代码签名证书有什么特别之处？ [英] What is special about a code signing certificate?
问题描述
它与我可以通过makecert生成的其他证书还是可以从某个权威机构购买的证书不同？
Is it different from any other certificate I can generate via makecert or buy from some authority?
推荐答案
如 Mile L 和 Boot to head 扩展密钥用法决定了密钥的用途。
As mentioned by Mile L and Boot to the Head the Extended Key Usage is what determines the purpose that the key can be used for.
大多数商业证书颁发机构（Verisign等人）出于单一目的或尽可能少地颁发证书。
Most commercial certificate authorities (Verisign et al) issue certificates for single purposes, or for as few as possible.
他们使用这种缩小的范围来划分出不同的目的证书的市场，然后相应地定价。
They use this narrowing of the puropse to carve out different markets for the certificates and then price them accordingly.
在大多数情况下，您会看到它们为Windows程序集/ Java / Office / Adobe Air等出售不同的对象签名证书。
You see them selling different Object Signing certs for Windows Assemblies / Java / Office / Adobe Air etc when (in most cases) the resulting certificate is the same.
例如 Comodo代码签名证书可以对Java小程序，WebStart应用程序进行签名，Firefox扩展程序甚至Windows程序集。
For example the Comodo codesigning cert issued here can sign Java applets, WebStart applications, Firefox extensions and even Windows assemblies.
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