src/vsl_test_aes.c

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/*
 * Copyright 2006, Internet2
 * Legal conditions are in file LICENSE
 * (MD5 = c434f2e53b8089d8b4d0172c7ce07360).
 */

/**
 * @file   vsl_test_aes.c
 * @author Nikolaus Rath
 * @brief  Test AES CTR mode
 *
 **/


#include "vsl_util.h"
#include "vfer_tests.h"

/**
 * main
 */
int main (int argc, char** argv) {

    unsigned char plaintext[] = "This is the plaintext.";
    unsigned char key[] = "123456789012345";

    TEST_INIT("VSL_TEST_AES", "vsl_test_aes.c", stdout, stdout);

    /* Encrypt */
    uint64_t msgnr = htonll(42);
    unsigned char ctr[16];
    memset((void*) ctr, 0, 16);
    memcpy((void*) ctr, (void*) &msgnr, 8);
    unsigned char buf[sizeof(plaintext)];
    memcpy((void*) buf, (void*) &plaintext, sizeof(plaintext));
    aes_ctr(ctr, key, buf, sizeof(plaintext));

    /* Decrypt */
    memset((void*) ctr, 0, 16);
    memcpy((void*) ctr, (void*) &msgnr, 8);
    aes_ctr(ctr, key, buf, sizeof(plaintext));

    TEST_CHECK( (memcmp( (void*) &buf, (void*) &plaintext, sizeof(plaintext)) == 0),
                "decrypted text doesn't agree with plaintext.");

    TEST_SUMMARY();
}


/*
 * Local Variables:
 * compile-command: "cd ..; make vsl_test_aes"
 * compilation-search-path: ("..")
 * End:
 */

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