75 lines
1.7 KiB
Go
75 lines
1.7 KiB
Go
/*-
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* Copyright 2014 Square Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package jose
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import (
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"crypto/x509"
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"encoding/pem"
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"fmt"
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)
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// LoadPublicKey loads a public key from PEM/DER-encoded data.
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func LoadPublicKey(data []byte) (interface{}, error) {
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input := data
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block, _ := pem.Decode(data)
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if block != nil {
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input = block.Bytes
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}
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// Try to load SubjectPublicKeyInfo
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pub, err0 := x509.ParsePKIXPublicKey(input)
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if err0 == nil {
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return pub, nil
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}
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cert, err1 := x509.ParseCertificate(input)
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if err1 == nil {
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return cert.PublicKey, nil
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}
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return nil, fmt.Errorf("square/go-jose: parse error, got '%s' and '%s'", err0, err1)
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}
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// LoadPrivateKey loads a private key from PEM/DER-encoded data.
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func LoadPrivateKey(data []byte) (interface{}, error) {
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input := data
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block, _ := pem.Decode(data)
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if block != nil {
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input = block.Bytes
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}
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var priv interface{}
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priv, err0 := x509.ParsePKCS1PrivateKey(input)
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if err0 == nil {
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return priv, nil
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}
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priv, err1 := x509.ParsePKCS8PrivateKey(input)
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if err1 == nil {
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return priv, nil
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}
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priv, err2 := x509.ParseECPrivateKey(input)
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if err2 == nil {
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return priv, nil
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}
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return nil, fmt.Errorf("square/go-jose: parse error, got '%s', '%s' and '%s'", err0, err1, err2)
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}
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