Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2007-05-22
2007-05-22
Moise, Emmanuel L. (Department: 2137)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S150000, C713S155000, C705S060000
Reexamination Certificate
active
10193596
ABSTRACT:
In a method for real-time registration having high protection against tampering by means of a security module, an encrypted initial security value for translog file analyzers is made available an unencrypted real-time message is secured by appending an authentication code that the security module generates by inserting a current security value into an algorithm for authentication code for each real-time message that is likewise employed by each translog file analyzer. The first security value is formed according to a first mathematical function known to the translog file analyzer that allows a derivation of following security values. The authentication code is formed according to a second mathematical function known to the translog analyzer that is applied to the real-time message and to the current security value and that serves for the verification of the real-time message. A system for real-time registration has at least one client system and at least one translog analyzer for monitoring the authenticity of a translog file that had been generated by the security module.
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Bleumer Gerrit
Heinrich Glemens
Francotyp Postalia AG & Co, KG
Moise Emmanuel L.
Pyzocha Michael
Schiff & Hardin LLP
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