org.oiue.tools.security

Class SecurityUtil

java.lang.Object

org.oiue.tools.security.SecurityUtil

public class SecurityUtil
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	KEY_DH_DES
static String	PRIVATE_KEY
static String	PUBLIC_KEY

Constructor Summary

Constructors

Constructor and Description
SecurityUtil()

Method Summary

Modifier and Type	Method and Description
static byte[]	decryptDH(byte[] data, byte[] publicKey, byte[] privateKey) DH 解密
static byte[]	encryptDH(byte[] data, byte[] publicKey, byte[] privateKey) DH 加密
static byte[]	getPrivateKey(Map<String,Object> keyMap) 从 Map 中取得私钥
static byte[]	getPublicKey(Map<String,Object> keyMap) 从 Map 中取得公钥
static SecretKey	getSecretKey(byte[] publicKey, byte[] privateKey) 根据对方的公钥和自己的私钥生成 本地密钥,返回的是SecretKey对象
static byte[]	getSecretKeyBytes(byte[] publicKey, byte[] privateKey) 根据对方的公钥和自己的私钥生成 本地密钥,返回的是SecretKey对象的字节数组
static Map<String,Object>	initKey() 甲方初始化并返回密钥对
static Map<String,Object>	initKey(byte[] key) 乙方根据甲方公钥初始化并返回密钥对

Methods inherited from class java.lang.Object

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

Field Detail

PUBLIC_KEY

public static final String PUBLIC_KEY

See Also:

Constant Field Values

PRIVATE_KEY

public static final String PRIVATE_KEY

See Also:

Constant Field Values

KEY_DH_DES

public static final String KEY_DH_DES

See Also:

Constant Field Values

Constructor Detail

SecurityUtil

public SecurityUtil()

Method Detail

initKey

public static Map<String,Object> initKey()

甲方初始化并返回密钥对

Returns:

Map<String, Object>

initKey

public static Map<String,Object> initKey(byte[] key)

乙方根据甲方公钥初始化并返回密钥对

Parameters:

key - 甲方的公钥

Returns:

Map<String, Object>

getSecretKeyBytes

public static byte[] getSecretKeyBytes(byte[] publicKey,
                                       byte[] privateKey)

根据对方的公钥和自己的私钥生成 本地密钥,返回的是SecretKey对象的字节数组

Parameters:

publicKey - 公钥

privateKey - 私钥

Returns:

byte[]

getSecretKey

public static SecretKey getSecretKey(byte[] publicKey,
                                     byte[] privateKey)

根据对方的公钥和自己的私钥生成 本地密钥,返回的是SecretKey对象

Parameters:

publicKey - 公钥

privateKey - 私钥

Returns:

SecretKey

getPublicKey

public static byte[] getPublicKey(Map<String,Object> keyMap)

从 Map 中取得公钥

Parameters:

keyMap - key map

Returns:

byte[]

getPrivateKey

public static byte[] getPrivateKey(Map<String,Object> keyMap)

从 Map 中取得私钥

Parameters:

keyMap - key map

Returns:

byte[]

encryptDH

public static byte[] encryptDH(byte[] data,
                               byte[] publicKey,
                               byte[] privateKey)

DH 加密

Parameters:

data - 带加密数据

publicKey - 甲方公钥

privateKey - 乙方私钥

Returns:

byte[]

decryptDH

public static byte[] decryptDH(byte[] data,
                               byte[] publicKey,
                               byte[] privateKey)

DH 解密

Parameters:

data - 待解密数据

publicKey - 乙方公钥

privateKey - 甲方私钥

Returns:

byte[]