feat: Waku v2 bridge

Issue #12610
2023-11-12 13:29:38 +01:00
parent 56e7bd01ca
commit 6d31343205
6716 changed files with 1982502 additions and 5891 deletions
--- a/vendor/github.com/status-im/status-go/eth-node/keystore/keystore.go
+++ b/vendor/github.com/status-im/status-go/eth-node/keystore/keystore.go
@@ -0,0 +1,15 @@
+// Imported from github.com/ethereum/go-ethereum/accounts/keystore/keystore.go
+
+package keystore
+
+import (
+	"errors"
+)
+
+const (
+	version = 3
+)
+
+var (
+	ErrDecrypt = errors.New("could not decrypt key with given password")
+)
--- a/vendor/github.com/status-im/status-go/eth-node/keystore/passphrase.go
+++ b/vendor/github.com/status-im/status-go/eth-node/keystore/passphrase.go
@@ -0,0 +1,353 @@
+// Imported from github.com/ethereum/go-ethereum/accounts/keystore/passphrase.go
+// and github.com/ethereum/go-ethereum/accounts/keystore/presale.go
+
+package keystore
+
+import (
+	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+
+	"github.com/google/uuid"
+	"golang.org/x/crypto/pbkdf2"
+	"golang.org/x/crypto/scrypt"
+
+	"github.com/status-im/status-go/eth-node/crypto"
+	"github.com/status-im/status-go/eth-node/types"
+	"github.com/status-im/status-go/extkeys"
+)
+
+const (
+	keyHeaderKDF = "scrypt"
+)
+
+type EncryptedKeyJSONV3 struct {
+	Address         string     `json:"address"`
+	Crypto          CryptoJSON `json:"crypto"`
+	Id              string     `json:"id"`
+	Version         int        `json:"version"`
+	ExtendedKey     CryptoJSON `json:"extendedkey"`
+	SubAccountIndex uint32     `json:"subaccountindex"`
+}
+
+type encryptedKeyJSONV1 struct {
+	Address string     `json:"address"`
+	Crypto  CryptoJSON `json:"crypto"`
+	Id      string     `json:"id"`
+	Version string     `json:"version"`
+}
+
+type CryptoJSON struct {
+	Cipher       string                 `json:"cipher"`
+	CipherText   string                 `json:"ciphertext"`
+	CipherParams cipherparamsJSON       `json:"cipherparams"`
+	KDF          string                 `json:"kdf"`
+	KDFParams    map[string]interface{} `json:"kdfparams"`
+	MAC          string                 `json:"mac"`
+}
+
+type cipherparamsJSON struct {
+	IV string `json:"iv"`
+}
+
+// DecryptKey decrypts a key from a json blob, returning the private key itself.
+func DecryptKey(keyjson []byte, auth string) (*types.Key, error) {
+	// Parse the json into a simple map to fetch the key version
+	m := make(map[string]interface{})
+	if err := json.Unmarshal(keyjson, &m); err != nil {
+		return nil, err
+	}
+	// Depending on the version try to parse one way or another
+	var (
+		keyBytes, keyId []byte
+		err             error
+		extKeyBytes     []byte
+		extKey          *extkeys.ExtendedKey
+	)
+
+	subAccountIndex, ok := m["subaccountindex"].(float64)
+	if !ok {
+		subAccountIndex = 0
+	}
+
+	if version, ok := m["version"].(string); ok && version == "1" {
+		k := new(encryptedKeyJSONV1)
+		if err := json.Unmarshal(keyjson, k); err != nil {
+			return nil, err
+		}
+		keyBytes, keyId, err = decryptKeyV1(k, auth)
+		if err != nil {
+			return nil, err
+		}
+
+		extKey, err = extkeys.NewKeyFromString(extkeys.EmptyExtendedKeyString)
+	} else {
+		k := new(EncryptedKeyJSONV3)
+		if err := json.Unmarshal(keyjson, k); err != nil {
+			return nil, err
+		}
+		keyBytes, keyId, err = decryptKeyV3(k, auth)
+		if err != nil {
+			return nil, err
+		}
+
