test_des.h File Reference

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Functions
int	test_des (void)

Function Documentation

test_des()

int test_des

(

void

)

Definition at line 180 of file test_des.c.

{
        int i, j;
        unsigned char key[8], plain[8], crypt[8], buffer[8];
        unsigned char cbc_buffer[32], cbc_iv_buf[8];
 
        printf
            ("Testing DES in ECB mode .................................................. ");
        fflush(stdout);
        for (i = 0; i < NUM_TESTS; i++) {
                for (j = 0; j < 8; j++) {
                        key[j] = key_data[i][j];
                        plain[j] = plain_data[i][j];
                        crypt[j] = crypt_data[i][j];
                }
                memcpy(buffer, crypt, 8);
                qfDES_ECB_d(key, buffer, 8);
                if (memcmp(buffer, plain, 8) != 0) {
                        printf("FAIL\n");
                        goto abort_ecb;
                }
                memcpy(buffer, plain, 8);
                qfDES_ECB_e(key, buffer, 8);
                if (memcmp(buffer, crypt, 8) != 0) {
                        printf("FAIL\n");
                        goto abort_ecb;
                }
                qfDES_ECB_d(key, buffer, 8);
                if (memcmp(buffer, plain, 8) != 0) {
                        printf("FAIL\n");
                        goto abort_ecb;
                }
        }
        printf("Ok\n");
 abort_ecb:
 
        printf
            ("Testing DES in CBC mode .................................................. ");
        fflush(stdout);
        memcpy(cbc_buffer, cbc_data, 32);
        memcpy(cbc_iv_buf, cbc_iv, 8);
        qfDES_CBC_e(cbc_key, cbc_buffer, 32, cbc_iv_buf);
        if (memcmp(cbc_buffer, cbc_ok, 32) != 0) {
                printf("FAIL\n");
                return -1;
        }
        memcpy(cbc_iv_buf, cbc_iv, 8);
        qfDES_CBC_d(cbc_key, cbc_buffer, 32, cbc_iv_buf);
        if (memcmp(cbc_buffer, cbc_data, 32) != 0) {
                printf("FAIL\n");
                return -1;
        }
        printf("Ok\n");
        return 0;
}

References cbc_data, cbc_iv, cbc_key, cbc_ok, crypt_data, key, key_data, NUM_TESTS, plain_data, qfDES_CBC_d, qfDES_CBC_e, qfDES_ECB_d, and qfDES_ECB_e.