Gcryptlib: new brace style, and moved to Leonetienne namespace

GhettoCrypt/exec/main.cpp

@@ -4,7 +4,7 @@
 #include <Util.h>
 #include <InitializationVector.h>
 
-using namespace GhettoCipher;
+using namespace Leonetienne::GCrypt;
 
 void ExampleString() {
   std::cout << "Example on how to encrypt & decrypt a string:" << std::endl;

GhettoCrypt/include/Block.h

@@ -2,7 +2,7 @@
 #include "SecureBitset.h"
 #include "Config.h"
 
-namespace GhettoCipher {
+namespace Leonetienne::GCrypt {
   typedef SecureBitset<BLOCK_SIZE> Block;
 }
 

GhettoCrypt/include/Cipher.h

@@ -2,7 +2,7 @@
 #include "Feistel.h"
 #include "Flexblock.h"
 
-namespace GhettoCipher {
+namespace Leonetienne::GCrypt {
   /** Class to apply a block cipher to messages of arbitrary length in a distributed manner
   */
   class Cipher {

GhettoCrypt/include/Config.h

@@ -1,7 +1,7 @@
 #pragma once
 #include <cstddef>
 
-namespace GhettoCipher {
+namespace Leonetienne::GCrypt {
   // MUST BE A POWER OF 2 > 4
   constexpr std::size_t BLOCK_SIZE = 512;
 

GhettoCrypt/include/Feistel.h

@@ -3,7 +3,7 @@
 #include "Block.h"
 #include "Halfblock.h"
 
-namespace GhettoCipher {
+namespace Leonetienne::GCrypt {
   /** Class to perform a feistel block chipher
   */
   class Feistel {

GhettoCrypt/include/Flexblock.h

@@ -1,7 +1,7 @@
 #pragma once
 #include <string>
 
-namespace GhettoCipher {
+namespace Leonetienne::GCrypt {
   //! A "bitset" of variable length
   typedef std::string Flexblock;
 }

GhettoCrypt/include/GhettoCryptWrapper.h

@@ -1,9 +1,9 @@
 #pragma once
 #include <string>
 
-namespace GhettoCipher {
+namespace Leonetienne::GCrypt {
   /** This class is a wrapper to make working with the GhettoCipher
-    * super easy with a python-like syntax
+  *   super easy with a python-like syntax
   */
   class GhettoCryptWrapper {
   public:

GhettoCrypt/include/Halfblock.h

@@ -3,7 +3,7 @@
 #include <cstdint>
 #include "Config.h"
 
-namespace GhettoCipher {
+namespace Leonetienne::GCrypt {
   constexpr std::size_t HALFBLOCK_SIZE = (BLOCK_SIZE / 2);
   typedef SecureBitset<HALFBLOCK_SIZE> Halfblock;
 }

GhettoCrypt/include/InitializationVector.h

@@ -2,16 +2,16 @@
 #include "Config.h"
 #include "Block.h"
 
-namespace GhettoCipher {
+namespace Leonetienne::GCrypt {
   /** Will create a sudo-random Block based on a seed
   */
   class InitializationVector {
   public:
-    InitializationVector(const GhettoCipher::Block& seed);
+    InitializationVector(const Block& seed);
 
-    operator GhettoCipher::Block() const;
+    operator Block() const;
 
   private:
-    GhettoCipher::Block iv;
+    Block iv;
   };
 }

GhettoCrypt/include/Keyset.h

@@ -3,6 +3,6 @@
 #include "Block.h"
 #include "Config.h"
 
-namespace GhettoCipher {
+namespace Leonetienne::GCrypt {
   typedef std::array<Block, N_ROUNDS> Keyset;
 }

GhettoCrypt/include/SecureBitset.h

@@ -3,7 +3,7 @@
 #include <ostream>
 #include <istream>
 
-namespace GhettoCipher {
+namespace Leonetienne::GCrypt {
   /** Wrapper for std::bitset<T> that zeroes memory upon deletion.
   * This does not include ALL methods, but the ones needed.
   *

GhettoCrypt/include/Util.h

@@ -10,7 +10,7 @@
 #include "Cipher.h"
 #include "InitializationVector.h"
 
-namespace GhettoCipher {
+namespace Leonetienne::GCrypt {
     //! Mod-operator that works with negative values
     inline int Mod(const int numerator, const int denominator) {
         return (denominator + (numerator % denominator)) % denominator;

GhettoCrypt/src/Cipher.cpp

@@ -4,128 +4,132 @@
 #include "Util.h"
 #include "InitializationVector.h"
 
-GhettoCipher::Cipher::Cipher(const Block& key)
+namespace Leonetienne::GCrypt {
-  :
-  key { key },
-  initializationVector(InitializationVector(key)) {
 
