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Update speck.c

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laiwei360735
2017-06-24 00:59:31 +08:00
committed by GitHub
parent f5a58496d9
commit 6ab32ba9d5
1 changed files with 125 additions and 40 deletions
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165
crypto/speck/speck.c
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@@ -49,61 +49,146 @@
#include <openssl/speck.h>
#define ROR(x, r) ((x >> r) | (x << ((sizeof(SPECK_TYPE) * 8) - r)))//循环右移
#define ROL(x, r) ((x << r) | (x >> ((sizeof(SPECK_TYPE) * 8) - r)))//循环左移
#ifdef SPECK_32_64
#define R(x, y, k) (x = ROR(x, 7), x += y, x ^= k, y = ROL(y, 2), y ^= x)
#define RR(x, y, k) (y ^= x, y = ROR(y, 2), x ^= k, x -= y, x = ROL(x, 7))
#else
#define R(x, y, k) (x = ROR(x, 8), x += y, x ^= k, y = ROL(y, 3), y ^= x)
#define RR(x, y, k) (y ^= x, y = ROR(y, 3), x ^= k, x -= y, x = ROL(x, 8))
#endif
void speck_set_encrypt_key(speck_key_t *key, const unsigned char *user_key)
void speck_set_encrypt_key16(SPECK_TYPE16 const K[SPECK_KEY_LEN16], SPECK_TYPE16 S[SPECK_ROUNDS16])
{
int i;
for (i = 0; i < num_word; i++)
{
if (user_key[i] == '\0')
break;
key->rk[i] = user_key[i];
}
int j = 0;
for (; i < num_word; i++)
{
key->rk[i] = user_key[j++];
}
}
void speck_expand(SPECK_TYPE const K[ SPECK_KEY_LEN], SPECK_TYPE S[ SPECK_ROUNDS])
{
SPECK_TYPE i, b = K[0];
SPECK_TYPE a[SPECK_KEY_LEN - 1];
for (i = 0; i < (SPECK_KEY_LEN - 1); i++)
SPECK_TYPE16 i, b = K[0];
SPECK_TYPE16 a[SPECK_KEY_LEN16 - 1];
for (i = 0; i < (SPECK_KEY_LEN16 - 1); i++)
{
a[i] = K[i + 1];
}
S[0] = b;
for (i = 0; i < SPECK_ROUNDS - 1; i++) {
R(a[i % (SPECK_KEY_LEN - 1)], b, i);
for (i = 0; i < SPECK_ROUNDS16 - 1; i++) {
R16(a[i % (SPECK_KEY_LEN16 - 1)], b, i);
S[i + 1] = b;
}
}
void speck_encrypt(SPECK_TYPE const pt[ 2], SPECK_TYPE ct[ 2], SPECK_TYPE const K[ SPECK_ROUNDS])
void speck_set_decrypt_key16(SPECK_TYPE16 const K[SPECK_KEY_LEN16], SPECK_TYPE16 S[SPECK_ROUNDS16])
{
SPECK_TYPE i;
SPECK_TYPE16 i, b = K[0];
SPECK_TYPE16 a[SPECK_KEY_LEN16 - 1];
for (i = 0; i < (SPECK_KEY_LEN16 - 1); i++)
{
a[i] = K[i + 1];
}
S[0] = b;
for (i = 0; i < SPECK_ROUNDS16 - 1; i++) {
R16(a[i % (SPECK_KEY_LEN16 - 1)], b, i);
S[i + 1] = b;
}
}
void speck_encrypt16(SPECK_TYPE16 const pt[2], SPECK_TYPE16 ct[2], SPECK_TYPE16 const K[SPECK_ROUNDS16])
{
SPECK_TYPE16 i;
ct[0] = pt[0]; ct[1] = pt[1];
for (i = 0; i < SPECK_ROUNDS; i++){
R(ct[1], ct[0], K[i]);
for (i = 0; i < SPECK_ROUNDS16; i++){
R16(ct[1], ct[0], K[i]);
}
}
void speck_decrypt(SPECK_TYPE const ct[ 2], SPECK_TYPE pt[ 2], SPECK_TYPE const K[ SPECK_ROUNDS])
