[go-nuts] Re: x509.ParseCertificate return err

[Wei Tang]

But in Java, the code below can parse the pem content, is there some 
difference in x509 implemention between golang and java?

import java.io.ByteArrayInputStream;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;


public class SoterServerDemo {
    public static void main(String[] args) {
        
        try {
            
            CertificateFactory factory = 
CertificateFactory.getInstance("X.509");
            X509Certificate askCertificate = (X509Certificate) 
factory.generateCertificate(new ByteArrayInputStream("content of pem 
file".getBytes()));
            
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}



在 2019年7月24日星期三 UTC+8下午5:30:41，Wei Tang写道：
>
> Hi, I have a problem with x509.ParseCertificate.
>
> My code is:
> package main
>
> import (
> "crypto/x509"
> "encoding/pem"
> "fmt"
> )
>
> func main() {
> certPEM := `
> -----BEGIN CERTIFICATE-----
> MIID7jCCAtigAwIBAgIBATALBgkqhkiG9w0BAQswHTEbMBkGA1UEAxMSSHVhd2Vp
> IEtleVN0b3JlICAgMB4XDTE5MDcyNDA4NTQ0NFoXDTI5MDcyNDA4NTQ0NFowGjEY
> MBYGA1UEAxMPQSBLZXltYXN0ZXIgS2V5MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A
> MIIBCgKCAQEA8WS+DnC9JzGytDPpe3/GVY4xQx0bsPVP1Drf0n3eD+wq6U91QnjX
> vhyRXtguDBu8OM5Qc5h8wFIOAUTD4+U/QGLQ3pZN+DXVmwlSJjbx8yMjuiUwInhG
> uJ+xzhuEsNFCdxdyaNPmGhUycu09olL2/mcgDQFxusfr5jnnhU9VFv3/x1Y+7mVh
> kICFnCE3YQ4ufHOHroQIE0kxnfJF+DkgK1tkdIMHEvX5rJvaqtd0M7RY/PRrE0dE
> bYSlAlSAVqdjfLb0LF8tRTcjnIh4lg5NhqCWeAkGw8egUaNW1vFX6SeXrW6uJv2N
> OeHxi9VFG7ymaOqB4URS0wGQ6dzoYsx/iwIDAQABo4IBPjCCATowCwYDVR0PBAQD
> AgAAMAgGA1UdHwQBADCB9QYKKwYBBAHWeQIBEQSB5jCB4wIBAgoBAQIBAwoBAQR3
> eyJjcHVfaWQiOiJIVUFXRUlfSFdITUFfNmYwNzk3ZTQtMWFjNS00YjM3LWEyZTgt
> YzY2ZjQ2MTM0YjhlLTIyMzE5ZjcxIiwiY291bnRlciI6MTMsInVpZCI6IjEwNDE3
> IiwicnNhX3Bzc19zYWx0bGVuIjozMn0EADASv4N3AgUAv4U9CAIGAWwjMJ1KMEah
> CTEHAgUA/wEAAaIDAgEBowQCAggApQUxAwIBBKYFMQMCAQO/gUgFAgMBAAG/hT4D
> AgEAv4VBBQIDAV+Qv4VCBQIDAxSxMCkGCSsGAQQBj1seAgEBAAQZMBcCAQCiAwEB
> Ab+BSAswCaEHAwUABoAAgDALBgkqhkiG9w0BAQsDggEBAFZRjVpDqujJrwaZqycw
> VgrM/J1b2VcVKUPJ39eJXs2S/ur7yUlgSxRcpOufa3IF0XekOUyHTNIroWUz/xLb
> X6pv32PCMeavI/6ldl/zEJyy11PKX8ZrVfE05WiWUIJ6BwmDX+RtNjJSJ/xmwfDu
> dn0CAx5apWsCMYpcGXQ2g8DRGQpYVdJS/aOTlDHGdSdSesx0TbGL39gjfdDb851L
> spVFtcdoxw5nb0obwRItPBF+gHIh3xsYGGDN/EKSNN9YMja4MzgjTeLjNXjs1pXO
> f4Fm3OiOfSFnTJuJk/rKQ0TiW+p3EvuZ+tRT+iffJvhdvDAIp7I3pJjaoZw4xwHH
> Tr8=
> -----END CERTIFICATE-----`
> block, _ := pem.Decode([]byte(certPEM))
> if block == nil {
> panic("failed to parse certificate PEM")
> }
> cert, err := x509.ParseCertificate(block.Bytes)
> if err != nil {
> panic("failed to parse certificate: " + err.Error())
> }
> fmt.Println(cert)
> }
>
>
> but x509.ParseCertificate return err:
> panic: failed to parse certificate: asn1: syntax error: truncated tag or 
> length
>
>
> What's wrong? 
>
> Please help.
>
>
>

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