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Security Stack

final IT sercuriyt

QuestionAnswer
Cryptograpy Code and Cipher systems; Aware of a secret message transmission
Steganography Hide a message in message; Unaware of tranmission
Crypt analysis The practice of breaking codes
Ciphers An Algorithm for performing encryption and decrytion
Encrytion convert plaintext to ciphertext.
Decrytion convert ciphertext to plaintext
SIGINT Intelligence from the interception of signals
COMINT Communications Intelligence
ELINT Electronic Intelligence
DES DATA Encryption Standard
Data Encryption Standard 56key; 64 bit block; symmetric; one key encrytion
DES Ciphers Block: unvarying; fixed length; Stream: variable individual digits
ECB Electronic Codebook: two block cipher; Split in plain text blocks; encrypt seperatly
CBC Cipher Block Chaining; two block cipher XORed blocks
OFB output feedback; stream cipher; transforms a block cipher into synchronus
CFB cipher feedback;stream cipher; block cipher > self sync stream
3DES Triple data encryption; 112 or 168 bits: 64b block: symetric
AES Advanced Encryption Standard; 128,192,256 key length, symmetric, Rinjindael
RSA Rivest, Shamir, and Adleman; Asymmetrical key; private de-crypt text; public encrypts text
DH Diffie Hellman; key exchange shared secret key;
KPA Known-Plain Text Attacks; attacker has sample of both plaintext and encypted
CPA Chosen Plaintext Attack; attacker determines plaintext = cipherattacks
COA Ciphertext-Only Attack; only the encypted message is possessed
CCA Chosen-Ciphertext Attack;
Hash takes an arbitrary block of data and returns a fixed-size bit string; message digest or simply digest.
Md5 hash 128 bit digests, message-digest algorithm
SHA-1 160 bit digests, secure hash algorithm
ECC Elliptic Curve Cryptography: Asymmetrical more secure than RSA
CA Registration; initialization; certification; update; recovery; expiration; revocation
feistel cipher Iterated Block Ciphers; special class
Meet-in-the-middle attack MITM is a generic attack possession of pairs of plain texts and corresponding cipher texts
Symmetric Encryption Algorithms encryption/decryption keys are the same: DES; 3DES; AES
Asymmetric Encryption Algorithms encryption/decryption keys different Digital cert: DH; RSA; Elliptical
PKI public key encryption: key pair to encrypt and decrypt
PGP pretty good privacy, authentication for data communication
DSA Digital Signature Algorithm
Anatomy of an attack probe; penetrate; persist; propagate; paralyze
DAC Discretionary Access Control
MAC Manditory Access Control
RBAC Role Based Access Control
RSBAC Rule Set Based Access Control
NIDS Network Intrusion Detection System
IdentityGuard Two factor Auth, login with password and challenge
Hardening Reducing available vectors of attack
DEP Data Execution Prevention
Steganalysis Detect hidden information using a tool that Detects pixels changes
Mis-configuration A Secure AccessPoint(wpa wpa2) not properly configured, so it's insecure
Mis-Association Mistakenly associate your AP with another Accesspoint
Wardriving Roaming an area looking for insecure access point
Malicious Association A fake AccessPoint blocks the original and forces you to use thiers
Rogue AP An AccessPoint that is used without authorization. overpowering signal forces you onto it
Airborne Virus Worm infects computers over radio waves.
Digest Digest access authentication is one of the Agreed-upon methods a web server can use to negotiate credentials
stream cipher mode is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher digit stream
Created by: Tranith