sha512.c File Reference

#include "polarssl/sha512.h"

Go to the source code of this file.

Macros
#define	POLARSSL_SHA512_C
#define	polarssl_printf   printf
#define	GET_UINT64_BE(n, b, i)
#define	PUT_UINT64_BE(n, b, i)
#define	SHR(x, n)   (x >> n)
#define	ROTR(x, n)   (SHR(x,n) | (x << (64 - n)))
#define	S0(x)   (ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x, 7))
#define	S1(x)   (ROTR(x,19) ^ ROTR(x,61) ^ SHR(x, 6))
#define	S2(x)   (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))
#define	S3(x)   (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))
#define	F0(x, y, z)   ((x & y) | (z & (x | y)))
#define	F1(x, y, z)   (z ^ (x & (y ^ z)))
#define	P(a, b, c, d, e, f, g, h, x, K)

Functions
void	sha512_init (sha512_context *ctx)
	Initialize SHA-512 context. More...
void	sha512_free (sha512_context *ctx)
	Clear SHA-512 context. More...
void	sha512_starts (sha512_context *ctx, int is384)
	SHA-512 context setup. More...
void	sha512_process (sha512_context *ctx, const unsigned char data[128])
void	sha512_update (sha512_context *ctx, const unsigned char *input, size_t ilen)
	SHA-512 process buffer. More...
void	sha512_finish (sha512_context *ctx, unsigned char output[64])
	SHA-512 final digest. More...
void	sha512 (const unsigned char *input, size_t ilen, unsigned char output[64], int is384)
	Output = SHA-512( input buffer ) More...

Macro Definition Documentation

#define F0	(		x,
			y,
			z
	)		((x & y) | (z & (x | y)))

#define F1	(		x,
			y,
			z
	)		(z ^ (x & (y ^ z)))

#define GET_UINT64_BE	(		n,
			b,
			i
	)

Value:

{                                                       \
    (n) = ( (uint64_t) (b)[(i)    ] << 56 )       \
        | ( (uint64_t) (b)[(i) + 1] << 48 )       \
        | ( (uint64_t) (b)[(i) + 2] << 40 )       \
        | ( (uint64_t) (b)[(i) + 3] << 32 )       \
        | ( (uint64_t) (b)[(i) + 4] << 24 )       \
        | ( (uint64_t) (b)[(i) + 5] << 16 )       \
        | ( (uint64_t) (b)[(i) + 6] <<  8 )       \
        | ( (uint64_t) (b)[(i) + 7]       );      \
}

Definition at line 51 of file sha512.c.

#define P	(		a,
			b,
			c,
			d,
			e,
			f,
			g,
			h,
			x,
			K
	)

Value:

{                                               \
    temp1 = h + S3(e) + F1(e,f,g) + K + x;      \
    temp2 = S2(a) + F0(a,b,c);                  \
    d += temp1; h = temp1 + temp2;              \
}

#define polarssl_printf   printf

Definition at line 38 of file sha512.c.

#define POLARSSL_SHA512_C

Definition at line 28 of file sha512.c.

#define PUT_UINT64_BE	(		n,
			b,
			i
	)

Value:

{                                                       \
    (b)[(i)    ] = (unsigned char) ( (n) >> 56 );       \
    (b)[(i) + 1] = (unsigned char) ( (n) >> 48 );       \
    (b)[(i) + 2] = (unsigned char) ( (n) >> 40 );       \
    (b)[(i) + 3] = (unsigned char) ( (n) >> 32 );       \
    (b)[(i) + 4] = (unsigned char) ( (n) >> 24 );       \
    (b)[(i) + 5] = (unsigned char) ( (n) >> 16 );       \
    (b)[(i) + 6] = (unsigned char) ( (n) >>  8 );       \
    (b)[(i) + 7] = (unsigned char) ( (n)       );       \
}

Definition at line 65 of file sha512.c.

#define ROTR	(		x,
			n
	)		(SHR(x,n) | (x << (64 - n)))

#define S0

(

x

)

(ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x, 7))

#define S1

(

x

)

(ROTR(x,19) ^ ROTR(x,61) ^ SHR(x, 6))

#define S2

(

x

)

(ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))

#define S3

(

x

)

(ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))

#define SHR	(		x,
			n
	)		(x >> n)

Function Documentation

void sha512	(	const unsigned char *	input,
		size_t	ilen,
		unsigned char	output[64],
		int	is384
	)

Output = SHA-512( input buffer )

Parameters

input	buffer holding the data
ilen	length of the input data
output	SHA-384/512 checksum result
is384	0 = use SHA512, 1 = use SHA384

Definition at line 336 of file sha512.c.

void sha512_finish	(	sha512_context *	ctx,
		unsigned char	output[64]
	)

SHA-512 final digest.

Parameters

ctx	SHA-512 context
output	SHA-384/512 checksum result

Definition at line 298 of file sha512.c.

void sha512_free

(

sha512_context *

ctx

)

Clear SHA-512 context.

Parameters

ctx	SHA-512 context to be cleared

Definition at line 130 of file sha512.c.

void sha512_init

(

sha512_context *

ctx

)

Initialize SHA-512 context.

Parameters

ctx	SHA-512 context to be initialized

Definition at line 125 of file sha512.c.

void sha512_process	(	sha512_context *	ctx,
		const unsigned char	data[128]
	)

Definition at line 174 of file sha512.c.

void sha512_starts	(	sha512_context *	ctx,
		int	is384
	)

SHA-512 context setup.

Parameters

ctx	context to be initialized
is384	0 = use SHA512, 1 = use SHA384

Definition at line 141 of file sha512.c.

void sha512_update	(	sha512_context *	ctx,
		const unsigned char *	input,
		size_t	ilen
	)

SHA-512 process buffer.

Parameters

ctx	SHA-512 context
input	buffer holding the data
ilen	length of the input data

Definition at line 246 of file sha512.c.