61 lines
2.4 KiB
C
61 lines
2.4 KiB
C
/*********************************************************************
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* Filename: sha256.c
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* Author: Brad Conte (brad AT bradconte.com)
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* Copyright:
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* Disclaimer: This code is presented "as is" without any guarantees.
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* Details: Performs known-answer tests on the corresponding SHA1
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implementation. These tests do not encompass the full
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range of available test vectors, however, if the tests
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pass it is very, very likely that the code is correct
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and was compiled properly. This code also serves as
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example usage of the functions.
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*********************************************************************/
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/*************************** HEADER FILES ***************************/
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#include <stdio.h>
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#include <memory.h>
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#include <string.h>
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#include "sha256.h"
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/*********************** FUNCTION DEFINITIONS ***********************/
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int sha256_test()
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{
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BYTE text1[] = {"abc"};
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BYTE text2[] = {"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"};
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BYTE text3[] = {"aaaaaaaaaa"};
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BYTE hash1[SHA256_BLOCK_SIZE] = {0xba,0x78,0x16,0xbf,0x8f,0x01,0xcf,0xea,0x41,0x41,0x40,0xde,0x5d,0xae,0x22,0x23,
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0xb0,0x03,0x61,0xa3,0x96,0x17,0x7a,0x9c,0xb4,0x10,0xff,0x61,0xf2,0x00,0x15,0xad};
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BYTE hash2[SHA256_BLOCK_SIZE] = {0x24,0x8d,0x6a,0x61,0xd2,0x06,0x38,0xb8,0xe5,0xc0,0x26,0x93,0x0c,0x3e,0x60,0x39,
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0xa3,0x3c,0xe4,0x59,0x64,0xff,0x21,0x67,0xf6,0xec,0xed,0xd4,0x19,0xdb,0x06,0xc1};
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BYTE hash3[SHA256_BLOCK_SIZE] = {0xcd,0xc7,0x6e,0x5c,0x99,0x14,0xfb,0x92,0x81,0xa1,0xc7,0xe2,0x84,0xd7,0x3e,0x67,
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0xf1,0x80,0x9a,0x48,0xa4,0x97,0x20,0x0e,0x04,0x6d,0x39,0xcc,0xc7,0x11,0x2c,0xd0};
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BYTE buf[SHA256_BLOCK_SIZE];
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SHA256_CTX ctx;
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int idx;
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int pass = 1;
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sha256_init(&ctx);
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sha256_update(&ctx, text1, strlen(text1));
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sha256_final(&ctx, buf);
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pass = pass && !memcmp(hash1, buf, SHA256_BLOCK_SIZE);
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sha256_init(&ctx);
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sha256_update(&ctx, text2, strlen(text2));
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sha256_final(&ctx, buf);
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pass = pass && !memcmp(hash2, buf, SHA256_BLOCK_SIZE);
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sha256_init(&ctx);
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for (idx = 0; idx < 100000; ++idx)
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sha256_update(&ctx, text3, strlen(text3));
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sha256_final(&ctx, buf);
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pass = pass && !memcmp(hash3, buf, SHA256_BLOCK_SIZE);
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return(pass);
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}
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int main()
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{
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printf("SHA-256 tests: %s\n", sha256_test() ? "SUCCEEDED" : "FAILEd");
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return(0);
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}
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