# 基于SSL/TLS的ECHO程序  

用一个完整的安全版ECHO程序来演示如何让Socket通信也支持HTTPS。  


## 注意  

SSL/TLS协议只能运行于TCP之上，不能在UDP上工作，且SSL/TLS位于TCP与应用层协议之间，因此所有基于TCP的应用层协议都可以透明地使用SSL/TLS为自己提供安全保障。所谓透明地使用是指既不需要了解细节，也不需要专门处理该层的包，比如封装、解封等。

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github.com/programming-book-practice/ssl-tls-echo

ssl-tls-echo

(Experimental) An ambiguous license classifier was found.

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Ambiguous License Classifier

Source files are encoded using a non-standard text encoding.

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Bad text encoding

Package version is not a valid semantic version (semver).

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Bad semver

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Bidirectional unicode control characters

This package has multiple bin scripts with the same name. This can cause non-deterministic behavior when installing or could be a sign of a supply chain attack.

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Bin script confusion

Semantic versions published out of chronological order.

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

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Compromised SSH key

(Experimental) Copyleft license information was found.

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Copyleft License

Contains a Critical Common Vulnerability and Exposure (CVE).

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Title

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The maintainer of the package marked it as deprecated. This could indicate that a single version should not be used, or that the package is no longer maintained and any new vulnerabilities will not be fixed.

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Package name is similar to other popular packages and may not be the package you want.

What is a typosquat?

Possible typosquat attack

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What is dynamic require?

Dynamic require

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Package has a dependency with a floating version range. This can cause issues if the dependency publishes a new major version.

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HTTP dependency

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Install scripts

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Long strings

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Major refactor

This package is malware. We have asked the package registry to remove it.

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Known malware

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Manifest confusion

Contains a medium severity Common Vulnerability and Exposure (CVE).

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Medium CVE

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Low CVE

This package contains minified code. This may be harmless in some cases where minified code is included in packaged libraries, however packages on npm should not minify code.

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(Experimental) A package's licensing information has fine-grained problems.

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The package was published by an npm account that no longer exists.

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Modified license exception

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Network access

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Package does not specify a list of contributors or an author in package.json.

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No repository

Package does not have any tests. This is a strong signal of a poorly maintained or low quality package.

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No tests

Package is not semver >=1. This means it is not stable and does not support ^ ranges.

github.com/programming-book-practice/ssl-tls-echo

基于SSL/TLS的ECHO程序

注意

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