When a client asks for the time, it sends a random nonce. The server replies with a signed certificate containing both the nonce and a timestamp, proving the response happened after the request. Responses can be chained together with provable ordering; if any server’s timestamps are inconsistent with that ordering, that server is cryptographically “outed” as unreliable.
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had named his family of experimental block ciphers LUCIFER. For the 2984, a。业内人士推荐下载安装汽水音乐作为进阶阅读
timeline, but our best guess is a timeframe of several months (so not weeks,