update README

[pam_pcsc_cr.git] / crypto_if.h

diff --git a/crypto_if.h b/crypto_if.h
index c24d6a3630106c6f63ec516fff1814b25036f8c9..e2c7579794fc707a383b19b917c9ab8430acb001 100644 (file)
--- a/crypto_if.h
+++ b/crypto_if.h
@@ -1,16 +1,41 @@
+/*
+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_IF_H
 #define _CRYPTO_IF_H
 
 struct crypto_interface {
-       char *name;
-       unsigned long (*encrypt)(void *key, int keylen, void *iv,
-                               void *pt, void *ct, int tlen);
-       unsigned long (*decrypt)(void *key, int keylen, void *iv,
-                               void *ct, void *pt, int tlen);
-       unsigned long (*hash)(void *pt, int tlen, void *tag, int *taglen);
-       unsigned long (*hmac)(void *key, int keylen,
-                               void *pt, int tlen, void *tag, int *taglen);
-       const char *(*errstr)(unsigned long err);
+       const char *(*init)(void);
+       unsigned long (*encrypt)(const void *key, const int keylen, void *iv,
+                               const void *pt, void *ct, const int tlen);
+       unsigned long (*decrypt)(const void *key, const int keylen, void *iv,
+                               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 *(*errstr)(const unsigned long err);
 };
 
 #endif