xyz.shodown.common.util.encrypt

类 RsaUtil

java.lang.Object

xyz.shodown.common.util.encrypt.RsaUtil

public class RsaUtil
extends Object

构造器概要

构造器

构造器和说明
RsaUtil()

方法概要

限定符和类型	方法和说明
static byte[]	decrypt(byte[] dataBytes, PrivateKey privateKey) RSA解密
static String	decrypt(String data, PrivateKey privateKey, EncodingEnum encoding, Charset charset) RSA解密,指定字节编码格式以及字符编码
static File	decryptFile(File encryptFile, File resultFile, PrivateKey privateKey) 解密文件
static byte[]	encrypt(byte[] dataBytes, PublicKey publicKey) RSA加密
static String	encrypt(String data, PublicKey publicKey) RSA加密,默认base64url_safe编码
static String	encrypt(String data, PublicKey publicKey, EncodingEnum encoding, Charset charset) RSA加密,指定编码格式的加密
static File	encryptFile(File sourceFile, File resultFile, PublicKey publicKey) 对文件加密
static PrivateKey	getPrivateKey(String privateKey) 获取私钥
static PublicKey	getPublicKey(String publicKey) 获取公钥
static byte[]	sign(String data, PrivateKey privateKey, Charset charset) 签名
static String	sign(String data, PrivateKey privateKey, EncodingEnum encoding, Charset charset) 生成签名
static boolean	verify(byte[] dataBytes, PublicKey publicKey, byte[] signBytes) 验签
static boolean	verify(String srcData, PublicKey publicKey, String sign, EncodingEnum encoding, Charset charset) 验签

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

RsaUtil

public RsaUtil()

方法详细资料

getPrivateKey

public static PrivateKey getPrivateKey(String privateKey)
                                throws NoSuchAlgorithmException,
                                       InvalidKeySpecException

获取私钥

参数:

privateKey - 私钥字符串

返回:

抛出:

NoSuchAlgorithmException

InvalidKeySpecException

getPublicKey

public static PublicKey getPublicKey(String publicKey)
                              throws NoSuchAlgorithmException,
                                     InvalidKeySpecException

获取公钥

参数:

publicKey - 公钥字符串

返回:

抛出:

NoSuchAlgorithmException

InvalidKeySpecException

encrypt

public static String encrypt(String data,
                             PublicKey publicKey)
                      throws GeneralSecurityException,
                             IOException

RSA加密,默认base64url_safe编码

参数:

data - 待加密数据

publicKey - 公钥

返回:

加密内容

抛出:

GeneralSecurityException

IOException

encrypt

public static String encrypt(String data,
                             PublicKey publicKey,
                             EncodingEnum encoding,
                             Charset charset)
                      throws GeneralSecurityException,
                             IOException

RSA加密,指定编码格式的加密

参数:

data - 待加密数据

publicKey - 公钥

encoding - 编码格式

charset - 字符编码

返回:

对应编码格式的加密字符串

抛出:

GeneralSecurityException - GeneralSecurityException

IOException - IOException

encryptFile

public static File encryptFile(File sourceFile,
                               File resultFile,
                               PublicKey publicKey)
                        throws IOException,
                               GeneralSecurityException

对文件加密

参数:

sourceFile - 源文件(明文)

resultFile - 加密后的输出文件

publicKey - 公钥

返回:

加密文件

抛出:

IOException

GeneralSecurityException

encrypt

public static byte[] encrypt(byte[] dataBytes,
                             PublicKey publicKey)
                      throws GeneralSecurityException,
                             IOException

RSA加密

参数:

dataBytes - 待加密的字节数据

publicKey - 公钥

返回:

加密内容

抛出:

GeneralSecurityException

IOException

decrypt

public static String decrypt(String data,
                             PrivateKey privateKey,
                             EncodingEnum encoding,
                             Charset charset)
                      throws GeneralSecurityException,
                             IOException

RSA解密,指定字节编码格式以及字符编码

参数:

data - 待解密数据

privateKey - 私钥

encoding - 字节数组编码格式

charset - 字符编码格式

抛出:

GeneralSecurityException

IOException

decryptFile

public static File decryptFile(File encryptFile,
                               File resultFile,
                               PrivateKey privateKey)
                        throws IOException,
                               GeneralSecurityException

解密文件

参数:

encryptFile - 加密文件

resultFile - 待解密后的输出文件

privateKey - 私钥

抛出:

IOException

GeneralSecurityException

decrypt

public static byte[] decrypt(byte[] dataBytes,
                             PrivateKey privateKey)
                      throws GeneralSecurityException,
                             IOException

RSA解密

参数:

dataBytes - 待解密字节

privateKey - 私钥

抛出:

GeneralSecurityException

IOException

sign

public static byte[] sign(String data,
                          PrivateKey privateKey,
                          Charset charset)
                   throws GeneralSecurityException

签名

参数:

data - 待签名数据

privateKey - 私钥

charset - 字符编码

返回:

签名

抛出:

GeneralSecurityException

sign

public static String sign(String data,
                          PrivateKey privateKey,
                          EncodingEnum encoding,
                          Charset charset)
                   throws GeneralSecurityException

生成签名

参数:

data - 数据

privateKey - 私钥

encoding - 字节数组编码

charset - 字符编码

返回:

签名

抛出:

GeneralSecurityException - GeneralSecurityException

verify

public static boolean verify(String srcData,
                             PublicKey publicKey,
                             String sign,
                             EncodingEnum encoding,
                             Charset charset)
                      throws GeneralSecurityException

验签

参数:

srcData - 原始字符串

publicKey - 公钥

sign - 签名

返回:

是否验签通过

抛出:

GeneralSecurityException

verify

public static boolean verify(byte[] dataBytes,
                             PublicKey publicKey,
                             byte[] signBytes)
                      throws GeneralSecurityException

验签

参数:

dataBytes - 原始字节

publicKey - 公钥

signBytes - 签名

返回:

是否验签通过

抛出:

GeneralSecurityException