DragonX/hush3
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 1 Wiki Activity

Extend byte array expansion and compression methods with optional padding

Browse Source
This commit is contained in:
Jack Grigg
2016-08-14 01:58:08 +12:00
parent caa0348f04
commit 20abe2083c
3 changed files with 23 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
src/gtest/test_equihash.cpp
View File

@@ -4,31 +4,37 @@
#include "crypto/equihash.h"
#include "uint256.h"
void TestExpandAndCompress(const std::string &scope, size_t bit_len,
void TestExpandAndCompress(const std::string &scope, size_t bit_len, size_t byte_pad,
std::vector<unsigned char> compact,
std::vector<unsigned char> expanded)
{
SCOPED_TRACE(scope);
std::vector<unsigned char> out(expanded.size());
ExpandArray(compact.data(), compact.size(), out.data(), out.size(), bit_len);
ExpandArray(compact.data(), compact.size(),
out.data(), out.size(), bit_len, byte_pad);
EXPECT_EQ(expanded, out);
out.resize(compact.size());
CompressArray(expanded.data(), expanded.size(), out.data(), out.size(), bit_len);
CompressArray(expanded.data(), expanded.size(),
out.data(), out.size(), bit_len, byte_pad);
EXPECT_EQ(compact, out);
}
TEST(equihash_tests, expand_and_contract_arrays) {
TestExpandAndCompress("8 11-bit chunks, all-ones", 11,
TestExpandAndCompress("8 11-bit chunks, all-ones", 11, 0,
ParseHex("ffffffffffffffffffffff"),
ParseHex("07ff07ff07ff07ff07ff07ff07ff07ff"));
TestExpandAndCompress("8 21-bit chunks, alternating 1s and 0s", 21,
TestExpandAndCompress("8 21-bit chunks, alternating 1s and 0s", 21, 0,
ParseHex("aaaaad55556aaaab55555aaaaad55556aaaab55555"),
ParseHex("155555155555155555155555155555155555155555155555"));
TestExpandAndCompress("16 14-bit chunks, alternating 11s and 00s", 14,
TestExpandAndCompress("16 14-bit chunks, alternating 11s and 00s", 14, 0,
ParseHex("cccf333cccf333cccf333cccf333cccf333cccf333cccf333cccf333"),
ParseHex("3333333333333333333333333333333333333333333333333333333333333333"));
TestExpandAndCompress("8 11-bit chunks, all-ones, 2-byte padding", 11, 2,
ParseHex("ffffffffffffffffffffff"),
ParseHex("000007ff000007ff000007ff000007ff000007ff000007ff000007ff000007ff"));
}
TEST(equihash_tests, is_probably_duplicate) {