同时，基于身份加密的公钥密码系统中也存在着一些问题，如身份认证、私钥分发以及密钥托管等。

However, there are some problems in IBE such as identity authentication, private key distribution, key escrow and so on.

youdao

同时，基于身份加密的公钥密码系统中也存在着一些问题，如身份认证、私钥分发以及密钥托管等。

However, there are some problems in IBE such as identity authentication, private key distribution, key escrow and so on.

youdao