File content as of revision 0:9fca2b23d0ba:

/*
 * Copyright (c) 2013-2016, ARM Limited, All Rights Reserved
 * SPDX-License-Identifier: Apache-2.0
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include <stdio.h>
#include <string.h>
#include "mbed.h"
#include "greentea-client/test_env.h"
#include "unity/unity.h"
#include "utest/utest.h"

#include "mbedtls/sha256.h"


using namespace utest::v1;

#if defined(MBEDTLS_SHA256_C)
/* Tests several call to mbedtls_sha256_update function that are not modulo 64 bytes */
void test_case_sha256_split() {
  const unsigned char test_buf[] = {"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopqabcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopqabcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"};
  // sha256_output_values for 3*abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq
  const unsigned char test_sum[] =
  { 0x50, 0xEA, 0x82, 0x5D, 0x96, 0x84, 0xF4, 0x22,
    0x9C, 0xA2, 0x9F, 0x1F, 0xEC, 0x51, 0x15, 0x93,
    0xE2, 0x81, 0xE4, 0x6A, 0x14, 0x0D, 0x81, 0xE0,
    0x00, 0x5F, 0x8F, 0x68, 0x86, 0x69, 0xA0, 0x6C};
  unsigned char outsum[32];
  int i;

  mbedtls_sha256_context ctx;
  printf("test sha256\n");
  mbedtls_sha256_init( &ctx );
  mbedtls_sha256_starts( &ctx, 0);
  #if 0
    printf("test not splitted\n");
    mbedtls_sha256_update( &ctx, test_buf, 168 );
  #else
    printf("test splitted into 3 pieces\n");
    mbedtls_sha256_update( &ctx, test_buf, 2 );
    mbedtls_sha256_update( &ctx, test_buf+2, 66 );
    mbedtls_sha256_update( &ctx, test_buf+68, 100 );
  #endif
  
    mbedtls_sha256_finish( &ctx, outsum );
    mbedtls_sha256_free( &ctx );
  
    printf("\nreceived result : ");
    for (i=0;i<32;i++) { printf("%02X",outsum[i]);}
    printf("\nawaited result  : 50EA825D9684F4229CA29F1FEC511593E281E46A140D81E0005F8F688669A06C\n"); // for  abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq
  
    printf("\nend of test sha256\n");
  TEST_ASSERT_EQUAL_UINT8_ARRAY(outsum, test_sum,32);
}

/* Tests that treating 2 sha256 objects in // does not impact the result */
void test_case_sha256_multi() {
    const unsigned char test_buf[] = {"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopqabcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopqabcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"};
    const unsigned char test_buf2[] = {"abcdefghijklmnopqrstuvwxyz012345678901234567890123456789"};

    // sha256_output_values for abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq
    const unsigned char test_sum1[] =
    { 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8,
      0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39,
      0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67,
      0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 };
    // sha256_output_values for 3*abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq
    const unsigned char test_sum2[] =
    { 0x50, 0xEA, 0x82, 0x5D, 0x96, 0x84, 0xF4, 0x22,
      0x9C, 0xA2, 0x9F, 0x1F, 0xEC, 0x51, 0x15, 0x93,
      0xE2, 0x81, 0xE4, 0x6A, 0x14, 0x0D, 0x81, 0xE0,
      0x00, 0x5F, 0x8F, 0x68, 0x86, 0x69, 0xA0, 0x6C};
    // sha256_output_values for abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopqabcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopqabcdefghijklmnopqrstuvwxyz012345678901234567890123456789
    const unsigned char test_sum3[] =
    { 0x6D, 0x5D, 0xDB, 0x5F, 0x4A, 0x94, 0xAB, 0x7E,
      0x5C, 0xF7, 0x9A, 0xD8, 0x3F, 0x58, 0xD3, 0x97,
      0xFE, 0x79, 0xFB, 0x0D, 0x79, 0xB2, 0x0D, 0x22,
      0xFF, 0x95, 0x9F, 0x04, 0xA2, 0xE4, 0x6C, 0x68};
    unsigned char outsum1[32], outsum2[32], outsum3[32];
    int i;

