Key Algorithms Flashcards
1
Q
DES
A
Block cipher
56 key length
Symmetric
2
Q
3DES
A
Block
168 bits key
Symmetric
3
Q
AES
Rijndael
A
Block
128, 192 or 256 bit
Symmetric
Used in WPA2
4
Q
Blowfish
A
Block
32-448 bit key
Symmetric
5
Q
RC4
A
Stream
40-2048 bits
Symmetric
Used in wpa
6
Q
Two fish
A
Block
128,192 or 256
Symmetric
7
Q
RSA
A
Asymmetric
Has Authentication
8
Q
Ecc
Elliptical curve cryptography
A
Faster and cheaper than RSA
Can have smaller keys than RSA
9
Q
Diffie Hellman
DH
A
Key exchange protocol
Take a number add a common number then give that new number across the wire. The other person then can add their number to this number and boom we have the same key
A+B=C
send C
A+D=E
Send E
E+B=X
C+D=X
Aka E+B=X=C+D
