I need a encryption software

[McGonagall]

:helpful:Can you tell me the powerful one?

[Kurtnoise]

describe what you want to do exactly...

[Blue_MiSfit]

Truecrypt is probably a safe answer :)

It's _amazing_

~MiSfit

[fibbingbear]

As Blue Misfit said, Truecrypt is awesome. However, I find it better for encrypting entire directories/partitions. For single file encryption, GPG is great, especially it's --symmetric option.