The creation of birefringence in a liquid that is not otherwise birefringent, by subjecting the liquid to an electric field.
Note 1: The degree of birefringence, which is manifested as a difference in refractive indices for light of orthogonal linear polarizations, one of which is parallel to the induced optical axis, is directly proportional to the square of the applied… (Read More →)

1. Information (usually a sequence of random or pseudorandom binary digits) used initially to set up and periodically change the operations performed in crypto-equipment for the purpose of encrypting or decrypting electronic data, for determining electronic counter-countermeasures patterns (e.g., frequency hopping or spread spectrum ), or for producing other key.
Note: "Key" has replaced the terms "variable," "key(ing) variable," and… (Read More →)

1. A key establishment protocol whose secret key is a function of information contributed by two or more participants, so that no party can predetermine the value of the key. [After X9.42]
2. A method for negotiating a key value on-line without transferring the key, even in an encrypted form, e.g., the Diffie-Hellman technique. [After X.509]

The assurance of the legitimate participants in a key agreement that no other entity possesses the shared-secret key. [After X9.42]

An assemblage of two keys that are considered logically to be one key, in that one key alone cannot be manipulated. [After X9.65]

One of two or more parameters that have the format of a cryptographic key that is added modulo-1 with one or more like parameters to form a cryptographic key. [After X9.8]

The assurance of the rightful participants in a key-establishment protocol that the intended recipient(s) of the shared key actually possess the shared key. [After X9.42]

[A] COMSEC facility generating and distributing key in electrical form. [INFOSEC-99]

1. A key that is used exclusively for encrypting and decrypting keys. [After X9.28]
2. Key that encrypts or decrypts other key for transmission or storage. [INFOSEC-99]

In public-key cryptography, two key encrypting keys used together to encrypt other keys. [After X9.28]