rsamath.c File Reference

#include "rsamath.h"
#include <limits.h>
#include <string.h>

Go to the source code of this file.

Functions
static mp_result	s_rsa_transform (mp_int msg, mp_int exp, mp_int mod, mp_int out)
mp_result	rsa_i2osp (mp_int z, unsigned char *out, int len)
mp_result	rsa_os2ip (mp_int z, unsigned char *in, int len)
mp_result	rsa_rsaep (mp_int msg, mp_int exp, mp_int mod, mp_int cipher)
mp_result	rsa_rsadp (mp_int cipher, mp_int exp, mp_int mod, mp_int msg)
mp_result	rsa_rsasp (mp_int msg, mp_int exp, mp_int mod, mp_int signature)
mp_result	rsa_rsavp (mp_int signature, mp_int exp, mp_int mod, mp_int msg)
int	rsa_max_message_len (mp_int mod)
mp_result	rsa_pkcs1v15_encode (unsigned char *buf, int msg_len, int buf_len, int tag, random_f filler)
mp_result	rsa_pkcs1v15_decode (unsigned char *buf, int buf_len, int tag, int *msg_len)

Function Documentation

rsa_i2osp()

mp_result rsa_i2osp	(	mp_int	z,
		unsigned char *	out,
		int	len
	)

Definition at line 36 of file rsamath.c.

References mp_int_binary_len, mp_int_to_binary, MP_OK, and MP_RANGE.

rsa_max_message_len()

int rsa_max_message_len

(

mp_int

mod

)

Definition at line 76 of file rsamath.c.

References mp_int_count_bits.

rsa_os2ip()

mp_result rsa_os2ip	(	mp_int	z,
		unsigned char *	in,
		int	len
	)

Definition at line 50 of file rsamath.c.

References mp_int_read_binary.

rsa_pkcs1v15_decode()

mp_result rsa_pkcs1v15_decode	(	unsigned char *	buf,
		int	buf_len,
		int	tag,
		int *	msg_len
	)

Definition at line 114 of file rsamath.c.

References MP_OK, MP_UNDEF, and tag().

Referenced by main().

rsa_pkcs1v15_encode()

mp_result rsa_pkcs1v15_encode	(	unsigned char *	buf,
		int	msg_len,
		int	buf_len,
		int	tag,
		random_f	filler
	)

Definition at line 87 of file rsamath.c.

References MP_OK, MP_RANGE, and tag().

Referenced by main().

rsa_rsadp()

mp_result rsa_rsadp	(	mp_int	cipher,
		mp_int	exp,
		mp_int	mod,
		mp_int	msg
	)

Definition at line 60 of file rsamath.c.

References s_rsa_transform().

rsa_rsaep()

mp_result rsa_rsaep	(	mp_int	msg,
		mp_int	exp,
		mp_int	mod,
		mp_int	cipher
	)

Definition at line 55 of file rsamath.c.

References s_rsa_transform().

rsa_rsasp()

mp_result rsa_rsasp	(	mp_int	msg,
		mp_int	exp,
		mp_int	mod,
		mp_int	signature
	)

Definition at line 65 of file rsamath.c.

References s_rsa_transform().

rsa_rsavp()

mp_result rsa_rsavp	(	mp_int	signature,
		mp_int	exp,
		mp_int	mod,
		mp_int	msg
	)

Definition at line 70 of file rsamath.c.

References s_rsa_transform().

s_rsa_transform()

static mp_result s_rsa_transform ( mp_int  msg, mp_int  exp, mp_int  mod, mp_int  out  )

static

Definition at line 139 of file rsamath.c.

References mp_int_compare, mp_int_compare_zero, mp_int_exptmod, and MP_RANGE.

Referenced by rsa_rsadp(), rsa_rsaep(), rsa_rsasp(), and rsa_rsavp().