PKI (Public Key Infrastructure) is a framework for securely deploying public-key cryptography, in which a Certificate Authority (CA) issues digital certificates that vouch for the authenticity of public keys. A digital certificate is a trusted third-party attestation that a given public key belongs to its claimed owner and serves as the cornerstone of PKI. It underpins core internet security mechanisms such as TLS encrypted communications and digital signatures.

Past questions testing this term · 2 questions

• 2016h28h #57情報セキュリティにおけるPKIに必要不可欠な構成要素はどれか。
• 2015h27a #83PKIにおいて，電子証明書が正当性を証明しているものはどれか。