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- /*
- * Slitheen - a decoy routing system for censorship resistance
- * Copyright (C) 2017 Cecylia Bocovich (cbocovic@uwaterloo.ca)
- *
- * 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, version 3.
- *
- * 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, see <http://www.gnu.org/licenses/>.
- *
- * Additional permission under GNU GPL version 3 section 7
- *
- * If you modify this Program, or any covered work, by linking or combining
- * it with the OpenSSL library (or a modified version of that library),
- * containing parts covered by the terms of [name of library's license],
- * the licensors of this Program grant you additional permission to convey
- * the resulting work. {Corresponding Source for a non-source form of such
- * a combination shall include the source code for the parts of the OpenSSL
- * library used as well as that of the covered work.}
- */
- #ifndef _CRYPTO_H_
- #define _CRYPTO_H_
- #include <stdint.h>
- #include <openssl/evp.h>
- # define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \
- (((unsigned int)(c[1])) )),c+=2)
- int PRF(uint8_t *secret, int32_t secret_len,
- uint8_t *seed1, int32_t seed1_len,
- uint8_t *seed2, int32_t seed2_len,
- uint8_t *seed3, int32_t seed3_len,
- uint8_t *seed4, int32_t seed4_len,
- uint8_t *output, int32_t output_len);
- int peek_header(uint8_t *data);
- int super_decrypt(uint8_t *data);
- int generate_super_keys(uint8_t *secret);
- typedef struct super_data_st {
- uint8_t *header_key;
- uint8_t *body_key;
- EVP_MD_CTX *body_mac_ctx;
- } super_data;
- #define PRE_MASTER_LEN 256
- #endif /* _CRYPTO_H_ */
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