Data encryption/decryption method, and device

Details Data encryption/decryption method, and device Data encryption/decryption method, and device

2011-08-16

2011-08-16

Barron, Jr., Gilberto (Department: 2432)

Cryptography

Communication system using cryptography

Symmetric key cryptography

C380S284000, C380S274000, C713S168000

Reexamination Certificate

active

08000476

ABSTRACT:
A method of enciphering data which is applicable to cipher-transmission of digital information data, in which the HD-SDI signal DHS is subjected to enciphering process using common key data DEY which is common to encipherment and decipherment to produce enciphered HD-SDI signal DHSE, the common key data DEY are subjected to enciphering process using open key data DOY to produce enciphered common key data DXY, and the enciphered HD-SDI signal DHSE accompanied with the enciphered common key data DXY are send to be transmitted, so that such a fear that the common key data DEY are eavesdropped on the transmission thereof can be effectively reduced.

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