-  return;
+  Cipher::Cipher(const Block& key)
-}
+    :
+    key { key },
+    initializationVector(InitializationVector(key)) {
 
-GhettoCipher::Cipher::Cipher(const std::string& password)
+    return;
-  :
-  key { PasswordToKey(password) },
-  initializationVector(InitializationVector(key)) {
-  return;
-}
-
-GhettoCipher::Cipher::~Cipher() {
-  // Clear key memory
-  ZeroKeyMemory();
-
-  return;
-}
-
-void GhettoCipher::Cipher::SetKey(const Block& key) {
-  ZeroKeyMemory();
-
-  this->key = key;
-  return;
-}
-
-void GhettoCipher::Cipher::SetPassword(const std::string& password) {
-  ZeroKeyMemory();
-
-  key = PasswordToKey(password);
-  return;
-}
-
-GhettoCipher::Flexblock GhettoCipher::Cipher::Encipher(const Flexblock& data, bool printProgress) const {
-  // Split cleartext into blocks
-  std::vector<Block> blocks;
-
-  for (std::size_t i = 0; i < data.size(); i += BLOCK_SIZE) {
-    blocks.push_back(Block(
-      PadStringToLength(data.substr(i, BLOCK_SIZE), BLOCK_SIZE, '0', false))
-    );
   }
 
-  // Encrypt individual blocks using cipher block chaining
+  Cipher::Cipher(const std::string& password)
-  Feistel feistel(key);
+    :
+    key { PasswordToKey(password) },
+    initializationVector(InitializationVector(key)) {
+    return;
+  }
 
-  for (std::size_t i = 0; i < blocks.size(); i++) {
+  Cipher::~Cipher() {
-    // Print reports if desired. If we have > 1000 blocks, print one report every 100 blocks. Otherwise for every 10th block.
+    // Clear key memory
-    if ((i % ((blocks.size() > 1000)? 100 : 10) == 0) && (printProgress)) {
+    ZeroKeyMemory();
-      std::cout << "Encrypting... (Block " << i << " / " << blocks.size() << " - " << ((float)i*100 / blocks.size()) << "%)" << std::endl;
+
+    return;
+  }
+
+  void Cipher::SetKey(const Block& key) {
+    ZeroKeyMemory();
+
+    this->key = key;
+    return;
+  }
+
+  void Cipher::SetPassword(const std::string& password) {
+    ZeroKeyMemory();
+
+    key = PasswordToKey(password);
+    return;
+  }
+
+  Flexblock Cipher::Encipher(const Flexblock& data, bool printProgress) const {
+    // Split cleartext into blocks
+    std::vector<Block> blocks;
+
+    for (std::size_t i = 0; i < data.size(); i += BLOCK_SIZE) {
+      blocks.push_back(Block(
+        PadStringToLength(data.substr(i, BLOCK_SIZE), BLOCK_SIZE, '0', false))
+      );
     }
 
-    const Block& lastBlock = (i>0) ? blocks[i-1] : initializationVector;
+    // Encrypt individual blocks using cipher block chaining
-    blocks[i] = feistel.Encipher(blocks[i] ^ lastBlock); // Xor last cipher block with new clear text block before E()
+    Feistel feistel(key);
-  }
 
-  // Concatenate ciphertext blocks back into a flexblock
+    for (std::size_t i = 0; i < blocks.size(); i++) {
-  std::stringstream ss;
+      // Print reports if desired. If we have > 1000 blocks, print one report every 100 blocks. Otherwise for every 10th block.
-  for (Block& b : blocks) {
+      if ((i % ((blocks.size() > 1000)? 100 : 10) == 0) && (printProgress)) {
-    ss << b;
+        std::cout << "Encrypting... (Block " << i << " / " << blocks.size() << " - " << ((float)i*100 / blocks.size()) << "%)" << std::endl;
-  }
+      }
 
-  // Return it
+      const Block& lastBlock = (i>0) ? blocks[i-1] : initializationVector;
-  return ss.str();
+      blocks[i] = feistel.Encipher(blocks[i] ^ lastBlock); // Xor last cipher block with new clear text block before E()
-}
-
-GhettoCipher::Flexblock GhettoCipher::Cipher::Decipher(const Flexblock& data, bool printProgress) const {
-  // Split ciphertext into blocks
-  std::vector<Block> blocks;
-
-  for (std::size_t i = 0; i < data.size(); i += BLOCK_SIZE) {
-    blocks.push_back(Block(
-      PadStringToLength(data.substr(i, BLOCK_SIZE), BLOCK_SIZE, '0', false))
-    );
-  }
-
-  // Decrypt individual blocks
-  Feistel feistel(key);
-
-  // We can't do this in-loop for decryption, because we are decrypting the blocks in-place.
-  Block lastBlock = initializationVector;
-
-  for (std::size_t i = 0; i < blocks.size(); i++) {
-    // Print reports if desired. If we have > 1000 blocks, print one report every 100 blocks. Otherwise for every 10th block.
-    if ((i % ((blocks.size() > 1000) ? 100 : 10) == 0) && (printProgress)) {
-      std::cout << "Decrypting... (Block " << i << " / " << blocks.size() << " - " << ((float)i*100/ blocks.size()) << "%)" << std::endl;
     }
 
