1*4882a593Smuzhiyun #include <stdio.h>
2*4882a593Smuzhiyun #include <stdlib.h>
3*4882a593Smuzhiyun #include <string.h>
4*4882a593Smuzhiyun #include <assert.h>
5*4882a593Smuzhiyun #include "des_core.h"
6*4882a593Smuzhiyun
rk_crypto_ecb128_encrypt(void * ctx,const unsigned char * in,unsigned long length,unsigned char * out,block128_f block)7*4882a593Smuzhiyun static int rk_crypto_ecb128_encrypt(void *ctx, const unsigned char *in, unsigned long length, unsigned char *out,block128_f block)
8*4882a593Smuzhiyun {
9*4882a593Smuzhiyun unsigned long i = 0;
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun for (i = 0; i < length / DES_BLOCK_SIZE; i++){
12*4882a593Smuzhiyun (*block)(in + i * DES_BLOCK_SIZE, out + i * DES_BLOCK_SIZE, ctx);
13*4882a593Smuzhiyun };
14*4882a593Smuzhiyun return 0;
15*4882a593Smuzhiyun }
16*4882a593Smuzhiyun
rk_des_ecb_encrypt(const unsigned char * in,unsigned char * out,unsigned long length,const unsigned char * key,const int key_len,const int enc)17*4882a593Smuzhiyun int rk_des_ecb_encrypt(const unsigned char *in, unsigned char *out,
18*4882a593Smuzhiyun unsigned long length, const unsigned char *key, const int key_len,
19*4882a593Smuzhiyun const int enc)
20*4882a593Smuzhiyun {
21*4882a593Smuzhiyun rk_des_context ctx;
22*4882a593Smuzhiyun rk_des3_context ctx3;
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun if(key_len != 8 && key_len != 16 && key_len != 24)
25*4882a593Smuzhiyun return -1;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun if(length%DES_BLOCK_SIZE)
28*4882a593Smuzhiyun return -1;
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun if (enc) {
31*4882a593Smuzhiyun switch(key_len){
32*4882a593Smuzhiyun case 8:
33*4882a593Smuzhiyun rk_des_setkey_enc(&ctx, key);
34*4882a593Smuzhiyun rk_crypto_ecb128_encrypt((void*)&ctx, in, length, out, rk_des_crypt_ecb);
35*4882a593Smuzhiyun break;
36*4882a593Smuzhiyun case 16:
37*4882a593Smuzhiyun rk_des3_set2key_enc(&ctx3, key);
38*4882a593Smuzhiyun rk_crypto_ecb128_encrypt((void*)&ctx3, in, length, out, rk_des3_crypt_ecb);
39*4882a593Smuzhiyun break;
40*4882a593Smuzhiyun case 24:
41*4882a593Smuzhiyun rk_des3_set3key_enc(&ctx3, key);
42*4882a593Smuzhiyun rk_crypto_ecb128_encrypt((void*)&ctx3, in, length, out, rk_des3_crypt_ecb);
43*4882a593Smuzhiyun break;
44*4882a593Smuzhiyun default:
45*4882a593Smuzhiyun return -1;
46*4882a593Smuzhiyun }
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun } else {
49*4882a593Smuzhiyun switch(key_len){
50*4882a593Smuzhiyun case 8:
51*4882a593Smuzhiyun rk_des_setkey_dec(&ctx, key);
52*4882a593Smuzhiyun rk_crypto_ecb128_encrypt((void*)&ctx, in, length, out, rk_des_crypt_ecb);
53*4882a593Smuzhiyun break;
54*4882a593Smuzhiyun case 16:
55*4882a593Smuzhiyun rk_des3_set2key_dec(&ctx3, key);
56*4882a593Smuzhiyun rk_crypto_ecb128_encrypt((void*)&ctx3, in, length, out, rk_des3_crypt_ecb);
57*4882a593Smuzhiyun break;
58*4882a593Smuzhiyun case 24:
59*4882a593Smuzhiyun rk_des3_set3key_dec(&ctx3, key);
60*4882a593Smuzhiyun rk_crypto_ecb128_encrypt((void*)&ctx3, in, length, out, rk_des3_crypt_ecb);
61*4882a593Smuzhiyun break;
62*4882a593Smuzhiyun default:
63*4882a593Smuzhiyun return -1;
64*4882a593Smuzhiyun }
65*4882a593Smuzhiyun }
66*4882a593Smuzhiyun return 0;
67*4882a593Smuzhiyun }
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun
70