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add aes256

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iceman1001 2025-07-13 11:03:20 +02:00
commit 0dc80263e8
2 changed files with 43 additions and 0 deletions
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39
client/src/crypto/libpcrypto.c
View file

@ -163,6 +163,45 @@ int aes_decode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int l
return PM3_SUCCESS; return PM3_SUCCESS;
} }
// NIST Special Publication 800-38A — Recommendation for block cipher modes of operation: methods and techniques, 2001.
int aes256_encode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length) {
uint8_t iiv[16] = {0};
if (iv) {
memcpy(iiv, iv, sizeof(iiv));
}
mbedtls_aes_context aes;
mbedtls_aes_init(&aes);
if (mbedtls_aes_setkey_enc(&aes, key, 256)) {
return 1;
}
if (mbedtls_aes_crypt_cbc(&aes, MBEDTLS_AES_ENCRYPT, length, iiv, input, output)) {
return 2;
}
mbedtls_aes_free(&aes);
return PM3_SUCCESS;
}
int aes256_decode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length) {
uint8_t iiv[16] = {0};
if (iv) {
memcpy(iiv, iv, 16);
}
mbedtls_aes_context aes;
mbedtls_aes_init(&aes);
if (mbedtls_aes_setkey_dec(&aes, key, 256)) {
return 1;
}
if (mbedtls_aes_crypt_cbc(&aes, MBEDTLS_AES_DECRYPT, length, iiv, input, output)) {
return 2;
}
mbedtls_aes_free(&aes);
return PM3_SUCCESS;
}
// NIST Special Publication 800-38B — Recommendation for block cipher modes of operation: The CMAC mode for authentication. // NIST Special Publication 800-38B — Recommendation for block cipher modes of operation: The CMAC mode for authentication.
// https://csrc.nist.gov/CSRC/media/Projects/Cryptographic-Standards-and-Guidelines/documents/examples/AES_CMAC.pdf // https://csrc.nist.gov/CSRC/media/Projects/Cryptographic-Standards-and-Guidelines/documents/examples/AES_CMAC.pdf
int aes_cmac(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *mac, int length) { int aes_cmac(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *mac, int length) {

4
client/src/crypto/libpcrypto.h
View file

@ -38,6 +38,10 @@ 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_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_decode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length);
int aes256_encode(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *output, int length);
int aes256_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); int aes_cmac(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *mac, int length);
int aes_cmac8(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *mac, int length); int aes_cmac8(uint8_t *iv, uint8_t *key, uint8_t *input, uint8_t *mac, int length);