-    Block tmpCopy = blocks[i];
+    // Concatenate ciphertext blocks back into a flexblock
+    std::stringstream ss;
+    for (Block& b : blocks) {
+      ss << b;
+    }
 
-    blocks[i] = feistel.Decipher(blocks[i]) ^ lastBlock; // Decipher cipher block [i] and then xor it with the last cipher block [i-1] we've had
+    // Return it
-
+    return ss.str();
-    lastBlock = std::move(tmpCopy);
   }
 
-  // Concatenate ciphertext blocks back into a flexblock
+  Flexblock Cipher::Decipher(const Flexblock& data, bool printProgress) const {
-  std::stringstream ss;
+    // Split ciphertext into blocks
-  for (Block& b : blocks) {
+    std::vector<Block> blocks;
-    ss << b;
+
+    for (std::size_t i = 0; i < data.size(); i += BLOCK_SIZE) {
+      blocks.push_back(Block(
+        PadStringToLength(data.substr(i, BLOCK_SIZE), BLOCK_SIZE, '0', false))
+      );
+    }
+
+    // Decrypt individual blocks
+    Feistel feistel(key);
+
+    // We can't do this in-loop for decryption, because we are decrypting the blocks in-place.
+    Block lastBlock = initializationVector;
+
+    for (std::size_t i = 0; i < blocks.size(); i++) {
+      // Print reports if desired. If we have > 1000 blocks, print one report every 100 blocks. Otherwise for every 10th block.
+      if ((i % ((blocks.size() > 1000) ? 100 : 10) == 0) && (printProgress)) {
+        std::cout << "Decrypting... (Block " << i << " / " << blocks.size() << " - " << ((float)i*100/ blocks.size()) << "%)" << std::endl;
+      }
+
+      Block tmpCopy = blocks[i];
+
+      blocks[i] = feistel.Decipher(blocks[i]) ^ lastBlock; // Decipher cipher block [i] and then xor it with the last cipher block [i-1] we've had
+
+      lastBlock = std::move(tmpCopy);
+    }
+
+    // Concatenate ciphertext blocks back into a flexblock
+    std::stringstream ss;
+    for (Block& b : blocks) {
+      ss << b;
+    }
+
+    // Return it
+    return ss.str();
   }
 
-  // Return it
+  // These pragmas only work for MSVC and g++, as far as i know. Beware!!!
-  return ss.str();
-}
-
-// These pragmas only work for MSVC and g++, as far as i know. Beware!!!
 #if defined _WIN32 || defined _WIN64
 #pragma optimize("", off )
 #elif defined __GNUG__
 #pragma GCC push_options
 #pragma GCC optimize ("O0")
 #endif
-void GhettoCipher::Cipher::ZeroKeyMemory() {
+  void Cipher::ZeroKeyMemory() {
-  key.reset();
+    key.reset();
-  return;
+    return;
-}
+  }
 #if defined _WIN32 || defined _WIN64
 #pragma optimize("", on )
 #elif defined __GNUG__
 #pragma GCC pop_options
 #endif
 
+}
+

GhettoCrypt/src/Feistel.cpp

@@ -3,258 +3,262 @@
 #include "Util.h"
 #include "Config.h"
 
-GhettoCipher::Feistel::Feistel(const Block& key) {
+namespace Leonetienne::GCrypt {
-    SetKey(key);
-    return;
-}
 
-GhettoCipher::Feistel::~Feistel() {
+  Feistel::Feistel(const Block& key) {
-    ZeroKeyMemory();
+      SetKey(key);
+      return;
+  }
 
-    return;
+  Feistel::~Feistel() {
-}
+      ZeroKeyMemory();
 
-void GhettoCipher::Feistel::SetKey(const Block& key) {
+      return;
-    GenerateRoundKeys(key);
+  }
-    return;
-}
 
-GhettoCipher::Block GhettoCipher::Feistel::Encipher(const Block& data) {
+  void Feistel::SetKey(const Block& key) {
-    return Run(data, false);
+      GenerateRoundKeys(key);
-}
+      return;
+  }
 
-GhettoCipher::Block GhettoCipher::Feistel::Decipher(const Block& data) {
+  Block Feistel::Encipher(const Block& data) {
-    return Run(data, true);
+      return Run(data, false);
-}
+  }
 
