Emv4 - more additions to hf emv exec

[proxmark3-svn] / client / emv / crypto_backend.h

diff --git a/client/emv/crypto_backend.h b/client/emv/crypto_backend.h
new file mode 100644 (file)
index 0000000..a815ae1
--- /dev/null
+++ b/client/emv/crypto_backend.h
@@ -0,0 +1,50 @@
+/*
+ * libopenemv - a library to work with EMV family of smart cards
+ * Copyright (C) 2015 Dmitry Eremin-Solenikov
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ */
+
+#ifndef CRYPTO_BACKEND_H
+#define CRYPTO_BACKEND_H
+
+#include "crypto.h"
+
+#include <stddef.h>
+#include <stdarg.h>
+
+struct crypto_hash {
+       enum crypto_algo_hash algo;
+       void (*write)(struct crypto_hash *ch, const unsigned char *buf, size_t len);
+       unsigned char *(*read)(struct crypto_hash *ch);
+       void (*close)(struct crypto_hash *ch);
+       size_t (*get_size)(const struct crypto_hash *ch);
+};
+
+struct crypto_pk {
+       enum crypto_algo_pk algo;
+       unsigned char *(*encrypt)(const struct crypto_pk *cp, const unsigned char *buf, size_t len, size_t *clen);
+       unsigned char *(*decrypt)(const struct crypto_pk *cp, const unsigned char *buf, size_t len, size_t *clen);
+       unsigned char *(*get_parameter)(const struct crypto_pk *cp, unsigned param, size_t *plen);
+       size_t (*get_nbits)(const struct crypto_pk *cp);
+       void (*close)(struct crypto_pk *cp);
+};
+
+struct crypto_backend {
+       struct crypto_hash *(*hash_open)(enum crypto_algo_hash hash);
+       struct crypto_pk *(*pk_open)(enum crypto_algo_pk pk, va_list vl);
+       struct crypto_pk *(*pk_open_priv)(enum crypto_algo_pk pk, va_list vl);
+       struct crypto_pk *(*pk_genkey)(enum crypto_algo_pk pk, va_list vl);
+};
+
+struct crypto_backend *crypto_polarssl_init(void);
+
+#endif