Similar to the LM hash format NTLM hash also does not perform a salt routine. NTLM hash also supports both uppercase and lowercase letters. ![]() NTLM hash is considered to be more secure than the conventional LM hash because it uses MD4 algorithm to convert plaintext into hashed format. ![]() Enabling the SYSKEY allows you to encrypt the password hash values with a key. So, Microsoft introduced the SYSKEY (System Key) function in Windows NT 4.0 to provide SAM database security against offline software cracking. Offline attacks on the SAM database are possible because SAM database is stored in the memory. SAM stores passwords in its database using LAN Manager (LN) hash or New Technology LAN Manager ( NTLM) hash format which is determined by the set of policies being implemented. ![]() If the credentials are correct the user logs on and if they are incorrect an error message will be generated and user will be asked to re-enter the credentials. SAM holds the user and account information in its database and when a user enters credentials, they are authenticated against the SAM database. The main aim behind SAM is to make our system more secure and reliable by protecting credentials in case of a data breach.Ĭonfiguring SAM gives users the ability to authenticate themselves to the local machine if an account has been created for them in SAM. The Security Accounts Manager (SAM) is a database file in Windows operating system that comprises of usernames and passwords.
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