signature.c File Reference

#include "wizard/studio.h"
#include "wizard/exception.h"
#include "wizard/exception-private.h"
#include "wizard/memory_.h"
#include "wizard/signature.h"
#include "wizard/string_.h"

Defines
#define	Trunc32(x)   ((x) & 0xffffffffUL)
#define	Ch(x, y, z)   (((x) & (y)) ^ (~(x) & (z)))
#define	Maj(x, y, z)   (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
#define	RotateRight(x, n)   Trunc32((((x) >> (n)) | ((x) << (32-(n)))))
#define	Sigma0(x)   (RotateRight(x,7) ^ RotateRight(x,18) ^ Trunc32((x) >> 3))
#define	Sigma1(x)   (RotateRight(x,17) ^ RotateRight(x,19) ^ Trunc32((x) >> 10))
#define	Suma0(x)   (RotateRight(x,2) ^ RotateRight(x,13) ^ RotateRight(x,22))
#define	Suma1(x)   (RotateRight(x,6) ^ RotateRight(x,11) ^ RotateRight(x,25))
Functions
static void	TransformSignature (SignatureInfo *)
WizardExport void	FinalizeSignature (SignatureInfo *signature_info)
WizardExport void	GetSignatureInfo (SignatureInfo *signature_info)
WizardExport void	UpdateSignature (SignatureInfo *signature_info, const unsigned char *message, const size_t length)

---

Define Documentation

#define Ch	(		x,
			y,
			z
	)			(((x) & (y)) ^ (~(x) & (z)))

Referenced by TransformSignature().

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

Referenced by TransformSignature().

#define RotateRight	(		x,
			n
	)			Trunc32((((x) >> (n)) | ((x) << (32-(n)))))

#define Sigma0

(

x

)

(RotateRight(x,7) ^ RotateRight(x,18) ^ Trunc32((x) >> 3))

#define Sigma1

(

x

)

(RotateRight(x,17) ^ RotateRight(x,19) ^ Trunc32((x) >> 10))

#define Suma0

(

x

)

(RotateRight(x,2) ^ RotateRight(x,13) ^ RotateRight(x,22))

#define Suma1

(

x

)

(RotateRight(x,6) ^ RotateRight(x,11) ^ RotateRight(x,25))

#define Trunc32

(

x

)

((x) & 0xffffffffUL)

Referenced by TransformSignature(), and UpdateSignature().

---

Function Documentation

WizardExport void FinalizeSignature

(

SignatureInfo *

signature_info

)

References _SignatureInfo::high_order, _SHA512Info::high_order, _SignatureInfo::low_order, _SHA512Info::low_order, _SignatureInfo::message, ResetWizardMemory(), _SignatureInfo::signature, TransformSignature(), WizardSignature, and WizardSignatureSize.

WizardExport void GetSignatureInfo

(

SignatureInfo *

signature_info

)

References _SignatureInfo::digest, _SignatureInfo::lsb_first, _SHA512Info::lsb_first, ResetWizardMemory(), _SignatureInfo::signature, WizardFalse, and WizardTrue.

static void TransformSignature

(

SignatureInfo *

signature_info

)

[static]

References Ch, _SignatureInfo::digest, _SignatureInfo::lsb_first, Maj, _SignatureInfo::message, Sigma0, Sigma1, Suma0, Suma1, Trunc32, and WizardFalse.

Referenced by FinalizeSignature(), and UpdateSignature().

WizardExport void UpdateSignature	(	SignatureInfo *	signature_info,
		const unsigned char *	message,
		const size_t	length
	)

References CopyWizardMemory(), _SignatureInfo::high_order, _SHA512Info::low_order, _SignatureInfo::low_order, _SignatureInfo::message, _SignatureInfo::offset, _SignatureInfo::signature, TransformSignature(), Trunc32, WizardSignature, and WizardSignatureSize.