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-rw-r--r--jpake.h114
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diff --git a/jpake.h b/jpake.h
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-/* $OpenBSD: jpake.h,v 1.2 2009/03/05 07:18:19 djm Exp $ */
-/*
- * Copyright (c) 2008 Damien Miller. All rights reserved.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef JPAKE_H
-#define JPAKE_H
-
-#include <sys/types.h>
-
-#include <openssl/bn.h>
-
-/* Set JPAKE_DEBUG in CFLAGS for privacy-violating debugging */
-#ifndef JPAKE_DEBUG
-# define JPAKE_DEBUG_BN(a)
-# define JPAKE_DEBUG_BUF(a)
-# define JPAKE_DEBUG_CTX(a)
-#else
-# define JPAKE_DEBUG_BN(a) debug3_bn a
-# define JPAKE_DEBUG_BUF(a) debug3_buf a
-# define JPAKE_DEBUG_CTX(a) jpake_dump a
-#endif /* JPAKE_DEBUG */
-
-#define KZP_ID_LEN 16 /* Length of client and server IDs */
-
-struct jpake_ctx {
- /* Parameters */
- struct modp_group *grp;
-
- /* Private values shared by client and server */
- BIGNUM *s; /* Secret (salted, crypted password) */
- BIGNUM *k; /* Derived key */
-
- /* Client private values (NULL for server) */
- BIGNUM *x1; /* random in Zq */
- BIGNUM *x2; /* random in Z*q */
-
- /* Server private values (NULL for server) */
- BIGNUM *x3; /* random in Zq */
- BIGNUM *x4; /* random in Z*q */
-
- /* Step 1: C->S */
- u_char *client_id; /* Anti-replay nonce */
- u_int client_id_len;
- BIGNUM *g_x1; /* g^x1 */
- BIGNUM *g_x2; /* g^x2 */
-
- /* Step 1: S->C */
- u_char *server_id; /* Anti-replay nonce */
- u_int server_id_len;
- BIGNUM *g_x3; /* g^x3 */
- BIGNUM *g_x4; /* g^x4 */
-
- /* Step 2: C->S */
- BIGNUM *a; /* g^((x1+x3+x4)*x2*s) */
-
- /* Step 2: S->C */
- BIGNUM *b; /* g^((x1+x2+x3)*x4*s) */
-
- /* Confirmation: C->S */
- u_char *h_k_cid_sessid; /* H(k || client_id || session_id) */
- u_int h_k_cid_sessid_len;
-
- /* Confirmation: S->C */
- u_char *h_k_sid_sessid; /* H(k || server_id || session_id) */
- u_int h_k_sid_sessid_len;
-};
-
-/* jpake.c */
-struct modp_group *jpake_default_group(void);
-void jpake_dump(struct jpake_ctx *, const char *, ...)
- __attribute__((__nonnull__ (2)))
- __attribute__((format(printf, 2, 3)));
-struct jpake_ctx *jpake_new(void);
-void jpake_free(struct jpake_ctx *);
-
-void jpake_step1(struct modp_group *, u_char **, u_int *,
- BIGNUM **, BIGNUM **, BIGNUM **, BIGNUM **,
- u_char **, u_int *, u_char **, u_int *);
-
-void jpake_step2(struct modp_group *, BIGNUM *,
- BIGNUM *, BIGNUM *, BIGNUM *, BIGNUM *,
- const u_char *, u_int, const u_char *, u_int,
- const u_char *, u_int, const u_char *, u_int,
- BIGNUM **, u_char **, u_int *);
-
-void jpake_confirm_hash(const BIGNUM *,
- const u_char *, u_int,
- const u_char *, u_int,
- u_char **, u_int *);
-
-void jpake_key_confirm(struct modp_group *, BIGNUM *, BIGNUM *,
- BIGNUM *, BIGNUM *, BIGNUM *, BIGNUM *, BIGNUM *,
- const u_char *, u_int, const u_char *, u_int,
- const u_char *, u_int, const u_char *, u_int,
- BIGNUM **, u_char **, u_int *);
-
-int jpake_check_confirm(const BIGNUM *, const u_char *, u_int,
- const u_char *, u_int, const u_char *, u_int);
-
-#endif /* JPAKE_H */
-