1 // Copyright 2016 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package pem_test 6 7 import ( 8 "crypto/x509" 9 "encoding/pem" 10 "fmt" 11 "log" 12 "os" 13 ) 14 15 func ExampleDecode() { 16 var pubPEMData = []byte(` 17 -----BEGIN PUBLIC KEY----- 18 MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAlRuRnThUjU8/prwYxbty 19 WPT9pURI3lbsKMiB6Fn/VHOKE13p4D8xgOCADpdRagdT6n4etr9atzDKUSvpMtR3 20 CP5noNc97WiNCggBjVWhs7szEe8ugyqF23XwpHQ6uV1LKH50m92MbOWfCtjU9p/x 21 qhNpQQ1AZhqNy5Gevap5k8XzRmjSldNAFZMY7Yv3Gi+nyCwGwpVtBUwhuLzgNFK/ 22 yDtw2WcWmUU7NuC8Q6MWvPebxVtCfVp/iQU6q60yyt6aGOBkhAX0LpKAEhKidixY 23 nP9PNVBvxgu3XZ4P36gZV6+ummKdBVnc3NqwBLu5+CcdRdusmHPHd5pHf4/38Z3/ 24 6qU2a/fPvWzceVTEgZ47QjFMTCTmCwNt29cvi7zZeQzjtwQgn4ipN9NibRH/Ax/q 25 TbIzHfrJ1xa2RteWSdFjwtxi9C20HUkjXSeI4YlzQMH0fPX6KCE7aVePTOnB69I/ 26 a9/q96DiXZajwlpq3wFctrs1oXqBp5DVrCIj8hU2wNgB7LtQ1mCtsYz//heai0K9 27 PhE4X6hiE0YmeAZjR0uHl8M/5aW9xCoJ72+12kKpWAa0SFRWLy6FejNYCYpkupVJ 28 yecLk/4L1W0l6jQQZnWErXZYe0PNFcmwGXy1Rep83kfBRNKRy5tvocalLlwXLdUk 29 AIU+2GKjyT3iMuzZxxFxPFMCAwEAAQ== 30 -----END PUBLIC KEY----- 31 and some more`) 32 33 block, rest := pem.Decode(pubPEMData) 34 if block == nil || block.Type != "PUBLIC KEY" { 35 log.Fatal("failed to decode PEM block containing public key") 36 } 37 38 pub, err := x509.ParsePKIXPublicKey(block.Bytes) 39 if err != nil { 40 log.Fatal(err) 41 } 42 43 fmt.Printf("Got a %T, with remaining data: %q", pub, rest) 44 // Output: Got a *rsa.PublicKey, with remaining data: "and some more" 45 } 46 47 func ExampleEncode() { 48 block := &pem.Block{ 49 Type: "MESSAGE", 50 Headers: map[string]string{ 51 "Animal": "Gopher", 52 }, 53 Bytes: []byte("test"), 54 } 55 56 if err := pem.Encode(os.Stdout, block); err != nil { 57 log.Fatal(err) 58 } 59 // Output: 60 // -----BEGIN MESSAGE----- 61 // Animal: Gopher 62 // 63 // dGVzdA== 64 // -----END MESSAGE----- 65 } 66
