Windows authentication digest

This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Please rate your experience Yes No. In addition, some protocols are combined into authentication packages such as Negotiate and the Credential Security Support Provider.

These protocols and packages enable authentication of users, computers, and services; the authentication process, in turn, enables authorized users and services to access resources in a secure manner. Windows Authentication Concepts.

Windows Authentication Architecture. Security Support Provider Interface Architecture. Credentials Processes in Windows Authentication. Windows Authentication is used to verify that the information comes from a trusted source, whether from a person or computer object, such as another computer.

Windows provides many different methods to achieve this goal as described below. For additional resources, see Kerberos Authentication Overview. The Secure Channel Schannel provider authentication protocol suite provides these protocols.

All Schannel protocols use a client and server model. In addition to authentication, the NTLM protocol optionally provides for session security--specifically message integrity and confidentiality through signing and sealing functions in NTLM. Leverage multifactor authentication Smart card support Biometric support Smart cards are a tamper-resistant and portable way to provide security solutions for tasks such as client authentication, logging on to domains, code signing, and securing e-mail.

Biometrics relies on measuring an unchanging physical characteristic of a person to uniquely identify that person. Fingerprints are one of the most frequently used biometric characteristics, with millions of fingerprint biometric devices that are embedded in personal computers and peripherals.

Windows will show the Figure 1. Enter the temporarily created Windows account "test" as in Figure 1. Windows won't let the website open until you enter the correct user name and password. Digest Authentication Digest Authentication, like Basic Authentication, requires the user to provide account information using a login dialog box that is displayed by the browser. Unlike Basic Authentication, the user name and password are not transmitted in clear text. Instead, a cryptographically secure hash with this information is sent.

We can implement this authentication by simply enabling this option in IIS as in the following screenshot. Windows is unable to store MD5 hashes of passwords for local accounts SAM database thus the limitation of Digest Authentication is that in IIS, it only functions when the virtual directory is being authenticated or controlled by a Windows Active Directory Domain Controller. Digest Authentication protects users and applications from a variety of malicious attacks by incorporating a piece of information about the request as input to the hashing algorithm.

Enabling and disabling digest authentication can also be done programmatically. We can enable this authentication using the AppCmd command as in the following:. Next Recommended Reading. Net Core 6. Create A. Understanding Thread Starvation in. NET Core Applications. Exploring Numeric Streams In Java. Improve this answer. MarredCheese Aardvark Aardvark 8, 7 7 gold badges 44 44 silver badges 63 63 bronze badges.

Thanks for your response, after doing some additional reading it appears that both basic and digest authentication use HTTP headers to pass information, while windows authentication with Kerberos uses UDP to pass information over a different port. That gives me some intuition into why basic and digest would be more fully supported. I am still doing some hunting on how the client exchanges NTLM.

Headers are passed back and forth in all these schemes. The UDP stuff is between the server and a domain controller. While Digest seems to be better than Basic auth because the password can not be extracted, it has the disadvantage that the password must be stored in cleartext or something similar on the server so that the digest can be verified.

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