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cmdhfemrtd uses libcrypto

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merlokk 2021-07-05 12:03:50 +03:00
commit 93a19fb953
1 changed files with 4 additions and 19 deletions
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23
client/src/cmdhfemrtd.c
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@ -19,8 +19,7 @@
#include "protocols.h" // definitions of ISO14A/7816 protocol
#include "iso7816/apduinfo.h" // GetAPDUCodeDescription
#include "iso7816/iso7816core.h" // Iso7816ExchangeEx etc
#include "crypto/libpcrypto.h" // Hash calculation (sha1, sha256, sha512)
#include "mifare/desfire_crypto.h" // des_encrypt/des_decrypt
#include "crypto/libpcrypto.h" // Hash calculation (sha1, sha256, sha512), des_encrypt/des_decrypt
#include "des.h" // mbedtls_des_key_set_parity
#include "crapto1/crapto1.h" // prng_successor
#include "commonutil.h" // num_to_bytes
@ -263,20 +262,6 @@ static int emrtd_get_asn1_field_length(uint8_t *datain, int datainlen, int offse
return 0;
}
static void des_encrypt_ecb(uint8_t *key, uint8_t *input, uint8_t *output) {
mbedtls_des_context ctx_enc;
mbedtls_des_setkey_enc(&ctx_enc, key);
mbedtls_des_crypt_ecb(&ctx_enc, input, output);
mbedtls_des_free(&ctx_enc);
}
static void des_decrypt_ecb(uint8_t *key, uint8_t *input, uint8_t *output) {
mbedtls_des_context ctx_dec;
mbedtls_des_setkey_dec(&ctx_dec, key);
mbedtls_des_crypt_ecb(&ctx_dec, input, output);
mbedtls_des_free(&ctx_dec);
}
static void des3_encrypt_cbc(uint8_t *iv, uint8_t *key, uint8_t *input, int inputlen, uint8_t *output) {
mbedtls_des3_context ctx;
mbedtls_des3_set2key_enc(&ctx, key);
@ -345,15 +330,15 @@ static void retail_mac(uint8_t *key, uint8_t *input, int inputlen, uint8_t *outp
intermediate[x] = intermediate[x] ^ block[x];
}
des_encrypt_ecb(k0, intermediate, intermediate_des);
des_encrypt(intermediate_des, intermediate, k0);
memcpy(intermediate, intermediate_des, 8);
}
des_decrypt_ecb(k1, intermediate, intermediate_des);
des_decrypt(intermediate_des, intermediate, k1);
memcpy(intermediate, intermediate_des, 8);
des_encrypt_ecb(k0, intermediate, intermediate_des);
des_encrypt(intermediate_des, intermediate, k0);
memcpy(output, intermediate_des, 8);
}