1 /* 2 * ProFTPD - mod_auth_otp misc crypto routines 3 * Copyright (c) 2015-2016 TJ Saunders 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA. 18 * 19 * As a special exemption, TJ Saunders and other respective copyright holders 20 * give permission to link this program with OpenSSL, and distribute the 21 * resulting executable, without including the source code for OpenSSL in the 22 * source distribution. 23 */ 24 25 #ifndef MOD_AUTH_OTP_CRYPTO_H 26 #define MOD_AUTH_OTP_CRYPTO_H 27 28 #include "mod_auth_otp.h" 29 30 int auth_otp_crypto_init(void); 31 void auth_otp_crypto_free(int); 32 33 const char *auth_otp_crypto_get_errors(void); 34 35 int auth_otp_hmac(const EVP_MD *md, const unsigned char *key, size_t key_len, 36 const unsigned char *data, size_t data_len, unsigned char *mac, 37 size_t *mac_len); 38 39 #endif /* MOD_AUTH_OTP_CRYPTO_H */ 40