VeraCrypt - Free Open source disk encryption with strong security for the Paranoid

diff options

Diffstat (limited to 'src/Volume/EncryptionAlgorithm.h')

0 files changed, 0 insertions, 0 deletions

/* Derived from source code of TrueCrypt 7.1a, which is Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed by the TrueCrypt License 3.0. Modifications and additions to the original source code (contained in this file) and all other portions of this file are Copyright (c) 2013-2017 IDRIX and are governed by the Apache License 2.0 the full text of which is contained in the file License.txt included in VeraCrypt binary and source code distribution packages. */ #include "EncryptionAlgorithm.h" #include "EncryptionModeXTS.h" namespace VeraCrypt { EncryptionAlgorithm::EncryptionAlgorithm () : Deprecated (false) { } EncryptionAlgorithm::~EncryptionAlgorithm () { } void EncryptionAlgorithm::Decrypt (byte *data, uint64 length) const { if_debug (ValidateState ()); Mode->Decrypt (data, length); } void EncryptionAlgorithm::Decrypt (const BufferPtr &data) const { Decrypt (data, data.Size()); } void EncryptionAlgorithm::DecryptSectors (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const { if_debug (ValidateState()); Mode->DecryptSectors (data, sectorIndex, sectorCount, sectorSize); } void EncryptionAlgorithm::Encrypt (byte *data, uint64 length) const { if_debug (ValidateState()); Mode->Encrypt (data, length); } void EncryptionAlgorithm::Encrypt (const BufferPtr &data) const { Encrypt (data, data.Size()); } void EncryptionAlgorithm::EncryptSectors (byte *data, uint64 sectorIndex, uint64 sectorCount, size_t sectorSize) const { if_debug (ValidateState ()); Mode->EncryptSectors (data, sectorIndex, sectorCount, sectorSize); } EncryptionAlgorithmList EncryptionAlgorithm::GetAvailableAlgorithms () { EncryptionAlgorithmList l; l.push_back (shared_ptr <EncryptionAlgorithm> (new AES ())); l.push_back (shared_ptr <EncryptionAlgorithm> (new Serpent ())); l.push_back (shared_ptr <EncryptionAlgorithm> (new Twofish ())); l.push_back (shared_ptr <EncryptionAlgorithm> (new Camellia ())); l.push_back (shared_ptr <EncryptionAlgorithm> (new GOST89 ())); l.push_back (shared_ptr <EncryptionAlgorithm> (new Kuznyechik ())); l.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofish ())); l.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofishSerpent ())); l.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentAES ())); l.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentTwofishAES ())); l.push_back (shared_ptr <EncryptionAlgorithm> (new TwofishSerpent ())); return l; } size_t EncryptionAlgorithm::GetLargestKeySize (const EncryptionAlgorithmList &algorithms) { size_t largestKeySize = 0; foreach_ref (const EncryptionAlgorithm &ea, algorithms) { if (ea.GetKeySize() > largestKeySize) largestKeySize = ea.GetKeySize(); } return largestKeySize; } size_t EncryptionAlgorithm::GetKeySize () const { if (Ciphers.size() < 1) throw NotInitialized (SRC_POS); size_t keySize = 0; foreach_ref (const Cipher &c, Ciphers) keySize += c.GetKeySize(); return keySize; } size_t EncryptionAlgorithm::GetMaxBlockSize () const { size_t blockSize = 0; foreach_ref (const Cipher &c, Ciphers) if (c.GetBlockSize() > blockSize) blockSize = c.GetBlockSize(); return blockSize; } size_t EncryptionAlgorithm::GetMinBlockSize () const { size_t blockSize = 0; foreach_ref (const Cipher &c, Ciphers) if (blockSize == 0 || c.GetBlockSize() < blockSize) blockSize = c.GetBlockSize(); return blockSize; } shared_ptr <EncryptionMode> EncryptionAlgorithm::GetMode () const { if (Mode.get() == nullptr) throw NotInitialized (SRC_POS); return Mode; } wstring EncryptionAlgorithm::GetName (bool forGuiDisplay) const { if (Ciphers.size() < 1) throw NotInitialized (SRC_POS); wstring name; int depth = 0; foreach_reverse_ref (const Cipher &c, Ciphers) { if (name.empty()) name = c.GetName(); else { depth++; if (forGuiDisplay) name += wstring (L"("); else name += wstring (L"-"); name += c.GetName(); } } if (forGuiDisplay && depth) { for (int i = 0; i < depth; i++) name += wstring(L")"); } return name; } bool EncryptionAlgorithm::IsModeSupported (const EncryptionMode &mode) const { bool supported = false; foreach_ref (const EncryptionMode &em, SupportedModes) { if (typeid (mode) == typeid (em)) { supported = true; break; } } return supported; } bool EncryptionAlgorithm::IsModeSupported (const shared_ptr <EncryptionMode> mode) const { return IsModeSupported (*mode); } void EncryptionAlgorithm::SetMode (shared_ptr <EncryptionMode> mode) { if (!IsModeSupported (*mode)) throw ParameterIncorrect (SRC_POS); mode->SetCiphers (Ciphers); Mode = mode; } void EncryptionAlgorithm::SetKey (const ConstBufferPtr &key) { if (Ciphers.size() < 1) throw NotInitialized (SRC_POS); if (GetKeySize() != key.Size()) throw ParameterIncorrect (SRC_POS); size_t keyOffset = 0; foreach_ref (Cipher &c, Ciphers) { c.SetKey (key.GetRange (keyOffset, c.GetKeySize())); keyOffset += c.GetKeySize(); } } void EncryptionAlgorithm::ValidateState () const { if (Ciphers.size() < 1 || Mode.get() == nullptr) throw NotInitialized (SRC_POS); } // AES AES::AES () { Ciphers.push_back (shared_ptr <Cipher> (new CipherAES())); SupportedModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); } // AES-Twofish AESTwofish::AESTwofish () { Ciphers.push_back (shared_ptr <Cipher> (new CipherTwofish ())); Ciphers.push_back (shared_ptr <Cipher> (new CipherAES ())); SupportedModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); } // AES-Twofish-Serpent AESTwofishSerpent::AESTwofishSerpent () { Ciphers.push_back (shared_ptr <Cipher> (new CipherSerpent ())); Ciphers.push_back (shared_ptr <Cipher> (new CipherTwofish ())); Ciphers.push_back (shared_ptr <Cipher> (new CipherAES ())); SupportedModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); } // Serpent Serpent::Serpent () { Ciphers.push_back (shared_ptr <Cipher> (new CipherSerpent())); SupportedModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); } // Serpent-AES SerpentAES::SerpentAES () { Ciphers.push_back (shared_ptr <Cipher> (new CipherAES ())); Ciphers.push_back (shared_ptr <Cipher> (new CipherSerpent ())); SupportedModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); } // Twofish Twofish::Twofish () { Ciphers.push_back (shared_ptr <Cipher> (new CipherTwofish())); SupportedModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); } // Twofish-Serpent TwofishSerpent::TwofishSerpent () { Ciphers.push_back (shared_ptr <Cipher> (new CipherSerpent ())); Ciphers.push_back (shared_ptr <Cipher> (new CipherTwofish ())); SupportedModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); } // Serpent-Twofish-AES SerpentTwofishAES::SerpentTwofishAES () { Ciphers.push_back (shared_ptr <Cipher> (new CipherAES ())); Ciphers.push_back (shared_ptr <Cipher> (new CipherTwofish ())); Ciphers.push_back (shared_ptr <Cipher> (new CipherSerpent ())); SupportedModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); } // Camellia Camellia::Camellia () { Ciphers.push_back (shared_ptr <Cipher> (new CipherCamellia())); SupportedModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); } // GOST89 GOST89::GOST89 () { Deprecated = true; Ciphers.push_back (shared_ptr <Cipher> (new CipherGost89())); SupportedModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); } // Kuznyechik Kuznyechik::Kuznyechik () { Ciphers.push_back (shared_ptr <Cipher> (new CipherKuznyechik())); SupportedModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); } }


context:
space:
mode: