github.com/adnan-c/fabric_e2e_couchdb@v0.6.1-preview.0.20170228180935-21ce6b23cf91/orderer/mocks/util/util.go (about)

     1  /*
     2  Copyright IBM Corp. 2017 All Rights Reserved.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8                   http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package util
    18  
    19  import (
    20  	"crypto/rand"
    21  	"crypto/rsa"
    22  	"crypto/x509"
    23  	"crypto/x509/pkix"
    24  	"encoding/pem"
    25  	"math/big"
    26  )
    27  
    28  // GenerateMockPublicPrivateKeyPairPEM returns public/private key pair encoded as PEM strings
    29  func GenerateMockPublicPrivateKeyPairPEM(isCA bool) (string, string, error) {
    30  	privateKey, err := rsa.GenerateKey(rand.Reader, 1024)
    31  	if err != nil {
    32  		return "", "", err
    33  	}
    34  	privateKeyPEM := string(pem.EncodeToMemory(
    35  		&pem.Block{
    36  			Type:  "RSA PRIVATE KEY",
    37  			Bytes: x509.MarshalPKCS1PrivateKey(privateKey),
    38  		},
    39  	))
    40  
    41  	template := x509.Certificate{
    42  		SerialNumber: big.NewInt(100),
    43  		Subject: pkix.Name{
    44  			Organization: []string{"Hyperledger Fabric"},
    45  		},
    46  	}
    47  	if isCA {
    48  		template.IsCA = true
    49  		template.KeyUsage |= x509.KeyUsageCertSign
    50  	}
    51  
    52  	publicKeyCert, err := x509.CreateCertificate(rand.Reader, &template, &template, privateKey.Public(), privateKey)
    53  	if err != nil {
    54  		return "", "", err
    55  	}
    56  
    57  	publicKeyCertPEM := string(pem.EncodeToMemory(
    58  		&pem.Block{
    59  			Type:  "CERTIFICATE",
    60  			Bytes: publicKeyCert,
    61  		},
    62  	))
    63  
    64  	return publicKeyCertPEM, privateKeyPEM, nil
    65  }