-GhettoCipher::Block GhettoCipher::Feistel::Run(const Block& data, bool reverseKeys) {
+  Block Feistel::Decipher(const Block& data) {
-    const auto splitData = FeistelSplit(data);
+      return Run(data, true);
-    GhettoCipher::Halfblock l = splitData.first;
+  }
-    GhettoCipher::Halfblock r = splitData.second;
 
-    Halfblock tmp;
+  Block Feistel::Run(const Block& data, bool reverseKeys) {
+      const auto splitData = FeistelSplit(data);
+      Halfblock l = splitData.first;
+      Halfblock r = splitData.second;
 
-    for (std::size_t i = 0; i < N_ROUNDS; i++) {
+      Halfblock tmp;
-        // Calculate key index
-        std::size_t keyIndex;
-        if (reverseKeys) {
-            keyIndex = N_ROUNDS - i - 1;
-        }
-        else {
-            keyIndex = i;
-        }
 
-        // Do a feistel round
+      for (std::size_t i = 0; i < N_ROUNDS; i++) {
-        tmp = r;
+          // Calculate key index
-        r = l ^ F(r, roundKeys[keyIndex]);
+          std::size_t keyIndex;
-        l = tmp;
+          if (reverseKeys) {
-    }
+              keyIndex = N_ROUNDS - i - 1;
+          }
+          else {
+              keyIndex = i;
+          }
 
-    // Block has finished de*ciphering.
+          // Do a feistel round
-    // Let's generate a new set of round keys.
+          tmp = r;
-    GenerateRoundKeys((Block)roundKeys.back());
+          r = l ^ F(r, roundKeys[keyIndex]);
+          l = tmp;
+      }
 
-    return FeistelCombine(r, l);
+      // Block has finished de*ciphering.
-}
+      // Let's generate a new set of round keys.
+      GenerateRoundKeys((Block)roundKeys.back());
 
-GhettoCipher::Halfblock GhettoCipher::Feistel::F(Halfblock m, const Block& key) {
+      return FeistelCombine(r, l);
-    // Made-up F function
+  }
 
-    // Expand to full bitwidth
+  Halfblock Feistel::F(Halfblock m, const Block& key) {
-    Block m_expanded = ExpansionFunction(m);
+      // Made-up F function
 
-    // Shift to left by 1
+      // Expand to full bitwidth
-    m_expanded = Shiftl(m_expanded, 1);
+      Block m_expanded = ExpansionFunction(m);
 
-    // Xor with key
+      // Shift to left by 1
-    m_expanded ^= key;
+      m_expanded = Shiftl(m_expanded, 1);
 
-    // Non-linearly apply subsitution boxes
+      // Xor with key
-    std::stringstream ss;
+      m_expanded ^= key;
-    const std::string m_str = m_expanded.to_string();
 
-    for (std::size_t i = 0; i < BLOCK_SIZE; i += 4) {
+      // Non-linearly apply subsitution boxes
-        ss << SBox(m_str.substr(i, 4));
+      std::stringstream ss;
-    }
+      const std::string m_str = m_expanded.to_string();
 
-    m_expanded = Block(ss.str());
+      for (std::size_t i = 0; i < BLOCK_SIZE; i += 4) {
+          ss << SBox(m_str.substr(i, 4));
+      }
 
-    // Return the compressed version
+      m_expanded = Block(ss.str());
-    return CompressionFunction(m_expanded);
-}
 
-std::pair<GhettoCipher::Halfblock, GhettoCipher::Halfblock> GhettoCipher::Feistel::FeistelSplit(const Block& block) {
+      // Return the compressed version
-    const std::string bits = block.to_string();
+      return CompressionFunction(m_expanded);
+  }
 
-    Halfblock l(bits.substr(0, bits.size() / 2));
+  std::pair<Halfblock, Halfblock> Feistel::FeistelSplit(const Block& block) {
-    Halfblock r(bits.substr(bits.size() / 2));
+      const std::string bits = block.to_string();
 
-    return std::make_pair(l, r);
+      Halfblock l(bits.substr(0, bits.size() / 2));
-}
+      Halfblock r(bits.substr(bits.size() / 2));
 
-GhettoCipher::Block GhettoCipher::Feistel::FeistelCombine(const Halfblock& l, const Halfblock& r) {
+      return std::make_pair(l, r);
-    return Block(l.to_string() + r.to_string());
+  }
-}
 
-GhettoCipher::Block GhettoCipher::Feistel::ExpansionFunction(const Halfblock& block) {
+  Block Feistel::FeistelCombine(const Halfblock& l, const Halfblock& r) {
-    std::stringstream ss;
+      return Block(l.to_string() + r.to_string());
-    const std::string bits = block.to_string();
+  }
 
