rom_bignum.c File Reference

#include "rom_bignum.h"
#include "rom.h"
#include <stdint.h>

Typedefs
typedef uint8_t(*	scalarmul_init_t) (ECC_State *state)
typedef uint32_t *(*	invert_t) (ECC_State *state, uint32_t *in1)
typedef uint32_t(*	importmodulus_t) (uint32_t *out, const uint32_t *in1)
typedef uint32_t(*	importoperand_t) (ECC_State *state, uint32_t *out, const uint32_t *in1)
typedef uint32_t(*	exportoperand_t) (ECC_State *state, uint32_t *out, const uint32_t *in1)
typedef void(*	setoperand_t) (ECC_State *state, uint32_t *out, uint32_t inValue)
typedef void(*	mset_t) (ECC_State *state, uint32_t *in1, uint32_t size)
typedef void(*	mmult_t) (uint32_t *out, const uint32_t *in1, const uint32_t *in2, uint32_t *mod, uint32_t len)
typedef void(*	msub_t) (uint32_t *out, const uint32_t *in1, const uint32_t *in2, uint32_t *mod, uint32_t len)
typedef void(*	madd_t) (uint32_t *out, const uint32_t *in1, const uint32_t *in2, uint32_t *mod, uint32_t len)
typedef void(*	mout_t) (uint32_t *out, const uint32_t *in1, uint32_t *mod, uint32_t len)
typedef void(*	copy_t) (uint32_t *out, uint32_t *in1, uint32_t size)
typedef uint8_t(*	getbit_t) (uint32_t *in1, uint32_t *in2)

Functions
uint32_t *	INVERT (ECC_State *state, uint32_t *in1)
	Perform a modular inversion of the element at address in in1. More...
uint32_t	IMPORTMODULUS (uint32_t *out, const uint32_t *in1)
	Imports the integer in LV format found at address in1 into address out in modulus format [0, 0, LSW, ..., MSW]. Returns the wordsize of the imported modulus. More...
uint32_t	IMPORTOPERAND (ECC_State *state, uint32_t *out, const uint32_t *in1)
	Imports the integer in LV format found at address in1 into address out in operand format [LSW, ..., MSW, 0, ..., 0], making sure that the obtained array has LEN+1 words, thus truncating or right-padding with zeroes as needed. Returns the wordsize of the imported integer. More...
uint32_t	EXPORTOPERAND (ECC_State *state, uint32_t *out, const uint32_t *in1)
	Exports the integer found at address in1 to address out in LV format [LEN, LSW, ..., MSW]. Returns LEN. More...
void	SETOPERAND (ECC_State *state, uint32_t *out, uint32_t inValue)
	Writes the 32-bit integer in aux at address out in operand format. More...
void	mSET (ECC_State *state, uint32_t *in1, uint32_t size)
	Initializes the modulus at address in1 for later modular operations. Completes the modulus with the modulus-specific constant alpha = -1/m mod 2^64. More...
void	mMULT (uint32_t *out, const uint32_t *in1, const uint32_t *in2, uint32_t *mod, uint32_t len)
	Montgomery modular multiplication out = in1 * in2 * K mod MOD where K is the Montgomery factor K = 2^-(32*LEN) mod MOD. More...
void	mSUB (uint32_t *out, const uint32_t *in1, const uint32_t *in2, uint32_t *mod, uint32_t len)
	Computes out = in1 - in2 mod MOD. More...
void	mADD (uint32_t *out, const uint32_t *in1, const uint32_t *in2, uint32_t *mod, uint32_t len)
	Computes out = in1 + in2 mod MOD. More...
void	mOUT (uint32_t *out, const uint32_t *in1, uint32_t *mod, uint32_t len)
	Computes the scrict modular remainder out = in1 mod MOD < MOD. More...
void	COPY (uint32_t *out, uint32_t *in1, uint32_t size)
	Copies aux words from address in1 to address out. More...
uint8_t	GETBIT (uint32_t *in1, uint32_t *in2)
	Extract the bit of given index. More...
uint8_t	SCALARMUL_init (ECC_State *state)
	Initialization for scalar multiplication. More...

