You could use openssl enc -aes-256-cbc. That's probably the best compliance with the notion of "standard" that you could find.

Be careful not to pass the encryption key as an environment variable, since the environment variables can be visible in ps in most Unix-like operating systems. And do double check that you have a usable /dev/urandom.

In reply to Re^3: line by line Encryption fun with Crypt::CBC and Rijndael? File Ownership issues? by quester
in thread line by line Encryption fun with Crypt::CBC and Rijndael? File Ownership issues? by hmbscully

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