You are trying to read a certificate with a function intended for
reading a public key.
Use x509.ParseCertificates instead.
Janne Snabb
sn...@epipe.com
On 2017-03-06 16:39, 0x7bc77a wrote:
> Hi,
>
> I would like to load the public key from a DER encoded certificate
>
> Here is my code
>
> func ExampleParsePKIXPublicKey() {
> raw, err := ioutil.ReadFile("/Path/To/DER/Encoded/Certificate")
>
> if err != nil {
> panic("failed to read certificate" + err.Error())
> }
>
> pub, err := x509.ParsePKIXPublicKey(raw)
>
> if err != nil {
> panic("failed to parse DER encoded public key: " + err.Error())
> }
>
> switch pub := pub.(type) {
> case *rsa.PublicKey:
> fmt.Println("Pub is of type RSA:", pub)
> case *dsa.PublicKey:
> fmt.Println("Pub is of type DSA:", pub)
> case *ecdsa.PublicKey:
> fmt.Println("Pub is of type ECDSA:", pub)
> default:
> panic("unknown type fo public key")
> }
> }
>
> then I get errors like below:
>
> panic: failed to parse DER encoded public key: asn1: structure error:
> tags don't match (6 vs {class:2 tag:0 length:3 isCompound:true})
> {optional:false explicit:false application:f
> alse defaultValue:<nil> tag:<nil> stringType:0 timeType:0 set:false
> omitEmpty:false} ObjectIdentifier @2
>
> any ideas to solve this problem?
>
> thanks in advance!
>
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