/*
 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "../e_os.h"

#ifdef OPENSSL_NO_RC4
int main(int argc, char *argv[])
{
    printf("No RC4 support\n");
    return (0);
}
#else
# include <openssl/rc4.h>
# include <openssl/sha.h>

static unsigned char keys[7][30] = {
    {8, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef},
    {8, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef},
    {8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
    {4, 0xef, 0x01, 0x23, 0x45},
    {8, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef},
    {4, 0xef, 0x01, 0x23, 0x45},
};

static unsigned char data_len[7] = { 8, 8, 8, 20, 28, 10 };

static unsigned char data[7][30] = {
    {0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef, 0xff},
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff},
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff},
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0xff},
    {0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
     0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
     0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
     0x12, 0x34, 0x56, 0x78, 0xff},
    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff},
    {0},
};

static unsigned char output[7][30] = {
    {0x75, 0xb7, 0x87, 0x80, 0x99, 0xe0, 0xc5, 0x96, 0x00},
    {0x74, 0x94, 0xc2, 0xe7, 0x10, 0x4b, 0x08, 0x79, 0x00},
    {0xde, 0x18, 0x89, 0x41, 0xa3, 0x37, 0x5d, 0x3a, 0x00},
    {0xd6, 0xa1, 0x41, 0xa7, 0xec, 0x3c, 0x38, 0xdf,
     0xbd, 0x61, 0x5a, 0x11, 0x62, 0xe1, 0xc7, 0xba,
     0x36, 0xb6, 0x78, 0x58, 0x00},
    {0x66, 0xa0, 0x94, 0x9f, 0x8a, 0xf7, 0xd6, 0x89,
     0x1f, 0x7f, 0x83, 0x2b, 0xa8, 0x33, 0xc0, 0x0c,
     0x89, 0x2e, 0xbe, 0x30, 0x14, 0x3c, 0xe2, 0x87,
     0x40, 0x01, 0x1e, 0xcf, 0x00},
    {0xd6, 0xa1, 0x41, 0xa7, 0xec, 0x3c, 0x38, 0xdf, 0xbd, 0x61, 0x00},
    {0},
};

int main(int argc, char *argv[])
{
    int i, err = 0;
    int j;
    unsigned char *p;
    RC4_KEY key;
    unsigned char obuf[512];

    for (i = 0; i < 6; i++) {
        RC4_set_key(&key, keys[i][0], &(keys[i][1]));
        memset(obuf, 0, sizeof(obuf));
        RC4(&key, data_len[i], &(data[i][0]), obuf);
        if (memcmp(obuf, output[i], data_len[i] + 1) != 0) {
            printf("error calculating RC4\n");
            printf("output:");
            for (j = 0; j < data_len[i] + 1; j++)
                printf(" %02x", obuf[j]);
            printf("\n");
            printf("expect:");
            p = &(output[i][0]);
            for (j = 0; j < data_len[i] + 1; j++)
                printf(" %02x", *(p++));
            printf("\n");
            err++;
        } else
            printf("test %d ok\n", i);
    }
    printf("test end processing ");
    for (i = 0; i < data_len[3]; i++) {
        RC4_set_key(&key, keys[3][0], &(keys[3][1]));
        memset(obuf, 0, sizeof(obuf));
        RC4(&key, i, &(data[3][0]), obuf);
        if ((memcmp(obuf, output[3], i) != 0) || (obuf[i] != 0)) {
            printf("error in RC4 length processing\n");
            printf("output:");
            for (j = 0; j < i + 1; j++)
                printf(" %02x", obuf[j]);
            printf("\n");
            printf("expect:");
            p = &(output[3][0]);
            for (j = 0; j < i; j++)
                printf(" %02x", *(p++));
            printf(" 00\n");
            err++;
        } else {
            printf(".");
            fflush(stdout);
        }
    }
    printf("done\n");
    printf("test multi-call ");
    for (i = 0; i < data_len[3]; i++) {
        RC4_set_key(&key, keys[3][0], &(keys[3][1]));
        memset(obuf, 0, sizeof(obuf));
        RC4(&key, i, &(data[3][0]), obuf);
        RC4(&key, data_len[3] - i, &(data[3][i]), &(obuf[i]));
        if (memcmp(obuf, output[3], data_len[3] + 1) != 0) {
            printf("error in RC4 multi-call processing\n");
            printf("output:");
            for (j = 0; j < data_len[3] + 1; j++)
                printf(" %02x", obuf[j]);
            printf("\n");
            printf("expect:");
            p = &(output[3][0]);
            for (j = 0; j < data_len[3] + 1; j++)
                printf(" %02x", *(p++));
            err++;
        } else {
            printf(".");
            fflush(stdout);
        }
    }
    printf("done\n");
    printf("bulk test ");
    {
        unsigned char buf[513];
        SHA_CTX c;
        unsigned char md[SHA_DIGEST_LENGTH];
        static unsigned char expected[] = {
            0xa4, 0x7b, 0xcc, 0x00, 0x3d, 0xd0, 0xbd, 0xe1, 0xac, 0x5f,
            0x12, 0x1e, 0x45, 0xbc, 0xfb, 0x1a, 0xa1, 0xf2, 0x7f, 0xc5
        };

        RC4_set_key(&key, keys[0][0], &(keys[3][1]));
        memset(buf, 0, sizeof(buf));
        SHA1_Init(&c);
        for (i = 0; i < 2571; i++) {
            RC4(&key, sizeof(buf), buf, buf);
            SHA1_Update(&c, buf, sizeof(buf));
        }
        SHA1_Final(md, &c);

        if (memcmp(md, expected, sizeof(md))) {
            printf("error in RC4 bulk test\n");
            printf("output:");
            for (j = 0; j < (int)sizeof(md); j++)
                printf(" %02x", md[j]);
            printf("\n");
            printf("expect:");
            for (j = 0; j < (int)sizeof(md); j++)
                printf(" %02x", expected[j]);
            printf("\n");
            err++;
        } else
            printf("ok\n");
    }
    EXIT(err);
}
#endif