+		extKeyBytes, err = decryptExtendedKey(k, auth)
+		if err != nil {
+			return nil, err
+		}
+		extKey, err = extkeys.NewKeyFromString(string(extKeyBytes))
+	}
+	// Handle any decryption errors and return the key
+	if err != nil {
+		return nil, err
+	}
+	key := crypto.ToECDSAUnsafe(keyBytes)
+
+	id, err := uuid.FromBytes(keyId)
+	if err != nil {
+		return nil, err
+	}
+
+	return &types.Key{
+		ID:              id,
+		Address:         crypto.PubkeyToAddress(key.PublicKey),
+		PrivateKey:      key,
+		ExtendedKey:     extKey,
+		SubAccountIndex: uint32(subAccountIndex),
+	}, nil
+}
+
+func DecryptDataV3(cryptoJson CryptoJSON, auth string) ([]byte, error) {
+	if cryptoJson.Cipher != "aes-128-ctr" {
+		return nil, fmt.Errorf("Cipher not supported: %v", cryptoJson.Cipher)
+	}
+	mac, err := hex.DecodeString(cryptoJson.MAC)
+	if err != nil {
+		return nil, err
+	}
+
+	iv, err := hex.DecodeString(cryptoJson.CipherParams.IV)
+	if err != nil {
+		return nil, err
+	}
+
+	cipherText, err := hex.DecodeString(cryptoJson.CipherText)
+	if err != nil {
+		return nil, err
+	}
+
+	derivedKey, err := getKDFKey(cryptoJson, auth)
+	if err != nil {
+		return nil, err
+	}
+
+	calculatedMAC := crypto.Keccak256(derivedKey[16:32], cipherText)
+	if !bytes.Equal(calculatedMAC, mac) {
+		return nil, ErrDecrypt
+	}
+
+	plainText, err := aesCTRXOR(derivedKey[:16], cipherText, iv)
+	if err != nil {
+		return nil, err
+	}
+	return plainText, err
+}
+
+func decryptKeyV3(keyProtected *EncryptedKeyJSONV3, auth string) (keyBytes []byte, keyId []byte, err error) {
+	if keyProtected.Version != version {
+		return nil, nil, fmt.Errorf("Version not supported: %v", keyProtected.Version)
+	}
+	id, err := uuid.Parse(keyProtected.Id)
+	if err != nil {
+		return nil, nil, err
+	}
+	keyId = id[:]
+	plainText, err := DecryptDataV3(keyProtected.Crypto, auth)
+	if err != nil {
+		return nil, nil, err
+	}
+	return plainText, keyId, err
+}
+
+func decryptKeyV1(keyProtected *encryptedKeyJSONV1, auth string) (keyBytes []byte, keyId []byte, err error) {
+	id, err := uuid.Parse(keyProtected.Id)
+	if err != nil {
+		return nil, nil, err
+	}
+	keyId = id[:]
+
+	mac, err := hex.DecodeString(keyProtected.Crypto.MAC)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	iv, err := hex.DecodeString(keyProtected.Crypto.CipherParams.IV)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	cipherText, err := hex.DecodeString(keyProtected.Crypto.CipherText)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	derivedKey, err := getKDFKey(keyProtected.Crypto, auth)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	calculatedMAC := crypto.Keccak256(derivedKey[16:32], cipherText)
+	if !bytes.Equal(calculatedMAC, mac) {
+		return nil, nil, ErrDecrypt
+	}
+
+	plainText, err := aesCBCDecrypt(crypto.Keccak256(derivedKey[:16])[:16], cipherText, iv)
+	if err != nil {
+		return nil, nil, err
+	}
+	return plainText, keyId, err
+}
+
+func decryptExtendedKey(keyProtected *EncryptedKeyJSONV3, auth string) (plainText []byte, err error) {
+	if len(keyProtected.ExtendedKey.CipherText) == 0 {
+		return []byte(extkeys.EmptyExtendedKeyString), nil
+	}
+
+	if keyProtected.Version != version {
+		return nil, fmt.Errorf("Version not supported: %v", keyProtected.Version)
+	}
+
+	if keyProtected.ExtendedKey.Cipher != "aes-128-ctr" {
+		return nil, fmt.Errorf("Cipher not supported: %v", keyProtected.ExtendedKey.Cipher)
