6-7 Flashcards
is not a specific algorithm but rather a system. it offers digital signatures, asymetric encryption and asymmetric encryption. it uses its own certificate formats
PGP Pretty Good Privacy
this is a function that takes a variable-sized input and returns a fixed size string
expressed mathematically as h=H(m)
hashing
hashes are stored in you pc __________, and it can not unhash your password
Security accounts manager
128 bit hash that is specified by RFC 1321. its not collision-resistant
MD5
most widely used hash algorithm, all versions considered secure and collision-free
SHA Secure Hash Algorithim
resembles MD5. 160 hash function. designed by the national security agency to be part of DSA
SHA1
this is actually 2 similar hash functions with different block sizes known as SHA 256 and SHA 512.
SHA2
SHA-256 uses ___bytes( 256 bit) words
32
SHA 512 uses ____ bytes (512 bits) words
64
this is the latest version of SHA. adopted in October 2012
SHA3
160 bit hash algorithim developed by Hans Dobbertin and antoon Bosselaers, and bart preneel. has 128, 256, 320.
RIPEMED
developed in europe as part of project RIPE
RIPEMED 160
Cryptographic hash agorithim. can produce hashes of a different length. has lengths 128, 160, 192, 224, 256. it allows the user to specify the number of rounds
Haval
