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Revert "修改License"

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This reverts commit 0b4308b948.
This commit is contained in:
Simon
2022-08-26 13:44:26 +08:00
parent 0b4308b948
commit 4e5880e2ea
268 changed files with 67015 additions and 67247 deletions
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155
src/chacha20.c
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@@ -1,5 +1,5 @@
/*
* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
* Copyright 2022 The GmSSL Project. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
@@ -7,80 +7,79 @@
* http://www.apache.org/licenses/LICENSE-2.0
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <gmssl/chacha20.h>
#include <gmssl/endian.h>
void chacha20_init(CHACHA20_STATE *state,
const uint8_t key[CHACHA20_KEY_SIZE],
const uint8_t nonce[CHACHA20_NONCE_SIZE],
uint32_t counter)
{
state->d[ 0] = 0x61707865;
state->d[ 1] = 0x3320646e;
state->d[ 2] = 0x79622d32;
state->d[ 3] = 0x6b206574;
state->d[ 4] = GETU32_LE(key );
state->d[ 5] = GETU32_LE(key + 4);
state->d[ 6] = GETU32_LE(key + 8);
state->d[ 7] = GETU32_LE(key + 12);
state->d[ 8] = GETU32_LE(key + 16);
state->d[ 9] = GETU32_LE(key + 20);
state->d[10] = GETU32_LE(key + 24);
state->d[11] = GETU32_LE(key + 28);
state->d[12] = counter;
state->d[13] = GETU32_LE(nonce);
state->d[14] = GETU32_LE(nonce + 4);
state->d[15] = GETU32_LE(nonce + 8);
}
/* quarter round */
#define QR(A, B, C, D) \
A += B; D ^= A; D = ROL32(D, 16); \
C += D; B ^= C; B = ROL32(B, 12); \
A += B; D ^= A; D = ROL32(D, 8); \
C += D; B ^= C; B = ROL32(B, 7)
/* double round on state 4x4 matrix:
* four column rounds and and four diagonal rounds
*
* 0 1 2 3
* 4 5 6 7
* 8 9 10 11
* 12 13 14 15
*
*/
#define DR(S) \
QR(S[0], S[4], S[ 8], S[12]); \
QR(S[1], S[5], S[ 9], S[13]); \
QR(S[2], S[6], S[10], S[14]); \
QR(S[3], S[7], S[11], S[15]); \
QR(S[0], S[5], S[10], S[15]); \
QR(S[1], S[6], S[11], S[12]); \
QR(S[2], S[7], S[ 8], S[13]); \
QR(S[3], S[4], S[ 9], S[14])
void chacha20_generate_keystream(CHACHA20_STATE *state, size_t counts, uint8_t *out)
{
uint32_t working_state[16];
int i;
while (counts-- > 0) {
memcpy(working_state, state->d, sizeof(working_state));
for (i = 0; i < 10; i++) {
DR(working_state);
}
for (i = 0; i < 16; i++) {
working_state[i] += state->d[i];
PUTU32_LE(out, working_state[i]);
out += sizeof(uint32_t);
}
state->d[12]++;
}
}
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <gmssl/chacha20.h>
#include <gmssl/endian.h>
void chacha20_init(CHACHA20_STATE *state,
const uint8_t key[CHACHA20_KEY_SIZE],
const uint8_t nonce[CHACHA20_NONCE_SIZE],
uint32_t counter)
{
state->d[ 0] = 0x61707865;
state->d[ 1] = 0x3320646e;
state->d[ 2] = 0x79622d32;
state->d[ 3] = 0x6b206574;
state->d[ 4] = GETU32_LE(key );
state->d[ 5] = GETU32_LE(key + 4);
state->d[ 6] = GETU32_LE(key + 8);
state->d[ 7] = GETU32_LE(key + 12);
state->d[ 8] = GETU32_LE(key + 16);
state->d[ 9] = GETU32_LE(key + 20);
state->d[10] = GETU32_LE(key + 24);
state->d[11] = GETU32_LE(key + 28);
state->d[12] = counter;
state->d[13] = GETU32_LE(nonce);
state->d[14] = GETU32_LE(nonce + 4);
state->d[15] = GETU32_LE(nonce + 8);
}
/* quarter round */
#define QR(A, B, C, D) \
A += B; D ^= A; D = ROL32(D, 16); \
C += D; B ^= C; B = ROL32(B, 12); \
A += B; D ^= A; D = ROL32(D, 8); \
C += D; B ^= C; B = ROL32(B, 7)
/* double round on state 4x4 matrix:
* four column rounds and and four diagonal rounds
*
* 0 1 2 3
* 4 5 6 7
* 8 9 10 11
* 12 13 14 15
*
*/
#define DR(S) \
QR(S[0], S[4], S[ 8], S[12]); \
QR(S[1], S[5], S[ 9], S[13]); \
QR(S[2], S[6], S[10], S[14]); \
QR(S[3], S[7], S[11], S[15]); \
QR(S[0], S[5], S[10], S[15]); \
QR(S[1], S[6], S[11], S[12]); \
QR(S[2], S[7], S[ 8], S[13]); \
QR(S[3], S[4], S[ 9], S[14])
void chacha20_generate_keystream(CHACHA20_STATE *state, size_t counts, uint8_t *out)
{
uint32_t working_state[16];
int i;
while (counts-- > 0) {
memcpy(working_state, state->d, sizeof(working_state));
for (i = 0; i < 10; i++) {
DR(working_state);
}
for (i = 0; i < 16; i++) {
working_state[i] += state->d[i];
PUTU32_LE(out, working_state[i]);
out += sizeof(uint32_t);
}
state->d[12]++;
}
}