a digital certificate is more than just a cryptography key; it is an online credential 数字证书不仅仅是一个加密密钥,它还是一个在线凭证。
in a nutshell, in a pki digital signature scheme, each party has two cryptography keys : the public key is available to anyone and the private key is kept secret to oneself )概括地说,在pki数字签名模式中,每一方都有两个密码术密钥:公钥,任何人都可以使用它,而私钥,是保密的,只有某个人本身可以使用。