siphash.h File Reference

#include <stdint.h>
#include <stddef.h>

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Functions
uint64_t	siphash24 (const void *src, size_t len, const uint8_t key[16])
	Compute SipHash-2-4 over a byte range using a 16-byte secret key.
void	cwist_generate_hash_seed (uint8_t key[16])
	Generates a random SipHash seed.

Function Documentation

cwist_generate_hash_seed()

void cwist_generate_hash_seed

(

uint8_t

key[16]

)

Generates a random SipHash seed.

uint8_t key[16];
cwist_generate_hash_seed(key);
uint64_t hash = siphash24(src, len, key);

Generates a random SipHash seed.

Parameters

key	Output buffer that receives the generated seed.

Definition at line 223 of file siphash.c.

References cap.

Referenced by cwist_query_map_create_in_arena().

siphash24()

uint64_t siphash24	(	const void *	src,
		size_t	len,
		const uint8_t	key[16]
	)

Compute SipHash-2-4 over a byte range using a 16-byte secret key.

siphash24: Computes a 64-bit hash using the SipHash-2-4 algorithm. @src: Pointer to the input data. @len: Length of the input data in bytes. @key: A 16-byte secret key (used as two 64-bit integers).

• Returns the 64-bit hash value.

Parameters

src	Input bytes to hash.
len	Number of bytes in src.
key	16-byte SipHash key.

Returns

64-bit keyed hash value.

Definition at line 52 of file siphash.c.

References cap.

Referenced by cwist_flash_get(), cwist_query_map_delete(), cwist_query_map_get(), and cwist_query_map_set().