siphash.c File Reference

(b76ad15ed0da636161de0243c547ee1e6fc95681)

#include <string.h>
#include <stdio.h>
#include "siphash.h"
#include <endian.h>

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Data Structures
struct	sip_interface_st

Macros
#define	SIP_HASH_STREAMING   1
#define	LITTLE_ENDIAN   __LITTLE_ENDIAN
#define	BIG_ENDIAN   __BIG_ENDIAN
#define	lo   u32[0]
#define	hi   u32[1]
#define	UNALIGNED_WORD_ACCESS   0
#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_ROUND(m, v0, v1, v2, v3)
#define	OR_BYTE(n)

Functions
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_hash13 (const uint8_t key[16], const uint8_t *data, size_t len)

Macro Definition Documentation

ADD64_TO

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

Definition at line 119 of file siphash.c.

BIG_ENDIAN

#define BIG_ENDIAN   __BIG_ENDIAN

Definition at line 24 of file siphash.c.

hi

#define hi   u32[1]

Definition at line 29 of file siphash.c.

LITTLE_ENDIAN

#define LITTLE_ENDIAN   __LITTLE_ENDIAN

Definition at line 21 of file siphash.c.

lo

#define lo   u32[0]

Definition at line 28 of file siphash.c.

OR_BYTE

#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)

ROTL64_TO

#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 98 of file siphash.c.

SIP_COMPRESS

#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 165 of file siphash.c.

SIP_HASH_STREAMING

#define SIP_HASH_STREAMING   1

Definition at line 5 of file siphash.c.

sip_init_state

#define sip_init_state   sip_init_state_bin.u64

Definition at line 145 of file siphash.c.

SIP_ROUND

#define SIP_ROUND	(		m,
			v0,
			v1,
			v2,
			v3
	)

Value:

do {                                    \
    XOR64_TO((v3), (m));                \
    SIP_COMPRESS(v0, v1, v2, v3);       \
    XOR64_TO((v0), (m));                \
} while (0)

Definition at line 396 of file siphash.c.

U32TO8_LE

#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 53 of file siphash.c.

U64TO8_LE

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

Definition at line 90 of file siphash.c.

U8TO32_LE

#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 49 of file siphash.c.

U8TO64_LE

#define U8TO64_LE

(

p

)

u8to64_le(p)

Definition at line 80 of file siphash.c.

UNALIGNED_WORD_ACCESS

#define UNALIGNED_WORD_ACCESS   0

Definition at line 46 of file siphash.c.

XOR64_INT

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

Definition at line 138 of file siphash.c.

XOR64_TO

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

Definition at line 129 of file siphash.c.

Function Documentation

sip_hash13()

uint64_t sip_hash13	(	const uint8_t	key[16],
		const uint8_t *	data,
		size_t	len
	)

Definition at line 404 of file siphash.c.

References key, last, len, OR_BYTE, SIP_COMPRESS, sip_init_state, SIP_ROUND, U8TO64_LE, XOR64_INT, and XOR64_TO.

sip_hash_digest()

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 370 of file siphash.c.

References sip_hash_final(), and sip_hash_update().

sip_hash_digest_integer()

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

Definition at line 377 of file siphash.c.

References sip_hash_final_integer(), and sip_hash_update().

sip_hash_dump()

void sip_hash_dump

(

sip_hash *

h

)

Definition at line 390 of file siphash.c.

sip_hash_final()

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

Definition at line 348 of file siphash.c.

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

Referenced by sip_hash_digest().

sip_hash_final_integer()

int sip_hash_final_integer	(	sip_hash *	h,
		uint64_t *	digest
	)

Definition at line 363 of file siphash.c.

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

Referenced by sip_hash_digest_integer().

sip_hash_free()

void sip_hash_free

(

sip_hash *

h

)

Definition at line 384 of file siphash.c.

References free().

sip_hash_init()

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

Definition at line 329 of file siphash.c.

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

Referenced by sip_hash_new().

sip_hash_new()

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

Definition at line 320 of file siphash.c.

References key, malloc, NULL, and sip_hash_init().

sip_hash_update()

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

Definition at line 341 of file siphash.c.

Referenced by sip_hash_digest(), and sip_hash_digest_integer().

Variable Documentation

bin

char bin[32]

Definition at line 142 of file siphash.c.

Referenced by rb_load_with_builtin_functions(), st_insert(), st_insert2(), st_lookup(), st_shift(), and st_update().

u64

uint64_t u64[4]

Definition at line 143 of file siphash.c.