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      1 #ifndef crypto_pwhash_scryptsalsa208sha256_H
      2 #define crypto_pwhash_scryptsalsa208sha256_H
      3 
      4 #include <limits.h>
      5 #include <stddef.h>
      6 #include <stdint.h>
      7 
      8 #include "export.h"
      9 
     10 #ifdef __cplusplus
     11 # ifdef __GNUC__
     12 #  pragma GCC diagnostic ignored "-Wlong-long"
     13 # endif
     14 extern "C" {
     15 #endif
     16 
     17 #define crypto_pwhash_scryptsalsa208sha256_BYTES_MIN 16U
     18 SODIUM_EXPORT
     19 size_t crypto_pwhash_scryptsalsa208sha256_bytes_min(void);
     20 
     21 #define crypto_pwhash_scryptsalsa208sha256_BYTES_MAX \
     22     SODIUM_MIN(SODIUM_SIZE_MAX, 0x1fffffffe0ULL)
     23 SODIUM_EXPORT
     24 size_t crypto_pwhash_scryptsalsa208sha256_bytes_max(void);
     25 
     26 #define crypto_pwhash_scryptsalsa208sha256_PASSWD_MIN 0U
     27 SODIUM_EXPORT
     28 size_t crypto_pwhash_scryptsalsa208sha256_passwd_min(void);
     29 
     30 #define crypto_pwhash_scryptsalsa208sha256_PASSWD_MAX SODIUM_SIZE_MAX
     31 SODIUM_EXPORT
     32 size_t crypto_pwhash_scryptsalsa208sha256_passwd_max(void);
     33 
     34 #define crypto_pwhash_scryptsalsa208sha256_SALTBYTES 32U
     35 SODIUM_EXPORT
     36 size_t crypto_pwhash_scryptsalsa208sha256_saltbytes(void);
     37 
     38 #define crypto_pwhash_scryptsalsa208sha256_STRBYTES 102U
     39 SODIUM_EXPORT
     40 size_t crypto_pwhash_scryptsalsa208sha256_strbytes(void);
     41 
     42 #define crypto_pwhash_scryptsalsa208sha256_STRPREFIX "$7$"
     43 SODIUM_EXPORT
     44 const char *crypto_pwhash_scryptsalsa208sha256_strprefix(void);
     45 
     46 #define crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_MIN 32768U
     47 SODIUM_EXPORT
     48 size_t crypto_pwhash_scryptsalsa208sha256_opslimit_min(void);
     49 
     50 #define crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_MAX 4294967295U
     51 SODIUM_EXPORT
     52 size_t crypto_pwhash_scryptsalsa208sha256_opslimit_max(void);
     53 
     54 #define crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_MIN 16777216U
     55 SODIUM_EXPORT
     56 size_t crypto_pwhash_scryptsalsa208sha256_memlimit_min(void);
     57 
     58 #define crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_MAX \
     59     SODIUM_MIN(SIZE_MAX, 68719476736ULL)
     60 SODIUM_EXPORT
     61 size_t crypto_pwhash_scryptsalsa208sha256_memlimit_max(void);
     62 
     63 #define crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_INTERACTIVE 524288U
     64 SODIUM_EXPORT
     65 size_t crypto_pwhash_scryptsalsa208sha256_opslimit_interactive(void);
     66 
     67 #define crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_INTERACTIVE 16777216U
     68 SODIUM_EXPORT
     69 size_t crypto_pwhash_scryptsalsa208sha256_memlimit_interactive(void);
     70 
     71 #define crypto_pwhash_scryptsalsa208sha256_OPSLIMIT_SENSITIVE 33554432U
     72 SODIUM_EXPORT
     73 size_t crypto_pwhash_scryptsalsa208sha256_opslimit_sensitive(void);
     74 
     75 #define crypto_pwhash_scryptsalsa208sha256_MEMLIMIT_SENSITIVE 1073741824U
     76 SODIUM_EXPORT
     77 size_t crypto_pwhash_scryptsalsa208sha256_memlimit_sensitive(void);
     78 
     79 SODIUM_EXPORT
     80 int crypto_pwhash_scryptsalsa208sha256(unsigned char * const out,
     81                                        unsigned long long outlen,
     82                                        const char * const passwd,
     83                                        unsigned long long passwdlen,
     84                                        const unsigned char * const salt,
     85                                        unsigned long long opslimit,
     86                                        size_t memlimit)
     87             __attribute__ ((warn_unused_result));
     88 
     89 SODIUM_EXPORT
     90 int crypto_pwhash_scryptsalsa208sha256_str(char out[crypto_pwhash_scryptsalsa208sha256_STRBYTES],
     91                                            const char * const passwd,
     92                                            unsigned long long passwdlen,
     93                                            unsigned long long opslimit,
     94                                            size_t memlimit)
     95             __attribute__ ((warn_unused_result));
     96 
     97 SODIUM_EXPORT
     98 int crypto_pwhash_scryptsalsa208sha256_str_verify(const char str[crypto_pwhash_scryptsalsa208sha256_STRBYTES],
     99                                                   const char * const passwd,
    100                                                   unsigned long long passwdlen)
    101             __attribute__ ((warn_unused_result));
    102 
    103 SODIUM_EXPORT
    104 int crypto_pwhash_scryptsalsa208sha256_ll(const uint8_t * passwd, size_t passwdlen,
    105                                           const uint8_t * salt, size_t saltlen,
    106                                           uint64_t N, uint32_t r, uint32_t p,
    107                                           uint8_t * buf, size_t buflen)
    108             __attribute__ ((warn_unused_result));
    109 
    110 SODIUM_EXPORT
    111 int crypto_pwhash_scryptsalsa208sha256_str_needs_rehash(const char str[crypto_pwhash_scryptsalsa208sha256_STRBYTES],
    112                                                         unsigned long long opslimit,
    113                                                         size_t memlimit)
    114             __attribute__ ((warn_unused_result));
    115 
    116 #ifdef __cplusplus
    117 }
    118 #endif
    119 
    120 #endif
    121