程序包 com.baidubce.services.iothisk.device.crypto

类 AesEncrypt

java.lang.Object

com.baidubce.services.iothisk.device.crypto.AesEncrypt

public class AesEncrypt
extends Object

Provides AES crypto functions

构造器概要

构造器

构造器	说明
AesEncrypt()

方法概要

修饰符和类型	方法	说明
static byte[]	decrypt(byte[] data, SecretKey key, IvParameterSpec iv, String cipherName)	Decrypt message with specified secret key, cipher name, init vector and cipher name.
static byte[]	decryptByCTRNoPadding(byte[] data, byte[] key, byte[] iv)	Decrypt message with AES/CTR/NoPadding cipher
static byte[]	encrypt(byte[] data, SecretKey key, String cipherName)	Encrypt message with specified secret key and cipher name.
static byte[]	encrypt(byte[] data, SecretKey key, IvParameterSpec iv, String cipherName)	Encrypt message with specified secret key, cipher name, init vector and cipher name.
static byte[]	encryptByCTRNoPadding(byte[] data, byte[] key, byte[] iv)	Encrypt message with AES/CTR/NoPadding cipher
static SecretKey	loadKey(byte[] key, String algorithm)	Load secret key with provided key data and specified algorithm

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

AesEncrypt

public AesEncrypt()

方法详细资料

loadKey

public static SecretKey loadKey(byte[] key,
                                String algorithm)

Load secret key with provided key data and specified algorithm

参数:

key - specified key data in btye array

algorithm - specified algorithm

返回:

secret key

encrypt

public static byte[] encrypt(byte[] data,
                             SecretKey key,
                             String cipherName)

Encrypt message with specified secret key and cipher name.

参数:

data - specified message data in byte array

key - specified secret key

cipherName - specified cipher name

返回:

cipher message in byte array

encrypt

public static byte[] encrypt(byte[] data,
                             SecretKey key,
                             IvParameterSpec iv,
                             String cipherName)

Encrypt message with specified secret key, cipher name, init vector and cipher name.

参数:

data - specified message data in byte array

key - specified secret key

iv - specified init vector

cipherName - specified cipher name

返回:

cipher message in byte array

decrypt

public static byte[] decrypt(byte[] data,
                             SecretKey key,
                             IvParameterSpec iv,
                             String cipherName)

Decrypt message with specified secret key, cipher name, init vector and cipher name.

参数:

data - specified cipher message data in byte array

key - specified secret key

iv - specified init vector

cipherName - specified cipher name

返回:

plain message in byte array

encryptByCTRNoPadding

public static byte[] encryptByCTRNoPadding(byte[] data,
                                           byte[] key,
                                           byte[] iv)

Encrypt message with AES/CTR/NoPadding cipher

参数:

data - specified message data in byte array

key - specified key in byte array

iv - specified init vector

返回:

cipher message in byte array

decryptByCTRNoPadding

public static byte[] decryptByCTRNoPadding(byte[] data,
                                           byte[] key,
                                           byte[] iv)

Decrypt message with AES/CTR/NoPadding cipher

参数:

data - specified message data in byte array

key - specified key in byte array

iv - specified init vector

返回:

plain message in byte array