test/test_ecdsa_verify_ZZZ.c.in

/*
    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_ecdsa_verify_ZZZ.c
 * @author Kealan McCusker
 * @brief Test function for ECDSA verification,
 *
 */

/* Build executible after installation:

  gcc -std=c99 -g ./test_ecdsa_verify.c -I/opt/amcl/include -L/opt/amcl/lib -lamcl -lecdh -o test_ecdsa_verify

*/

#include "ecdh_ZZZ.h"
#include "utils.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define LINE_LEN 300
// #define DEBUG

int main(int argc, char** argv)
{
    if (argc != 3)
    {
        printf("usage: ./test_ecdsa_sign_ZZZ_256/512 [path to test vector file] [hash type: sha256||sha512] \n");
        exit(EXIT_FAILURE);
    }
    int rc;
    bool pass;
    FILE * fp = NULL;
    char line[LINE_LEN];
    char * linePtr = NULL;
    int l1=0;
    int l2=0;
    char * Msg = NULL;
    const char* MsgStr = "Msg = ";
    octet MsgOct;
    char Qx[EGS_ZZZ];
    const char* QxStr = "Qx = ";
    octet QxOct = {EGS_ZZZ,EGS_ZZZ,Qx};
    char Qy[EGS_ZZZ];
    const char* QyStr = "Qy = ";
    octet QyOct = {EGS_ZZZ,EGS_ZZZ,Qy};
    char * R = NULL;
    const char* RStr = "R = ";
    octet ROct;
    char * S = NULL;
    const char* SStr = "S = ";
    octet SOct;
    const char* ResultStr = "Result = ";

    // Assign hash type
    int hash_type;
    if (!strcmp(argv[2], "sha256"))
    {
        hash_type = 32;
    }
    else if (!strcmp(argv[2], "sha384"))
    {
        hash_type = 48;
    }
    else if (!strcmp(argv[2], "sha512"))
    {
        hash_type = 64;
    }
    else
    {
        hash_type = 32;
    }

    fp = fopen(argv[1], "r");
    if (fp == NULL)
    {
        printf("ERROR opening test vector file\n");
        exit(EXIT_FAILURE);
    }

    bool readLine = false;

    int i=0;
    while (fgets(line, LINE_LEN, fp) != NULL)
    {
        i++;
        readLine = true;
        if (!strncmp(line, MsgStr, strlen(MsgStr)))
        {
#ifdef DEBUG
            printf("line %d %s\n", i,line);
#endif
            // Find hex value in string
            linePtr = line + strlen(MsgStr);

            // Allocate memory
            l1 = strlen(linePtr)-1;
            l2 = l1/2;
            Msg = (char*) malloc (l2);
            if (Msg==NULL)
            {
                fclose(fp);
                exit(EXIT_FAILURE);
            }
            // Msg binary value
            amcl_hex2bin(linePtr, Msg, l1);

            MsgOct.len=l2;
            MsgOct.max=l2;
            MsgOct.val=Msg;
        }

        if (!strncmp(line, QxStr, strlen(QxStr)))
        {
#ifdef DEBUG
            printf("line %d %s\n", i,line);
#endif
            // Find hex value in string
            linePtr = line + strlen(QxStr);

            // Allocate data
            l1 = strlen(linePtr)-1;

            // Qx binary value
            amcl_hex2bin(linePtr, Qx, l1);
        }

        if (!strncmp(line, QyStr, strlen(QyStr)))
        {
#ifdef DEBUG
            printf("line %d %s\n", i,line);
#endif
            // Find hex value in string
            linePtr = line + strlen(QyStr);

            // Allocate data
            l1 = strlen(linePtr)-1;

            // Qy binary value
            amcl_hex2bin(linePtr, Qy, l1);
        }

        if (!strncmp(line, RStr, strlen(RStr)))
        {
#ifdef DEBUG
            printf("line %d %s\n", i,line);
#endif
            // Find hex value in string
            linePtr = line + strlen(RStr);

            // Allocate memory
            l1 = strlen(linePtr)-1;
            l2 = l1/2;
            R = (char*) malloc (l2);
            if (R==NULL)
            {
                fclose(fp);
                exit(EXIT_FAILURE);
            }
            // R binary value
            amcl_hex2bin(linePtr, R, l1);

            ROct.len=l2;
            ROct.max=l2;
            ROct.val=R;
        }

        if (!strncmp(line, SStr, strlen(SStr)))
        {
#ifdef DEBUG
            printf("line %d %s\n", i,line);
#endif
            // Find hex value in string
            linePtr = line + strlen(SStr);

            // Allocate memory
            l1 = strlen(linePtr)-1;
            l2 = l1/2;
            S = (char*) malloc (l2);
            if (S==NULL)
            {
                fclose(fp);
                exit(EXIT_FAILURE);
            }
            // S binary value
            amcl_hex2bin(linePtr, S, l1);

            SOct.len=l2;
            SOct.max=l2;
            SOct.val=S;
        }

        if (!strncmp(line, ResultStr, strlen(ResultStr)))
        {
#ifdef DEBUG
            printf("line %d %s\n", i,line);
#endif
            linePtr = line + strlen(ResultStr);
            char r1[1];
            char r2[1] = {"P"};
            strncpy(r1,linePtr,1);
            if (r1[0] == r2[0])
            {
                pass = true;
            }
            else
            {
                pass = false;
            }

            // Assign Public Key to EC
            BIG_XXX qx, qy;
            char q[2*EFS_ZZZ+1];
            BIG_XXX_fromBytes(qx,QxOct.val);
            BIG_XXX_fromBytes(qy,QyOct.val);
            octet QOct= {sizeof(q),sizeof(q),q};
            QOct.val[0]=4;
            BIG_XXX_toBytes(&(QOct.val[1]),qx);
            BIG_XXX_toBytes(&(QOct.val[EFS_ZZZ+1]),qy);

            rc = ECP_ZZZ_VP_DSA(hash_type,&QOct,&MsgOct,&ROct,&SOct);
            // Test expected to pass. rc is true for fail
            if ( pass && rc )
            {
                printf("TEST ECDSA VERIFY FAILED LINE %d pass %d rc %d\n",i,pass,rc);
                fclose(fp);
                exit(EXIT_FAILURE);
            }

            // Test expected to fail
            if ( !pass && !rc )
            {
                printf("TEST ECDSA VERIFY FAILED LINE %d pass %d rc %d\n",i,pass,rc);
                fclose(fp);
                exit(EXIT_FAILURE);
            }

            free(Msg);
            Msg = NULL;
            free(R);
            R = NULL;
            free(S);
            S = NULL;
        }
    }
    fclose(fp);
    if (!readLine)
    {
        printf("ERROR Empty test vector file\n");
        exit(EXIT_FAILURE);
    }
    printf("SUCCESS TEST ECDSA %s VERIFY PASSED\n", argv[2]);
    exit(EXIT_SUCCESS);
}