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Annotation of truecrypt/volume/pkcs5kdf.cpp, revision 1.1

1.1     ! root        1: /*
        !             2:  Copyright (c) 2008 TrueCrypt Foundation. All rights reserved.
        !             3: 
        !             4:  Governed by the TrueCrypt License 2.4 the full text of which is contained
        !             5:  in the file License.txt included in TrueCrypt binary and source code
        !             6:  distribution packages.
        !             7: */
        !             8: 
        !             9: #include "Common/Pkcs5.h"
        !            10: #include "Pkcs5Kdf.h"
        !            11: #include "VolumePassword.h"
        !            12: 
        !            13: namespace TrueCrypt
        !            14: {
        !            15:        Pkcs5Kdf::Pkcs5Kdf ()
        !            16:        {
        !            17:        }
        !            18: 
        !            19:        Pkcs5Kdf::~Pkcs5Kdf ()
        !            20:        {
        !            21:        }
        !            22: 
        !            23:        void Pkcs5Kdf::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt) const
        !            24:        {
        !            25:                DeriveKey (key, password, salt, GetIterationCount());
        !            26:        }
        !            27:        
        !            28:        shared_ptr <Pkcs5Kdf> Pkcs5Kdf::GetAlgorithm (const wstring &name)
        !            29:        {
        !            30:                foreach (shared_ptr <Pkcs5Kdf> kdf, GetAvailableAlgorithms())
        !            31:                {
        !            32:                        if (kdf->GetName() == name)
        !            33:                                return kdf;
        !            34:                }
        !            35:                throw ParameterIncorrect (SRC_POS);
        !            36:        }
        !            37: 
        !            38:        shared_ptr <Pkcs5Kdf> Pkcs5Kdf::GetAlgorithm (const Hash &hash)
        !            39:        {
        !            40:                foreach (shared_ptr <Pkcs5Kdf> kdf, GetAvailableAlgorithms())
        !            41:                {
        !            42:                        if (typeid (*kdf->GetHash()) == typeid (hash))
        !            43:                                return kdf;
        !            44:                }
        !            45: 
        !            46:                throw ParameterIncorrect (SRC_POS);
        !            47:        }
        !            48: 
        !            49:        Pkcs5KdfList Pkcs5Kdf::GetAvailableAlgorithms ()
        !            50:        {
        !            51:                Pkcs5KdfList l;
        !            52:                
        !            53:                l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacRipemd160 ()));
        !            54:                l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacSha512 ()));
        !            55:                l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacWhirlpool ()));
        !            56:                l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacSha1 ()));
        !            57: 
        !            58:                return l;
        !            59:        }
        !            60: 
        !            61:        void Pkcs5Kdf::ValidateParameters (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
        !            62:        {
        !            63:                if (key.Size() < 1 || password.Size() < 1 || salt.Size() < 1 || iterationCount < 1)
        !            64:                        throw ParameterIncorrect (SRC_POS);
        !            65:        }
        !            66: 
        !            67:        void Pkcs5HmacRipemd160::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
        !            68:        {
        !            69:                ValidateParameters (key, password, salt, iterationCount);
        !            70:                derive_key_ripemd160 ((char *) password.DataPtr(), (int) password.Size(), (char *) salt.Get(), (int) salt.Size(), iterationCount, (char *) key.Get(), (int) key.Size());
        !            71:        }
        !            72: 
        !            73:        void Pkcs5HmacSha1::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
        !            74:        {
        !            75:                ValidateParameters (key, password, salt, iterationCount);
        !            76:                derive_key_sha1 ((char *) password.DataPtr(), (int) password.Size(), (char *) salt.Get(), (int) salt.Size(), iterationCount, (char *) key.Get(), (int) key.Size());
        !            77:        }
        !            78: 
        !            79:        void Pkcs5HmacSha512::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
        !            80:        {
        !            81:                ValidateParameters (key, password, salt, iterationCount);
        !            82:                derive_key_sha512 ((char *) password.DataPtr(), (int) password.Size(), (char *) salt.Get(), (int) salt.Size(), iterationCount, (char *) key.Get(), (int) key.Size());
        !            83:        }
        !            84: 
        !            85:        void Pkcs5HmacWhirlpool::DeriveKey (const BufferPtr &key, const VolumePassword &password, const ConstBufferPtr &salt, int iterationCount) const
        !            86:        {
        !            87:                ValidateParameters (key, password, salt, iterationCount);
        !            88:                derive_key_whirlpool ((char *) password.DataPtr(), (int) password.Size(), (char *) salt.Get(), (int) salt.Size(), iterationCount, (char *) key.Get(), (int) key.Size());
        !            89:        }
        !            90: }

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