+/*
+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 _AUTHOBJ_H
#define _AUTHOBJ_H
+#define AUTHCHUNKSIZE 20
+
+struct _auth_chunk {
+ const char *err;
+ unsigned char data[AUTHCHUNKSIZE];
+};
+
struct _auth_obj {
unsigned char *buffer; /* to be free()'d if not NULL */
const char *err; /* non-NULL if failed */
- unsigned char *authobj;
- int authsize;
+ unsigned char *data;
+ int datasize;
unsigned char *payload;
int paylsize;
};
-/* Construct new authobj from the given secret and other data */
-struct _auth_obj new_authobj(const char *userid, const char *password,
- const char *nonce,
- const unsigned char *secret, const int secsize,
- const unsigned char *payload, const int paysize);
-
-/* Unwrap old authobj, extract payload, construct new one with newnonce */
-struct _auth_obj verify_authobj(const char *userid, const char *password,
- const char *oldnonce, const char *newnonce,
- const unsigned char *authobj, const int authsize);
-
-/* Unwrap old authobj, replace the payload, construct new one with newnonce */
-struct _auth_obj reload_authobj(const char *userid, const char *password,
- const char *oldnonce, const char *newnonce,
- const unsigned char *authobj, const int authsize,
- const unsigned char *payload, const int paysize);
+/* Construct new or repack old authobj, return payload */
+struct _auth_obj authobj(const char *userid, const char *password,
+ const char *oldnonce, const char *newnonce,
+ const unsigned char *secret, const int secsize,
+ const unsigned char *payload, const int paysize,
+ const unsigned char *ablob, const int blobsize,
+ struct _auth_chunk (*fetch_key)(const unsigned char *chal,
+ const int csize));
#endif