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Annotation of src/usr.bin/ssh/schnorr.h, Revision 1.2

1.2     ! djm         1: /* $OpenBSD: schnorr.h,v 1.1 2009/03/05 07:18:19 djm Exp $ */
1.1       djm         2: /*
                      3:  * Copyright (c) 2009 Damien Miller.  All rights reserved.
                      4:  *
                      5:  * Permission to use, copy, modify, and distribute this software for any
                      6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
                      8:  *
                      9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     16:  */
                     17:
                     18: #ifndef SCHNORR_H
                     19: #define SCHNORR_H
                     20:
                     21: #include <sys/types.h>
                     22:
                     23: #include <openssl/bn.h>
                     24:
                     25: struct modp_group {
                     26:        BIGNUM *p, *q, *g;
                     27: };
                     28:
                     29: BIGNUM *bn_rand_range_gt_one(const BIGNUM *high);
1.2     ! djm        30: int hash_buffer(const u_char *, u_int, int, u_char **, u_int *);
1.1       djm        31: void debug3_bn(const BIGNUM *, const char *, ...)
                     32:     __attribute__((__nonnull__ (2)))
                     33:     __attribute__((format(printf, 2, 3)));
                     34: void debug3_buf(const u_char *, u_int, const char *, ...)
                     35:     __attribute__((__nonnull__ (3)))
                     36:     __attribute__((format(printf, 3, 4)));
                     37: struct modp_group *modp_group_from_g_and_safe_p(const char *, const char *);
                     38: void modp_group_free(struct modp_group *);
                     39:
                     40: /* Signature and verification functions */
                     41: int
                     42: schnorr_sign(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g,
1.2     ! djm        43:     int hash_alg, const BIGNUM *x, const BIGNUM *g_x,
1.1       djm        44:     const u_char *id, u_int idlen, BIGNUM **r_p, BIGNUM **e_p);
                     45: int
                     46: schnorr_sign_buf(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g,
                     47:     const BIGNUM *x, const BIGNUM *g_x, const u_char *id, u_int idlen,
                     48:     u_char **sig, u_int *siglen);
                     49: int
                     50: schnorr_verify(const BIGNUM *grp_p, const BIGNUM *grp_q, const BIGNUM *grp_g,
1.2     ! djm        51:     int hash_alg, const BIGNUM *g_x, const u_char *id, u_int idlen,
1.1       djm        52:     const BIGNUM *r, const BIGNUM *e);
                     53: int
                     54: schnorr_verify_buf(const BIGNUM *grp_p, const BIGNUM *grp_q,
                     55:     const BIGNUM *grp_g,
                     56:     const BIGNUM *g_x, const u_char *id, u_int idlen,
                     57:     const u_char *sig, u_int siglen);
                     58:
                     59: #endif /* JPAKE_H */
                     60: