/*
    Licensed to the Apache Software Foundation (ASF) under one
    or more contributor license agreements.  See the NOTICE file
    distributed with this work for additional information
    regarding copyright ownership.  The ASF licenses this file
    to you 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 test_mpinfull_onepass_ZZZ.c
 * @author Kealan McCusker
 * @brief Test M-Pin Full Single pass
 *
 */

/* Test M-Pin Full Single pass */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "config_curve_ZZZ.h"
#include "pbc_support.h"
#include "randapi.h"
#if CURVE_SECURITY_ZZZ == 128
#include "mpin_ZZZ.h"
#elif CURVE_SECURITY_ZZZ == 192
#include "mpin192_ZZZ.h"
#elif CURVE_SECURITY_ZZZ == 256
#include "mpin256_ZZZ.h"
#endif

#if CURVE_SECURITY_ZZZ == 128
#define G2LEN 4*PFS_ZZZ
#elif CURVE_SECURITY_ZZZ == 192
#define G2LEN 8*PFS_ZZZ
#elif CURVE_SECURITY_ZZZ == 256
#define G2LEN 16*PFS_ZZZ
#endif
#define GTLEN 3*G2LEN

int main()
{
    int i,PIN1,PIN2,rtn;

    char id[256];
    octet ID = {0,sizeof(id),id};

    char x[PGS_ZZZ],y1[PGS_ZZZ],y2[PGS_ZZZ];
    octet X= {0, sizeof(x),x};
    octet Y1= {0,sizeof(y1),y1};
    octet Y2= {0,sizeof(y2),y2};

    /* Master secret shares */
    char ms1[PGS_ZZZ], ms2[PGS_ZZZ];
    octet MS1= {0,sizeof(ms1),ms1};
    octet MS2= {0,sizeof(ms2),ms2};

    /* Hash values of client ID */
    char hcid[PFS_ZZZ];
    octet HCID= {0,sizeof(hcid), hcid};

    /* Hash values of messages */
    char hm[PFS_ZZZ];
    octet HM= {0,sizeof(hm), hm};

    /* Client secret and shares */
    char cs1[2*PFS_ZZZ+1], cs2[2*PFS_ZZZ+1], sec[2*PFS_ZZZ+1];
    octet SEC= {0,sizeof(sec),sec};
    octet CS1= {0,sizeof(cs1), cs1};
    octet CS2= {0,sizeof(cs2), cs2};

    /* Server secret and shares */
    char ss1[G2LEN], ss2[G2LEN], serverSecret[G2LEN];
    octet ServerSecret= {0,sizeof(serverSecret),serverSecret};
    octet SS1= {0,sizeof(ss1),ss1};
    octet SS2= {0,sizeof(ss2),ss2};

    /* Time Permit and shares */
    char tp1[2*PFS_ZZZ+1], tp2[2*PFS_ZZZ+1], tp[2*PFS_ZZZ+1];
    octet TP= {0,sizeof(tp),tp};
    octet TP1= {0,sizeof(tp1),tp1};
    octet TP2= {0,sizeof(tp2),tp2};

    /* Token stored on device */
    char token[2*PFS_ZZZ+1];
    octet TOKEN= {0,sizeof(token),token};

    /* Precomputed values stored on device */
    char g1[GTLEN],g2[GTLEN];
    octet G1= {0,sizeof(g1),g1};
    octet G2= {0,sizeof(g2),g2};

    char ut[2*PFS_ZZZ+1];
    octet UT= {0,sizeof(ut),ut};

    char hid[2*PFS_ZZZ+1],htid[2*PFS_ZZZ+1];
    octet HID= {0,sizeof(hid),hid};
    octet HTID= {0,sizeof(htid),htid};

    char e[GTLEN], f[GTLEN];
    octet E= {0,sizeof(e),e};
    octet F= {0,sizeof(f),f};

    char r[PGS_ZZZ],z[2*PFS_ZZZ+1],w[PGS_ZZZ],t[2*PFS_ZZZ+1];
    char ck[AESKEY_ZZZ],sk[AESKEY_ZZZ];
    octet R= {0,sizeof(r),r};
    octet Z= {0,sizeof(z),z};
    octet W= {0,sizeof(w),w};
    octet T= {0,sizeof(t),t};
    octet SK= {0,sizeof(sk),sk};
    octet CK= {0,sizeof(ck),ck};

    int TimeValue = 0;

