Symmetricom S100 manual Osi, Pci, Pkcs, Pkix, Pstn

SyncServer S100

Online validation

A way of validating a key each time before it is used to verify that it has not expired or been revoked.

OSI

Operations System Interface

Out-of-band Authentication

When authentication is performed using relatively insecure methods, such as over the telephone, it is called out-of-band authentication. In-band authentication, which uses PKI, is preferred.

See also: In-band Authentication

PCI

Peripheral Component Interconnect, a local bus that supports high-speed connection with peripherals. It plugs into a PCI slot on the motherboard.

PKCS

Public Key Cryptography Standards. These standards allow compatibility among different cryptographic products.

PKI

Public Key Infrastructure. The PKI includes the Certificate Authority (CA), key directory, and management. Other components such as key recovery, and registration, may be included. The result is a form of cryptography in which each user has a Public Key and a Private Key. Messages are sent encrypted with the receiver's public key; the receiver decrypts them using the private key.

PKI Certificate

See Digital Certificates

PKIX

Extended Public Key Infrastructure, or PKI with additional features approved by the IETF.

Private Key

This is a secret key, known to only one of the parties involved in a transaction.

PSTN

Public Switched Telephone Network, a voice and data communications service for the general public that uses switched lines.

Public Key

Messages are sent encrypted with the recipient's public key, which is known to others; the recipient decrypts them using their private key.

130 S100 User Guide – Rev. D – June 2005