-    std::unordered_map<std::string, std::string> expansionMap;
+  Block Feistel::ExpansionFunction(const Halfblock& block) {
-    expansionMap["00"] = "1101";
+      std::stringstream ss;
-    expansionMap["01"] = "1000";
+      const std::string bits = block.to_string();
-    expansionMap["10"] = "0010";
-    expansionMap["11"] = "0111";
 
-    // We have to double the bits!
+      std::unordered_map<std::string, std::string> expansionMap;
-    for (std::size_t i = 0; i < HALFBLOCK_SIZE; i += 2) {
+      expansionMap["00"] = "1101";
-        const std::string sub = bits.substr(i, 2);
+      expansionMap["01"] = "1000";
-        ss << expansionMap[sub];
+      expansionMap["10"] = "0010";
-    }
+      expansionMap["11"] = "0111";
 
-    return Block(ss.str());
+      // We have to double the bits!
-}
+      for (std::size_t i = 0; i < HALFBLOCK_SIZE; i += 2) {
+          const std::string sub = bits.substr(i, 2);
+          ss << expansionMap[sub];
+      }
 
-GhettoCipher::Halfblock GhettoCipher::Feistel::CompressionFunction(const Block& block) {
+      return Block(ss.str());
-    std::stringstream ss;
+  }
-    const std::string bits = block.to_string();
 
-    std::unordered_map<std::string, std::string> compressionMap;
+  Halfblock Feistel::CompressionFunction(const Block& block) {
-    compressionMap["0000"] = "10";
+      std::stringstream ss;
-    compressionMap["0001"] = "01";
+      const std::string bits = block.to_string();
-    compressionMap["0010"] = "10";
-    compressionMap["0011"] = "10";
-    compressionMap["0100"] = "11";
-    compressionMap["0101"] = "01";
-    compressionMap["0110"] = "00";
-    compressionMap["0111"] = "11";
-    compressionMap["1000"] = "01";
-    compressionMap["1001"] = "00";
-    compressionMap["1010"] = "11";
-    compressionMap["1011"] = "00";
-    compressionMap["1100"] = "11";
-    compressionMap["1101"] = "10";
-    compressionMap["1110"] = "00";
-    compressionMap["1111"] = "01";
 
-    // We have to half the bits!
+      std::unordered_map<std::string, std::string> compressionMap;
-    for (std::size_t i = 0; i < BLOCK_SIZE; i += 4) {
+      compressionMap["0000"] = "10";
-        const std::string sub = bits.substr(i, 4);
+      compressionMap["0001"] = "01";
-        ss << compressionMap[sub];
+      compressionMap["0010"] = "10";
-    }
+      compressionMap["0011"] = "10";
+      compressionMap["0100"] = "11";
+      compressionMap["0101"] = "01";
+      compressionMap["0110"] = "00";
+      compressionMap["0111"] = "11";
+      compressionMap["1000"] = "01";
+      compressionMap["1001"] = "00";
+      compressionMap["1010"] = "11";
+      compressionMap["1011"] = "00";
+      compressionMap["1100"] = "11";
+      compressionMap["1101"] = "10";
+      compressionMap["1110"] = "00";
+      compressionMap["1111"] = "01";
 
-    return Halfblock(ss.str());
+      // We have to half the bits!
-}
+      for (std::size_t i = 0; i < BLOCK_SIZE; i += 4) {
+          const std::string sub = bits.substr(i, 4);
+          ss << compressionMap[sub];
+      }
 
-std::string GhettoCipher::Feistel::SBox(const std::string& in) {
+      return Halfblock(ss.str());
-    static std::unordered_map<std::string, std::string> subMap;
+  }
-    static bool mapInitialized = false;
-    if (!mapInitialized) {
-        subMap["0000"] = "1100";
-        subMap["0001"] = "1000";
-        subMap["0010"] = "0001";
-        subMap["0011"] = "0111";
-        subMap["0100"] = "1011";
-        subMap["0101"] = "0011";
-        subMap["0110"] = "1101";
-        subMap["0111"] = "1111";
-        subMap["1000"] = "0000";
-        subMap["1001"] = "1010";
-        subMap["1010"] = "0100";
-        subMap["1011"] = "1001";
-        subMap["1100"] = "0010";
-        subMap["1101"] = "1110";
-        subMap["1110"] = "0101";
-        subMap["1111"] = "0110";
-        mapInitialized = true;
-    }
 
