Lec 16- Cryptography algorithms and protocols

Hashing Algorithms

• MD5 , 128 bit
• SHA, ( SHA-1 (SHA 160 bit), SHA-2(224, 256, 384, 512))
• LanMan, replaced with NTLM
• NTLM, (MS Chap) weaker, replaced by keberos.

Encryption Algorithms

• DES/3DES
• RSA
• PGP
• Elliptic Curve
• AES/AES256

Cryptography algorithms used by protocols:

Following use a combination of encryption and hashing algorithms.

SSL/TLS, SMIME, PPTP, HTTPS, L2TP, IPSEC, SSH