Ruby  2.0.0p481(2014-05-08revision45883)
Data Structures | Defines | Functions | Variables
siphash.c File Reference
#include <string.h>
#include <stdio.h>
#include "siphash.h"
#include <endian.h>
Include dependency graph for siphash.c:
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Go to the source code of this file.

Data Structures

struct  sip_interface_st

Defines

#define SIP_HASH_STREAMING   1
#define LITTLE_ENDIAN   __LITTLE_ENDIAN
#define BIG_ENDIAN   __BIG_ENDIAN
#define lo   u32[0]
#define hi   u32[1]
#define U8TO32_LE(p)
#define U32TO8_LE(p, v)
#define U8TO64_LE(p)   u8to64_le(p)
#define U64TO8_LE(p, v)   u64to8_le(p, v)
#define ROTL64_TO(v, s)
#define ADD64_TO(v, s)   add64_to(&(v), (s))
#define XOR64_TO(v, s)   xor64_to(&(v), (s))
#define XOR64_INT(v, x)   ((v).lo ^= (x))
#define sip_init_state   sip_init_state_bin.u64
#define SIP_COMPRESS(v0, v1, v2, v3)
#define SIP_2_ROUND(m, v0, v1, v2, v3)
#define OR_BYTE(n)

Functions

static uint64_t u8to64_le (const uint8_t *p)
static void u64to8_le (uint8_t *p, uint64_t v)
static uint64_t * rotl64_to (uint64_t *v, unsigned int s)
static uint64_t * rotl64_swap (uint64_t *v)
static uint64_t * add64_to (uint64_t *v, const uint64_t s)
static uint64_t * xor64_to (uint64_t *v, const uint64_t s)
static void int_sip_init (sip_state *state, const uint8_t *key)
static void int_sip_update (sip_state *state, const uint8_t *data, size_t len)
static void int_sip_final (sip_state *state, uint64_t *digest)
static void int_sip_dump (sip_state *state)
static void int_sip_init (sip_state *state, const uint8_t key[16])
static void int_sip_round (sip_state *state, int n)
static void int_sip_update_block (sip_state *state, uint64_t m)
static void int_sip_pre_update (sip_state *state, const uint8_t **pdata, size_t *plen)
static void int_sip_post_update (sip_state *state, const uint8_t *data, size_t len)
static void int_sip_pad_final_block (sip_state *state)
sip_hash * sip_hash_new (const uint8_t key[16], int c, int d)
sip_hash * sip_hash_init (sip_hash *h, const uint8_t key[16], int c, int d)
int sip_hash_update (sip_hash *h, const uint8_t *msg, size_t len)
int sip_hash_final (sip_hash *h, uint8_t **digest, size_t *len)
int sip_hash_final_integer (sip_hash *h, uint64_t *digest)
int sip_hash_digest (sip_hash *h, const uint8_t *data, size_t data_len, uint8_t **digest, size_t *digest_len)
int sip_hash_digest_integer (sip_hash *h, const uint8_t *data, size_t data_len, uint64_t *digest)
void sip_hash_free (sip_hash *h)
void sip_hash_dump (sip_hash *h)
uint64_t sip_hash24 (const uint8_t key[16], const uint8_t *data, size_t len)

Variables

union {
   char   bin [32]
   uint64_t   u64 [4]
} sip_init_state_bin
static const sip_interface sip_methods

Define Documentation

#define ADD64_TO (   v,
  s 
)    add64_to(&(v), (s))

Definition at line 111 of file siphash.c.

#define BIG_ENDIAN   __BIG_ENDIAN

Definition at line 17 of file siphash.c.

#define hi   u32[1]

Definition at line 22 of file siphash.c.

Referenced by assign_heap_slot(), and is_pointer_to_heap().

#define LITTLE_ENDIAN   __LITTLE_ENDIAN

Definition at line 14 of file siphash.c.

#define lo   u32[0]

Definition at line 21 of file siphash.c.

Referenced by assign_heap_slot(), big2dbl(), and is_pointer_to_heap().

#define OR_BYTE (   n)
Value:
do { \
        if (n >= 4) \
            last.hi |= ((uint32_t) end[n]) << ((n) >= 4 ? (n) * 8 - 32 : 0); \
        else \
            last.lo |= ((uint32_t) end[n]) << ((n) >= 4 ? 0 : (n) * 8); \
    } while (0)

Referenced by sip_hash24().

#define ROTL64_TO (   v,
  s 
)
Value:
((s) > 32 ? rotl64_swap(rotl64_to(&(v), (s) - 32)) : \
                         (s) == 32 ? rotl64_swap(&(v)) : rotl64_to(&(v), (s)))

Definition at line 90 of file siphash.c.

