github.com/leonlxy/hyperledger@v1.0.0-alpha.0.20170427033203-34922035d248/bccsp/signer/signer_test.go (about)

     1  /*
     2  Copyright IBM Corp. 2016 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  package signer
    17  
    18  import (
    19  	"crypto/rand"
    20  	"os"
    21  	"testing"
    22  
    23  	"github.com/hyperledger/fabric/bccsp"
    24  	"github.com/hyperledger/fabric/bccsp/sw"
    25  )
    26  
    27  var (
    28  	swBCCSPInstance bccsp.BCCSP
    29  )
    30  
    31  func getBCCSP(t *testing.T) bccsp.BCCSP {
    32  	if swBCCSPInstance == nil {
    33  		var err error
    34  		swBCCSPInstance, err = sw.NewDefaultSecurityLevel(os.TempDir())
    35  		if err != nil {
    36  			t.Fatalf("Failed initializing key store [%s]", err)
    37  		}
    38  	}
    39  
    40  	return swBCCSPInstance
    41  }
    42  
    43  func TestInit(t *testing.T) {
    44  	csp := getBCCSP(t)
    45  
    46  	k, err := csp.KeyGen(&bccsp.ECDSAKeyGenOpts{Temporary: true})
    47  	if err != nil {
    48  		t.Fatalf("Failed generating ECDSA key [%s]", err)
    49  	}
    50  
    51  	signer := &CryptoSigner{}
    52  	err = signer.Init(csp, k)
    53  	if err != nil {
    54  		t.Fatalf("Failed initializing CryptoSigner [%s]", err)
    55  	}
    56  }
    57  
    58  func TestPublic(t *testing.T) {
    59  	csp := getBCCSP(t)
    60  
    61  	k, err := csp.KeyGen(&bccsp.ECDSAKeyGenOpts{Temporary: true})
    62  	if err != nil {
    63  		t.Fatalf("Failed generating ECDSA key [%s]", err)
    64  	}
    65  
    66  	signer := &CryptoSigner{}
    67  	err = signer.Init(csp, k)
    68  	if err != nil {
    69  		t.Fatalf("Failed initializing CryptoSigner [%s]", err)
    70  	}
    71  
    72  	pk := signer.Public()
    73  	if pk == nil {
    74  		t.Fatal("Failed getting PublicKey. Nil.")
    75  	}
    76  }
    77  
    78  func TestSign(t *testing.T) {
    79  	csp := getBCCSP(t)
    80  
    81  	k, err := csp.KeyGen(&bccsp.ECDSAKeyGenOpts{Temporary: true})
    82  	if err != nil {
    83  		t.Fatalf("Failed generating ECDSA key [%s]", err)
    84  	}
    85  
    86  	signer := &CryptoSigner{}
    87  	err = signer.Init(csp, k)
    88  	if err != nil {
    89  		t.Fatalf("Failed initializing CryptoSigner [%s]", err)
    90  	}
    91  
    92  	msg := []byte("Hello World")
    93  
    94  	digest, err := csp.Hash(msg, nil)
    95  	if err != nil {
    96  		t.Fatalf("Failed generating digest [%s]", err)
    97  	}
    98  
    99  	signature, err := signer.Sign(rand.Reader, digest, nil)
   100  	if err != nil {
   101  		t.Fatalf("Failed generating ECDSA signature [%s]", err)
   102  	}
   103  
   104  	valid, err := csp.Verify(k, signature, digest, nil)
   105  	if err != nil {
   106  		t.Fatalf("Failed verifying ECDSA signature [%s]", err)
   107  	}
   108  	if !valid {
   109  		t.Fatal("Failed verifying ECDSA signature. Signature not valid.")
   110  	}
   111  }