github.com/etherite/go-etherite@v0.0.0-20171015192807-5f4dd87b2f6e/crypto/signature_test.go (about)

     1  // Copyright 2017 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package crypto
    18  
    19  import (
    20  	"bytes"
    21  	"encoding/hex"
    22  	"testing"
    23  )
    24  
    25  func TestRecoverSanity(t *testing.T) {
    26  	msg, _ := hex.DecodeString("ce0677bb30baa8cf067c88db9811f4333d131bf8bcf12fe7065d211dce971008")
    27  	sig, _ := hex.DecodeString("90f27b8b488db00b00606796d2987f6a5f59ae62ea05effe84fef5b8b0e549984a691139ad57a3f0b906637673aa2f63d1f55cb1a69199d4009eea23ceaddc9301")
    28  	pubkey1, _ := hex.DecodeString("04e32df42865e97135acfb65f3bae71bdc86f4d49150ad6a440b6f15878109880a0a2b2667f7e725ceea70c673093bf67663e0312623c8e091b13cf2c0f11ef652")
    29  	pubkey2, err := Ecrecover(msg, sig)
    30  	if err != nil {
    31  		t.Fatalf("recover error: %s", err)
    32  	}
    33  	if !bytes.Equal(pubkey1, pubkey2) {
    34  		t.Errorf("pubkey mismatch: want: %x have: %x", pubkey1, pubkey2)
    35  	}
    36  }