#define SIP_2_ROUND (   m,
  v0,
  v1,
  v2,
  v3 
)
Value:
do {                                    \
    XOR64_TO((v3), (m));                \
    SIP_COMPRESS(v0, v1, v2, v3);       \
    SIP_COMPRESS(v0, v1, v2, v3);       \
    XOR64_TO((v0), (m));                \
} while (0)

Definition at line 388 of file siphash.c.

Referenced by sip_hash24().

#define SIP_COMPRESS (   v0,
  v1,
  v2,
  v3 
)
Value:
do {                                    \
    ADD64_TO((v0), (v1));               \
    ADD64_TO((v2), (v3));               \
    ROTL64_TO((v1), 13);                \
    ROTL64_TO((v3), 16);                \
    XOR64_TO((v1), (v0));               \
    XOR64_TO((v3), (v2));               \
    ROTL64_TO((v0), 32);                \
    ADD64_TO((v2), (v1));               \
    ADD64_TO((v0), (v3));               \
    ROTL64_TO((v1), 17);                \
    ROTL64_TO((v3), 21);                \
    XOR64_TO((v1), (v2));               \
    XOR64_TO((v3), (v0));               \
    ROTL64_TO((v2), 32);                \
} while(0)

Definition at line 157 of file siphash.c.

Referenced by int_sip_round(), and sip_hash24().

#define SIP_HASH_STREAMING   1

Definition at line 5 of file siphash.c.

#define sip_init_state   sip_init_state_bin.u64

Definition at line 137 of file siphash.c.

Referenced by int_sip_init(), and sip_hash24().

#define U32TO8_LE (   p,
  v 
)
Value:
do {                                    \
    (p)[0] = (uint8_t)((v)      );      \
    (p)[1] = (uint8_t)((v) >>  8);      \
    (p)[2] = (uint8_t)((v) >> 16);      \
    (p)[3] = (uint8_t)((v) >> 24);      \
} while (0)

Definition at line 45 of file siphash.c.

Referenced by u64to8_le().

#define U64TO8_LE (   p,
  v 
)    u64to8_le(p, v)

Definition at line 82 of file siphash.c.

Referenced by sip_hash_final().

#define U8TO32_LE (   p)
Value:
(((uint32_t)((p)[0])       ) | ((uint32_t)((p)[1]) <<  8) |     \
     ((uint32_t)((p)[2]) <<  16) | ((uint32_t)((p)[3]) << 24))          \

Definition at line 41 of file siphash.c.

Referenced by u8to64_le().

#define U8TO64_LE (   p)    u8to64_le(p)

Definition at line 72 of file siphash.c.

Referenced by int_sip_final(), int_sip_init(), int_sip_pre_update(), int_sip_update(), and sip_hash24().

#define XOR64_INT (   v,
  x 
)    ((v).lo ^= (x))

Definition at line 130 of file siphash.c.

Referenced by int_sip_final(), and sip_hash24().

#define XOR64_TO (   v,
  s 
)    xor64_to(&(v), (s))

Definition at line 121 of file siphash.c.

Referenced by int_sip_final(), int_sip_init(), int_sip_update_block(), and sip_hash24().

Function Documentation

static uint64_t* add64_to ( uint64_t *  v,
const uint64_t  s 
) [inline, static]

Definition at line 113 of file siphash.c.

static void int_sip_dump ( sip_state *  state) [static]

Definition at line 177 of file siphash.c.

References sip_state::v.

Referenced by sip_hash_dump().

static void int_sip_final ( sip_state *  state,
uint64_t *  digest 
) [static]

Definition at line 292 of file siphash.c.

References sip_state::buf, sip_state::d, int_sip_pad_final_block(), int_sip_round(), int_sip_update_block(), U8TO64_LE, sip_state::v, XOR64_INT, and XOR64_TO.

static void int_sip_init ( sip_state *  state,
const uint8_t *  key 
) [static]
static void int_sip_init ( sip_state *  state,
const uint8_t  key[16] 
) [static]

Definition at line 191 of file siphash.c.

References sip_init_state, U8TO64_LE, sip_state::v, and XOR64_TO.

static void int_sip_pad_final_block ( sip_state *  state) [inline, static]

Definition at line 281 of file siphash.c.

References sip_state::buf, sip_state::buflen, and sip_state::msglen_byte.

Referenced by int_sip_final().

static void int_sip_post_update ( sip_state *  state,
const uint8_t *  data,
size_t  len 
) [inline, static]

Definition at line 240 of file siphash.c.

References sip_state::buf, and sip_state::buflen.

Referenced by int_sip_update().

static void int_sip_pre_update ( sip_state *  state,
const uint8_t **  pdata,
size_t *  plen 
) [inline, static]

Definition at line 223 of file siphash.c.

