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从 RFC-6101 看 openssl (1) | 遐想的空中宫殿 #22

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skyleaworlder opened this issue Jan 6, 2021 · 2 comments
Open

从 RFC-6101 看 openssl (1) | 遐想的空中宫殿 #22

skyleaworlder opened this issue Jan 6, 2021 · 2 comments

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@skyleaworlder
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https://skyleaworlder.github.io/2021/01/05/openssl-replay-1/

期末,怎么办一个学期就要过去了,信安原理自然是有期末考试的。 我是觉得难,第一是因为自己没基础。一个学期过去了自己还是什么都不知道,除了感慨自己太懒散之外,也没有什么好说的。埋怨也埋怨不了别人。 期末考试对我来说是困难的,极其困难的。下面是往届信安原理考试的一道题目: 分析 SSL 防重放攻击的安全机制,并比较分析其与 ipsec 反重放机制的主要异同点。 正常人第一感觉想来肯定是,哦,也不是

@DarkKowalski
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可以参考下讲 TLS 1.3 的 RFC8446 section-8.2,里面有这么一段话

An alternative form of anti-replay is to record a unique value
derived from the ClientHello (generally either the random value or
the PSK binder) and reject duplicates.

大概老师也分不清 SSL 和 TLS 的 114514 个版本吧

@skyleaworlder
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可以参考下讲 TLS 1.3 的 RFC8446 section-8.2,里面有这么一段话

An alternative form of anti-replay is to record a unique value
derived from the ClientHello (generally either the random value or
the PSK binder) and reject duplicates.

大概老师也分不清 SSL 和 TLS 的 114514 个版本吧

啊……谢谢大佬。是这样啊,吐了。

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