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crypto/x509: better documentation for ParsePKIXPublicKey #14355

dndx opened this issue Feb 17, 2016 · 2 comments

crypto/x509: better documentation for ParsePKIXPublicKey #14355

dndx opened this issue Feb 17, 2016 · 2 comments


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@dndx dndx commented Feb 17, 2016

In the latest Golang release (1.5.3), the documentation for x509.ParsePKIXPublicKey() says the function takes in a []byte of DER encoded public key and returns pub interface{}. It is not obvious exactly what pub is or how to use it unless digging inside the source code and trace to the function parsePublicKey().

Suggested changes:

  • Mention explicitly what kind of public key input we support (RSA, DSA, ECDSA)
  • Mention the type of pub in those three cases respectively
  • Add a short example on how to use switch statement along with type assertions to obtain the correct type of public key.

I will be happy to make those improvements to the document and submit for code review if no objections from the project maintainers.

@ianlancetaylor ianlancetaylor changed the title doc: crypto/x509: Better documentation for ParsePKIXPublicKey() crypto/x509: better documentation for ParsePKIXPublicKey Feb 17, 2016
@ianlancetaylor ianlancetaylor added this to the Go1.7 milestone Feb 17, 2016
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@ianlancetaylor ianlancetaylor commented Feb 17, 2016

Sure, send a CL. Thanks.

An example should probably go in example_test.go.

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@gopherbot gopherbot commented Feb 20, 2016

CL mentions this issue.

@gopherbot gopherbot closed this in c8ae2e8 Feb 26, 2016
@golang golang locked and limited conversation to collaborators Feb 28, 2017
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