Certificate Decoder
Inspect PEM-encoded X.509 certificates (-----BEGIN CERTIFICATE-----), compute SHA-256/SHA-1 fingerprints, and parse ASN.1 DER structures.
How to Use Certificate Decoder
- Paste a PEM-encoded X.509 certificate.
- Inspect DER byte length, SHA-256 & SHA-1 certificate thumbprints, readable ASCII strings (CN/O/SANs), and ASN.1 tag breakdown.
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