    PIN1 = 1234;
    PIN2 = 1234;

    /* Assign the End-User an ID */
    char* user = "alice@milagro.com";
    OCT_jstring(&ID,user);
    printf("CLIENT: ID %s\n", user);

    int date = 0;
    char seed[100] = {0};
    octet SEED = {0,sizeof(seed),seed};
    csprng RNG;

    /* unrandom seed value! */
    SEED.len=100;
    for (i=0; i<100; i++) SEED.val[i]=i+1;

    /* initialise random number generator */
    CREATE_CSPRNG(&RNG,&SEED);

    /* Hash ID */
    HASH_ID(HASH_TYPE_ZZZ,&ID,&HCID);
    OCT_output(&HCID);

    /* Generate Client master secret for MILAGRO and Customer */
    rtn = MPIN_ZZZ_RANDOM_GENERATE(&RNG,&MS1);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_RANDOM_GENERATE(&RNG,&MS1) Error %d\n", rtn);
        return 1;
    }
    rtn = MPIN_ZZZ_RANDOM_GENERATE(&RNG,&MS2);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_RANDOM_GENERATE(&RNG,&MS2) Error %d\n", rtn);
        return 1;
    }
    printf("MASTER SECRET MILAGRO:= 0x");
    OCT_output(&MS1);
    printf("MASTER SECRET CUSTOMER:= 0x");
    OCT_output(&MS2);

    /* Generate server secret shares */
    rtn = MPIN_ZZZ_GET_SERVER_SECRET(&MS1,&SS1);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_GET_SERVER_SECRET(&MS1,&SS1) Error %d\n", rtn);
        return 1;
    }
    rtn = MPIN_ZZZ_GET_SERVER_SECRET(&MS2,&SS2);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_GET_SERVER_SECRET(&MS2,&SS2) Error %d\n", rtn);
        return 1;
    }
    printf("SS1 = 0x");
    OCT_output(&SS1);
    printf("SS2 = 0x");
    OCT_output(&SS2);

    /* Combine server secret share */
    rtn = MPIN_ZZZ_RECOMBINE_G2(&SS1, &SS2, &ServerSecret);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_RECOMBINE_G2(&SS1, &SS2, &ServerSecret) Error %d\n", rtn);
        return 1;
    }
    printf("ServerSecret = 0x");
    OCT_output(&ServerSecret);

    /* Generate client secret shares */
    rtn = MPIN_ZZZ_GET_CLIENT_SECRET(&MS1,&HCID,&CS1);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_GET_CLIENT_SECRET(&MS1,&HCID,&CS1) Error %d\n", rtn);
        return 1;
    }
    rtn = MPIN_ZZZ_GET_CLIENT_SECRET(&MS2,&HCID,&CS2);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_GET_CLIENT_SECRET(&MS2,&HCID,&CS2) Error %d\n", rtn);
        return 1;
    }
    printf("CS1 = 0x");
    OCT_output(&CS1);
    printf("CS2 = 0x");
    OCT_output(&CS2);

    /* Combine client secret shares : TOKEN is the full client secret */
    rtn = MPIN_ZZZ_RECOMBINE_G1(&CS1, &CS2, &TOKEN);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_RECOMBINE_G1(&CS1, &CS2, &TOKEN) Error %d\n", rtn);
        return 1;
    }
    printf("Client Secret = 0x");
    OCT_output(&TOKEN);

    /* Generate Time Permit shares */
    date = today();
    printf("Date %d \n", date);
    rtn = MPIN_ZZZ_GET_CLIENT_PERMIT(HASH_TYPE_ZZZ,date,&MS1,&HCID,&TP1);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_GET_CLIENT_PERMIT(HASH_TYPE_ZZZ,date,&MS1,&HCID,&TP1) Error %d\n", rtn);
        return 1;
    }
    rtn = MPIN_ZZZ_GET_CLIENT_PERMIT(HASH_TYPE_ZZZ,date,&MS2,&HCID,&TP2);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_GET_CLIENT_PERMIT(HASH_TYPE_ZZZ,date,&MS2,&HCID,&TP2) Error %d\n", rtn);
        return 1;
    }
    printf("TP1 = 0x");
    OCT_output(&TP1);
    printf("TP2 = 0x");
    OCT_output(&TP2);

