com.alipay.mychain.sdk.api.utils

类 ConfidentialUtil

java.lang.Object

com.alipay.mychain.sdk.api.utils.ConfidentialUtil

public class ConfidentialUtil
extends Object

版本:

$Id: ConfidentialUtil.java, v 0.1 2019-04-10 11:15 AM evan Exp $$

作者:

evan

构造器概要

构造器

构造器和说明
ConfidentialUtil()

方法概要

限定符和类型	方法和说明
static byte[]	decrypt(String userKey, byte[] oldOutput, String txHash)
static byte[]	decryptReceiptData(byte[] data, String txHexEncodedKey) 解密交易回执中的 Output、Log 格式： <12bytes IV> <16bytes AuthTag>
static byte[]	decryptSM4CBC_V1(String userSymKeySeed, byte[] cipher, String txHash)
static Transaction	decryptTransactionData(byte[] data, String txHexEncodedKey) 解密链上被加密的 TEE 交易 格式 <16bits Header> <12bytes IV> <16bytes AuthTag> Header: - 0x10(default): RSA, EncryptedAESKeysSize = 256bytes - 0x40: ECIES, EncryptedAESKeysSize = 109bytes
static byte[]	keyGenerate(String userKey, byte[] txHash)
static byte[]	keyGenerate(String userKey, byte[] txHash, HashTypeEnum hashTypeEnum)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

ConfidentialUtil

public ConfidentialUtil()

方法详细资料

decrypt

public static byte[] decrypt(String userKey,
                             byte[] oldOutput,
                             String txHash)

参数:

userKey -

oldOutput -

txHash -

返回:

decryptReceiptData

public static byte[] decryptReceiptData(byte[] data,
                                        String txHexEncodedKey)
                                 throws Exception

解密交易回执中的 Output、Log 格式： <12bytes IV> <16bytes AuthTag>

参数:

data -

txHexEncodedKey -

返回:

抛出:

Exception

decryptSM4CBC_V1

public static byte[] decryptSM4CBC_V1(String userSymKeySeed,
                                      byte[] cipher,
                                      String txHash)

参数:

userSymKeySeed -

cipher -

txHash -

返回:

decrypted result(without HMAC)

keyGenerate

public static byte[] keyGenerate(String userKey,
                                 byte[] txHash)

参数:

userKey -

txHash -

返回:

keyGenerate

public static byte[] keyGenerate(String userKey,
                                 byte[] txHash,
                                 HashTypeEnum hashTypeEnum)

参数:

userKey -

txHash -

hashTypeEnum -

返回:

decryptTransactionData

public static Transaction decryptTransactionData(byte[] data,
                                                 String txHexEncodedKey)
                                          throws Exception

解密链上被加密的 TEE 交易 格式 <16bits Header> <12bytes IV> <16bytes AuthTag> Header: - 0x10(default): RSA, EncryptedAESKeysSize = 256bytes - 0x40: ECIES, EncryptedAESKeysSize = 109bytes

参数:

data -

txHexEncodedKey -

返回:

抛出:

Exception