From 3f619478f796eddbba6e39502fe941b285dd97b1 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 4 May 2024 20:00:34 +0200 Subject: Adding upstream version 1:10.11.6. Signed-off-by: Daniel Baumann --- sql/sql_crypt.cc | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 sql/sql_crypt.cc (limited to 'sql/sql_crypt.cc') diff --git a/sql/sql_crypt.cc b/sql/sql_crypt.cc new file mode 100644 index 00000000..edff85a0 --- /dev/null +++ b/sql/sql_crypt.cc @@ -0,0 +1,77 @@ +/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; version 2 of the License. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */ + + + +/* + Functions to handle the encode() and decode() functions + The strongness of this crypt is large based on how good the random + generator is. It should be ok for short strings, but for communication one + needs something like 'ssh'. +*/ + +#ifdef USE_PRAGMA_IMPLEMENTATION +#pragma implementation // gcc: Class implementation +#endif + +#include "mariadb.h" +#include "sql_priv.h" +#include "sql_crypt.h" +#include "password.h" + +void SQL_CRYPT::init(ulong *rand_nr) +{ + uint i; + my_rnd_init(&rand,rand_nr[0],rand_nr[1]); + + for (i=0 ; i<=255; i++) + decode_buff[i]= (char) i; + + for (i=0 ; i<= 255 ; i++) + { + int idx= (uint) (my_rnd(&rand)*255.0); + char a= decode_buff[idx]; + decode_buff[idx]= decode_buff[i]; + decode_buff[+i]=a; + } + for (i=0 ; i <= 255 ; i++) + encode_buff[(uchar) decode_buff[i]]=i; + org_rand=rand; + shift=0; +} + + +void SQL_CRYPT::encode(char *str,uint length) +{ + for (uint i=0; i < length; i++) + { + shift^=(uint) (my_rnd(&rand)*255.0); + uint idx= (uint) (uchar) str[0]; + *str++ = (char) ((uchar) encode_buff[idx] ^ shift); + shift^= idx; + } +} + + +void SQL_CRYPT::decode(char *str,uint length) +{ + for (uint i=0; i < length; i++) + { + shift^=(uint) (my_rnd(&rand)*255.0); + uint idx= (uint) ((uchar) str[0] ^ shift); + *str = decode_buff[idx]; + shift^= (uint) (uchar) *str++; + } +} -- cgit v1.2.3