File Encryption

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

Replies are listed 'Best First'.
Re: File Encryption by duckyd (Hermit) on Dec 15, 2008 at 17:37 UTC
By "replace the enciphered file with the original" I assume you mean decrypt? There are many modules in the Crypt:: namespace on CPAN, one of which should be suitable for your needs. The perldoc for Crypt::Blowfish provides a very straightforward example of encrypting and decrypting: `use Crypt::Blowfish; my $cipher = new Crypt::Blowfish $key; my $ciphertext = $cipher->encrypt($plaintext); my $plaintext = $cipher->decrypt($ciphertext);` [download]	[reply] [d/l]
Re^2: File Encryption by Anonymous Monk on Dec 15, 2008 at 19:09 UTC
Many thanks...	[reply]
Re: File Encryption by Joost (Canon) on Dec 15, 2008 at 19:22 UTC
If you want to have access to multiple encryption algorithms, you may want to give Mcrypt a try - it's a perl extension to interface with the libmcrypt library, which gives C level access to many good encryption schemes (so it's especially nice if you want to have encryption in a mixed Perl/C/XS system) "What should it profit a man, if he should win a flame war, yet lose his cool?"	[reply]
Re: File Encryption by kennethk (Abbot) on Dec 15, 2008 at 17:24 UTC
Umm, do you mean "encrypt a file and replace the original (plain text) file with the enciphered version" or do you want to encrypt and then decrypt the file?	[reply]