void speck_decrypt16(SPECK_TYPE16 const ct[2], SPECK_TYPE16 pt[2], SPECK_TYPE16 const K[SPECK_ROUNDS16])
{
SPECK_TYPE i;
SPECK_TYPE16 i;
pt[0] = ct[0]; pt[1] = ct[1];
for (i = 0; i < SPECK_ROUNDS; i++){
RR(pt[1], pt[0], K[(SPECK_ROUNDS - 1) - i]);
for (i = 0; i < SPECK_ROUNDS16; i++){
RR16(pt[1], pt[0], K[(SPECK_ROUNDS16 - 1) - i]);
}
}
void speck_set_encrypt_key32(SPECK_TYPE32 const K[SPECK_KEY_LEN32], SPECK_TYPE32 S[SPECK_ROUNDS32])
{
SPECK_TYPE32 i, b = K[0];
SPECK_TYPE32 a[SPECK_KEY_LEN32 - 1];
for (i = 0; i < (SPECK_KEY_LEN32 - 1); i++)
{
a[i] = K[i + 1];
}
S[0] = b;
for (i = 0; i < SPECK_ROUNDS32 - 1; i++) {
R32(a[i % (SPECK_KEY_LEN32 - 1)], b, i);
S[i + 1] = b;
}
}
void speck_set_decrypt_key32(SPECK_TYPE32 const K[SPECK_KEY_LEN32], SPECK_TYPE32 S[SPECK_ROUNDS32])
{
SPECK_TYPE32 i, b = K[0];
SPECK_TYPE32 a[SPECK_KEY_LEN32 - 1];
for (i = 0; i < (SPECK_KEY_LEN32 - 1); i++)
{
a[i] = K[i + 1];
}
S[0] = b;
for (i = 0; i < SPECK_ROUNDS32 - 1; i++) {
R32(a[i % (SPECK_KEY_LEN32 - 1)], b, i);
S[i + 1] = b;
}
}
void speck_encrypt32(SPECK_TYPE32 const pt[2], SPECK_TYPE32 ct[2], SPECK_TYPE32 const K[SPECK_ROUNDS32])
{
SPECK_TYPE32 i;
ct[0] = pt[0]; ct[1] = pt[1];
for (i = 0; i < SPECK_ROUNDS32; i++){
R32(ct[1], ct[0], K[i]);
}
}
void speck_decrypt32(SPECK_TYPE32 const ct[2], SPECK_TYPE32 pt[2], SPECK_TYPE32 const K[SPECK_ROUNDS32])
{
SPECK_TYPE32 i;
pt[0] = ct[0]; pt[1] = ct[1];
for (i = 0; i < SPECK_ROUNDS32; i++){
RR32(pt[1], pt[0], K[(SPECK_ROUNDS32 - 1) - i]);
}
}
void speck_set_encrypt_key64(SPECK_TYPE64 const K[SPECK_KEY_LEN64], SPECK_TYPE64 S[SPECK_ROUNDS64])
{
SPECK_TYPE64 i, b = K[0];
SPECK_TYPE64 a[SPECK_KEY_LEN64 - 1];
for (i = 0; i < (SPECK_KEY_LEN64 - 1); i++)
{
a[i] = K[i + 1];
}
S[0] = b;
for (i = 0; i < SPECK_ROUNDS64 - 1; i++) {
R64(a[i % (SPECK_KEY_LEN64 - 1)], b, i);
S[i + 1] = b;
}
}
void speck_set_decrypt_key64(SPECK_TYPE64 const K[SPECK_KEY_LEN64], SPECK_TYPE64 S[SPECK_ROUNDS64])
{
SPECK_TYPE64 i, b = K[0];
SPECK_TYPE64 a[SPECK_KEY_LEN64 - 1];
for (i = 0; i < (SPECK_KEY_LEN64 - 1); i++)
{
a[i] = K[i + 1];
}
S[0] = b;
for (i = 0; i < SPECK_ROUNDS64 - 1; i++) {
R64(a[i % (SPECK_KEY_LEN64 - 1)], b, i);
S[i + 1] = b;
}
}
void speck_encrypt64(SPECK_TYPE64 const pt[2], SPECK_TYPE64 ct[2], SPECK_TYPE64 const K[SPECK_ROUNDS64])
{
SPECK_TYPE64 i;
ct[0] = pt[0]; ct[1] = pt[1];
for (i = 0; i < SPECK_ROUNDS64; i++){
R64(ct[1], ct[0], K[i]);
}
}
void speck_decrypt64(SPECK_TYPE64 const ct[2], SPECK_TYPE64 pt[2], SPECK_TYPE64 const K[SPECK_ROUNDS64])
{
SPECK_TYPE64 i;
pt[0] = ct[0]; pt[1] = ct[1];
for (i = 0; i < SPECK_ROUNDS64; i++){
RR64(pt[1], pt[0], K[(SPECK_ROUNDS64 - 1) - i]);
}
}