- 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.
- Elliptic Curve
Cryptography algorithms used by protocols:
Following use a combination of encryption and hashing algorithms.
SSL/TLS, SMIME, PPTP, HTTPS, L2TP, IPSEC, SSH