6 #include "twister-small.h"
8 /*********************************************************************/
10 void twister_small_init(twister_state_t* ctx, uint16_t hashsize_b){
11 memset(ctx->s, 0, 64);
12 ctx->counter=0xffffffffffffffffLL;
13 ctx->s[0][7] = hashsize_b>>8;
14 ctx->s[1][7] = hashsize_b&0xff;
15 ctx->length_counter_b = 0;
18 /*********************************************************************/
20 void twister_small_nextBlock(twister_state_t* ctx, void* msg){
23 memcpy(tmp, ctx->s, 64);
24 twister_mini_round(ctx, msg);
25 msg = ((uint8_t*)msg) + 8;
26 twister_mini_round(ctx, msg);
27 msg = ((uint8_t*)msg) + 8;
28 twister_mini_round(ctx, msg);
29 msg = ((uint8_t*)msg) + 8;
30 memxor(ctx->s, tmp, 64);
33 memcpy(tmp, ctx->s, 64);
34 twister_mini_round(ctx, msg);
35 msg = ((uint8_t*)msg) + 8;
36 twister_mini_round(ctx, msg);
37 msg = ((uint8_t*)msg) + 8;
38 twister_mini_round(ctx, msg);
39 msg = ((uint8_t*)msg) + 8;
40 memxor(ctx->s, tmp, 64);
43 memcpy(tmp, ctx->s, 64);
44 twister_mini_round(ctx, msg);
45 msg = ((uint8_t*)msg) + 8;
46 twister_mini_round(ctx, msg);
47 twister_blank_round(ctx);
48 memxor(ctx->s, tmp, 64);
49 ctx->length_counter_b += 512;
52 /*********************************************************************/
54 void twister_small_lastBlock(twister_state_t* ctx, void* msg, uint16_t length_b){
58 twister_small_nextBlock(ctx, msg);
59 msg = ((uint8_t*)msg)+64;
63 memcpy(tmp, msg, (length_b+7)/8);
64 tmp[length_b/8] |= 0x80 >> (length_b&0x07);
65 twister_small_nextBlock(ctx, tmp);
66 ctx->length_counter_b -= 512 - length_b;
68 twister_mini_round(ctx, &(ctx->length_counter_b));
69 twister_blank_round(ctx);
72 /*********************************************************************/
74 void twister_small_ctx2hash(void* dest, twister_state_t* ctx, uint16_t hashsize_b){
75 twister_ctx2hash(dest, ctx, hashsize_b);
78 /*********************************************************************/
79 /*********************************************************************/
81 #ifndef NO_TWISTER_256
83 void twister256_init(twister256_ctx_t* ctx){
84 twister_small_init(ctx, 256);
87 /*********************************************************************/
89 void twister256_nextBlock(twister256_ctx_t* ctx, void* msg){
90 twister_small_nextBlock(ctx, msg);
93 /*********************************************************************/
95 void twister256_lastBlock(twister256_ctx_t* ctx, void* msg, uint16_t length_b){
96 twister_small_lastBlock(ctx, msg, length_b);
99 /*********************************************************************/
101 void twister256_ctx2hash(void* dest, twister256_ctx_t* ctx){
102 twister_ctx2hash(dest, ctx, 256);
105 /*********************************************************************/
107 void twister256(void* dest, void* msg, uint32_t msg_length_b){
109 twister_small_init(&ctx, 256);
110 while(msg_length_b >=512){
111 twister_small_nextBlock(&ctx, msg);
112 msg = (uint8_t*)msg + 512/8;
115 twister_small_lastBlock(&ctx, msg, msg_length_b);
116 twister_ctx2hash(dest, &ctx, 256);
119 /*********************************************************************/
123 /*********************************************************************/
124 /*********************************************************************/
126 #ifndef NO_TWISTER_224
128 void twister224_init(twister224_ctx_t* ctx){
129 twister_small_init(ctx, 224);
132 /*********************************************************************/
134 void twister224_nextBlock(twister224_ctx_t* ctx, void* msg){
135 twister_small_nextBlock(ctx, msg);
138 /*********************************************************************/
140 void twister224_lastBlock(twister224_ctx_t* ctx, void* msg, uint16_t length_b){
141 twister_small_lastBlock(ctx, msg, length_b);
144 /*********************************************************************/
146 void twister224_ctx2hash(void* dest, twister224_ctx_t* ctx){
147 twister_ctx2hash(dest, ctx, 224);
150 /*********************************************************************/
152 void twister224(void* dest, void* msg, uint32_t msg_length_b){
154 twister_small_init(&ctx, 224);
155 while(msg_length_b >=512){
156 twister_small_nextBlock(&ctx, msg);
157 msg = (uint8_t*)msg + 512/8;
160 twister_small_lastBlock(&ctx, msg, msg_length_b);
161 twister_ctx2hash(dest, &ctx, 224);