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nfqws2: update crypto

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bol-van
2025-11-23 13:34:27 +03:00
parent d0fe0f25ba
commit 38ef16bcdf
2 changed files with 17 additions and 4 deletions
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17
nfq2/crypto/aes-ctr.c
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@@ -3,7 +3,7 @@
#define AES_BLOCKLEN 16
void aes_ctr_xcrypt_buffer(aes_context *ctx, const uint8_t *iv, uint8_t *buf, size_t length)
void aes_ctr_xcrypt_buffer(aes_context *ctx, const uint8_t *iv, const uint8_t *in, size_t length, uint8_t *out)
{
uint8_t bi, buffer[AES_BLOCKLEN], ivc[AES_BLOCKLEN];
size_t i;
@@ -31,6 +31,19 @@ void aes_ctr_xcrypt_buffer(aes_context *ctx, const uint8_t *iv, uint8_t *buf, si
}
bi = 0;
}
buf[i] = (buf[i] ^ buffer[bi]);
out[i] = in[i] ^ buffer[bi];
}
}
int aes_ctr_crypt(const uint8_t *key, const size_t key_len, const uint8_t *iv, const uint8_t *in, size_t length, uint8_t *out)
{
int ret=0;
aes_context ctx;
aes_init_keygen_tables();
if (!(ret=aes_setkey(&ctx, AES_ENCRYPT, key, key_len)))
aes_ctr_xcrypt_buffer(&ctx, iv, in, length, out);
return ret;
}

4
nfq2/crypto/aes-ctr.h
View File

@@ -3,5 +3,5 @@
#include <stdint.h>
#include "aes.h"
// this function rewrites buf
void aes_ctr_xcrypt_buffer(aes_context *ctx, const uint8_t *iv, uint8_t *buf, size_t length);
void aes_ctr_xcrypt_buffer(aes_context *ctx, const uint8_t *iv, const uint8_t *in, size_t length, uint8_t *out);
int aes_ctr_crypt(const uint8_t *key, const size_t key_len, const uint8_t *iv, const uint8_t *in, size_t length, uint8_t *out);