Understanding the TLS Handshake using Wireshark – EAP-TLS
Theory EAP-TLS (Extensible Authentication Protocol-Transport Layer Security) is an 802.1X authentication method widely used in enterprise wireless and wired networks […]
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Understanding the TLS Handshake using Wireshark – HTTPS
Wireshark is a powerful tool for understanding or troubleshooting TLS/SSL connections, as it allows you to capture, filter, and analyze […]
Using Wireshark to extract certificates from a TLS session
In the context of Public Key Infrastructure (PKI), a certificate is a digital document that binds a public key to […]
OpenSSL #4 – Useful Commands
1. Extract Certificates from PEM and PKCS12 Files Extract a certificate from a PEM file (e.g., .crt, .cer, .pem): Extract […]
OpenSSL # 3 – Creating A Certificate Authority
Create the root CA private key View Contents of the private key openssl rsa -in LABROOTCA-Private.key Generate the CSR Viewing […]
OpenSSL # 2 PKI Certificate Formats
In PKI, the main certificate file formats are: Each format supports different PKI use cases depending on system compatibility and […]
OpenSSL # 1 – A detailed view of certificates in the PKI
OpenSSL x509 options Save the certificate in text format Copy and paste the cert contents to the file OpenSSL can […]
WLAN – DMZ Logic
Switch6 C9800L-Internal ASAv-Internal SW100 WLAN_DMZ_SWITCH 9800DMZ ASAv-External Test ICMP and SSH connectivity between the internal and DMZ WLCs Allow ICMP […]
Public Key Infrastructure (PKI) Basics #12 – NDES/SCEP – Part 2 Cisco 9800 WLC Enrollment
Using the Network Device Enrollment Service (NDES) to issue certificates to Cisco devices involves configuring NDES and the router to […]
Public Key Infrastructure (PKI) Basics #11 – NDES/SCEP – Part 1
NDES (Network Device Enrollment Service) is a Microsoft service that facilitates automatically distributing certificates to network devices using the Simple […]