Public key certificate

wikipedia:Public key certificate

keytool -printcert -file certificate.pem

Activities

• How to check certification expiration date from command line: openssl s_client -servername ... | ... openssl x509 -noout -dates
• Download public certificate from a website: openssl s_client -connect

Related terms

• X.509 format for Public key certificate
• openssl: openssl req
• keytool (Java)
• Public key
• macOS: Keychain Access app
• Kubernetes cert-manager
• Amazon Certificate Manager (ACM)
• certificates.k8s.io
• RFC 5280

See also

• Certificate: .pem, .ppk, .pfx, .p12, .cer, .crt, openssl pkcs12, .csr, .pub, PFX, PKCS, PKCS, RFC 5280
• Public-key cryptography, Public key certificate, BLS digital signature
• Certificate, CSR (PKCS10), /etc/letsencrypt/csr/, openssl req, X.509, [.pem, .cer, .csr], Kubernetes CertificateSigningRequest
• Certificate, certificate extensions (.pem, .pfx, .p8, .p12), CSR, .csr, root certificate, public certificate, Kubernetes certificate authentication
• TLS, TLS 1.3, mTLS: OpenSSL, LibreSSL, BoringSSL, WolfSSL, X.509, .pem, SNI, CT, OCSP, Mbed TLS, ALPN, your connection is not private, SSL Certificate Checker, Wildcard certificate, JA3 fingerprint, sslcan, TLS inspection, Opportunistic TLS (StartTLS), tools