Coverage Report

Created: 2020-06-30 13:58

/src/botan/src/fuzzer/redc_p192.cpp
Line
Count
Source
1
/*
2
* (C) 2015,2016 Jack Lloyd
3
*
4
* Botan is released under the Simplified BSD License (see license.txt)
5
*/
6
7
#include "fuzzers.h"
8
#include <botan/reducer.h>
9
#include <botan/curve_nistp.h>
10
11
void fuzz(const uint8_t in[], size_t len)
12
356
   {
13
356
   if(len > 2*192/8)
14
127
      return;
15
229
16
229
   static const Botan::BigInt& prime = Botan::prime_p192();
17
229
   static const Botan::BigInt prime_2 = prime * prime;
18
229
   static Botan::Modular_Reducer prime_redc(prime);
19
229
20
229
   Botan::BigInt input = Botan::BigInt::decode(in, len);
21
229
22
229
   if(input < prime_2)
23
224
      {
24
224
      const Botan::BigInt ref = prime_redc.reduce(input);
25
224
26
224
      Botan::secure_vector<Botan::word> ws;
27
224
      Botan::redc_p192(input, ws);
28
224
29
224
      FUZZER_ASSERT_EQUAL(ref, input);
30
224
      }
31
229
   }