US PATENT SUBCLASS 380 / 28
.~ By particular algorithmic function encoding

Current as of: June, 1999
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380 /   HD   CRYPTOGRAPHY

9  DF  ELECTRIC SIGNAL MODIFICATION (E.G., SCRAMBLING) {18}
28.~ By particular algorithmic function encoding {2}
29  DF  .~.~> NBS/DES algorithm
30  DF  .~.~> Public key

DEFINITION

Classification: 380/28

By particular algorithmic function encoding:

(under subclass 9) Subject matter wherein an algorithmic operation is performed upon a signal, in order to encrypt the information signal.

(1) Note. The processed signal may be the message signal.

SEE OR SEARCH CLASS

364, Electrical Computers and Data Processing Systems, appropriate subclasses for a computer which performs a mathematical transformation.