diff options
Diffstat (limited to 'indra/llmessage/llxorcipher.cpp')
| -rw-r--r-- | indra/llmessage/llxorcipher.cpp | 112 |
1 files changed, 56 insertions, 56 deletions
diff --git a/indra/llmessage/llxorcipher.cpp b/indra/llmessage/llxorcipher.cpp index 17651b1ecf..8db4fca629 100644 --- a/indra/llmessage/llxorcipher.cpp +++ b/indra/llmessage/llxorcipher.cpp @@ -1,25 +1,25 @@ -/** +/** * @file llxorcipher.cpp * @brief Implementation of LLXORCipher * * $LicenseInfo:firstyear=2003&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -35,94 +35,94 @@ ///---------------------------------------------------------------------------- LLXORCipher::LLXORCipher(const U8* pad, U32 pad_len) : - mPad(NULL), - mHead(NULL), - mPadLen(0) + mPad(NULL), + mHead(NULL), + mPadLen(0) { - init(pad, pad_len); + init(pad, pad_len); } // Destroys the object LLXORCipher::~LLXORCipher() { - init(NULL, 0); + init(NULL, 0); } LLXORCipher::LLXORCipher(const LLXORCipher& cipher) : - mPad(NULL), - mHead(NULL), - mPadLen(0) + mPad(NULL), + mHead(NULL), + mPadLen(0) { - init(cipher.mPad, cipher.mPadLen); + init(cipher.mPad, cipher.mPadLen); } LLXORCipher& LLXORCipher::operator=(const LLXORCipher& cipher) { - if(this == &cipher) return *this; - init(cipher.mPad, cipher.mPadLen); - return *this; + if(this == &cipher) return *this; + init(cipher.mPad, cipher.mPadLen); + return *this; } U32 LLXORCipher::encrypt(const U8* src, U32 src_len, U8* dst, U32 dst_len) { - if(!src || !src_len || !dst || !dst_len || !mPad) return 0; - U8* pad_end = mPad + mPadLen; - U32 count = src_len; - while(count--) - { - *dst++ = *src++ ^ *mHead++; - if(mHead >= pad_end) mHead = mPad; - } - return src_len; + if(!src || !src_len || !dst || !dst_len || !mPad) return 0; + U8* pad_end = mPad + mPadLen; + U32 count = src_len; + while(count--) + { + *dst++ = *src++ ^ *mHead++; + if(mHead >= pad_end) mHead = mPad; + } + return src_len; } U32 LLXORCipher::decrypt(const U8* src, U32 src_len, U8* dst, U32 dst_len) { - // xor is a symetric cipher, thus, just call the other function. - return encrypt(src, src_len, dst, dst_len); + // xor is a symetric cipher, thus, just call the other function. + return encrypt(src, src_len, dst, dst_len); } U32 LLXORCipher::requiredEncryptionSpace(U32 len) const { - return len; + return len; } void LLXORCipher::init(const U8* pad, U32 pad_len) { - if(mPad) - { - delete [] mPad; - mPad = NULL; - mPadLen = 0; - } - if(pad && pad_len) - { - mPadLen = pad_len; - mPad = new U8[mPadLen]; - if (mPad != NULL) - { - memcpy(mPad, pad, mPadLen); /* Flawfinder : ignore */ - } - } - mHead = mPad; + if(mPad) + { + delete [] mPad; + mPad = NULL; + mPadLen = 0; + } + if(pad && pad_len) + { + mPadLen = pad_len; + mPad = new U8[mPadLen]; + if (mPad != NULL) + { + memcpy(mPad, pad, mPadLen); /* Flawfinder : ignore */ + } + } + mHead = mPad; } #ifdef _DEBUG // static bool LLXORCipher::testHarness() { - const U32 PAD_LEN = 3; - const U8 PAD[] = "abc"; - const S32 MSG_LENGTH = 12; - const char MESSAGE[MSG_LENGTH+1] = "gesundheight"; /* Flawfinder : ignore */ - U8 encrypted[MSG_LENGTH]; - U8 decrypted[MSG_LENGTH]; + const U32 PAD_LEN = 3; + const U8 PAD[] = "abc"; + const S32 MSG_LENGTH = 12; + const char MESSAGE[MSG_LENGTH+1] = "gesundheight"; /* Flawfinder : ignore */ + U8 encrypted[MSG_LENGTH]; + U8 decrypted[MSG_LENGTH]; - LLXORCipher cipher(PAD, PAD_LEN); - cipher.encrypt((U8*)MESSAGE, MSG_LENGTH, encrypted, MSG_LENGTH); - cipher.decrypt(encrypted, MSG_LENGTH, decrypted, MSG_LENGTH); + LLXORCipher cipher(PAD, PAD_LEN); + cipher.encrypt((U8*)MESSAGE, MSG_LENGTH, encrypted, MSG_LENGTH); + cipher.decrypt(encrypted, MSG_LENGTH, decrypted, MSG_LENGTH); - if(0 != memcmp((void*)MESSAGE, decrypted, MSG_LENGTH)) return false; - return true; + if(0 != memcmp((void*)MESSAGE, decrypted, MSG_LENGTH)) return false; + return true; } #endif |