verb (used with object)

  1. to encipher or encode.

verb (tr)

  1. to put (a message) into code
  2. to put (computer data) into a coded form
  3. to distort (a television or other signal) so that it cannot be understood without the appropriate decryption equipment

1975 in computer sense, from en- (1) + crypt (see crypto-). Related: Encrypted; encrypting; encryption.

  1. To alter information using a code or mathematical algorithm so as to be unintelligible to unauthorized readers.

The process of encoding a message so that it can be read only by the sender and the intended recipient. Encryption systems often use two keys, a public key, available to anyone, and a private key that allows only the recipient to decode the message. (See also cryptography.)

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