由于数字签名是建立在公用密钥密码术基础上的，因此计算一个数字签名所花的时间往往要比计算一个mac长得多。

Because a digital signature is based on public key cryptography, it generally takes much more time to compute a digital signature than a MAC.

youdao

由于数字签名是建立在公用密钥密码术基础上的，因此计算一个数字签名所花的时间往往要比计算一个mac长得多。

Because a digital signature is based on public key cryptography, it generally takes much more time to compute a digital signature than a MAC.

youdao