P5-crypt-des_pp

Jul 20, 2023

Perl extension for DES encryption in pure Perl

The Data Encryption Standard DES, also known as Data Encryption Algorithm DEA is a semi-strong encryption and decryption algorithm. The module is 100 compatible to CryptDES but is implemented entirely in Perl. That means that you do not need a C compiler to build and install this extension. The module implements the CryptCBC interface. You are encouraged to read the documentation for CryptCBC if you intend to use this module for Cipher Block Chaining. The minimum and maximum key size is 8 bytes. Shorter keys will cause an exception, longer keys will get silently truncated. Data is encrypted and decrypted in blocks of 8 bytes. The module implements the Ultra-Fast-Crypt UFC algorithm as found for example in the GNU libc. On the Perl side a lot has been done in order to make the module as fast as possible function inlining, use integer, …. Note For performance issues the source code for the module is first preprocessed by m4. That means that you need an m4 macro processor in order to hack on the sources. This is of no concern for you if you only want to use the module, the preprocessed output is always included in the distribution.



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