-    return subMap[in];
+  std::string Feistel::SBox(const std::string& in) {
-}
+      static std::unordered_map<std::string, std::string> subMap;
+      static bool mapInitialized = false;
+      if (!mapInitialized) {
+          subMap["0000"] = "1100";
+          subMap["0001"] = "1000";
+          subMap["0010"] = "0001";
+          subMap["0011"] = "0111";
+          subMap["0100"] = "1011";
+          subMap["0101"] = "0011";
+          subMap["0110"] = "1101";
+          subMap["0111"] = "1111";
+          subMap["1000"] = "0000";
+          subMap["1001"] = "1010";
+          subMap["1010"] = "0100";
+          subMap["1011"] = "1001";
+          subMap["1100"] = "0010";
+          subMap["1101"] = "1110";
+          subMap["1110"] = "0101";
+          subMap["1111"] = "0110";
+          mapInitialized = true;
+      }
 
-void GhettoCipher::Feistel::GenerateRoundKeys(const Block& seedKey) {
+      return subMap[in];
-    // Clear initial key memory
+  }
-    ZeroKeyMemory();
-    roundKeys = Keyset();
 
-    // Derive the initial two round keys
+  void Feistel::GenerateRoundKeys(const Block& seedKey) {
+      // Clear initial key memory
+      ZeroKeyMemory();
+      roundKeys = Keyset();
 
-    // Compress- substitute, and expand the seed key to form the initial and the second-initial round key
+      // Derive the initial two round keys
-    // This action is non-linear and irreversible, and thus strenghtens security.
-    Halfblock compressedSeed1 = CompressionFunction(seedKey);
-    Halfblock compressedSeed2 = CompressionFunction(Shiftl(seedKey, 1)); // Shifting one key by 1 will result in a completely different compression
 
-    // To add further confusion, let's shift seed1 by 1 aswell (after compression, but before substitution)
+      // Compress- substitute, and expand the seed key to form the initial and the second-initial round key
-    // but only if the total number of bits set are a multiple of 3
+      // This action is non-linear and irreversible, and thus strenghtens security.
-    // if it is a multiple of 4, we'll shift it by 1 into the opposite direction
+      Halfblock compressedSeed1 = CompressionFunction(seedKey);
-    const std::size_t setBits1 = compressedSeed1.count();
+      Halfblock compressedSeed2 = CompressionFunction(Shiftl(seedKey, 1)); // Shifting one key by 1 will result in a completely different compression
 
-    if (setBits1 % 4 == 0) {
+      // To add further confusion, let's shift seed1 by 1 aswell (after compression, but before substitution)
-        compressedSeed1 = Shiftr(compressedSeed1, 1);
+      // but only if the total number of bits set are a multiple of 3
-    }
+      // if it is a multiple of 4, we'll shift it by 1 into the opposite direction
-    else if (setBits1 % 3 == 0) {
+      const std::size_t setBits1 = compressedSeed1.count();
-        compressedSeed1 = Shiftl(compressedSeed1, 1);
-    }
 
-    // Now apply substitution
+      if (setBits1 % 4 == 0) {
-    std::stringstream ssKey1;
+          compressedSeed1 = Shiftr(compressedSeed1, 1);
-    std::stringstream ssKey2;
+      }
-    const std::string bitsKey1 = compressedSeed1.to_string();
+      else if (setBits1 % 3 == 0) {
-    const std::string bitsKey2 = compressedSeed2.to_string();
+          compressedSeed1 = Shiftl(compressedSeed1, 1);
+      }
 
-    for (std::size_t i = 0; i < HALFBLOCK_SIZE; i += 4) {
+      // Now apply substitution
-        ssKey1 << SBox(bitsKey1.substr(i, 4));
+      std::stringstream ssKey1;
-        ssKey2 << SBox(bitsKey2.substr(i, 4));
+      std::stringstream ssKey2;
-    }
+      const std::string bitsKey1 = compressedSeed1.to_string();
+      const std::string bitsKey2 = compressedSeed2.to_string();
 
-    compressedSeed1 = Halfblock(ssKey1.str());
+      for (std::size_t i = 0; i < HALFBLOCK_SIZE; i += 4) {
-    compressedSeed2 = Halfblock(ssKey2.str());
+          ssKey1 << SBox(bitsKey1.substr(i, 4));
+          ssKey2 << SBox(bitsKey2.substr(i, 4));
+      }
 
-    // Now extrapolate them to BLOCK_SIZE (key size) again
+      compressedSeed1 = Halfblock(ssKey1.str());
-    // Xor with the original seed key to get rid of the repititions caused by the expansion
+      compressedSeed2 = Halfblock(ssKey2.str());
-    roundKeys[0] = ExpansionFunction(compressedSeed1) ^ seedKey;
-    roundKeys[1] = ExpansionFunction(compressedSeed2) ^ seedKey;
 
