'''AstmetricAsymmetric key cryptography''', also known as '''public key cryptography''', is a typeform of [[cryptography]] wherinin therewhich one key is used to encrypt a message and another is used to decrypt it, or one key foris encodingused to sign a message and another keyis forused decodingto verify it. The key used to decrypt or Itsign is alsokept calledprivate and cannot easily be derived from the [[public key, cryptographywhich is used to encrypt or verify. Asymmetric key ciphers include [[RSA]], [[DSS]], and [[ElGamal]].
