Encryption software is used to convert texts, audio files or images into a string of characters that cannot be read or interpreted by outsiders with the aid of certain encryption processes (cryptosystems). To make the original data visible again, the other party needs the so-called key. Different keys may be used for encryption and decryption. At this point you will find an overview of encryption software. These are programs that help you to encrypt your e-mail traffic, to sign documents with your signature or to put a copy and content protection over a document.