Which statement is&#

Which statement is true about a certificate authority？（）

A、An entity responsible for registering the private key encryption used in a PKI
B、An agency responsible for granting and revoking public-private key pairs
C、A trusted third party responsible for signing the public keys of entities in a PKIbased system
D、A trusted third party responsible for signing the private keys of entities in a PKIbased system

正确答案:C

答案解析:有

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