Robert Sloan | 8ff0355 | 2017-06-14 12:40:58 -0700 | [diff] [blame^] | 1 | /* Copyright (c) 2017, Google Inc. |
| 2 | * |
| 3 | * Permission to use, copy, modify, and/or distribute this software for any |
| 4 | * purpose with or without fee is hereby granted, provided that the above |
| 5 | * copyright notice and this permission notice appear in all copies. |
| 6 | * |
| 7 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 8 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 9 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| 10 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 11 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| 12 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| 13 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ |
| 14 | |
| 15 | // cavp_rsa2_sigver_test processes NIST CAVP RSA2 SigVer test vector request |
| 16 | // files and emits the corresponding response. |
| 17 | |
| 18 | #include <vector> |
| 19 | |
| 20 | #include <openssl/bn.h> |
| 21 | #include <openssl/crypto.h> |
| 22 | #include <openssl/digest.h> |
| 23 | #include <openssl/err.h> |
| 24 | #include <openssl/rsa.h> |
| 25 | |
| 26 | #include "../crypto/internal.h" |
| 27 | #include "../crypto/test/file_test.h" |
| 28 | #include "cavp_test_util.h" |
| 29 | |
| 30 | |
| 31 | namespace { |
| 32 | |
| 33 | struct TestCtx { |
| 34 | std::vector<uint8_t> N; |
| 35 | bool is_pss; |
| 36 | }; |
| 37 | |
| 38 | } |
| 39 | |
| 40 | static bool TestRSA2SigVer(FileTest *t, void *arg) { |
| 41 | TestCtx *ctx = reinterpret_cast<TestCtx *>(arg); |
| 42 | |
| 43 | std::string mod_str; |
| 44 | if (!t->GetInstruction(&mod_str, "mod")) { |
| 45 | return false; |
| 46 | } |
| 47 | |
| 48 | printf("%s", t->CurrentTestToString().c_str()); |
| 49 | |
| 50 | if (t->HasAttribute("n")) { |
| 51 | printf("\r\n"); |
| 52 | return t->GetBytes(&ctx->N, "n"); |
| 53 | } |
| 54 | |
| 55 | std::string hash; |
| 56 | std::vector<uint8_t> e_bytes, msg, sig; |
| 57 | if (!t->GetAttribute(&hash, "SHAAlg") || |
| 58 | !t->GetBytes(&e_bytes, "e") || |
| 59 | !t->GetBytes(&msg, "Msg") || |
| 60 | !t->GetBytes(&sig, "S")) { |
| 61 | return false; |
| 62 | } |
| 63 | |
| 64 | bssl::UniquePtr<RSA> key(RSA_new()); |
| 65 | key->n = BN_new(); |
| 66 | key->e = BN_new(); |
| 67 | if (key == nullptr || |
| 68 | !BN_bin2bn(ctx->N.data(), ctx->N.size(), key->n) || |
| 69 | !BN_bin2bn(e_bytes.data(), e_bytes.size(), key->e)) { |
| 70 | return false; |
| 71 | } |
| 72 | |
| 73 | const EVP_MD *md = EVP_get_digestbyname(hash.c_str()); |
| 74 | uint8_t digest_buf[EVP_MAX_MD_SIZE]; |
| 75 | unsigned digest_len; |
| 76 | if (md == NULL || |
| 77 | !EVP_Digest(msg.data(), msg.size(), digest_buf, &digest_len, md, NULL)) { |
| 78 | return false; |
| 79 | } |
| 80 | |
| 81 | int ok; |
| 82 | if (ctx->is_pss) { |
| 83 | ok = RSA_verify_pss_mgf1(key.get(), digest_buf, digest_len, md, md, -1, |
| 84 | sig.data(), sig.size()); |
| 85 | } else { |
| 86 | ok = RSA_verify(EVP_MD_type(md), digest_buf, digest_len, sig.data(), |
| 87 | sig.size(), key.get()); |
| 88 | } |
| 89 | |
| 90 | if (ok) { |
| 91 | printf("Result = P\r\n\r\n"); |
| 92 | } else { |
| 93 | char buf[256]; |
| 94 | ERR_error_string_n(ERR_get_error(), buf, sizeof(buf)); |
| 95 | printf("Result = F (%s)\r\n\r\n", buf); |
| 96 | } |
| 97 | ERR_clear_error(); |
| 98 | return true; |
| 99 | } |
| 100 | |
| 101 | int cavp_rsa2_sigver_test_main(int argc, char **argv) { |
| 102 | if (argc != 3) { |
| 103 | fprintf(stderr, "usage: %s (pkcs15|pss) <test file>\n", |
| 104 | argv[0]); |
| 105 | return 1; |
| 106 | } |
| 107 | |
| 108 | TestCtx ctx; |
| 109 | if (strcmp(argv[1], "pkcs15") == 0) { |
| 110 | ctx = {std::vector<uint8_t>(), false}; |
| 111 | } else if (strcmp(argv[1], "pss") == 0) { |
| 112 | ctx = {std::vector<uint8_t>(), true}; |
| 113 | } else { |
| 114 | fprintf(stderr, "Unknown test type: %s\n", argv[1]); |
| 115 | return 1; |
| 116 | } |
| 117 | |
| 118 | FileTest::Options opts; |
| 119 | opts.path = argv[2]; |
| 120 | opts.callback = TestRSA2SigVer; |
| 121 | opts.arg = &ctx; |
| 122 | opts.silent = true; |
| 123 | opts.comment_callback = EchoComment; |
| 124 | return FileTestMain(opts); |
| 125 | } |