May 26, 2018

Pure-Perl OpenPGP-compatible PGP implementation

CryptOpenPGP is a pure-Perl implementation of the OpenPGP standard[1]. In addition to support for the standard itself, CryptOpenPGP claims compatibility with many other PGP implementations, both those that support the standard and those that preceded it.

CryptOpenPGP provides signing/verification, encryption/decryption, keyring management, and key-pair generation; in short it should provide you with everything you need to PGP-enable yourself. Alternatively it can be used as part of a larger system; for example, perhaps you have a web-form-to-email generator written in Perl, and you’d like to encrypt outgoing messages, because they contain sensitive information. CryptOpenPGP can be plugged into such a scenario, given your public key, and told to encrypt all messages; they will then be readable only by you.

This module currently supports RSA and DSA for digital signatures, and RSA and ElGamal for encryption/decryption. It supports the symmetric ciphers 3DES, Blowfish, IDEA, Twofish, and Rijndael AES. Rijndael is supported for key sizes of 128, 192, and 256 bits. CryptOpenPGP supports the digest algorithms MD5, SHA-1, and RIPE-MD/160. And it supports ZIP and Zlib compression.

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