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_sha_test processes a NIST CAVP SHA test vector request file and emits 16 // the corresponding response. 17 18 #include <stdlib.h> 19 20 #include <openssl/crypto.h> 21 #include <openssl/digest.h> 22 23 #include "../crypto/test/file_test.h" 24 #include "cavp_test_util.h" 25 26 namespace { 27 28 struct TestCtx { 29 std::string hash; 30 }; 31 32 } 33 34 static bool TestSHA(FileTest *t, void *arg) { 35 TestCtx *ctx = reinterpret_cast<TestCtx *>(arg); 36 37 const EVP_MD *md = EVP_get_digestbyname(ctx->hash.c_str()); 38 if (md == nullptr) { 39 return false; 40 } 41 const size_t md_len = EVP_MD_size(md); 42 43 std::string out_len; 44 if (!t->GetInstruction(&out_len, "L") || 45 md_len != strtoul(out_len.c_str(), nullptr, 0)) { 46 return false; 47 } 48 49 std::string msg_len_str; 50 std::vector<uint8_t> msg; 51 if (!t->GetAttribute(&msg_len_str, "Len") || 52 !t->GetBytes(&msg, "Msg")) { 53 return false; 54 } 55 56 size_t msg_len = strtoul(msg_len_str.c_str(), nullptr, 0); 57 if (msg_len % 8 != 0 || 58 msg_len / 8 > msg.size()) { 59 return false; 60 } 61 msg_len /= 8; 62 63 std::vector<uint8_t> out; 64 out.resize(md_len); 65 unsigned digest_len; 66 if (!EVP_Digest(msg.data(), msg_len, out.data(), &digest_len, md, nullptr) || 67 digest_len != out.size()) { 68 return false; 69 } 70 71 printf("%s", t->CurrentTestToString().c_str()); 72 printf("MD = %s\r\n\r\n", EncodeHex(out.data(), out.size()).c_str()); 73 74 return true; 75 } 76 77 static int usage(char *arg) { 78 fprintf(stderr, "usage: %s <hash> <test file>\n", arg); 79 return 1; 80 } 81 82 int cavp_sha_test_main(int argc, char **argv) { 83 if (argc != 3) { 84 return usage(argv[0]); 85 } 86 87 TestCtx ctx = {std::string(argv[1])}; 88 89 FileTest::Options opts; 90 opts.path = argv[2]; 91 opts.callback = TestSHA; 92 opts.arg = &ctx; 93 opts.silent = true; 94 opts.comment_callback = EchoComment; 95 return FileTestMain(opts); 96 } 97