-    // Now derive all other round keys
+      // Now extrapolate them to BLOCK_SIZE (key size) again
+      // Xor with the original seed key to get rid of the repititions caused by the expansion
+      roundKeys[0] = ExpansionFunction(compressedSeed1) ^ seedKey;
+      roundKeys[1] = ExpansionFunction(compressedSeed2) ^ seedKey;
 
-    for (std::size_t i = 2; i < roundKeys.size(); i++) {
+      // Now derive all other round keys
-        // Initialize new round key with last round key
-        Block newKey = roundKeys[i - 1];
 
-        // Shift to left by how many bits are set, modulo 8
+      for (std::size_t i = 2; i < roundKeys.size(); i++) {
-        newKey = Shiftl(newKey, newKey.count() % 8); // This action is irreversible
+          // Initialize new round key with last round key
+          Block newKey = roundKeys[i - 1];
 
-        // Split into two halfblocks,
+          // Shift to left by how many bits are set, modulo 8
-        // apply F() to one halfblock with rk[i-2],
+          newKey = Shiftl(newKey, newKey.count() % 8); // This action is irreversible
-        // xor the other one with it
-        // and put them back together
-        auto halfkeys = FeistelSplit(newKey);
-        Halfblock halfkey1 = F(halfkeys.first, roundKeys[i - 2]);
-        Halfblock halfkey2 = halfkeys.second ^ halfkey1; // I know this is reversible, but it helps to diffuse future round keys.
 
-        roundKeys[i] = FeistelCombine(halfkey1, halfkey2);
+          // Split into two halfblocks,
-    }
+          // apply F() to one halfblock with rk[i-2],
+          // xor the other one with it
+          // and put them back together
+          auto halfkeys = FeistelSplit(newKey);
+          Halfblock halfkey1 = F(halfkeys.first, roundKeys[i - 2]);
+          Halfblock halfkey2 = halfkeys.second ^ halfkey1; // I know this is reversible, but it helps to diffuse future round keys.
 
-    return;
+          roundKeys[i] = FeistelCombine(halfkey1, halfkey2);
-}
+      }
 
-// These pragmas only work for MSVC and g++, as far as i know. Beware!!!
+      return;
+  }
+
+  // These pragmas only work for MSVC and g++, as far as i know. Beware!!!
 #if defined _WIN32 || defined _WIN64
 #pragma optimize("", off )
 #elif defined __GNUG__
 #pragma GCC push_options
 #pragma GCC optimize ("O0")
 #endif
-void GhettoCipher::Feistel::ZeroKeyMemory() {
+  void Feistel::ZeroKeyMemory() {
-    for (Block& key : roundKeys) {
+      for (Block& key : roundKeys) {
-        key.reset();
+          key.reset();
-    }
+      }
 
-    return;
+      return;
-}
+  }
 #if defined _WIN32 || defined _WIN64
 #pragma optimize("", on )
 #elif defined __GNUG__
 #pragma GCC pop_options
 #endif
 
+}
+

GhettoCrypt/src/GhettoCryptWrapper.cpp

@@ -2,83 +2,87 @@
 #include "Cipher.h"
 #include "Util.h"
 
-std::string GhettoCipher::GhettoCryptWrapper::EncryptString(const std::string& cleartext, const std::string& password) {
+namespace Leonetienne::GCrypt {
-  // Instanciate our cipher and supply a key
-  const Block key = PasswordToKey(password);
-  Cipher cipher(key);
-
-  // Recode the ascii-string to bits
-  const Flexblock cleartext_bits = StringToBits(cleartext);
-
-  // Encrypt our cleartext bits
-  const Flexblock ciphertext_bits = cipher.Encipher(cleartext_bits);
-
-  // Recode the ciphertext bits to a hex-string
-  const std::string ciphertext = BitsToHexstring(ciphertext_bits);
-
-  // Return it
-  return ciphertext;
-}
-
-std::string GhettoCipher::GhettoCryptWrapper::DecryptString(const std::string& ciphertext, const std::string& password) {
-  // Instanciate our cipher and supply a key
-  const Block key = PasswordToKey(password);
-  Cipher cipher(key);
-
-  // Recode the hex-string to bits
-  const Flexblock ciphertext_bits = HexstringToBits(ciphertext);
-
-  // Decrypt the ciphertext bits
-  const std::string cleartext_bits = cipher.Decipher(ciphertext_bits);
-
-  // Recode the cleartext bits to an ascii-string
-  const std::string cleartext = BitsToString(cleartext_bits);
-
-  // Return it
-  return cleartext;
-}
-
-bool GhettoCipher::GhettoCryptWrapper::EncryptFile(const std::string& filename_in, const std::string& filename_out, const std::string& password, bool printProgressReport) {
-  try {
-    // Read the file to bits
-    const Flexblock cleartext_bits = ReadFileToBits(filename_in);
 
