sha256.c File Reference

#include <gpac/tools.h>

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Functions
static void	sha256_endian_reverse64 (u64 input, u8 *output)
static u32	sha256_endian_read32 (u8 *input)
static void	sha256_endian_reverse32 (u32 input, u8 *output)
static u32	sha256_ror (u32 input, u32 by)
GF_EXPORT void	gf_sha256_csum (const void *data, u64 len, u8 output[GF_SHA256_DIGEST_SIZE])

Variables
static const u32	sha256_initial_h [8]
static const u32	sha256_round_k [64]

Function Documentation

sha256_endian_reverse64()

static void sha256_endian_reverse64 ( u64  input, u8 *  output  )

static

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sha256_endian_read32()

static u32 sha256_endian_read32 ( u8 *  input )

static

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sha256_endian_reverse32()

static void sha256_endian_reverse32 ( u32  input, u8 *  output  )

static

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sha256_ror()

static u32 sha256_ror ( u32  input, u32  by  )

static

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gf_sha256_csum()

GF_EXPORT void gf_sha256_csum	(	const void *	buf,
		u64	buflen,
		u8	digest[GF_SHA256_DIGEST_SIZE]
	)

gets SHA-256 of input buffer

Parameters

buf	input buffer to hash
buflen	size of input buffer in bytes
digest	buffer to store message digest

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Variable Documentation

sha256_initial_h

const u32 sha256_initial_h[8]

static

Initial value:

= { 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
        0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19 }

sha256_round_k

const u32 sha256_round_k[64]

static

Initial value:

= { 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1,
        0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
        0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786,
        0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
        0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147,
        0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
        0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b,
        0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
        0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a,
        0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
        0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 }