References sip_state::buf, sip_state::buflen, int_sip_update_block(), and U8TO64_LE.

Referenced by int_sip_update().

static void int_sip_round ( sip_state *  state,
int  n 
) [inline, static]

Definition at line 205 of file siphash.c.

References SIP_COMPRESS, and sip_state::v.

Referenced by int_sip_final(), and int_sip_update_block().

static void int_sip_update ( sip_state *  state,
const uint8_t *  data,
size_t  len 
) [static]

Definition at line 250 of file siphash.c.

References int_sip_post_update(), int_sip_pre_update(), int_sip_update_block(), sip_state::msglen_byte, and U8TO64_LE.

static void int_sip_update_block ( sip_state *  state,
uint64_t  m 
) [inline, static]

Definition at line 215 of file siphash.c.

References sip_state::c, int_sip_round(), sip_state::v, and XOR64_TO.

Referenced by int_sip_final(), int_sip_pre_update(), and int_sip_update().

static uint64_t* rotl64_swap ( uint64_t *  v) [inline, static]

Definition at line 103 of file siphash.c.

static uint64_t* rotl64_to ( uint64_t *  v,
unsigned int  s 
) [inline, static]

Definition at line 93 of file siphash.c.

uint64_t sip_hash24 ( const uint8_t  key[16],
const uint8_t *  data,
size_t  len 
)

Definition at line 397 of file siphash.c.

References last, OR_BYTE, SIP_2_ROUND, SIP_COMPRESS, sip_init_state, U8TO64_LE, XOR64_INT, and XOR64_TO.

int sip_hash_digest ( sip_hash *  h,
const uint8_t *  data,
size_t  data_len,
uint8_t **  digest,
size_t *  digest_len 
)

Definition at line 362 of file siphash.c.

References sip_hash_final(), and sip_hash_update().

int sip_hash_digest_integer ( sip_hash *  h,
const uint8_t *  data,
size_t  data_len,
uint64_t *  digest 
)

Definition at line 369 of file siphash.c.

References sip_hash_final_integer(), and sip_hash_update().

void sip_hash_dump ( sip_hash *  h)

Definition at line 382 of file siphash.c.

References int_sip_dump(), and sip_hash::state.

int sip_hash_final ( sip_hash *  h,
uint8_t **  digest,
size_t *  len 
)

Definition at line 340 of file siphash.c.

References sip_interface_st::final, malloc, sip_hash::methods, sip_hash::state, and U64TO8_LE.

Referenced by sip_hash_digest().

int sip_hash_final_integer ( sip_hash *  h,
uint64_t *  digest 
)

Definition at line 355 of file siphash.c.

References sip_interface_st::final, sip_hash::methods, and sip_hash::state.

Referenced by sip_hash_digest_integer().

void sip_hash_free ( sip_hash *  h)

Definition at line 376 of file siphash.c.

References free.

sip_hash* sip_hash_init ( sip_hash *  h,
const uint8_t  key[16],
int  c,
int  d 
)

Definition at line 321 of file siphash.c.

References sip_state::buflen, sip_state::c, sip_state::d, sip_interface_st::init, sip_hash::methods, sip_state::msglen_byte, sip_methods, and sip_hash::state.

Referenced by sip_hash_new().

sip_hash* sip_hash_new ( const uint8_t  key[16],
int  c,
int  d 
)

Definition at line 312 of file siphash.c.

References malloc, NULL, and sip_hash_init().

int sip_hash_update ( sip_hash *  h,
const uint8_t *  msg,
size_t  len 
)

Definition at line 333 of file siphash.c.

References sip_hash::methods, sip_hash::state, and sip_interface_st::update.

Referenced by sip_hash_digest(), and sip_hash_digest_integer().

static void u64to8_le ( uint8_t *  p,
uint64_t  v 
) [inline, static]

Definition at line 84 of file siphash.c.

References U32TO8_LE.

static uint64_t u8to64_le ( const uint8_t *  p) [inline, static]

Definition at line 74 of file siphash.c.

References U8TO32_LE.

static uint64_t* xor64_to ( uint64_t *  v,
const uint64_t  s 
) [inline, static]

Definition at line 123 of file siphash.c.

Variable Documentation

char bin[32]

Definition at line 134 of file siphash.c.

union { ... } sip_init_state_bin [static]
const sip_interface sip_methods [static]
Initial value:
 {
    int_sip_init,
    int_sip_update,
    int_sip_final
}

Definition at line 150 of file siphash.c.

Referenced by sip_hash_init().

uint64_t u64[4]

Definition at line 135 of file siphash.c.

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