Corresponding to public key cryptographic algorithm, it can save energy consumption because the receiver can aggregate cryptograph directly instead of obtaining explicit terms.

相对公钥密码算法，接收方可以在不知道明文的情况下，直接对密文执行融合，节省了因解密带来的能量消耗。

youdao

Public key cryptography, combined with the traditional symmetric cryptograph and the message digest technology, can provide confidentiality, integrity and proof of origin.

公钥密码技术结合传统的对称密码技术及信息摘要技术，可提供信息的保密性、完整性和信源确认，是多种安全应用的基础。

youdao