What is Windows NT LAN Manager (NTLM)?

What does NTLM stand for?

Windows NT LAN Manager (NTLM) is a protection Protocol suite for Microsoft Windows NT four.Zero. NTLM cHanged Windows LAN Manager (LANMAN). NTLM is used for down-degree patron and Server compatibility as much as Windows 2000.

NTLM become changed with the aid of Microsoft Kerberos.

What Does Windows NT LAN Manager Mean?

NTLM authenticates customers and servers via a undertaking-response technique composed of three messages, as follows:

• Negotiation: Advertises competencies
• Challenge: Establishes idEntity
• Authentication: Authenticates the Client or server

NTLM Makes use of one or Greater server-stored hashed Passwords for authentication. Each password price is a 16-byte LM hash or NT hash. Microsoft Does now not recommend NTLM for Modern Packages, because of weak Encryption.