CRYPTOGRAPHIC ENGINE USING BASE CONVERSION, LOGIC OPERATIONS AND PRNG IN DATA ARRAYS TO INCREASE DISPERSION IN CIPHERTEXT - Patent 1179243

(19)

(11)

EP 1 179 243 A1

(12)

(43)	Date of publication:
	13.02.2002 Bulletin 2002/07

(21)	Application number: 99927081.2

(22)	Date of filing: 18.05.1999

(51)	International Patent Classification (IPC)⁷: H04L 9/28

(86)	International application number:
	PCT/US9910/967

(87)	International publication number:
	WO 0070/819 (23.11.2000 Gazette 2000/47)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(71)	Applicant: Satterfield, Richard C.
	Needham, MA 02192 (US)

(72)	Inventor:
	Satterfield, Richard C. Needham, MA 02192 (US)

(74)	Representative: Rupprecht, Kay, Dipl.-Ing. et al
	Meissner, Bolte & Partner Postfach 86 06 24 81633 München 81633 München (DE)

(54)	CRYPTOGRAPHIC ENGINE USING BASE CONVERSION, LOGIC OPERATIONS AND PRNG IN DATA ARRAYS TO INCREASE DISPERSION IN CIPHERTEXT