "fips186_4")) |
| || !TEST_true(EVP_PKEY_CTX_set_dsa_paramgen_bits(pg_ctx, 2048)) |
| || !TEST_true(EVP_PKEY_CTX_set_dsa_paramgen_q_bits(pg_ctx, 224)) |
| || !TEST_true(EVP_PKEY_CTX_set_dsa_paramgen_seed(pg_ctx, seed_data, |
| sizeof(seed_data))) |
| || !TEST_true(EVP_PKEY_CTX_set_dsa_paramgen_md_props(pg_ctx, "SHA256", |
| "")) |
| || !TEST_int_gt(EVP_PKEY_generate(pg_ctx, ¶m_key), 0) |
| || !TEST_ptr(kg_ctx = EVP_PKEY_CTX_new_from_pkey(NULL, param_key, NULL)) |
| || !TEST_int_gt(EVP_PKEY_keygen_init(kg_ctx), 0) |
| || !TEST_int_gt(EVP_PKEY_generate(kg_ctx, &key), 0)) |
| goto end; |
| |
| if (!TEST_true(EVP_PKEY_get_bn_param(key, OSSL_PKEY_PARAM_FFC_P, &p_out)) |
| || !TEST_BN_eq(p_in, p_out) |
| || !TEST_true(EVP_PKEY_get_bn_param(key, OSSL_PKEY_PARAM_FFC_Q, &q_out)) |
| || !TEST_BN_eq(q_in, q_out) |
| || !TEST_true(EVP_PKEY_get_bn_param(key, OSSL_PKEY_PARAM_FFC_G, &g_out)) |
| || !TEST_BN_eq(g_in, g_out) |
| || !TEST_true(EVP_PKEY_get_octet_string_param( |
| key, OSSL_PKEY_PARAM_FFC_SEED, seed_out, |
| sizeof(seed_out), &len)) |
| || !TEST_mem_eq(seed_out, len, seed_data, sizeof(seed_data)) |
| || !TEST_true(EVP_PKEY_get_int_param(key, OSSL_PKEY_PARAM_FFC_GINDEX, |
| &gindex_out)) |
| || !TEST_int_eq(gindex_out, -1) |
| || !TEST_true(EVP_PKEY_get_int_param(key, OSSL_PKEY_PARAM_FFC_H, |
| &hcount_out)) |
| || !TEST_int_eq(hcount_out, expected_h) |
| || !TEST_true(EVP_PKEY_get_int_param(key, |
| OSSL_PKEY_PARAM_FFC_PCOUNTER, |
| &pcount_out)) |
| || !TEST_int_eq(pcount_out, expected_c) |
| || !TEST_false(EVP_PKEY_get_utf8_string_param(key, |
| OSSL_PKEY_PARAM_GROUP_NAME, |
| group_out, |
| sizeof(group_out), &len))) |
| goto end; |
| ret = 1; |
| end: |
| BN_free(p_in); |
| BN_free(q_in); |
| BN_free(g_in); |
| BN_free(p_out); |
| BN_free(q_out); |
| BN_free(g_out); |
| EVP_PKEY_free(param_key); |
| EVP_PKEY_free(key); |
| EVP_PKEY_CTX_free(kg_ctx); |
| EVP_PKEY_CTX_free(pg_ctx); |
| return ret; |
| } |
| |
| static int test_dsa_default_paramgen_validate(int i) |
| { |
| int ret; |
| EVP_PKEY_CTX *gen_ctx = NULL; |
| EVP_PKEY_CTX *check_ctx = NULL; |
| EVP_PKEY *params = NULL; |
| |
| ret = TEST_ptr(gen_ctx = EVP_PKEY_CTX_new_from_name(NULL, "DSA", NULL)) |
| && TEST_int_gt(EVP_PKEY_paramgen_init(gen_ctx), 0) |
| && (i == 0 |
| || TEST_true(EVP_PKEY_CTX_set_dsa_paramgen_bits(gen_ctx, 512))) |
| && TEST_int_gt(EVP_PKEY_generate(gen_ctx, ¶ms), 0) |
| && TEST_ptr(check_ctx = EVP_PKEY_CTX_new_from_pkey(NULL, params, NULL)) |
| && TEST_int_gt(EVP_PKEY_param_check(check_ctx), 0); |
| |
| EVP_PKEY_free(params); |
| EVP_PKEY_CTX_free(check_ctx); |
| EVP_PKEY_CTX_free(gen_ctx); |
| return ret; |
| } |
| |
| #endif /* OPENSSL_NO_DSA */ |
| |
| int setup_tests(void) |
| { |
| #ifndef OPENSSL_NO_DSA |
| ADD_TEST(dsa_test); |
| ADD_TEST(dsa_keygen_test); |
| ADD_ALL_TESTS(test_dsa_default_paramgen_validate, 2); |
| #endif |
| return 1; |
| } |
