A user has a pair of keys: public key and private key.

用户拥有一对密钥：公钥和私钥。

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The public key and private key for any given user aren't mathematically related.

任何给定用户的公钥和私钥在数学上是不能相关的。

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But how to solve the possibility of the public key and private key holder denying the certainty of documentation is a problem, and electronic signature technology can not deal with it itself.

但是如何解决公共密钥的确定性以及私人密钥持有者否认签发文件的可能性问题，则是电子签名技术本身无法解决的问题。

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It would use public key cryptography to generate and store thousands of public and private key pairs, one for every app or gadget the user needs to unlock.

FORBES: Could A Crypto-Computer In Your Pocket Replace All Passwords?

One interesting question, especially for New Yorkers: Will Secretary of State Clinton be with Obama at all the key meetings, public and private, or will she be hard at work at her desk in Washington?

CENTERFORSECURITYPOLICY: Obama's big UN adventure

But the responses will likely all relate back to three key models: Public cloud, private cloud and hybrid cloud.

FORBES: CenturyLinkVoice: Public, Private, Hybrid: Why It Takes All Types To Answer 'What is Cloud?'