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1. #SOOKASA AUTHENICATE EVERY WINDOWS START PROFESSIONAL#
2. #SOOKASA AUTHENICATE EVERY WINDOWS START WINDOWS#

Maintains the computer's secure channel (not to be confused with Schannel) to a domain controller. The services that the Net Logon service performs are as follows:

#SOOKASA AUTHENICATE EVERY WINDOWS START WINDOWS#

The default set of providers can change with each version of the Windows operating system, and custom providers can be written. The LSA contains the Negotiate function, which selects either the NTLM or Kerberos protocol after determining which protocol is to be successful.Ī set of providers that can individually invoke one or more authentication protocols. The LSA Server service, which both enforces security policies and acts as the security package manager for the LSA. The multiple authentication providers that form the foundation of the authentication process. Most processes initiated by the user run in user mode by using Secur32.dll whereas processes initiated at startup, such as services, run in kernel mode by using Ksecdd.sys.įor more information about user mode and kernel mode, see Applications and User Mode or Services and Kernel Mode in this topic. The Winlogon service initiates the logon process for Windows operating systems by passing the credentials collected by user action on the secure desktop (Logon UI) to the Local Security Authority (LSA) through Secur32.dll.Īpplication or service logons that do not require interactive logon. Winlogon.exe is the executable file responsible for managing secure user interactions. The following table describes each component that manages credentials in the authentication process at the point of logon.Īuthentication components for all systems Component The following diagram shows the components that are required and the paths that credentials take through the system to authenticate the user or process for a successful logon. A copy of the SAM database is also stored here, although it is write-protected.

Stored information includes policy settings, default security values, and account information, such as cached logon credentials. Local security information is stored in the registry under HKEY_LOCAL_MACHINE\SECURITY.

Credentials are collected through user input on the logon user interface or programmatically via the application programming interface (API) to be presented to the authenticating target. The credentials used in authentication are digital documents that associate the user's identity to some form of proof of authenticity, such as a certificate, a password, or a PIN.īy default, Windows credentials are validated against the Security Accounts Manager (SAM) database on the local computer, or against Active Directory on a domain-joined computer, through the Winlogon service. In the case of a domain-joined computer, the authenticating target is the domain controller. Windows credentials management is the process by which the operating system receives the credentials from the service or user and secures that information for future presentation to the authenticating target.

#SOOKASA AUTHENICATE EVERY WINDOWS START PROFESSIONAL#

This reference topic for the IT professional describes how Windows authentication processes credentials.

Applies to: Windows Server 2022, Windows Server 2019, Windows Server 2016