| 1 | /*
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| 2 | * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | /*
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| 11 | * MDC2 low level APIs are deprecated for public use, but still ok for
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| 12 | * internal use.
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| 13 | */
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| 14 | #include "internal/deprecated.h"
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| 15 |
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| 16 | #include <string.h>
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| 17 | #include <openssl/provider.h>
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| 18 | #include <openssl/params.h>
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| 19 | #include <openssl/types.h>
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| 20 | #include <openssl/core_names.h>
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| 21 | #include "testutil.h"
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| 22 |
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| 23 | #if defined(OPENSSL_NO_DES) && !defined(OPENSSL_NO_MDC2)
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| 24 | # define OPENSSL_NO_MDC2
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| 25 | #endif
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| 26 |
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| 27 | #ifndef OPENSSL_NO_MDC2
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| 28 | # include <openssl/evp.h>
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| 29 | # include <openssl/mdc2.h>
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| 30 |
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| 31 | # ifdef CHARSET_EBCDIC
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| 32 | # include <openssl/ebcdic.h>
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| 33 | # endif
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| 34 |
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| 35 | static unsigned char pad1[16] = {
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| 36 | 0x42, 0xE5, 0x0C, 0xD2, 0x24, 0xBA, 0xCE, 0xBA,
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| 37 | 0x76, 0x0B, 0xDD, 0x2B, 0xD4, 0x09, 0x28, 0x1A
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| 38 | };
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| 39 |
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| 40 | static unsigned char pad2[16] = {
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| 41 | 0x2E, 0x46, 0x79, 0xB5, 0xAD, 0xD9, 0xCA, 0x75,
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| 42 | 0x35, 0xD8, 0x7A, 0xFE, 0xAB, 0x33, 0xBE, 0xE2
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| 43 | };
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| 44 |
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| 45 | static int test_mdc2(void)
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| 46 | {
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| 47 | int testresult = 0;
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| 48 | unsigned int pad_type = 2;
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| 49 | unsigned char md[MDC2_DIGEST_LENGTH];
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| 50 | EVP_MD_CTX *c;
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| 51 | static char text[] = "Now is the time for all ";
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| 52 | size_t tlen = strlen(text), i = 0;
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| 53 | OSSL_PROVIDER *prov = NULL;
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| 54 | OSSL_PARAM params[2];
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| 55 |
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| 56 | params[i++] = OSSL_PARAM_construct_uint(OSSL_DIGEST_PARAM_PAD_TYPE,
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| 57 | &pad_type),
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| 58 | params[i++] = OSSL_PARAM_construct_end();
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| 59 |
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| 60 | prov = OSSL_PROVIDER_load(NULL, "legacy");
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| 61 | # ifdef CHARSET_EBCDIC
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| 62 | ebcdic2ascii(text, text, tlen);
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| 63 | # endif
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| 64 |
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| 65 | c = EVP_MD_CTX_new();
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| 66 | if (!TEST_ptr(c)
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| 67 | || !TEST_true(EVP_DigestInit_ex(c, EVP_mdc2(), NULL))
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| 68 | || !TEST_true(EVP_DigestUpdate(c, (unsigned char *)text, tlen))
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| 69 | || !TEST_true(EVP_DigestFinal_ex(c, &(md[0]), NULL))
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| 70 | || !TEST_mem_eq(md, MDC2_DIGEST_LENGTH, pad1, MDC2_DIGEST_LENGTH)
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| 71 | || !TEST_true(EVP_DigestInit_ex(c, EVP_mdc2(), NULL)))
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| 72 | goto end;
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| 73 |
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| 74 | if (!TEST_int_gt(EVP_MD_CTX_set_params(c, params), 0)
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| 75 | || !TEST_true(EVP_DigestUpdate(c, (unsigned char *)text, tlen))
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| 76 | || !TEST_true(EVP_DigestFinal_ex(c, &(md[0]), NULL))
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| 77 | || !TEST_mem_eq(md, MDC2_DIGEST_LENGTH, pad2, MDC2_DIGEST_LENGTH))
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| 78 | goto end;
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| 79 |
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| 80 | testresult = 1;
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| 81 | end:
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| 82 | EVP_MD_CTX_free(c);
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| 83 | OSSL_PROVIDER_unload(prov);
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| 84 | return testresult;
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| 85 | }
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| 86 | #endif
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| 87 |
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| 88 | int setup_tests(void)
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| 89 | {
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| 90 | #ifndef OPENSSL_NO_MDC2
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| 91 | ADD_TEST(test_mdc2);
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| 92 | #endif
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| 93 | return 1;
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| 94 | }
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