00001 #ifndef __CRYPTO_CIPHER_H__ 00002 #define __CRYPTO_CIPHER_H__ 00003 /******************************************************************************/ 00004 /* */ 00005 /* X r d C r y p t o C i p h e r . h h */ 00006 /* */ 00007 /* (c) 2004 by the Board of Trustees of the Leland Stanford, Jr., University */ 00008 /* Produced by Gerri Ganis for CERN */ 00009 /* */ 00010 /* This file is part of the XRootD software suite. */ 00011 /* */ 00012 /* XRootD is free software: you can redistribute it and/or modify it under */ 00013 /* the terms of the GNU Lesser General Public License as published by the */ 00014 /* Free Software Foundation, either version 3 of the License, or (at your */ 00015 /* option) any later version. */ 00016 /* */ 00017 /* XRootD is distributed in the hope that it will be useful, but WITHOUT */ 00018 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */ 00019 /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */ 00020 /* License for more details. */ 00021 /* */ 00022 /* You should have received a copy of the GNU Lesser General Public License */ 00023 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */ 00024 /* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */ 00025 /* */ 00026 /* The copyright holder's institutional names and contributor's names may not */ 00027 /* be used to endorse or promote products derived from this software without */ 00028 /* specific prior written permission of the institution or contributor. */ 00029 /******************************************************************************/ 00030 00031 /* ************************************************************************** */ 00032 /* */ 00033 /* Abstract interface for a symmetric Cipher functionality. */ 00034 /* Allows to plug-in modules based on different crypto implementation */ 00035 /* (OpenSSL, Botan, ...) */ 00036 /* */ 00037 /* ************************************************************************** */ 00038 00039 #include "XrdSut/XrdSutBucket.hh" 00040 #include "XrdCrypto/XrdCryptoBasic.hh" 00041 00042 // ---------------------------------------------------------------------------// 00043 // 00044 // Cipher interface 00045 // 00046 // ---------------------------------------------------------------------------// 00047 class XrdCryptoCipher : public XrdCryptoBasic 00048 { 00049 public: 00050 XrdCryptoCipher() : XrdCryptoBasic() {} 00051 virtual ~XrdCryptoCipher() {} 00052 00053 // Finalize key computation (key agreement) 00054 virtual bool Finalize(bool padded, char *pub, int lpub, const char *t); 00055 bool Finalize(char *pub, int lpub, const char *t) 00056 { return Finalize(false, pub, lpub, t); } 00057 00058 // Validity 00059 virtual bool IsValid(); 00060 00061 // Required buffer size for encrypt / decrypt operations on l bytes 00062 virtual int EncOutLength(int l); 00063 virtual int DecOutLength(int l); 00064 00065 // Additional getters 00066 virtual XrdSutBucket *AsBucket(); 00067 virtual char *IV(int &l) const; 00068 virtual bool IsDefaultLength() const; 00069 virtual char *Public(int &lpub); 00070 virtual int MaxIVLength() const; 00071 00072 // Additional setters 00073 virtual void SetIV(int l, const char *iv); 00074 00075 // Additional methods 00076 virtual int Encrypt(const char *in, int lin, char *out); 00077 virtual int Decrypt(const char *in, int lin, char *out); 00078 int Encrypt(XrdSutBucket &buck, bool useiv = true); 00079 int Decrypt(XrdSutBucket &buck, bool useiv = true); 00080 virtual char *RefreshIV(int &l); 00081 }; 00082 00083 #endif