IABSD.fr/src/usr.bin/ssh/crypto_api.h

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• Author : djm
  Date : 2019-01-21 10:20:12
  Hash : b869f5f7
  Message : Add support for a PQC KEX/KEM: sntrup4591761x25519-sha512@tinyssh.org using the Streamlined NTRU Prime 4591^761 implementation from SUPERCOP coupled with X25519 as a stop-loss. Not enabled by default. introduce KEM API; a simplified framework for DH-ish KEX methods. from markus@ feedback & ok djm@

• usr.bin/ssh/crypto_api.h

• /* $OpenBSD: crypto_api.h,v 1.5 2019/01/21 10:20:12 djm Exp $ */
  
  /*
   * Assembled from generated headers and source files by Markus Friedl.
   * Placed in the public domain.
   */
  
  #ifndef crypto_api_h
  #define crypto_api_h
  
  #include <stdint.h>
  #include <stdlib.h>
  
  typedef int8_t crypto_int8;
  typedef uint8_t crypto_uint8;
  typedef int16_t crypto_int16;
  typedef uint16_t crypto_uint16;
  typedef int32_t crypto_int32;
  typedef uint32_t crypto_uint32;
  
  #define randombytes(buf, buf_len) arc4random_buf((buf), (buf_len))
  #define small_random32() arc4random()
  
  #define crypto_hash_sha512_BYTES 64U
  
  int	crypto_hash_sha512(unsigned char *, const unsigned char *,
      unsigned long long);
  
  int	crypto_verify_32(const unsigned char *, const unsigned char *);
  
  #define crypto_sign_ed25519_SECRETKEYBYTES 64U
  #define crypto_sign_ed25519_PUBLICKEYBYTES 32U
  #define crypto_sign_ed25519_BYTES 64U
  
  int	crypto_sign_ed25519(unsigned char *, unsigned long long *,
      const unsigned char *, unsigned long long, const unsigned char *);
  int	crypto_sign_ed25519_open(unsigned char *, unsigned long long *,
      const unsigned char *, unsigned long long, const unsigned char *);
  int	crypto_sign_ed25519_keypair(unsigned char *, unsigned char *);
  
  #define crypto_kem_sntrup4591761_PUBLICKEYBYTES 1218
  #define crypto_kem_sntrup4591761_SECRETKEYBYTES 1600
  #define crypto_kem_sntrup4591761_CIPHERTEXTBYTES 1047
  #define crypto_kem_sntrup4591761_BYTES 32
  
  int	crypto_kem_sntrup4591761_enc(unsigned char *cstr, unsigned char *k,
      const unsigned char *pk);
  int	crypto_kem_sntrup4591761_dec(unsigned char *k,
      const unsigned char *cstr, const unsigned char *sk);
  int	crypto_kem_sntrup4591761_keypair(unsigned char *pk, unsigned char *sk);
  
  #endif /* crypto_api_h */