>>14197429
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G06Q 20/00 Payment architectures, schemes or protocols (apparatus for performing or posting payment transactions G07F 7/08, G07F 19/00; electronic cash registers G07G 1/12) [2012.01
G06Q 20/36 •
•
using electronic wallets or electronic money safes [2012.01
G06F 3/00 Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements [2006.01
G06F 3/01 •
Input arrangements or combined input and output arrangements for interaction between user and computer (G06F 3/16 takes precedence) [2006.01
H04L 9/00 Arrangements for secret or secure communication [2006.01
H04L 9/06 •
the encryption apparatus using shift registers or memories for blockwise coding, e.g. D.E.S. systems [2006.01
H04L 9/08 •
Key distribution [2006.01