+  std::string GhettoCryptWrapper::EncryptString(const std::string& cleartext, const std::string& password) {
     // Instanciate our cipher and supply a key
     const Block key = PasswordToKey(password);
     Cipher cipher(key);
 
+    // Recode the ascii-string to bits
+    const Flexblock cleartext_bits = StringToBits(cleartext);
+
     // Encrypt our cleartext bits
-    const Flexblock ciphertext_bits = cipher.Encipher(cleartext_bits, printProgressReport);
+    const Flexblock ciphertext_bits = cipher.Encipher(cleartext_bits);
 
-    // Write our ciphertext bits to file
+    // Recode the ciphertext bits to a hex-string
-    WriteBitsToFile(filename_out, ciphertext_bits);
+    const std::string ciphertext = BitsToHexstring(ciphertext_bits);
 
-    return true;
+    // Return it
+    return ciphertext;
   }
-  catch (std::runtime_error&) {
-    return false;
-  }
-}
-
-bool GhettoCipher::GhettoCryptWrapper::DecryptFile(const std::string& filename_in, const std::string& filename_out, const std::string& password, bool printProgressReport) {
-  try {
-    // Read the file to bits
-    const Flexblock ciphertext_bits = ReadFileToBits(filename_in);
 
+  std::string GhettoCryptWrapper::DecryptString(const std::string& ciphertext, const std::string& password) {
     // Instanciate our cipher and supply a key
     const Block key = PasswordToKey(password);
     Cipher cipher(key);
 
+    // Recode the hex-string to bits
+    const Flexblock ciphertext_bits = HexstringToBits(ciphertext);
+
     // Decrypt the ciphertext bits
-    const Flexblock cleartext_bits = cipher.Decipher(ciphertext_bits, printProgressReport);
+    const std::string cleartext_bits = cipher.Decipher(ciphertext_bits);
 
-    // Write our cleartext bits to file
+    // Recode the cleartext bits to an ascii-string
-    WriteBitsToFile(filename_out, cleartext_bits);
+    const std::string cleartext = BitsToString(cleartext_bits);
 
-    return true;
+    // Return it
+    return cleartext;
   }
-  catch (std::runtime_error&) {
+
-    return false;
+  bool GhettoCryptWrapper::EncryptFile(const std::string& filename_in, const std::string& filename_out, const std::string& password, bool printProgressReport) {
+    try {
+      // Read the file to bits
+      const Flexblock cleartext_bits = ReadFileToBits(filename_in);
+
+      // Instanciate our cipher and supply a key
+      const Block key = PasswordToKey(password);
+      Cipher cipher(key);
+
+      // Encrypt our cleartext bits
+      const Flexblock ciphertext_bits = cipher.Encipher(cleartext_bits, printProgressReport);
+
+      // Write our ciphertext bits to file
+      WriteBitsToFile(filename_out, ciphertext_bits);
+
+      return true;
+    }
+    catch (std::runtime_error&) {
+      return false;
+    }
   }
+
+  bool GhettoCryptWrapper::DecryptFile(const std::string& filename_in, const std::string& filename_out, const std::string& password, bool printProgressReport) {
+    try {
+      // Read the file to bits
+      const Flexblock ciphertext_bits = ReadFileToBits(filename_in);
+
+      // Instanciate our cipher and supply a key
+      const Block key = PasswordToKey(password);
+      Cipher cipher(key);
+
+      // Decrypt the ciphertext bits
+      const Flexblock cleartext_bits = cipher.Decipher(ciphertext_bits, printProgressReport);
+
+      // Write our cleartext bits to file
+      WriteBitsToFile(filename_out, cleartext_bits);
+
+      return true;
+    }
+    catch (std::runtime_error&) {
+      return false;
+    }
+  }
+
 }
 

GhettoCrypt/src/InitializationVector.cpp

@@ -1,13 +1,17 @@
 #include "InitializationVector.h"
 #include "Feistel.h"
 
-GhettoCipher::InitializationVector::InitializationVector(const Block& seed) {
+namespace Leonetienne::GCrypt {
-  // We'll generate our initialization vector by encrypting our seed with itself as a key
+
-  // iv = E(M=seed, K=seed)
+  InitializationVector::InitializationVector(const Block& seed) {
-  iv = Feistel(seed).Encipher(seed);
+    // We'll generate our initialization vector by encrypting our seed with itself as a key
-}
+    // iv = E(M=seed, K=seed)
-
+    iv = Feistel(seed).Encipher(seed);
-GhettoCipher::InitializationVector::operator GhettoCipher::Block() const {
+  }
-  return iv;
+
+  InitializationVector::operator Block() const {
+    return iv;
+  }
+
 }