src/lib/crypt_ops/crypto_format.h

   1 /* Copyright (c) 2001, Matej Pfajfar.
   2  * Copyright (c) 2001-2004, Roger Dingledine.
   3  * Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
   4  * Copyright (c) 2007-2021, The Tor Project, Inc. */
   5 /* See LICENSE for licensing information */
   6
   7 /**
   8  * \file crypto_format.h
   9  * \brief Header for crypto_format.c
  10  **/
  11
  12 #ifndef TOR_CRYPTO_FORMAT_H
  13 #define TOR_CRYPTO_FORMAT_H
  14
  15 #include "lib/testsupport/testsupport.h"
  16 #include "lib/cc/torint.h"
  17 #include "lib/defs/x25519_sizes.h"
  18
  19 struct ed25519_public_key_t;
  20 struct ed25519_signature_t;
  21
  22 int crypto_write_tagged_contents_to_file(const char *fname,
  23                                          const char *typestring,
  24                                          const char *tag,
  25                                          const uint8_t *data,
  26                                          size_t datalen);
  27
  28 ssize_t crypto_read_tagged_contents_from_file(const char *fname,
  29                                               const char *typestring,
  30                                               char **tag_out,
  31                                               uint8_t *data_out,
  32                                               ssize_t data_out_len);
  33
  34 int ed25519_public_from_base64(struct ed25519_public_key_t *pkey,
  35                                const char *input);
  36 void ed25519_public_to_base64(char *output,
  37                               const struct ed25519_public_key_t *pkey);
  38 const char *ed25519_fmt(const struct ed25519_public_key_t *pkey);
  39
  40 int ed25519_signature_from_base64(struct ed25519_signature_t *sig,
  41                                   const char *input);
  42 void ed25519_signature_to_base64(char *output,
  43                                  const struct ed25519_signature_t *sig);
  44
  45 void digest_to_base64(char *d64, const char *digest);
  46 int digest_from_base64(char *digest, const char *d64);
  47 void digest256_to_base64(char *d64, const char *digest);
  48 int digest256_from_base64(char *digest, const char *d64);
  49
  50 #endif /* !defined(TOR_CRYPTO_FORMAT_H) */