+	}
+
+	mac, err := hex.DecodeString(keyProtected.ExtendedKey.MAC)
+	if err != nil {
+		return nil, err
+	}
+
+	iv, err := hex.DecodeString(keyProtected.ExtendedKey.CipherParams.IV)
+	if err != nil {
+		return nil, err
+	}
+
+	cipherText, err := hex.DecodeString(keyProtected.ExtendedKey.CipherText)
+	if err != nil {
+		return nil, err
+	}
+
+	derivedKey, err := getKDFKey(keyProtected.ExtendedKey, auth)
+	if err != nil {
+		return nil, err
+	}
+
+	calculatedMAC := crypto.Keccak256(derivedKey[16:32], cipherText)
+	if !bytes.Equal(calculatedMAC, mac) {
+		return nil, ErrDecrypt
+	}
+
+	plainText, err = aesCTRXOR(derivedKey[:16], cipherText, iv)
+	if err != nil {
+		return nil, err
+	}
+	return plainText, err
+}
+
+func getKDFKey(cryptoJSON CryptoJSON, auth string) ([]byte, error) {
+	authArray := []byte(auth)
+	salt, err := hex.DecodeString(cryptoJSON.KDFParams["salt"].(string))
+	if err != nil {
+		return nil, err
+	}
+	dkLen := ensureInt(cryptoJSON.KDFParams["dklen"])
+
+	if cryptoJSON.KDF == keyHeaderKDF {
+		n := ensureInt(cryptoJSON.KDFParams["n"])
+		r := ensureInt(cryptoJSON.KDFParams["r"])
+		p := ensureInt(cryptoJSON.KDFParams["p"])
+		return scrypt.Key(authArray, salt, n, r, p, dkLen)
+
+	} else if cryptoJSON.KDF == "pbkdf2" {
+		c := ensureInt(cryptoJSON.KDFParams["c"])
+		prf := cryptoJSON.KDFParams["prf"].(string)
+		if prf != "hmac-sha256" {
+			return nil, fmt.Errorf("Unsupported PBKDF2 PRF: %s", prf)
+		}
+		key := pbkdf2.Key(authArray, salt, c, dkLen, sha256.New)
+		return key, nil
+	}
+
+	return nil, fmt.Errorf("Unsupported KDF: %s", cryptoJSON.KDF)
+}
+
+// TODO: can we do without this when unmarshalling dynamic JSON?
+// why do integers in KDF params end up as float64 and not int after
+// unmarshal?
+func ensureInt(x interface{}) int {
+	res, ok := x.(int)
+	if !ok {
+		res = int(x.(float64))
+	}
+	return res
+}
+
+func aesCTRXOR(key, inText, iv []byte) ([]byte, error) {
+	// AES-128 is selected due to size of encryptKey.
+	aesBlock, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, err
+	}
+	stream := cipher.NewCTR(aesBlock, iv)
+	outText := make([]byte, len(inText))
+	stream.XORKeyStream(outText, inText)
+	return outText, err
+}
+
+func aesCBCDecrypt(key, cipherText, iv []byte) ([]byte, error) {
+	aesBlock, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, err
+	}
+	decrypter := cipher.NewCBCDecrypter(aesBlock, iv)
+	paddedPlaintext := make([]byte, len(cipherText))
+	decrypter.CryptBlocks(paddedPlaintext, cipherText)
+	plaintext := pkcs7Unpad(paddedPlaintext)
+	if plaintext == nil {
+		return nil, ErrDecrypt
+	}
+	return plaintext, err
+}
+
+// From https://leanpub.com/gocrypto/read#leanpub-auto-block-cipher-modes
+func pkcs7Unpad(in []byte) []byte {
+	if len(in) == 0 {
+		return nil
+	}
+
+	padding := in[len(in)-1]
+	if int(padding) > len(in) || padding > aes.BlockSize {
+		return nil
+	} else if padding == 0 {
+		return nil
+	}
+
+	for i := len(in) - 1; i > len(in)-int(padding)-1; i-- {
+		if in[i] != padding {
+			return nil
+		}
+	}
+	return in[:len(in)-int(padding)]
+}
+
+func RawKeyToCryptoJSON(rawKeyFile []byte) (cj CryptoJSON, e error) {
+	var keyJSON EncryptedKeyJSONV3
+	if e := json.Unmarshal(rawKeyFile, &keyJSON); e != nil {
+		return cj, fmt.Errorf("failed to read key file: %s", e)
+	}
+
+	return keyJSON.Crypto, e
+}