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move des functions to pcrypto

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This commit is contained in:
merlokk 2021-07-05 12:01:43 +03:00
commit 2fb090e560
2 changed files with 45 additions and 0 deletions
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38
client/src/crypto/libpcrypto.c
View file

@ -15,6 +15,7 @@
#include <unistd.h>
#include <string.h>
#include <mbedtls/asn1.h>
#include <mbedtls/des.h>
#include <mbedtls/aes.h>
#include <mbedtls/cmac.h>
#include <mbedtls/pk.h>
@ -27,6 +28,43 @@
#include <mbedtls/error.h>
#include "util.h"
#include "ui.h"
void des_encrypt(void *out, const void *in, const void *key) {
mbedtls_des_context ctx;
mbedtls_des_setkey_enc(&ctx, key);
mbedtls_des_crypt_ecb(&ctx, in, out);
mbedtls_des_free(&ctx);
}
void des_decrypt(void *out, const void *in, const void *key) {
mbedtls_des_context ctx;
mbedtls_des_setkey_dec(&ctx, key);
mbedtls_des_crypt_ecb(&ctx, in, out);
mbedtls_des_free(&ctx);
}
void des_encrypt_ecb(void *out, const void *in, const int length, const void *key) {
for (int i = 0; i < length; i += 8)
des_encrypt((uint8_t *)out + i, (uint8_t *)in + i, key);
}
void des_decrypt_ecb(void *out, const void *in, const int length, const void *key) {
for (int i = 0; i < length; i += 8)
des_decrypt((uint8_t *)out + i, (uint8_t *)in + i, key);
}
void des_encrypt_cbc(void *out, const void *in, const int length, const void *key, uint8_t *iv) {
mbedtls_des_context ctx;
mbedtls_des_setkey_enc(&ctx, key);
mbedtls_des_crypt_cbc(&ctx, MBEDTLS_DES_ENCRYPT, length, iv, in, out);
}
void des_decrypt_cbc(void *out, const void *in, const int length, const void *key, uint8_t *iv) {
mbedtls_des_context ctx;
mbedtls_des_setkey_dec(&ctx, key);
mbedtls_des_crypt_cbc(&ctx, MBEDTLS_DES_DECRYPT, length, iv, in, out);
}
// NIST Special Publication 800-38A — Recommendation for block cipher modes of operation: methods and techniques, 2001.
int aes_encode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length) {
uint8_t iiv[16] = {0};

7
client/src/crypto/libpcrypto.h
View file

@ -16,6 +16,13 @@
#include <stddef.h>
#include <mbedtls/pk.h>
void des_encrypt(void *out, const void *in, const void *key);
void des_decrypt(void *out, const void *in, const void *key);
void des_encrypt_ecb(void *out, const void *in, const int length, const void *key);
void des_decrypt_ecb(void *out, const void *in, const int length, const void *key);
void des_encrypt_cbc(void *out, const void *in, const int length, const void *key, uint8_t *iv);
void des_decrypt_cbc(void *out, const void *in, const int length, const void *key, uint8_t *iv);
int aes_encode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length);
int aes_decode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length);
int aes_cmac(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *mac, int length);