test/smoke/test_bc_setup_smoke.c

/*
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.
*/

/* NM commitment smoke test */

#include <stdio.h>
#include "amcl/commitments.h"

char *Phex = "CA5F37B7C0DDF6530B30A41116588218DE95F1F36B807FD7C28E4C467EE3F35967BC01D28B71F8A627A353675A81C86A1FF03DCECAF1686891183FA317BA34A4A1148D40A89F1F3AC0C200511C6CFE02342CD75354C25A2E069886DD4FB73BD365660D163F1282B143119AB8F375A73875EC16B634F52593B73BC6D875F2D3EF";
char *Qhex = "C2FC545C1C803F6C7625FBC4ECF9355734D6B6058FD714816D3ECFB93F1F705C9CE90D4F8796A05148AB5ABC201F90889231CC6BF5F68ED15EE4D901F603930A280EEABF10C613BFCB67A816363C839EB902B02607EB48AB8325E2B72620D4D294A232803217090DFB50AF8C620D4679E77CE3053437ED518F4F68840DCF1AA3";

void ff_2048_cleaned(BIG_1024_58 *a, char *name, int n)
{
    if(!FF_2048_iszilch(a, n))
    {
        fprintf(stderr, "FAILURE COMMITMENTS_BC_kill_priv_modulus. %s was not cleaned\n", name);
        exit(EXIT_FAILURE);
    }
}

int main()
{
    char p[HFS_2048];
    octet P = {0, sizeof(p), p};

    char q[HFS_2048];
    octet Q = {0, sizeof(q), q};

    COMMITMENTS_BC_priv_modulus m;

    BIG_1024_58 e[FFLEN_2048];

    // Load values
    OCT_fromHex(&P, Phex);
    OCT_fromHex(&Q, Qhex);

    // Deterministic RNG for testing
    char seed[32] = {0};
    csprng RNG;
    RAND_seed(&RNG, 32, seed);

    COMMITMENTS_BC_setup(&RNG, &m, &P, &Q, NULL, NULL);

    // Check that b0, b1, alpha, ialpha are of the correct form
    FF_2048_pow(e, m.b0, m.alpha, m.N, FFLEN_2048, FFLEN_2048);
    if (FF_2048_comp(e, m.b1, FFLEN_2048) != 0)
    {
        printf("FAILURE COMMITMENTS_BC_setup. b1 != b0^alpha");
        exit(EXIT_FAILURE);
    }

    FF_2048_pow(e, m.b1, m.ialpha, m.N, FFLEN_2048, FFLEN_2048);
    if (FF_2048_comp(e, m.b0, FFLEN_2048) != 0)
    {
        printf("FAILURE COMMITMENTS_BC_setup. b0 != b1^ialpha");
        exit(EXIT_FAILURE);
    }

    COMMITMENTS_BC_kill_priv_modulus(&m);

    // Check that modulus was correctly killed
    ff_2048_cleaned(m.P,      "P",      HFLEN_2048);
    ff_2048_cleaned(m.Q,      "Q",      HFLEN_2048);
    ff_2048_cleaned(m.pq,     "pq",     FFLEN_2048);
    ff_2048_cleaned(m.alpha,  "alpha",  FFLEN_2048);
    ff_2048_cleaned(m.ialpha, "ialpha", FFLEN_2048);

    printf("SUCCESS\n");
    exit(EXIT_SUCCESS);
}