security

meow

Non-repudiation

proving a user performed an action

crypto constraints

speed, size, key length, weak keys, longevity, predictability, reuse, computational overhead

OTP

One time pad

MD

Message digest

SHA

Secure Hash Algorithm

RIPeMD

RACE integrity primitive evaluation.

symmetric

same key for encrypting and decrypting

DES

Data encryption standard

3DES

Triple Data Encryption standard

AES

Advanced encryption system

RC

Rivest cipher

blowfish

operates on 64 blocks, key is 32-448 bits

asymmetric

2 keys, public and private.

RSA

Multiplies 2 large prime numbers

ECC

ecliptic curve cryptography

DSA

Digital signature algorithm

DH

Diffie hellman

downgrade attack

forces the system to fall back on less secure mode

collision attack

find 2 input strings of hash alg that produces the same hash

EFS

encrypting file system

fde

full disk encryption

fed

full encrypting drives

hsm

hardware security module

tpm

trusted platform module