include base64 encoder

[pam_pcsc_cr.git] / crypto.h

diff --git a/crypto.h b/crypto.h
index 8eaf939e5f5b022dcbe352332099b35c9bfde4e0..8d5e7be2393108e054227fda983f9ca70ce0ea94 100644 (file)
--- a/crypto.h
+++ b/crypto.h
@@ -1,9 +1,39 @@
+/*
+Copyright (c) 2013 Eugene Crosser
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+    1. The origin of this software must not be misrepresented; you must
+    not claim that you wrote the original software. If you use this
+    software in a product, an acknowledgment in the product documentation
+    would be appreciated but is not required.
+
+    2. Altered source versions must be plainly marked as such, and must
+    not be misrepresented as being the original software.
+
+    3. This notice may not be removed or altered from any source
+    distribution.
+*/
+
 #ifndef _CRYPTO_H
 #define _CRYPTO_H
 
-int encrypt(void *pt, int ptlen, void *key, int keylen, void *ct, int *ctlen);
-int decrypt(void *ct, int ctlen, void *key, int keylen, void *pt, int *ptlen);
-int hash(void *pt, int ptlen, void *tag, int *taglen);
-int hmac(void *pt, int ptlen, void *key, int keylen, void *tag, int *taglen);
+int select_crypto_if(const int ifno);
+const char *crypto_init(const int ifno);
+unsigned long encrypt(const void *key, const int keylen, const void *pt, void *ct, const int tlen);
+unsigned long decrypt(const void *key, const int keylen, const void *ct, void *pt, const int tlen);
+unsigned long hash(const void *pt, const int tlen, void *tag, int *taglen);
+unsigned long hmac(const void *key, const int keylen, const void *pt, const int tlen,
+                       void *tag, int *taglen);
+const char *crypto_errstr(const unsigned long err);
+
+#define HASHSIZE 20
+#define CBLKSIZE 16
 
 #endif