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Source file src/encoding/pem/example_test.go

Documentation: encoding/pem

  // Copyright 2016 The Go Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style
  // license that can be found in the LICENSE file.
  
  package pem_test
  
  import (
  	"crypto/x509"
  	"encoding/pem"
  	"fmt"
  	"log"
  )
  
  func ExampleDecode() {
  	var pubPEMData = []byte(`
  -----BEGIN PUBLIC KEY-----
  MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAlRuRnThUjU8/prwYxbty
  WPT9pURI3lbsKMiB6Fn/VHOKE13p4D8xgOCADpdRagdT6n4etr9atzDKUSvpMtR3
  CP5noNc97WiNCggBjVWhs7szEe8ugyqF23XwpHQ6uV1LKH50m92MbOWfCtjU9p/x
  qhNpQQ1AZhqNy5Gevap5k8XzRmjSldNAFZMY7Yv3Gi+nyCwGwpVtBUwhuLzgNFK/
  yDtw2WcWmUU7NuC8Q6MWvPebxVtCfVp/iQU6q60yyt6aGOBkhAX0LpKAEhKidixY
  nP9PNVBvxgu3XZ4P36gZV6+ummKdBVnc3NqwBLu5+CcdRdusmHPHd5pHf4/38Z3/
  6qU2a/fPvWzceVTEgZ47QjFMTCTmCwNt29cvi7zZeQzjtwQgn4ipN9NibRH/Ax/q
  TbIzHfrJ1xa2RteWSdFjwtxi9C20HUkjXSeI4YlzQMH0fPX6KCE7aVePTOnB69I/
  a9/q96DiXZajwlpq3wFctrs1oXqBp5DVrCIj8hU2wNgB7LtQ1mCtsYz//heai0K9
  PhE4X6hiE0YmeAZjR0uHl8M/5aW9xCoJ72+12kKpWAa0SFRWLy6FejNYCYpkupVJ
  yecLk/4L1W0l6jQQZnWErXZYe0PNFcmwGXy1Rep83kfBRNKRy5tvocalLlwXLdUk
  AIU+2GKjyT3iMuzZxxFxPFMCAwEAAQ==
  -----END PUBLIC KEY-----
  and some more`)
  
  	block, rest := pem.Decode(pubPEMData)
  	if block == nil || block.Type != "PUBLIC KEY" {
  		log.Fatal("failed to decode PEM block containing public key")
  	}
  
  	pub, err := x509.ParsePKIXPublicKey(block.Bytes)
  	if err != nil {
  		log.Fatal(err)
  	}
  
  	fmt.Printf("Got a %T, with remaining data: %q", pub, rest)
  	// Output: Got a *rsa.PublicKey, with remaining data: "and some more"
  }
  

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