crypto.h 2.1 KB

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  1. /* Slitheen - a decoy routing system for censorship resistance
  2. * Copyright (C) 2017 Cecylia Bocovich (cbocovic@uwaterloo.ca)
  3. *
  4. * This program is free software: you can redistribute it and/or modify
  5. * it under the terms of the GNU General Public License as published by
  6. * the Free Software Foundation, version 3.
  7. *
  8. * This program is distributed in the hope that it will be useful,
  9. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11. * GNU General Public License for more details.
  12. *
  13. * You should have received a copy of the GNU General Public License
  14. * along with this program. If not, see <http://www.gnu.org/licenses/>.
  15. *
  16. * Additional permission under GNU GPL version 3 section 7
  17. *
  18. * If you modify this Program, or any covered work, by linking or combining
  19. * it with the OpenSSL library (or a modified version of that library),
  20. * containing parts covered by the terms of the OpenSSL Licence and the
  21. * SSLeay license, the licensors of this Program grant you additional
  22. * permission to convey the resulting work. Corresponding Source for a
  23. * non-source form of such a combination shall include the source code
  24. * for the parts of the OpenSSL library used as well as that of the covered
  25. * work.
  26. */
  27. #ifndef CRYPTO_H
  28. #define CRYPTO_H
  29. #include "flow.h"
  30. int update_handshake_hash(flow *f, uint8_t *hs);
  31. int extract_parameters(flow *f, uint8_t *hs);
  32. int encrypt(flow *f, uint8_t *input, uint8_t *output, int32_t len, int32_t incoming, int32_t type, int32_t enc, uint8_t re);
  33. int extract_server_random(flow *f, uint8_t *hs);
  34. int compute_master_secret(flow *f);
  35. int mark_finished_hash(flow *f, uint8_t *hs);
  36. int init_ciphers(flow *f);
  37. void generate_client_super_keys(uint8_t *secret, client *c);
  38. int super_encrypt(client *c, uint8_t *data, uint32_t len);
  39. int check_handshake(struct packet_info *info);
  40. int partial_aes_gcm_tls_cipher(flow *f, unsigned char *out, const unsigned char *in, size_t len, size_t offset, uint8_t enc);
  41. void partial_aes_gcm_tls_tag(flow *f, unsigned char *tag, size_t len);
  42. #endif /* CRYPTO_H */