137 lines
4.5 KiB
C++
137 lines
4.5 KiB
C++
/*
|
|
* Copyright (c) 2012-2020 MIRACL UK Ltd.
|
|
*
|
|
* This file is part of MIRACL Core
|
|
* (see https://github.com/miracl/core).
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
/**
|
|
* @file mpin.h
|
|
* @author Mike Scott and Kealan McCusker
|
|
* @date 2nd June 2015
|
|
* @brief M-Pin Header file
|
|
*
|
|
* Allows some user configuration
|
|
* defines structures
|
|
* declares functions
|
|
*
|
|
*/
|
|
|
|
#ifndef MPIN_BN158_H
|
|
#define MPIN_BN158_H
|
|
|
|
#include "pair_BN158.h"
|
|
//#include "pbc_support.h"
|
|
|
|
using namespace core;
|
|
|
|
|
|
namespace BN158 {
|
|
|
|
/* Field size is assumed to be greater than or equal to group size */
|
|
|
|
#define PGS_BN158 MODBYTES_B160_56 /**< MPIN Group Size */
|
|
#define PFS_BN158 MODBYTES_B160_56 /**< MPIN Field Size */
|
|
|
|
#define MPIN_OK 0 /**< Function completed without error */
|
|
#define MPIN_INVALID_POINT -14 /**< Point is NOT on the curve */
|
|
#define MPIN_BAD_PIN -19 /**< Bad PIN number entered */
|
|
|
|
#define MAXPIN 10000 /**< max PIN */
|
|
#define PBLEN 14 /**< max length of PIN in bits */
|
|
|
|
//#define PAS_BN158 16 /**< MPIN Symmetric Key Size 128 bits */
|
|
//#define HASH_TYPE_MPIN_BN158 SHA256 /**< Choose Hash function */
|
|
|
|
/* MPIN support functions */
|
|
|
|
/* MPIN primitives */
|
|
|
|
/** @brief Encode a string to a curve point (in constant time)
|
|
*
|
|
@param DST is the Domain Separation Tag
|
|
@param ID is the input string
|
|
@param HID is the output point in G1
|
|
*/
|
|
void MPIN_ENCODE_TO_CURVE(octet *DST,octet *ID,octet *HID);
|
|
|
|
/** @brief Extract a PIN number from a client secret
|
|
*
|
|
@param HID is the hashed-to-curve input client identity
|
|
@param pin is an input PIN number
|
|
@param CS is the client secret from which the PIN is to be extracted
|
|
@return 0 or an error code
|
|
*/
|
|
int MPIN_EXTRACT_PIN(octet *HID, int pin, octet *CS);
|
|
|
|
/** @brief Perform first pass of the client side of the 3-pass version of the M-Pin protocol
|
|
*
|
|
@param HID is the hashed-to-curve input client identity
|
|
@param R is a pointer to a cryptographically secure random number generator
|
|
@param x an output internally randomly generated if R!=NULL, otherwise must be provided as an input
|
|
@param pin is the input PIN number
|
|
@param T is the input M-Pin token (the client secret with PIN portion removed)
|
|
@param S is the reconstructed client secret
|
|
@param U is output = x.H(ID)
|
|
@return 0 or an error code
|
|
*/
|
|
int MPIN_CLIENT_1(octet *HID, csprng *R, octet *x, int pin, octet *T, octet *S, octet *U);
|
|
/** @brief Generate a random group element
|
|
*
|
|
@param R is a pointer to a cryptographically secure random number generator
|
|
@param S is the output random octet
|
|
@return 0 or an error code
|
|
*/
|
|
int MPIN_RANDOM_GENERATE(csprng *R, octet *S);
|
|
/** @brief Perform second pass of the client side of the 3-pass version of the M-Pin protocol
|
|
*
|
|
@param x an input, a locally generated random number
|
|
@param y an input random challenge from the server
|
|
@param V on output = -(x+y).V
|
|
@return 0 or an error code
|
|
*/
|
|
int MPIN_CLIENT_2(octet *x, octet *y, octet *V);
|
|
|
|
/** @brief Perform final pass on the server side of the M-Pin protocol
|
|
|
|
@param HID is input H(ID), a hash of the client ID
|
|
@param y is the input server's randomly generated challenge
|
|
@param SS is the input server secret
|
|
@param U is input from the client = x.H(ID)
|
|
@param V is an input from the client
|
|
@return 0 or an error code
|
|
*/
|
|
int MPIN_SERVER(octet *HID, octet *y, octet *SS, octet *U, octet *V);
|
|
|
|
/** @brief Create a client secret in G1 from a master secret and the client ID
|
|
*
|
|
@param S is an input master secret
|
|
@param HID is the input client identity hashed to curve
|
|
@param CS is the full client secret = s.H(ID)
|
|
@return 0 or an error code
|
|
*/
|
|
int MPIN_GET_CLIENT_SECRET(octet *S, octet *HID, octet *CS);
|
|
|
|
/** @brief Create a server secret in G2 from a master secret
|
|
*
|
|
@param S is an input master secret
|
|
@param SS is the server secret = s.Q where Q is a fixed generator of G2
|
|
@return 0 or an error code
|
|
*/
|
|
int MPIN_GET_SERVER_SECRET(octet *S, octet *SS);
|
|
}
|
|
#endif
|
|
|