    /* Combine Time Permit shares */
    rtn = MPIN_ZZZ_RECOMBINE_G1(&TP1, &TP2, &TP);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_RECOMBINE_G1(&TP1, &TP2, &TP) Error %d\n", rtn);
        return 1;
    }
    printf("Time Permit = 0x");
    OCT_output(&TP);

    /* This encoding makes Time permit look random */
    if (MPIN_ZZZ_ENCODING(&RNG,&TP)!=0) printf("Encoding error\n");
    printf("Encoded Time Permit= ");
    OCT_output(&TP);
    if (MPIN_ZZZ_DECODING(&TP)!=0) printf("Decoding error\n");
    printf("Decoded Time Permit= ");
    OCT_output(&TP);

    /* Client extracts PIN1 from secret to create Token */
    rtn = MPIN_ZZZ_EXTRACT_PIN(HASH_TYPE_ZZZ,&ID, PIN1, &TOKEN);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_EXTRACT_PIN( &ID, PIN, &TOKEN) Error %d\n", rtn);
        return 1;
    }
    printf("Token = 0x");
    OCT_output(&TOKEN);

    /* Client precomputation */
    MPIN_ZZZ_PRECOMPUTE(&TOKEN,&HCID,NULL,&G1,&G2);

    /* Client  */
    TimeValue = GET_TIME();
    printf("TimeValue %d \n", TimeValue);
    rtn = MPIN_ZZZ_CLIENT(HASH_TYPE_ZZZ,date,&ID,&RNG,&X,PIN2,&TOKEN,&SEC,NULL,&UT,&TP,NULL,TimeValue,&Y1);
    if (rtn != 0)
    {
        printf("MPIN_ZZZ_CLIENT ERROR %d\n", rtn);
        return 1;
    }
    printf("Y1 = 0x");
    OCT_output(&Y1);
    printf("V = 0x");
    OCT_output(&SEC);

    /* Client sends Z=r.ID to Server */
    MPIN_ZZZ_GET_G1_MULTIPLE(&RNG,1,&R,&HCID,&Z);

    /* Server  */
    rtn = MPIN_ZZZ_SERVER(HASH_TYPE_ZZZ,date,&HID,&HTID,&Y2,&ServerSecret,NULL,&UT,&SEC,&E,&F,&ID,NULL,TimeValue,NULL);

    printf("Y2 = 0x");
    OCT_output(&Y2);
    if (rtn != 0)
    {
        printf("FAILURE Invalid Token Error Code %d\n", rtn);
        return 1;
    }
    else
    {
        printf("Authenticated Error Code %d\n", rtn);
    }

    /* Server sends T=w.ID to client */
    MPIN_ZZZ_GET_G1_MULTIPLE(&RNG,0,&W,&HTID,&T);
    printf("T = 0x");
    OCT_output(&T);

    HASH_ALL(HASH_TYPE_ZZZ,&HCID,NULL,&UT,&SEC,&Y1,&Z,&T,&HM);
    MPIN_ZZZ_CLIENT_KEY(HASH_TYPE_ZZZ,&G1,&G2,PIN2,&R,&X,&HM,&T,&CK);
    printf("Client Key = ");
    OCT_output(&CK);

    HASH_ALL(HASH_TYPE_ZZZ,&HCID,NULL,&UT,&SEC,&Y2,&Z,&T,&HM);
    MPIN_ZZZ_SERVER_KEY(HASH_TYPE_ZZZ,&Z,&ServerSecret,&W,&HM,&HID,NULL,&UT,&SK);
    printf("Server Key = ");
    OCT_output(&SK);

    if (!OCT_comp(&CK,&SK))
    {
        printf("FAILURE Keys are different\n");
        return 1;
    }

    printf("SUCCESS\n");
    return 0;

}