Lesson 8 CIW ICT Voc

anti-virus software

• Software that scans disks and programs for known viruses and eliminates them.

• An encryption method in which two keys (a private key and a public key) are used to encrypt and decrypt a message. Also known as public-key encryption.

• The process of verifying the identity of a user who logs on to a system, or the integrity of transmitted data

asymmetric encryption

• An encryption method in which two keys (a private key and a public key) are used to encrypt and decrypt a message. Also known as public-key encryption

• Abbreviation for malicious software. Malware is software designed to harm computer systems.

• A security barrier that controls the flow of information between the Internet and a private network. A firewall prevents outsiders from accessing an enterprise's internal network, which accesses the Internet indirectly through a proxy server

authentication

• The process of verifying the identity of a user who logs on to a system, or the integrity of transmitted data

• A number generated by an algorithm from a text string. Also known as a message diges

• A password-protected, encrypted data file containing message encryption, user identification and message text. Used to authenticate a program or a sender's public key, or to initiate SSL sessions. Must be signed by a certificate authority (CA) to be valid.

decryption

• The process of converting encrypted data back to its original form.

• A variable value, such as a numeric code, that uses an algorithm to encrypt and decrypt data. Some applications encrypt and decrypt with the same key, whereas other applications use a pair of keys

• A security barrier that controls the flow of information between the Internet and a private network. A firewall prevents outsiders from accessing an enterprise's internal network, which accesses the Internet indirectly through a proxy server

digital certificate

• A password-protected, encrypted data file containing message encryption, user identification and message text. Used to authenticate a program or a sender's public key, or to initiate SSL sessions. Must be signed by a certificate authority (CA) to be valid.

• An encryption method in which two keys (a private key and a public key) are used to encrypt and decrypt a message. Also known as public-key encryption.

• The unethical practice of registering domain names very similar to those of high-volume sites in hopes of receiving traffic from users seeking the high-volume site who mistakenly enter an incorrect URL in their browsers

digital signature

• An electronic stamp added to a message that uniquely identifies its source and verifies its contents at the time of the signature.

• An encryption method in which the same key is used to encrypt and decrypt a message. Also known as private-key encryption

• A malicious program that replicates itself on computer systems, usually through executable software, and causes irreparable system damage.

encryption

• A security technique designed to prevent access to information by converting it into a scrambled (unreadable) form of text.

• The process of converting encrypted data back to its original form

• The security principle of providing proof that a transaction occurred between identified parties. Repudiation occurs when one party in a transaction denies that the transaction took place

firewall

• A security barrier that controls the flow of information between the Internet and a private network. A firewall prevents outsiders from accessing an enterprise's internal network, which accesses the Internet indirectly through a proxy server

• A subset of Internet Protocol that is most often used to determine whether a computer can communicate with the rest of the network.

• An application that installs hidden services on systems. Illicit servers consist of "client" code and "server" code that enable the attacker to monitor and control the operation of the computer infected with the server code.

hash

• A number generated by an algorithm from a text string. Also known as a message digest.

• The security principle of providing proof that a transaction occurred between identified parties. Repudiation occurs when one party in a transaction denies that the transaction took place.

• A variable value, such as a numeric code, that uses an algorithm to encrypt and decrypt data. Some applications encrypt and decrypt with the same key, whereas other applications use a pair of keys.

hash encryption

• An encryption method in which hashes are used to verify the integrity of transmitted messages. Also known as one-way encryption

• The process of converting encrypted data back to its original form

• An encryption method in which two keys (a private key and a public key) are used to encrypt and decrypt a message. Also known as public-key encryption