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Features
- X509 viewer tool for Windows and Linux Mono . Displays Offline and Online certificates with the associated CRL and/or OCSP data. Displays ASN.1 content.
- Offline : drag/drop certificate files to show content. All files formats are accepted. Also works with PEM encoded certificate from clipboard.
- Online : paste the URL to download and show content . TLS (https, wss), DTLS, OPC UA, QUIC, SMTP StartTLS, SSH (RFC 6187) protocols are supported.
- Click on the CRL link to download and view it. Allows to save it to a file.
- Click on the OCSP link to check the revocation status. Shows if signature is delegated.
- Certificate validation done with the Windows/Linux Store and with a private PKI.
- True validation of Signatures in the Signed Certificate Timestamp List
- Can be used to extract a certificate from a running OPC/TLS/DTLS/QUIC/SMTP/SSH server with one click.
- Can be used as a format converter tool : .pfx, .der (binary), .crt/.pem (base64) to .der or .crt/.pem
- Can verify the correspondence between the private key file (plain and encrypted) and the current certificate. A simple drop of the .pem, .der, .pvk file with the key is enough.
- The perfect tool for teaching and verification of X509 standard and it's usages on OPC/TLS/DTLS/QUIC/SMTP/SSH secure servers.
- ... and a standalone tool dedicated to OPC UA Endpoints & Certificates
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SecurityLicense
MIT LicenseFollow X509 GUI Certificate Viewer
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