crypto/x509: cert from google fails to parse

[gopherbot]

by mo.dejong@dena.jp:

Before filing a bug, please check whether it has been fixed since the
latest release. Search the issue tracker and check that you're running the
latest version of Go:

> go version
go version go1.3 darwin/amd64

What steps reproduce the problem?
If possible, include a link to a program on play.golang.org.

1. http://play.golang.org/p/MM0F8aYf99
2. See error "asn1: structure error: tags don't match (16 vs {class:0 tag:13
length:45 isCompound:true}) {optional:false explicit:false application:false
defaultValue:<nil> tag:<nil> stringType:0 set:false omitEmpty:false}
certificate @2"

What happened?

Go fails to parse the google cert (it is in pem format)

What should have happened instead?

It should have parsed the cert.

Please provide any additional information below.

Note that this exact same cert works properly with the google provided Ruby Gem :
https://rubygems.org/gems/google-id-token

Attachments:

1. x509_test.go (1201 bytes)

[ianlancetaylor]

Comment 1:

Labels changed: added repo-main, release-go1.4.

[agl]

Comment 2:

You need to use encoding/pem to unwrap the base64 encoding first.

Status changed to Invalid.