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ITEC CH 12
ITEC CH 12
16
Computer Science
Undergraduate 4
04/14/2013

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Term
Asymmetric Encryption
Definition
encryption that uses two mathematically related keys
Term
Symmetric Encryption
Definition
encryption that uses a single key to encrypt and decrypt a message
Term
Encrypting
Definition
process of changing plaintext into ciphertext
Term
Digital Certificates
Definition
technology used to associate a users identity to a public key, in which the user's public key is digitally signed by a trusted third party
Term
Certificate Repository (CR)
Definition
publicly accessible centralized directory that contains digital certificates that can be used to view the status of a digital certificate
Term
General duties of an RA
Definition
Receive, authenticate, and process certificate revocation requests
Identify and authenticate subscribers
Term
Primary function of an RA
Definition
Verify identity of an individual
Term
Class 1: personal digital certificates
Definition
Issued by an RA directly to individuals
Frequently used to secure e-mail transmissions
Typically only require user’s name and e-mail address to receive
Term
Class 2: server digital certificates
Definition
Issued from a Web server to a client
Ensure authenticity of the Web server
Ensure authenticity of the cryptographic connection to the Web server
Term
Public Key Infrastructure
Definition
framework for all of the entities involved in digital certificates for digital certificate management
Term
Public-Key Cryptographic Standards (PKCS)
Definition
Numbered set of PKI standards defined by the RSA Corporation
Widely accepted in industry
Based on the RSA public-key algorithm
Term
Certificate Policy (CP)
Definition
Published set of rules that govern operation of a PKI
Provides recommended baseline security requirements for use and operation of CA, RA, and other PKI components
Term
Certificate Practice Statement (CPS)
Definition
Describes in detail how the CA uses and manages certificates
Term
Secure Shell (SSH)
Definition
Encrypted alternative to Telnet protocol used to access remote computers
Linux/UNIX-based command interface and protocol
Suite of three utilities: slogin, ssh, and scp
Client and server ends of connection are authenticated using a digital certificate
Passwords are encrypted
Can be used as a tool for secure network backups
Term
IP Security (IPsec)
Definition
Set of protocols developed to support secure exchange of packets
Operates at a low level in the OSI model
Term
IP Security
Definition
Supports two encryption modes: transport and tunnel
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