Company Filing History:
Years Active: 2004-2010
Title: Ralf Schaffelhofer: Innovator in Key Establishment Methods
Introduction
Ralf Schaffelhofer is a notable inventor based in Darmstadt, Germany. He has made significant contributions to the field of cryptography, particularly in methods for establishing common keys among multiple subscribers. With a total of 3 patents, Schaffelhofer's work is recognized for its innovative approach to secure communications.
Latest Patents
One of Schaffelhofer's latest patents is a method for establishing a common key for a group of at least three subscribers. This method utilizes a publicly known mathematical number group and a higher order element of the group. In the first step, each subscriber sends a message corresponding to Ni: =gmod p to all other subscribers, where (zi) is a random number chosen from a specified set. The second step involves each subscriber selecting a transmission key for each other subscriber based on the received message. Finally, the common key is calculated for each subscriber, ensuring secure communication among the group.
Career Highlights
Ralf Schaffelhofer is currently employed at Deutsche Telekom AG, where he continues to develop innovative solutions in telecommunications. His expertise in cryptography and secure communications has positioned him as a valuable asset in his field.
Collaborations
Some of Schaffelhofer's coworkers include Tobias Martin and Joerg Schwenk, who contribute to the collaborative environment at Deutsche Telekom AG.
Conclusion
Ralf Schaffelhofer's contributions to the field of cryptography and secure communications are noteworthy. His innovative methods for establishing common keys among subscribers demonstrate his commitment to enhancing security in telecommunications.