ESL, or the Extended Small Basic Library, is an extension to Microsoft's Small Basic programming language. Small but powerful, it provides improvements to the functions included in Small Basic's Standard Library, as well as extending and providing its own functions, which allow for more complex functionality within Small Basic programs.
ESL is written in Microsoft Visual C# 5.0, targetting version 3.5 of the .NET Framework. It is released to the public as an open-source project under the MIT (Massachusetts Institute of Technology) Licence. The source code for ESL is available on GitHub, and statistics are available from Ohloh.
Copyright © 2012-2013 Liam McSherry
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
This product makes use of strong cryptography. Please remember that the export and import and/or use of strong cryptography software, providing cryptography hooks, or even communicating technical details about cryptography is illegal in some parts of the world. When you import this package to your country, redistribute it from there, or communicate technical suggestions or source code patches to the author or other entities, you are strongly advised to pay close attention to any exportation or importation laws regarding cryptography which apply to you. The author(s) of ESL are not and cannot be held liable for any violations of law you make. It is your responsibility.
This cryptographic software is lawfully released under the terms described in sections 5A002 and 5D002 of the UK Strategic Export Control Lists by being made available electronically without restriction, by forfeiting substantial support from the supplier to users, by attempting to ensure that cryptographic functions cannot easily be modified, and by allowing unrestricted access by Member States to this software.
CRC32 implementation adapted from a reference version, author unknown. This implementation uses the polynomial 04C11DB716, as specified in ANSI X3.66.
CRC64 implementation adapted from a University College London (UCL) implementation. This implementation uses the polynomial 42F0E1EBA9EA369316, as specified in ECMA-182.
XTEA implementation based on a reference version released by Roger Needham and David Wheeler. This implementation is property and copyright of Liam McSherry. This implementation uses ANSI X.923 padding without a cipher mode.
RC2, DES, TDEA (3DES), AES, MD5, SHA1, SHA2, and RIPEMD160 implementations provided by Microsoft Corporation as part of the .NET Framework.