authentication
5 posts tagged authentication.
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From Password-in-the-Pipe to Cloud-Issued Session: Twenty-Six Years of RDP Authentication
How five generations of Windows RDP authentication -- classic delegation, NLA via CredSSP, Restricted Admin, Remote Credential Guard, and PRT-over-RDP -- retreated from the 1998 design that gave attackers the keys to every target.
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Fuzzy Extractors and the One Inequality That Explains Why Windows Hello Doesn't Use One
Fuzzy extractors turn noisy biometrics into stable cryptographic keys. A single 2004 inequality explains why Windows Hello deliberately does not use one.
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Kerberos in Windows: The Other Half of NTLMless
After NTLM, Kerberos becomes the load-bearing authentication protocol for Windows. Eight years of attacks, the December 2025 Beyond-RC4 cadence, and the H2 2026 IAKerb / Local KDC broad enable.
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WebAuthn and Passkeys on Windows: From CTAP to the Credential Provider Model
The know/have/are taxonomy collapses against modern phishing kits. Passkeys, WebAuthn Level 3, CTAP 2.x, and Windows 11 24H2 third-party providers score against the criteria that actually matter -- and recovery is the load-bearing column.
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No Secrets to Steal: How Windows Hello Eliminated the Shared Secret
How Windows Hello replaced passwords with TPM-backed biometrics, survived a decade of attacks, and helped make passwordless the default.