sign.h File Reference

header of sign.c More...

#include "lib/rsa.h"
#include "lib/types.h"
#include <stdbool.h>

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Data Structures
struct	_Signature
struct	_Protected

Typedefs
typedef struct _Signature	Signature
typedef struct _Protected	Protected

Functions
Signature *	init_signature_raw (int64 *content, int size)
	initialize a signaure without copying the data !!! takes ownership of content More...
Signature *	init_signature (const int64 *content, int size)
	initialize a signaure More...
Signature *	copy_signature (const Signature *o)
	Copy a Signature object. More...
void	free_signature (Signature *sig)
	free a Signature object. More...
Signature *	sign (char *mess, Key *sKey)
	sign a message More...
char *	signature_to_str (const Signature *sgn)
	convert a signature to string More...
Signature *	str_to_signature (const char *str)
	parse a string to a signature More...
Signature *	str_to_signature_len (const char *str, size_t len)
	Converts a string to a signature, knowing it's length. More...
Protected *	init_protected (Key *pKey, char *mess, Signature *sgn)
	create a signed declaration More...
Protected *	init_protected_raw (Key *pKey, char *mess, Signature *sgn)
	create a signed declaration !!! Takes ownership of key, message and signature. More...
void	free_protected (Protected *pr)
	free a signed declaration and it's content More...
Protected *	copy_protected (const Protected *o)
	copy protected More...
bool	verify (const Protected *pr)
	checks if the signature matches the message More...
char *	protected_to_str (const Protected *prc)
	convert a signed Protected (declaration) to string. More...
Protected *	str_to_protected (const char *str)
	parse a string to a signed declaration More...
Protected *	str_to_protected_len (const char *str, size_t slen)
	parse a string to a signed declaration More...

Detailed Description

header of sign.c

Typedef Documentation

Protected

typedef struct _Protected Protected

Structure for storing a Protected (declaration).

Signature

typedef struct _Signature Signature

A struct for storing a signature

Function Documentation

copy_protected()

Protected * copy_protected

(

const Protected *

o

)

copy protected

Parameters

o	Protected to copy

Returns

Protected*

copy_signature()

Signature * copy_signature

(

const Signature *

o

)

Copy a Signature object.

Parameters

o

Returns

Signature*

free_protected()

void free_protected

(

Protected *

pr

)

free a signed declaration and it's content

Parameters

pr	: element to free

free_signature()

void free_signature

(

Signature *

sig

)

free a Signature object.

Parameters

sig	: signature to delete

init_protected()

Protected * init_protected	(	Key *	pKey,
		char *	mess,
		Signature *	sgn
	)

create a signed declaration

Parameters

pKey	: public key
mess	: associated message
sgn	: signed message

Returns

Protected*

init_protected_raw()

Protected * init_protected_raw	(	Key *	pKey,
		char *	mess,
		Signature *	sgn
	)

create a signed declaration !!! Takes ownership of key, message and signature.

Parameters

pKey	: public key
mess	: associated message
sgn	: signed message

Returns

Protected*

init_signature()

Signature * init_signature	(	const int64 *	content,
		int	size
	)

initialize a signaure

Parameters

content	: content of the signature
size	: size of content

Returns

Signature* : a new signature on the heap

init_signature_raw()

Signature * init_signature_raw	(	int64 *	content,
		int	size
	)

initialize a signaure without copying the data !!! takes ownership of content

Parameters

content	: content of the signature
size	: size of content

Returns

Signature* : a new signature on the heap

protected_to_str()

char * protected_to_str

(

const Protected *

prc

)

convert a signed Protected (declaration) to string.

Parameters

prc	: declaration to convert

Returns

char*

sign()

Signature * sign	(	char *	mess,
		Key *	sKey
	)

sign a message

Parameters

mess	: message to sign
sKey	: private key to sign the message with

Returns

Signature*

signature_to_str()

char * signature_to_str

(

const Signature *

sgn

)

convert a signature to string

Parameters

sgn	: signature to convert

Returns

char*

str_to_protected()

Protected * str_to_protected

(

const char *

str

)

parse a string to a signed declaration

Parameters

str	: string to parse

Returns

Protected*

str_to_protected_len()

Protected * str_to_protected_len	(	const char *	str,
		size_t	slen
	)

parse a string to a signed declaration

Parameters

str	: string to parse
slen	: length of the string

Returns

Protected*

str_to_signature()

Signature * str_to_signature

(

const char *

str

)

parse a string to a signature

Parameters

str

Returns

Signature*

str_to_signature_len()

Signature * str_to_signature_len	(	const char *	str,
		const size_t	len
	)

Converts a string to a signature, knowing it's length.

Parameters

str
len

Returns

Signature*

verify()

bool verify

(

const Protected *

pr

)

checks if the signature matches the message

Parameters

Protected*

: protected message

Returns

bool