X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=crypt.h;h=019b643e7f00ef1c548a59b30e1d870f96cdb7d1;hp=1f7b8a867b1aea2a52c53f03275372b4fca849d9;hb=f31f8ceeaff0db558b63a46559e7d7464859d0c4;hpb=89b2ebc40332c729be076f6122d1744b205c64bc

diff --git a/crypt.h b/crypt.h
index 1f7b8a86..019b643e 100644
--- a/crypt.h
+++ b/crypt.h
@@ -1,37 +1,35 @@
 /*
- * Copyright (C) 2005-2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2009 Andre Noll <maan@systemlinux.org>
  *
- *     This program is free software; you can redistribute it and/or modify
- *     it under the terms of the GNU General Public License as published by
- *     the Free Software Foundation; either version 2 of the License, or
- *     (at your option) any later version.
- *
- *     This program 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 General Public License for more details.
- *
- *     You should have received a copy of the GNU General Public License
- *     along with this program; if not, write to the Free Software
- *     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ * Licensed under the GPL v2. For licencing details see COPYING.
  */
 
 /** \file crypt.h prototypes for the RSA crypt functions */
 
 #include <openssl/pem.h>
-int para_decrypt_challenge(char *key_file, long unsigned *challenge_nr,
-	unsigned char *buf, int rsa_inlen);
-int para_encrypt_challenge(RSA* rsa, long unsigned challenge_nr,
-	unsigned char *outbuf);
-int para_encrypt_buffer(RSA* rsa, unsigned char *inbuf, const unsigned len,
+int para_encrypt_buffer(RSA* rsa, unsigned char *inbuf, unsigned len,
 	unsigned char *outbuf);
 int para_decrypt_buffer(char *key_file, unsigned char *outbuf, unsigned char *inbuf,
-	int rsa_inlen);
+	unsigned rsa_inlen);
 int get_rsa_key(char *key_file, RSA **rsa, int private);
 
 void rsa_free(RSA *rsa);
+void get_random_bytes_or_die(unsigned char *buf, int num);
+void init_random_seed_or_die(void);
+
+struct rc4_context {
+	int fd;
+	RC4_KEY recv_key;
+	RC4_KEY send_key;
+};
+int rc4_send_bin_buffer(struct rc4_context *rc4c, const char *buf, size_t len);
+int rc4_send_buffer(struct rc4_context *rc4c, const char *buf);
+__printf_2_3 int rc4_send_va_buffer(struct rc4_context *rc4c, const char *fmt, ...);
+int rc4_recv_bin_buffer(struct rc4_context *rcc, char *buf, size_t size);
+int rc4_recv_buffer(struct rc4_context *rcc, char *buf, size_t size);
 
 /** \cond used to distinguish between loading of private/public key */
 #define LOAD_PUBLIC_KEY 0
 #define LOAD_PRIVATE_KEY 1
+#define CHALLENGE_SIZE 64
 /** \endcond **/