include/kripto/authstream.h

   1 #ifndef KRIPTO_AUTHSTREAM_H
   2 #define KRIPTO_AUTHSTREAM_H
   3
   4 #include <stddef.h>
   5
   6 typedef struct kripto_authstream_desc kripto_authstream_desc;
   7 typedef struct kripto_authstream kripto_authstream;
   8
   9 extern kripto_authstream *kripto_authstream_create
  10 (
  11         const kripto_authstream_desc *desc,
  12         unsigned int rounds,
  13         const void *key,
  14         unsigned int key_len,
  15         const void *iv,
  16         unsigned int iv_len,
  17         unsigned int tag_len
  18 );
  19
  20 extern kripto_authstream *kripto_authstream_recreate
  21 (
  22         kripto_authstream *s,
  23         unsigned int rounds,
  24         const void *key,
  25         unsigned int key_len,
  26         const void *iv,
  27         unsigned int iv_len,
  28         unsigned int tag_len
  29 );
  30
  31 extern void kripto_authstream_encrypt
  32 (
  33         kripto_authstream *s,
  34         const void *pt,
  35         void *ct,
  36         size_t len
  37 );
  38
  39 extern void kripto_authstream_decrypt
  40 (
  41         kripto_authstream *s,
  42         const void *ct,
  43         void *pt,
  44         size_t len
  45 );
  46
  47 extern void kripto_authstream_header
  48 (
  49         kripto_authstream *s,
  50         const void *header,
  51         size_t len
  52 );
  53
  54 extern void kripto_authstream_tag
  55 (
  56         kripto_authstream *s,
  57         void *tag,
  58         unsigned int len
  59 );
  60
  61 extern void kripto_authstream_destroy(kripto_authstream *s);
  62
  63 extern unsigned int kripto_authstream_multof(const kripto_authstream *s);
  64
  65 extern const kripto_authstream_desc *kripto_authstream_getdesc(const kripto_authstream *s);
  66
  67 extern unsigned int kripto_authstream_maxkey(const kripto_authstream_desc *desc);
  68
  69 extern unsigned int kripto_authstream_maxiv(const kripto_authstream_desc *desc);
  70
  71 extern unsigned int kripto_authstream_maxtag(const kripto_authstream_desc *desc);
  72
  73 #endif