com.h3c.sdn.misc.license

Class RsaMessage

java.lang.Object

com.h3c.sdn.misc.license.RsaMessage

public class RsaMessage
extends Object

Added by Yige Song KF4374, 2013-10-22 PN:SDN&License define type contains function for encrypt or decrypt

Constructor Summary

Constructors

Constructor and Description
RsaMessage()

Method Summary

Methods

Modifier and Type	Method and Description
static byte[]	decrypt(byte[] message, Key key) decrypt byte array to a string with key(RSA)
static String	decryptAndBase64(String message, Key key) decrypt a string with key(Base64)
static String	decryptWithRSA2048Key(byte[] data, Key key) decrypt a byte array to string with key(RSA/ECB/PKCS1Padding)<=the chosen one
static byte[]	decryptWithRSA2048KeyGetType(byte[] data, Key key)
static byte[]	encrypt(String message, Key key) encrypt a string to byte array with key(RSA)
static String	encryptAndBase64(String message, Key key) encrypt a string with key(Base64)
static String	encryptWithRSA2048Key(byte[] data, Key key) encrypt a byte array to string with key(RSA/ECB/PKCS1Padding)<=the chosen one
static byte[]	getSHA1Digest(byte[] data)
static Object	readFromFile(String fileName) read a object from a file(no use)
Key	readKeyFromFile(String fileName, boolean isPublic) read key from a file with relative path
static byte[]	sign(byte[] message, PrivateKey key) sign a xml string(encode or not)
static String	signDsfwithSHA1AndRsa2048(byte[] data, Key key) new sign function
static boolean	verify(byte[] data, String sign, PublicKey key) verify a xml string(encode or not)
static boolean	verifyDsfwithSHA512AndAES192(byte[] content, byte[] sign, Key key) new verify function

Methods inherited from class java.lang.Object

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

Constructor Detail

RsaMessage

public RsaMessage()

Method Detail

encrypt

public static byte[] encrypt(String message,
             Key key)
                      throws Exception

encrypt a string to byte array with key(RSA)

Parameters:

message -

key -

Returns:

byte array

Throws:

Exception

encryptAndBase64

public static String encryptAndBase64(String message,
                      Key key)
                               throws Exception

encrypt a string with key(Base64)

Parameters:

message -

key -

Returns:

string

Throws:

Exception

encryptWithRSA2048Key

public static String encryptWithRSA2048Key(byte[] data,
                           Key key)

encrypt a byte array to string with key(RSA/ECB/PKCS1Padding)<=the chosen one

Parameters:

data -

key -

Returns:

string

decrypt

public static byte[] decrypt(byte[] message,
             Key key)
                      throws Exception

decrypt byte array to a string with key(RSA)

Parameters:

message -

key -

Returns:

byte[]

Throws:

Exception

decryptAndBase64

public static String decryptAndBase64(String message,
                      Key key)
                               throws Exception

decrypt a string with key(Base64)

Parameters:

message -

key -

Returns:

string

Throws:

Exception

decryptWithRSA2048Key

public static String decryptWithRSA2048Key(byte[] data,
                           Key key)
                                    throws Exception

decrypt a byte array to string with key(RSA/ECB/PKCS1Padding)<=the chosen one

Parameters:

data -

key -

Returns:

string

Throws:

Exception

sign

public static byte[] sign(byte[] message,
          PrivateKey key)
                   throws Exception

sign a xml string(encode or not)

Parameters:

message -

key -

Returns:

byte[]

Throws:

Exception

readFromFile

public static Object readFromFile(String fileName)
                           throws Exception

read a object from a file(no use)

Parameters:

fileName -

Returns:

obj

Throws:

Exception

readKeyFromFile

public Key readKeyFromFile(String fileName,
                  boolean isPublic)

read key from a file with relative path

Parameters:

fileName -

isPublic -

Returns:

Key

getSHA1Digest

public static byte[] getSHA1Digest(byte[] data)
                            throws Exception

Throws:

Exception

signDsfwithSHA1AndRsa2048

public static String signDsfwithSHA1AndRsa2048(byte[] data,
                               Key key)
                                        throws Exception

new sign function

Parameters:

data -

key -

Returns:

Throws:

Exception

verifyDsfwithSHA512AndAES192

public static boolean verifyDsfwithSHA512AndAES192(byte[] content,
                                   byte[] sign,
                                   Key key)
                                            throws Exception

new verify function

Parameters:

content -

sign -

key -

Returns:

Throws:

Exception

verify

public static boolean verify(byte[] data,
             String sign,
             PublicKey key)
                      throws Exception

verify a xml string(encode or not)

Parameters:

data -

key -

sign -

Returns:

boolean

Throws:

Exception

decryptWithRSA2048KeyGetType

public static byte[] decryptWithRSA2048KeyGetType(byte[] data,
                                  Key key)
                                           throws Exception

Parameters:

data -

key -

Returns:

Throws:

Exception