Quantum key system and method

Re-keying based on pre-generated keys

Reception terminal, key management apparatus, and key...

Registry restore to original hardware

Restrictedly blindable certificates on secret keys

Rolling code security system

Secret communications system and channel control method

Secret information management apparatus and secret...

Secret key distribution method and secret key distribution...

Secure address proxying using multi-key cryptographically...

Secure approach to send data from one system to another

Secure communication between a hardware device and a computer

Secure data distribution

Secure distribution and protection of encryption key...

Secure distribution of private keys to multiple clients

Secure encryption key distribution

Secure ephemeral decryptability

Secure messaging system with return receipts

Secure packet radio network

Secure transmission system for a digital trunked radio system