    mbedtls_sha256_context ctx1;
    mbedtls_sha256_context ctx2;
    mbedtls_sha256_context ctx3;
    printf("test sha256_multi\n");
    //Init both contexts
    mbedtls_sha256_init( &ctx1);
    mbedtls_sha256_init( &ctx2);
    mbedtls_sha256_init( &ctx3);
    //Start both contexts
    mbedtls_sha256_starts( &ctx1, 0);
    mbedtls_sha256_starts( &ctx2, 0);

    printf("upd ctx1\n");
    mbedtls_sha256_update( &ctx1, test_buf, 56 );
    printf("upd ctx2\n");
    mbedtls_sha256_update( &ctx2, test_buf, 66 );
    printf("finish ctx1\n");
    mbedtls_sha256_finish( &ctx1, outsum1 );
    printf("upd ctx2\n");
    mbedtls_sha256_update( &ctx2, test_buf+66, 46 );
    printf("clone ctx2 in ctx3\n");
    mbedtls_sha256_clone(&ctx3, (const mbedtls_sha256_context *)&ctx2);
    printf("free ctx1\n");
    mbedtls_sha256_free( &ctx1 );
    printf("upd ctx2\n");
    mbedtls_sha256_update( &ctx2, test_buf+112, 56 );
    printf("upd ctx3 with different values than ctx2\n");
    mbedtls_sha256_update( &ctx3, test_buf2, 56 );
    printf("finish ctx2\n");
    mbedtls_sha256_finish( &ctx2, outsum2 );
    printf("finish ctx3\n");
    mbedtls_sha256_finish( &ctx3, outsum3 );
    printf("free ctx2\n");
    mbedtls_sha256_free( &ctx2 );
    printf("free ctx3\n");
    mbedtls_sha256_free( &ctx3 );

    printf("\nreceived result ctx1 : ");
    for (i=0;i<32;i++) { printf("%02X",outsum1[i]);}
    printf("\nawaited result       : 248D6A61D20638B8E5C026930C3E6039A33CE45964FF216F6ECEDD19DB06C1\n"); // for  abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq
    printf("\nreceived result ctx2 : ");
    for (i=0;i<32;i++) { printf("%02X",outsum2[i]);}
    printf("\nawaited result       : 50EA825D9684F4229CA29F1FEC511593E281E46A140D81E0005F8F688669A06C\n"); // for  3*abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq
    printf("\nreceived result ctx3 : ");
    for (i=0;i<32;i++) { printf("%02X",outsum3[i]);}
    printf("\nawaited result       : 6D5DDB5F4A94AB7E5CF79AD83F58D397FE79FB0D79B20D22FF959F04A2E46C68\n"); // for 2*abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq+3*0123456789
    printf("\nend of test sha256\n");
    TEST_ASSERT_EQUAL_UINT8_ARRAY(outsum1, test_sum1,32);
    TEST_ASSERT_EQUAL_UINT8_ARRAY(outsum2, test_sum2,32);
    TEST_ASSERT_EQUAL_UINT8_ARRAY(outsum3, test_sum3,32);
}
#endif //MBEDTLS_SHA256_C

utest::v1::status_t greentea_failure_handler(const Case *const source, const failure_t reason) {
    greentea_case_failure_abort_handler(source, reason);
    return STATUS_CONTINUE;
}

Case cases[] = {
#if defined(MBEDTLS_SHA256_C)
    Case("Crypto: sha256_split", test_case_sha256_split, greentea_failure_handler),
    Case("Crypto: sha256_multi", test_case_sha256_multi, greentea_failure_handler),
#endif
};

utest::v1::status_t greentea_test_setup(const size_t number_of_cases) {
    GREENTEA_SETUP(10, "default_auto");
    return greentea_test_setup_handler(number_of_cases);
}

Specification specification(greentea_test_setup, cases, greentea_test_teardown_handler);

int main() {
    Harness::run(specification);
}