accounts, crypto: move keystore to package accounts

The account management API was originally implemented as a thin layer
around crypto.KeyStore, on the grounds that several kinds of key stores
would be implemented later on. It turns out that this won't happen so
KeyStore is a superflous abstraction.

In this commit crypto.KeyStore and everything related to it moves to
package accounts and is unexported.

1 files changed, 234 insertions, 0 deletions

diff --git a/accounts/key_store_test.go b/accounts/key_store_test.go
new file mode 100644
index 000000000..62ace3720
--- /dev/null
+++ b/accounts/key_store_test.go
@@ -0,0 +1,234 @@
+// Copyright 2014 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package accounts
+
+import (
+	"encoding/hex"
+	"fmt"
+	"reflect"
+	"strings"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/crypto/randentropy"
+)
+
+func TestKeyStorePlain(t *testing.T) {
+	ks := newKeyStorePlain(common.DefaultDataDir())
+	pass := "" // not used but required by API
+	k1, err := ks.GenerateNewKey(randentropy.Reader, pass)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	k2 := new(Key)
+	k2, err = ks.GetKey(k1.Address, pass)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if !reflect.DeepEqual(k1.Address, k2.Address) {
+		t.Fatal(err)
+	}
+
+	if !reflect.DeepEqual(k1.PrivateKey, k2.PrivateKey) {
+		t.Fatal(err)
+	}
+
+	err = ks.DeleteKey(k2.Address, pass)
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestKeyStorePassphrase(t *testing.T) {
+	ks := newKeyStorePassphrase(common.DefaultDataDir(), LightScryptN, LightScryptP)
+	pass := "foo"
+	k1, err := ks.GenerateNewKey(randentropy.Reader, pass)
+	if err != nil {
+		t.Fatal(err)
+	}
+	k2 := new(Key)
+	k2, err = ks.GetKey(k1.Address, pass)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !reflect.DeepEqual(k1.Address, k2.Address) {
+		t.Fatal(err)
+	}
+
+	if !reflect.DeepEqual(k1.PrivateKey, k2.PrivateKey) {
+		t.Fatal(err)
+	}
+
+	err = ks.DeleteKey(k2.Address, pass) // also to clean up created files
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestKeyStorePassphraseDecryptionFail(t *testing.T) {
+	ks := newKeyStorePassphrase(common.DefaultDataDir(), LightScryptN, LightScryptP)
+	pass := "foo"
+	k1, err := ks.GenerateNewKey(randentropy.Reader, pass)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = ks.GetKey(k1.Address, "bar") // wrong passphrase
+	if err == nil {
+		t.Fatal(err)
+	}
+
+	err = ks.DeleteKey(k1.Address, "bar") // wrong passphrase
+	if err == nil {
+		t.Fatal(err)
+	}
+
+	err = ks.DeleteKey(k1.Address, pass) // to clean up
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestImportPreSaleKey(t *testing.T) {
+	// file content of a presale key file generated with:
+	// python pyethsaletool.py genwallet
+	// with password "foo"
+	fileContent := "{\"encseed\": \"26d87f5f2bf9835f9a47eefae571bc09f9107bb13d54ff12a4ec095d01f83897494cf34f7bed2ed34126ecba9db7b62de56c9d7cd136520a0427bfb11b8954ba7ac39b90d4650d3448e31185affcd74226a68f1e94b1108e6e0a4a91cdd83eba\", \"ethaddr\": \"d4584b5f6229b7be90727b0fc8c6b91bb427821f\", \"email\": \"gustav.simonsson@gmail.com\", \"btcaddr\": \"1EVknXyFC68kKNLkh6YnKzW41svSRoaAcx\"}"
+	ks := newKeyStorePassphrase(common.DefaultDataDir(), LightScryptN, LightScryptP)
+	pass := "foo"
+	_, err := importPreSaleKey(ks, []byte(fileContent), pass)
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
+// Test and utils for the key store tests in the Ethereum JSON tests;
