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Leonetienne
2022-05-22 17:32:54 +02:00
parent 91819c9723
commit cd119f21bb
3 changed files with 217 additions and 217 deletions
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100
GCryptLib/include/GCrypt/Util.h
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@@ -13,79 +13,79 @@
#include "GCrypt/InitializationVector.h"
namespace Leonetienne::GCrypt {
//! Mod-operator that works with negative values
inline int Mod(const int numerator, const int denominator) {
return (denominator + (numerator % denominator)) % denominator;
}
//! Mod-operator that works with negative values
inline int Mod(const int numerator, const int denominator) {
return (denominator + (numerator % denominator)) % denominator;
}
//! Will perform a wrapping left-bitshift on a bitset
template <std::size_t T>
//! Will perform a wrapping left-bitshift on a bitset
template <std::size_t T>
inline SecureBitset<T> Shiftl(const SecureBitset<T>& bits, const std::size_t amount) {
std::stringstream ss;
const std::string bitss = bits.to_string();
std::stringstream ss;
const std::string bitss = bits.to_string();
for (std::size_t i = 0; i < bitss.size(); i++) {
ss << bitss[Mod((int)(i + amount), (int)bitss.size())];
}
for (std::size_t i = 0; i < bitss.size(); i++) {
ss << bitss[Mod((int)(i + amount), (int)bitss.size())];
}
return SecureBitset<T>(ss.str());
return SecureBitset<T>(ss.str());
}
//! Will perform a wrapping right-bitshift on a bitset
template <std::size_t T>
//! Will perform a wrapping right-bitshift on a bitset
template <std::size_t T>
inline SecureBitset<T> Shiftr(const SecureBitset<T>& bits, const std::size_t amount) {
std::stringstream ss;
const std::string bitss = bits.to_string();
std::stringstream ss;
const std::string bitss = bits.to_string();
for (std::size_t i = 0; i < bitss.size(); i++) {
ss << bitss[Mod((i - amount), bitss.size())];
}
for (std::size_t i = 0; i < bitss.size(); i++) {
ss << bitss[Mod((i - amount), bitss.size())];
}
return SecureBitset<T>(ss.str());
return SecureBitset<T>(ss.str());
}
//! Will pad a string to a set length with a certain character
std::string PadStringToLength(const std::string& str, const std::size_t len, const char pad, const bool padLeft = true);
//! Will pad a string to a set length with a certain character
std::string PadStringToLength(const std::string& str, const std::size_t len, const char pad, const bool padLeft = true);
//! Will convert a string to a fixed-size data block
//! @s: The string to pad
//! padLeft: should padding be added to the left? If not, to the right.
Block StringToBitblock(const std::string& s, bool padLeft = true);
//! Will convert a string to a fixed-size data block
//! @s: The string to pad
//! padLeft: should padding be added to the left? If not, to the right.
Block StringToBitblock(const std::string& s, bool padLeft = true);
//! Will convert a string to a flexible data block
Flexblock StringToBits(const std::string& s);
//! Will convert a string to a flexible data block
Flexblock StringToBits(const std::string& s);
//! Will convert a fixed-size data block to a bytestring
std::string BitblockToBytes(const Block& bits);
//! Will convert a fixed-size data block to a bytestring
std::string BitblockToBytes(const Block& bits);
//! Will convert a fixed-size data block to a string
//! The difference to BitblockToBytes() is, that it strips excess nullbytes
std::string BitblockToString(const Block& bits);
//! Will convert a fixed-size data block to a string
//! The difference to BitblockToBytes() is, that it strips excess nullbytes
std::string BitblockToString(const Block& bits);
//! Will convert a flexible data block to a bytestring
std::string BitsToBytes(const Flexblock& bits);
//! Will convert a flexible data block to a bytestring
std::string BitsToBytes(const Flexblock& bits);
//! Will convert a flexible data block to a string
//! The difference to BitsToBytes() is, that it strips excess nullbytes
std::string BitsToString(const Flexblock& bits);
//! Will convert a flexible data block to a string
//! The difference to BitsToBytes() is, that it strips excess nullbytes
std::string BitsToString(const Flexblock& bits);
//! Turns a fixed-size data block into a hex-string
std::string BitblockToHexstring(const Block& b);
//! Turns a fixed-size data block into a hex-string
std::string BitblockToHexstring(const Block& b);
//! Turns a flexible data block into a hex-string
std::string BitsToHexstring(const Flexblock& b);
//! Turns a flexible data block into a hex-string
std::string BitsToHexstring(const Flexblock& b);
//! Turns a hex string into a fixed-size data block
Block HexstringToBitblock(const std::string& hexstring);
//! Turns a hex string into a fixed-size data block
Block HexstringToBitblock(const std::string& hexstring);
//! Turns a hex string into a flexible data block
Flexblock HexstringToBits(const std::string& hexstring);
//! Turns a hex string into a flexible data block
Flexblock HexstringToBits(const std::string& hexstring);
//! Will read a file into a flexblock
Flexblock ReadFileToBits(const std::string& filepath);
//! Will read a file into a flexblock
Flexblock ReadFileToBits(const std::string& filepath);
//! Will save bits to a binary file
void WriteBitsToFile(const std::string& filepath, const Flexblock& bits);
//! Will save bits to a binary file
void WriteBitsToFile(const std::string& filepath, const Flexblock& bits);
}
#endif