H
ELECTRICITY
H
ELECTRICITY
H04
ELECTRIC COMMUNICATION TECHNIQUE
H04
ELECTRIC COMMUNICATION TECHNIQUE
H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9/00
Cryptographic mechanisms or cryptographic; arrangements for secret or secure communications; Network security protocols
9/00
Cryptographic mechanisms or cryptographic; arrangements for secret or secure communications; Network security protocols
H04L9/006
involving public key infrastructure [PKI] trust models
H04L9/006
involving public key infrastructure [PKI] trust models