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Update ZUC algorithm with EVP module

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128-EEA3, 128-EIA3, byte-order and tests need to be updated.
This commit is contained in:
Zhi Guan
2018-01-03 15:26:09 +08:00
parent f4e43474ab
commit c41e135604
12 changed files with 360 additions and 356 deletions
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84
crypto/zuc/zuc_128eia3.c
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@@ -1,5 +1,5 @@
/* ====================================================================
* Copyright (c) 2015 - 2016 The GmSSL Project. All rights reserved.
* Copyright (c) 2015 - 2018 The GmSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -48,85 +48,27 @@
*/
#include <openssl/zuc.h>
#include "zuc_lcl.h"
void eea3_init(eea3_ctx_t *ctx, const unsigned char *user_key,
uint32_t count, uint32_t bearer, int direction)
void ZUC_128eia3_set_key(ZUC_128EIA3 *ctx, const unsigned char *user_key,
ZUC_UINT32 count, ZUC_UINT5 bearer, ZUC_UINT1 direction)
{
unsigned char iv[16] = {0};
iv[0] = iv[8] = (count >> 24) & 0xff;
iv[1] = iv[9] = (count >> 16) & 0xff;
iv[2] = iv[10] = (count >> 8) & 0xff;
iv[3] = iv[11] = count & 0xff;
iv[4] = iv[12] = ((bearer << 3) | ((direction & 1) << 2)) & 0xfc;
zuc_ctx_init(ctx->zuc_ctx, user_key, iv);
//TODO
}
void eea3_encrypt(eea3_ctx_t *ctx, size_t len, const unsigned char *in, unsigned char *out);
void eea3(const unsigned char *key, uint32_t count, uint32_t bearer, int direction,
size_t len, const unsigned char *in, unsigned char *out);
u32 GET_WORD(u32 * DATA, u32 i)
void ZUC_128eia3_update(ZUC_128EIA3 *ctx, const unsigned char *data,
size_t datalen)
{
u32 WORD, ti;
ti = i % 32;
if (ti == 0) {
WORD = DATA[i/32];
}
else {
WORD = (DATA[i/32]<<ti) | (DATA[i/32+1]>>(32-ti));
}
return WORD;
//TODO
}
u8 GET_BIT(u32 * DATA, u32 i)
void ZUC_128eia3_final(ZUC_128EIA3 *ctx, uint32_t *mac)
{
return (DATA[i/32] & (1<<(31-(i%32)))) ? 1 : 0;
//TODO
}
void EIA3(u8* IK, u32 count, u32 DIRECTION, u32 BEARER, u32 LENGTH, u32* M, u32* MAC)
void ZUC_128eia3(const unsigned char key[ZUC_KEY_LENGTH],
ZUC_UINT32 count, ZUC_UINT5 bearer, ZUC_UINT1 direction,
const unsigned char *data, size_t dlen, uint32_t *mac)
{
u32 *z, N, L, T, i;
u8 iv[16];
iv[0] = (count>>24) & 0xFF;
iv[1] = (count>>16) & 0xFF;
iv[2] = (count>>8) & 0xFF;
iv[3] = count & 0xFF;
iv[4] = (BEARER << 3) & 0xF8;
iv[5] = iv[6] = iv[7] = 0;
iv[8] = ((count>>24) & 0xFF) ^ ((DIRECTION&1)<<7);
iv[9] = (count>>16) & 0xFF;
iv[10] = (count>>8) & 0xFF;
iv[11] = count & 0xFF;
iv[12] = iv[4];
iv[13] = iv[5];
iv[14] = iv[6] ^ ((DIRECTION&1)<<7);
iv[15] = iv[7];
N = LENGTH + 64;
L = (N + 31) / 32;
z = (u32 *) malloc(L*sizeof(u32));
ZUC(IK, iv, z, L);
T = 0;
for (i = 0; i < LENGTH; i++) {
if (GET_BIT(M,i)) {
T ^= GET_WORD(z,i);
}
}
T ^= GET_WORD(z,LENGTH);
*MAC = T ^ z[L-1];
free(z);
//TODO
}