1*ebfedea0SLionel Sambuc /* $NetBSD: otp.h,v 1.1.1.2 2011/04/14 14:09:28 elric Exp $ */ 2*ebfedea0SLionel Sambuc 3*ebfedea0SLionel Sambuc /* 4*ebfedea0SLionel Sambuc * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan 5*ebfedea0SLionel Sambuc * (Royal Institute of Technology, Stockholm, Sweden). 6*ebfedea0SLionel Sambuc * All rights reserved. 7*ebfedea0SLionel Sambuc * 8*ebfedea0SLionel Sambuc * Redistribution and use in source and binary forms, with or without 9*ebfedea0SLionel Sambuc * modification, are permitted provided that the following conditions 10*ebfedea0SLionel Sambuc * are met: 11*ebfedea0SLionel Sambuc * 12*ebfedea0SLionel Sambuc * 1. Redistributions of source code must retain the above copyright 13*ebfedea0SLionel Sambuc * notice, this list of conditions and the following disclaimer. 14*ebfedea0SLionel Sambuc * 15*ebfedea0SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright 16*ebfedea0SLionel Sambuc * notice, this list of conditions and the following disclaimer in the 17*ebfedea0SLionel Sambuc * documentation and/or other materials provided with the distribution. 18*ebfedea0SLionel Sambuc * 19*ebfedea0SLionel Sambuc * 3. Neither the name of the Institute nor the names of its contributors 20*ebfedea0SLionel Sambuc * may be used to endorse or promote products derived from this software 21*ebfedea0SLionel Sambuc * without specific prior written permission. 22*ebfedea0SLionel Sambuc * 23*ebfedea0SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24*ebfedea0SLionel Sambuc * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25*ebfedea0SLionel Sambuc * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26*ebfedea0SLionel Sambuc * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27*ebfedea0SLionel Sambuc * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28*ebfedea0SLionel Sambuc * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29*ebfedea0SLionel Sambuc * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30*ebfedea0SLionel Sambuc * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31*ebfedea0SLionel Sambuc * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32*ebfedea0SLionel Sambuc * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33*ebfedea0SLionel Sambuc * SUCH DAMAGE. 34*ebfedea0SLionel Sambuc */ 35*ebfedea0SLionel Sambuc 36*ebfedea0SLionel Sambuc /* Id */ 37*ebfedea0SLionel Sambuc 38*ebfedea0SLionel Sambuc #ifndef _OTP_H 39*ebfedea0SLionel Sambuc #define _OTP_H 40*ebfedea0SLionel Sambuc 41*ebfedea0SLionel Sambuc #include <stdlib.h> 42*ebfedea0SLionel Sambuc #include <time.h> 43*ebfedea0SLionel Sambuc 44*ebfedea0SLionel Sambuc enum {OTPKEYSIZE = 8}; 45*ebfedea0SLionel Sambuc 46*ebfedea0SLionel Sambuc typedef unsigned char OtpKey[OTPKEYSIZE]; 47*ebfedea0SLionel Sambuc 48*ebfedea0SLionel Sambuc #define OTP_MIN_PASSPHRASE 10 49*ebfedea0SLionel Sambuc #define OTP_MAX_PASSPHRASE 63 50*ebfedea0SLionel Sambuc 51*ebfedea0SLionel Sambuc #define OTP_USER_TIMEOUT 120 52*ebfedea0SLionel Sambuc #define OTP_DB_TIMEOUT 60 53*ebfedea0SLionel Sambuc 54*ebfedea0SLionel Sambuc #define OTP_HEXPREFIX "hex:" 55*ebfedea0SLionel Sambuc #define OTP_WORDPREFIX "word:" 56*ebfedea0SLionel Sambuc 57*ebfedea0SLionel Sambuc typedef enum { OTP_ALG_MD4, OTP_ALG_MD5, OTP_ALG_SHA } OtpAlgID; 58*ebfedea0SLionel Sambuc 59*ebfedea0SLionel Sambuc #define OTP_ALG_DEFAULT "md5" 60*ebfedea0SLionel Sambuc 61*ebfedea0SLionel Sambuc typedef struct { 62*ebfedea0SLionel Sambuc OtpAlgID id; 63*ebfedea0SLionel Sambuc char *name; 64*ebfedea0SLionel Sambuc int hashsize; 65*ebfedea0SLionel Sambuc int (*hash)(const char *, size_t, unsigned char *); 66*ebfedea0SLionel Sambuc int (*init)(OtpKey, const char *, const char *); 67*ebfedea0SLionel Sambuc int (*next)(OtpKey); 68*ebfedea0SLionel Sambuc } OtpAlgorithm; 69*ebfedea0SLionel Sambuc 70*ebfedea0SLionel Sambuc typedef struct { 71*ebfedea0SLionel Sambuc char *user; 72*ebfedea0SLionel Sambuc OtpAlgorithm *alg; 73*ebfedea0SLionel Sambuc unsigned n; 74*ebfedea0SLionel Sambuc char seed[17]; 75*ebfedea0SLionel Sambuc OtpKey key; 76*ebfedea0SLionel Sambuc int challengep; 77*ebfedea0SLionel Sambuc time_t lock_time; 78*ebfedea0SLionel Sambuc char *err; 79*ebfedea0SLionel Sambuc } OtpContext; 80*ebfedea0SLionel Sambuc 81*ebfedea0SLionel Sambuc OtpAlgorithm *otp_find_alg (char *); 82*ebfedea0SLionel Sambuc void otp_print_stddict (OtpKey, char *, size_t); 83*ebfedea0SLionel Sambuc void otp_print_hex (OtpKey, char *, size_t); 84*ebfedea0SLionel Sambuc void otp_print_stddict_extended (OtpKey, char *, size_t); 85*ebfedea0SLionel Sambuc void otp_print_hex_extended (OtpKey, char *, size_t); 86*ebfedea0SLionel Sambuc unsigned otp_checksum (OtpKey); 87*ebfedea0SLionel Sambuc int otp_parse_hex (OtpKey, const char *); 88*ebfedea0SLionel Sambuc int otp_parse_stddict (OtpKey, const char *); 89*ebfedea0SLionel Sambuc int otp_parse_altdict (OtpKey, const char *, OtpAlgorithm *); 90*ebfedea0SLionel Sambuc int otp_parse (OtpKey, const char *, OtpAlgorithm *); 91*ebfedea0SLionel Sambuc int otp_challenge (OtpContext *, char *, char *, size_t); 92*ebfedea0SLionel Sambuc int otp_verify_user (OtpContext *, const char *); 93*ebfedea0SLionel Sambuc int otp_verify_user_1 (OtpContext *, const char *); 94*ebfedea0SLionel Sambuc char *otp_error (OtpContext *); 95*ebfedea0SLionel Sambuc 96*ebfedea0SLionel Sambuc void *otp_db_open (void); 97*ebfedea0SLionel Sambuc void otp_db_close (void *); 98*ebfedea0SLionel Sambuc int otp_put (void *, OtpContext *); 99*ebfedea0SLionel Sambuc int otp_get (void *, OtpContext *); 100*ebfedea0SLionel Sambuc int otp_simple_get (void *, OtpContext *); 101*ebfedea0SLionel Sambuc int otp_delete (void *, OtpContext *); 102*ebfedea0SLionel Sambuc 103*ebfedea0SLionel Sambuc #endif /* _OTP_H */ 104