Source: libcrypt-des-ede3-perl Maintainer: Debian Perl Group Uploaders: gregor herrmann Section: perl Testsuite: autopkgtest-pkg-perl Priority: optional Build-Depends: debhelper-compat (= 13) Build-Depends-Indep: libcrypt-des-perl , perl Standards-Version: 4.5.1 Vcs-Browser: https://salsa.debian.org/perl-team/modules/packages/libcrypt-des-ede3-perl Vcs-Git: https://salsa.debian.org/perl-team/modules/packages/libcrypt-des-ede3-perl.git Homepage: https://metacpan.org/release/Crypt-DES_EDE3 Rules-Requires-Root: no Package: libcrypt-des-ede3-perl Architecture: all Depends: ${misc:Depends}, ${perl:Depends}, libcrypt-des-perl Description: Triple-DES EDE encryption/decryption for perl Crypt::DES_EDE3 implements DES-EDE3 encryption. This is triple-DES encryption where an encrypt operation is encrypt-decrypt-encrypt, and decrypt is decrypt-encrypt-decrypt. This implementation uses Crypt::DES to do its dirty DES work, and simply provides a wrapper around that module: setting up the individual DES ciphers, initializing the keys, and performing the encryption/decryption steps. . You're probably best off not using this module directly, as the encrypt and decrypt methods expect 8-octet blocks. You might want to use the module in conjunction with Crypt::CBC, for example. This would be DES-EDE3-CBC, or triple-DES in outer CBC mode.