equal_test.go

Documentation: crypto/rsa

		 1  // Copyright 2020 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 rsa_test
		 6  
		 7  import (
		 8  	"crypto"
		 9  	"crypto/rand"
		10  	"crypto/rsa"
		11  	"crypto/x509"
		12  	"testing"
		13  )
		14  
		15  func TestEqual(t *testing.T) {
		16  	private, _ := rsa.GenerateKey(rand.Reader, 512)
		17  	public := &private.PublicKey
		18  
		19  	if !public.Equal(public) {
		20  		t.Errorf("public key is not equal to itself: %v", public)
		21  	}
		22  	if !public.Equal(crypto.Signer(private).Public().(*rsa.PublicKey)) {
		23  		t.Errorf("private.Public() is not Equal to public: %q", public)
		24  	}
		25  	if !private.Equal(private) {
		26  		t.Errorf("private key is not equal to itself: %v", private)
		27  	}
		28  
		29  	enc, err := x509.MarshalPKCS8PrivateKey(private)
		30  	if err != nil {
		31  		t.Fatal(err)
		32  	}
		33  	decoded, err := x509.ParsePKCS8PrivateKey(enc)
		34  	if err != nil {
		35  		t.Fatal(err)
		36  	}
		37  	if !public.Equal(decoded.(crypto.Signer).Public()) {
		38  		t.Errorf("public key is not equal to itself after decoding: %v", public)
		39  	}
		40  	if !private.Equal(decoded) {
		41  		t.Errorf("private key is not equal to itself after decoding: %v", private)
		42  	}
		43  
		44  	other, _ := rsa.GenerateKey(rand.Reader, 512)
		45  	if public.Equal(other.Public()) {
		46  		t.Errorf("different public keys are Equal")
		47  	}
		48  	if private.Equal(other) {
		49  		t.Errorf("different private keys are Equal")
		50  	}
		51  }
		52
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