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add des3 to libcrypto

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This commit is contained in:
merlokk 2021-07-16 20:45:03 +03:00
commit 1699d8a90e
2 changed files with 50 additions and 0 deletions
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48
client/src/crypto/libpcrypto.c
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@ -65,6 +65,54 @@ void des_decrypt_cbc(void *out, const void *in, const int length, const void *ke
mbedtls_des_crypt_cbc(&ctx, MBEDTLS_DES_DECRYPT, length, iv, in, out);
}
void des3_encrypt(void *out, const void *in, const void *key, uint8_t keycount) {
switch (keycount) {
case 1:
des_encrypt(out, in, key);
break;
case 2: {
mbedtls_des3_context ctx3;
mbedtls_des3_set2key_enc(&ctx3, key);
mbedtls_des3_crypt_ecb(&ctx3, in, out);
mbedtls_des3_free(&ctx3);
break;
}
case 3: {
mbedtls_des3_context ctx3;
mbedtls_des3_set3key_enc(&ctx3, key);
mbedtls_des3_crypt_ecb(&ctx3, in, out);
mbedtls_des3_free(&ctx3);
break;
}
default:
break;
}
}
void des3_decrypt(void *out, const void *in, const void *key, uint8_t keycount) {
switch (keycount) {
case 1:
des_encrypt(out, in, key);
break;
case 2: {
mbedtls_des3_context ctx3;
mbedtls_des3_set2key_dec(&ctx3, key);
mbedtls_des3_crypt_ecb(&ctx3, in, out);
mbedtls_des3_free(&ctx3);
break;
}
case 3: {
mbedtls_des3_context ctx3;
mbedtls_des3_set3key_dec(&ctx3, key);
mbedtls_des3_crypt_ecb(&ctx3, in, out);
mbedtls_des3_free(&ctx3);
break;
}
default:
break;
}
}
// 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};

2
client/src/crypto/libpcrypto.h
View file

@ -22,6 +22,8 @@ void des_encrypt_ecb(void *out, const void *in, const int length, const void *ke
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);
void des3_encrypt(void *out, const void *in, const void *key, uint8_t keycount);
void des3_decrypt(void *out, const void *in, const void *key, uint8_t keycount);
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);