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rsa key initialization

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Timerix
2025-09-13 02:29:26 +05:00
parent f01c5fc8a9
commit 98ae36ad2f
8 changed files with 292 additions and 16 deletions
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12
src/cryptography/AES.c
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@@ -1,15 +1,13 @@
#include "cryptography.h"
#include <assert.h>
#include "tlibc/time.h"
void EncryptorAES_create(EncryptorAES* ptr, Array(u8) key){
//TODO: use AES CTR encryption instead of my own padding algorithm
void EncryptorAES_init(EncryptorAES* ptr, Array(u8) key){
assert(key.size == 16 || key.size == 24 || key.size == 32);
br_aes_ct64_cbcenc_init(&ptr->enc_ctx, key.data, key.size);
// uses CLOCK_REALTIME to seed rng
nsec_t time_now = getTimeNsec();
br_hmac_drbg_init(&ptr->rng_ctx, &br_sha256_vtable, &time_now, sizeof(time_now));
rng_init_sha256_seedFromTime(&br_hmac_drbg_vtable, &ptr->rng_ctx.vtable);
memset(ptr->buf, 0, __AES_BUFFER_SIZE);
memset(ptr->iv, 0, sizeof(ptr->iv));
@@ -51,7 +49,7 @@ void EncryptorAES_encrypt(EncryptorAES* ptr, Array(u8) src, Array(u8) dst){
}
void DecryptorAES_create(DecryptorAES* ptr, Array(u8) key){
void DecryptorAES_init(DecryptorAES* ptr, Array(u8) key){
assert(key.size == 16 || key.size == 24 || key.size == 32);
br_aes_ct64_cbcdec_init(&ptr->dec_ctx, key.data, key.size);