Variables
static const scalarmul_init_t	scalarmul_init = (scalarmul_init_t)(0x1000530f)
static const invert_t	invert = (invert_t)(0x10005e9d)
static const importmodulus_t	importmodulus = (importmodulus_t)(0x10004bf1)
static const importoperand_t	importoperand = (importoperand_t)(0x10004c1b)
static const exportoperand_t	exportoperand = (exportoperand_t)(0x10004c67)
static const setoperand_t	setoperand = (setoperand_t)(0x10004cb5)
static const mset_t	mset = (mset_t)(0x10004d0f)
static const mmult_t	mmult = (mmult_t)(0x10007229)
static const msub_t	msub = (msub_t)(0x10007875)
static const madd_t	madd = (madd_t)(0x1000714d)
static const mout_t	mout = (mout_t)(0x100077e1)
static const copy_t	copy = (copy_t)(0x10004cd9)
static const getbit_t	getbit = (getbit_t)(0x10005a1b)

Typedef Documentation

copy_t

typedef void(* copy_t) (uint32_t *out, uint32_t *in1, uint32_t size)

exportoperand_t

typedef uint32_t(* exportoperand_t) (ECC_State *state, uint32_t *out, const uint32_t *in1)

getbit_t

typedef uint8_t(* getbit_t) (uint32_t *in1, uint32_t *in2)

importmodulus_t

typedef uint32_t(* importmodulus_t) (uint32_t *out, const uint32_t *in1)

importoperand_t

typedef uint32_t(* importoperand_t) (ECC_State *state, uint32_t *out, const uint32_t *in1)

invert_t

typedef uint32_t*(* invert_t) (ECC_State *state, uint32_t *in1)

madd_t

typedef void(* madd_t) (uint32_t *out, const uint32_t *in1, const uint32_t *in2, uint32_t *mod, uint32_t len)

mmult_t

typedef void(* mmult_t) (uint32_t *out, const uint32_t *in1, const uint32_t *in2, uint32_t *mod, uint32_t len)

mout_t

typedef void(* mout_t) (uint32_t *out, const uint32_t *in1, uint32_t *mod, uint32_t len)

mset_t

typedef void(* mset_t) (ECC_State *state, uint32_t *in1, uint32_t size)

msub_t

typedef void(* msub_t) (uint32_t *out, const uint32_t *in1, const uint32_t *in2, uint32_t *mod, uint32_t len)

scalarmul_init_t

typedef uint8_t(* scalarmul_init_t) (ECC_State *state)

setoperand_t

typedef void(* setoperand_t) (ECC_State *state, uint32_t *out, uint32_t inValue)

Variable Documentation

copy

const copy_t copy = (copy_t)(0x10004cd9)

static

Referenced by COPY().

exportoperand

const exportoperand_t exportoperand = (exportoperand_t)(0x10004c67)

static

Referenced by EXPORTOPERAND().

getbit

const getbit_t getbit = (getbit_t)(0x10005a1b)

static

Referenced by GETBIT().

importmodulus

const importmodulus_t importmodulus = (importmodulus_t)(0x10004bf1)

static

Referenced by IMPORTMODULUS().

importoperand

const importoperand_t importoperand = (importoperand_t)(0x10004c1b)

static

Referenced by IMPORTOPERAND().

invert

const invert_t invert = (invert_t)(0x10005e9d)

static

Referenced by INVERT().

madd

const madd_t madd = (madd_t)(0x1000714d)

static

Referenced by mADD().

mmult

const mmult_t mmult = (mmult_t)(0x10007229)

static

Referenced by mMULT().

mout

const mout_t mout = (mout_t)(0x100077e1)

static

Referenced by mOUT().

mset

const mset_t mset = (mset_t)(0x10004d0f)

static

Referenced by mSET().

msub

const msub_t msub = (msub_t)(0x10007875)

static

Referenced by mSUB().

scalarmul_init

const scalarmul_init_t scalarmul_init = (scalarmul_init_t)(0x1000530f)

static

Referenced by SCALARMUL_init().

setoperand

const setoperand_t setoperand = (setoperand_t)(0x10004cb5)

static

Referenced by SETOPERAND().