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Exclude random from fc library

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Davor Hirunda 2022-05-07 00:13:13 +00:00 committed by serkixenos
parent 711b04fb4f
commit 2aeba6b6a5
4 changed files with 0 additions and 81 deletions
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8
include/fc/crypto/rand.hpp
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@ -1,8 +0,0 @@
#pragma once
namespace fc {
/* provides access to the OpenSSL random number generator */
void rand_bytes(char* buf, int count);
//void rand_pseudo_bytes(char* buf, int count);
} // namespace fc

29
src/crypto/rand.cpp
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@ -1,29 +0,0 @@
#include <openssl/rand.h>
#include <fc/crypto/openssl.hpp>
#include <fc/exception/exception.hpp>
#include <fc/fwd_impl.hpp>
namespace fc {
void rand_bytes(char* buf, int count)
{
static int init = init_openssl();
(void)init;
int result = RAND_bytes((unsigned char*)buf, count);
if (result != 1)
FC_THROW("Error calling OpenSSL's RAND_bytes(): ${code}", ("code", (uint32_t)ERR_get_error()));
}
//void rand_pseudo_bytes(char* buf, int count)
//{
// static int init = init_openssl();
// (void)init;
//
// int result = RAND_pseudo_bytes((unsigned char*)buf, count);
// if (result == -1)
// FC_THROW("Error calling OpenSSL's RAND_pseudo_bytes(): ${code}", ("code", (uint32_t)ERR_get_error()));
//}
} // namespace fc

1
tests/CMakeLists.txt
View file

@ -44,7 +44,6 @@ add_executable( all_tests all_tests.cpp
crypto/blind.cpp crypto/blind.cpp
crypto/blowfish_test.cpp crypto/blowfish_test.cpp
crypto/dh_test.cpp crypto/dh_test.cpp
crypto/rand_test.cpp
crypto/sha_tests.cpp crypto/sha_tests.cpp
io/json_tests.cpp io/json_tests.cpp
io/stream_tests.cpp io/stream_tests.cpp

43
tests/crypto/rand_test.cpp
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@ -1,43 +0,0 @@
#include <boost/test/unit_test.hpp>
#include <fc/crypto/rand.hpp>
#include <cmath>
static void check_randomness( const char* buffer, size_t len ) {
if (len == 0) { return; }
// count bit runs and 0's / 1's
unsigned int zc = 0, oc = 0, rc = 0, last = 2;
for (size_t k = len; k; k--) {
char c = *buffer++;
for (int i = 0; i < 8; i++) {
unsigned int bit = c & 1;
c >>= 1;
if (bit) { oc++; } else { zc++; }
if (bit != last) { rc++; last = bit; }
}
}
BOOST_CHECK_EQUAL( 8*len, zc + oc );
double E = 1 + (zc + oc) / 2.0;
double variance = (E - 1) * (E - 2) / (oc + zc - 1);
double sigma = sqrt(variance);
BOOST_CHECK( rc < 2*(E + sigma) );
}
BOOST_AUTO_TEST_SUITE(fc_crypto)
BOOST_AUTO_TEST_CASE(rand_test)
{
char buffer[128];
fc::rand_bytes( buffer, sizeof(buffer) );
check_randomness( buffer, sizeof(buffer) );
}
//BOOST_AUTO_TEST_CASE(pseudo_rand_test)
//{
// char buffer[10013];
// fc::rand_pseudo_bytes( buffer, sizeof(buffer) );
// check_randomness( buffer, sizeof(buffer) );
//}
BOOST_AUTO_TEST_SUITE_END()