Keys are used to send messages that are obscured by the public key and can only be (*) read by the holder of the private key.  
One version of this process uses the concept of public and private keys, where a public key is considered common knowledge and a private key is known only to the individual; that is the RSA type. Keys are used to send messages that are obscured by the public key and can only be (*) read by the holder of the private key.  The algorithms used for its are typically referred to as ciphers and some notable ones include Cesaer and Vernam. Notable early machines that could perform this task include the Enigma Machine and PURPLE. For 10 points name this process where information is rendered indecipherable to others.
One version of this process uses the concept of public and private keys, where a public key is considered common knowledge and a private key is known only to the individual; that is the RSA type.
{Encryption} [accept word forms like Encrypting] [SM]