Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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63/00
Network architectures or network communication protocols for network security
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H04L63/08
for authentication of entities
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H04L63/0853
using an additional device, e.g. smartcard, SIM or a different communication terminal
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