🔐 EAP-TLS Certificate Validator
⚡ Output
ℹ️ About EAP-TLS Certificate Validator
The EAP-TLS Certificate Validator is a specialized forensic tool for network engineers troubleshooting 802.1X wireless and wired authentication.
A common cause of EAP-TLS failure is a malformed certificate that is missing required Extended Key Usages (EKU) or has an invalid Subject Alternative Name (SAN). This tool parses the raw PEM certificate and explicitly checks for the necessary attributes (such as Client Authentication (1.3.6.1.5.5.7.3.2)) required by standard RADIUS servers like Microsoft NPS, Cisco ISE, and FreeRADIUS.
📖 How to use EAP-TLS Certificate Validator
- 1. Export the client or server certificate in Base64-encoded PEM format.
- 2. Paste the entire contents, including the <code>-----BEGIN CERTIFICATE-----</code> and <code>-----END CERTIFICATE-----</code> lines.
- 3. Click 'Run Tool' to verify its 802.1X readiness.
❓ Frequently Asked Questions
What is an EKU?
Extended Key Usage (EKU) is a certificate extension that indicates the purposes for which the certified public key may be used. EAP-TLS strictly requires 'Client Authentication' for the connecting device and 'Server Authentication' for the RADIUS server.
🔗 Related RADIUS & AAA Tools
NPS DTS-to-CSV Converter
Convert Microsoft NPS logs (DTS XML format) into a structured CSV for Excel analysis.
RADIUS & NPS Reason Code Interpreter
Map numeric Microsoft NPS and RADIUS reason codes (e.g., 16, 66) to human-readable fixes.
RADIUS VSA Builder
Construct custom Vendor-Specific Attributes (VSAs) for RADIUS packet crafting.
Cisco Type 7 Password Decrypt / Decode / Cracker
Decrypt, Decode, or Crack weak Cisco Type 7 passwords from device configurations.