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feat: Add endian option to Sum hash

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WerWolv
2025-12-07 22:18:34 +01:00
parent 994df0a3a4
commit 6427f53b5a
6 changed files with 64 additions and 32 deletions
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31
plugins/hashes/source/content/hashes.cpp
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@@ -12,6 +12,8 @@
#include <HashFactory.h>
#include <ui/widgets.hpp>
namespace hex::plugin::hashes {
namespace {
@@ -471,12 +473,21 @@ namespace hex::plugin::hashes {
u64 sum = hash.m_initialValue;
u8 progress = 0;
for (u8 byte : reader) {
sum += (byte << (8 * progress));
progress += 1;
{
u64 partialSum = 0x00;
u8 progress = 0;
for (u8 byte : reader) {
partialSum += (byte << (8 * progress));
progress = progress % hash.m_inputSize;
progress += 1;
if (progress == hash.m_inputSize) {
sum += hex::changeEndianness(partialSum, hash.m_inputSize, hash.m_endian);
partialSum = 0x00;
progress = 0;
}
}
sum += hex::changeEndianness(partialSum, hash.m_inputSize, hash.m_endian);
}
u64 foldedSum = sum;
@@ -492,6 +503,8 @@ namespace hex::plugin::hashes {
}
}
foldedSum = hex::changeEndianness(foldedSum, hash.m_outputSize, hash.m_endian);
std::memcpy(result.data(), &foldedSum, hash.m_outputSize);
return { result.begin(), result.begin() + hash.m_outputSize };
@@ -502,6 +515,11 @@ namespace hex::plugin::hashes {
ImGuiExt::InputHexadecimal("hex.hashes.hash.common.iv"_lang, &m_initialValue);
ImGui::SliderInt("hex.hashes.hash.common.input_size"_lang, &m_inputSize, 1, 8, "%d", ImGuiSliderFlags_AlwaysClamp);
ImGui::SliderInt("hex.hashes.hash.common.output_size"_lang, &m_outputSize, 1, 8, "%d", ImGuiSliderFlags_AlwaysClamp);
ImGui::BeginDisabled(m_inputSize == 1);
ui::endiannessSlider(m_endian);
ImGui::EndDisabled();
ImGui::Checkbox("hex.hashes.hash.sum.fold"_lang, &m_foldOutput);
}
@@ -510,6 +528,7 @@ namespace hex::plugin::hashes {
result["iv"] = m_initialValue;
result["size"] = m_outputSize;
result["endian"] = m_endian == std::endian::little ? 0 : 1;
return result;
}
@@ -518,6 +537,7 @@ namespace hex::plugin::hashes {
try {
m_initialValue = data.at("iv").get<int>();
m_outputSize = data.at("size").get<int>();
m_endian = data.at("endian").get<int>() == 0 ? std::endian::little : std::endian::big;
} catch (std::exception&) { }
}
@@ -526,6 +546,7 @@ namespace hex::plugin::hashes {
int m_inputSize = 1;
int m_outputSize = 1;
bool m_foldOutput = false;
std::endian m_endian = std::endian::little;
};
class HashSnefru : public ContentRegistry::Hashes::Hash {