+// testdataKeyStoreTests/basic_tests.json
+type KeyStoreTestV3 struct {
+	Json     encryptedKeyJSONV3
+	Password string
+	Priv     string
+}
+
+type KeyStoreTestV1 struct {
+	Json     encryptedKeyJSONV1
+	Password string
+	Priv     string
+}
+
+func TestV3_PBKDF2_1(t *testing.T) {
+	tests := loadKeyStoreTestV3("testdata/v3_test_vector.json", t)
+	testDecryptV3(tests["wikipage_test_vector_pbkdf2"], t)
+}
+
+func TestV3_PBKDF2_2(t *testing.T) {
+	tests := loadKeyStoreTestV3("../tests/files/KeyStoreTests/basic_tests.json", t)
+	testDecryptV3(tests["test1"], t)
+}
+
+func TestV3_PBKDF2_3(t *testing.T) {
+	tests := loadKeyStoreTestV3("../tests/files/KeyStoreTests/basic_tests.json", t)
+	testDecryptV3(tests["python_generated_test_with_odd_iv"], t)
+}
+
+func TestV3_PBKDF2_4(t *testing.T) {
+	tests := loadKeyStoreTestV3("../tests/files/KeyStoreTests/basic_tests.json", t)
+	testDecryptV3(tests["evilnonce"], t)
+}
+
+func TestV3_Scrypt_1(t *testing.T) {
+	tests := loadKeyStoreTestV3("testdata/v3_test_vector.json", t)
+	testDecryptV3(tests["wikipage_test_vector_scrypt"], t)
+}
+
+func TestV3_Scrypt_2(t *testing.T) {
+	tests := loadKeyStoreTestV3("../tests/files/KeyStoreTests/basic_tests.json", t)
+	testDecryptV3(tests["test2"], t)
+}
+
+func TestV1_1(t *testing.T) {
+	tests := loadKeyStoreTestV1("testdata/v1_test_vector.json", t)
+	testDecryptV1(tests["test1"], t)
+}
+
+func TestV1_2(t *testing.T) {
+	ks := newKeyStorePassphrase("testdata/v1", LightScryptN, LightScryptP)
+	addr := common.HexToAddress("cb61d5a9c4896fb9658090b597ef0e7be6f7b67e")
+	k, err := ks.GetKey(addr, "g")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if k.Address != addr {
+		t.Fatal(fmt.Errorf("Unexpected address: %v, expected %v", k.Address, addr))
+	}
+
+	privHex := hex.EncodeToString(crypto.FromECDSA(k.PrivateKey))
+	expectedHex := "d1b1178d3529626a1a93e073f65028370d14c7eb0936eb42abef05db6f37ad7d"
+	if privHex != expectedHex {
+		t.Fatal(fmt.Errorf("Unexpected privkey: %v, expected %v", privHex, expectedHex))
+	}
+}
+
+func testDecryptV3(test KeyStoreTestV3, t *testing.T) {
+	privBytes, _, err := decryptKeyV3(&test.Json, test.Password)
+	if err != nil {
+		t.Fatal(err)
+	}
+	privHex := hex.EncodeToString(privBytes)
+	if test.Priv != privHex {
+		t.Fatal(fmt.Errorf("Decrypted bytes not equal to test, expected %v have %v", test.Priv, privHex))
+	}
+}
+
+func testDecryptV1(test KeyStoreTestV1, t *testing.T) {
+	privBytes, _, err := decryptKeyV1(&test.Json, test.Password)
+	if err != nil {
+		t.Fatal(err)
+	}
+	privHex := hex.EncodeToString(privBytes)
+	if test.Priv != privHex {
+		t.Fatal(fmt.Errorf("Decrypted bytes not equal to test, expected %v have %v", test.Priv, privHex))
+	}
+}
+
+func loadKeyStoreTestV3(file string, t *testing.T) map[string]KeyStoreTestV3 {
+	tests := make(map[string]KeyStoreTestV3)
+	err := common.LoadJSON(file, &tests)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return tests
+}
+
+func loadKeyStoreTestV1(file string, t *testing.T) map[string]KeyStoreTestV1 {
+	tests := make(map[string]KeyStoreTestV1)
+	err := common.LoadJSON(file, &tests)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return tests
+}
+
+func TestKeyForDirectICAP(t *testing.T) {
+	key := NewKeyForDirectICAP(randentropy.Reader)
+	if !strings.HasPrefix(key.Address.Hex(), "0x00") {
+		t.Errorf("Expected first address byte to be zero, have: %s", key.Address.Hex())
+	}
+}