/* * ********************************************************************************************************************* * * !! * .F88X * X8888Y * .}888888N; * i888888N; .:! .I$WI: * R888888I .'N88~ i8}+8Y&8"l8i$8>8W~'>W8}8]KW+8IIN"8& * .R888888I .;N8888~ .X8' "8I.!,/8" !%NY8`"8I8~~8>,88I * +888888N; .8888888Y "&&8Y.}8, * ./888888N; .R888888Y .'}~ .>}'.`+> i}! "i' +/' .'i~ !11,.:">, .~]! .i}i * ~888888%: .I888888l .]88~`1/iY88Ii+1'.R$8$8]"888888888> Y8$ W8E X8E W8888'188Il}Y88$* * 18888888 E8888881 .]W%8$`R8X'&8%++N8i,8N%N8+l8%` .}8N:.R$RE%N88N%N$K$R 188,FE$8%~Y88I * .E888888I .i8888888' .:$8I;88+`E8R:/8N,.>881.`$8E/1/]N8X.Y8N`"KF&&FK!'88*."88K./$88%RN888+~ * 8888888I .,N888888~ ~88i"8W,!N8*.I88.}888%F,i$88"F88" 888:E8X.>88!i88>`888*.}Fl1]*}1YKi' * i888888N' I888Y ]88;/EX*IFKFK88X K8R .l8W 88Y ~88}'88E&%8W.X8N``]88!.$8K .:W8I * .i888888N; I8Y .&8$ .X88! i881.:%888>I88 ;88] +88+.';;;;:.Y88X 18N.,88l .+88/ * .:R888888I * .&888888I Copyright (c) 2016-2020. 博锐尚格科技股份有限公司 * ~8888' * .!88~ All rights reserved. * * ********************************************************************************************************************* */ package com.persagy.service.utils.crypt import javax.crypto.BadPaddingException import javax.crypto.Cipher import javax.crypto.IllegalBlockSizeException import javax.crypto.NoSuchPaddingException import java.io.IOException import java.security.* import java.security.interfaces.RSAPrivateKey import java.security.interfaces.RSAPublicKey import java.security.spec.InvalidKeySpecException import java.security.spec.PKCS8EncodedKeySpec import java.security.spec.X509EncodedKeySpec import java.util.* /** * RSA安全编码组件 * * @author Andy */ abstract class SRSACoderUtil : SCoderUtil() { companion object { const val KEY_ALGORITHM = "RSA" const val SIGNATURE_ALGORITHM = "MD5withRSA" private const val PUBLIC_KEY = "RSAPublicKey" private const val PRIVATE_KEY = "RSAPrivateKey" /** * 用私钥对信息生成数字签名 * * @param data 加密数据 * @param privateKey 私钥 * @return * @throws IOException * @throws NoSuchAlgorithmException * @throws InvalidKeySpecException * @throws InvalidKeyException * @throws SignatureException */ @Throws(IOException::class, NoSuchAlgorithmException::class, InvalidKeySpecException::class, InvalidKeyException::class, SignatureException::class) fun sign(data: ByteArray, privateKey: String): String? { // 解密由base64编码的私钥 val keyBytes = Base64.getDecoder().decode(privateKey) // 构造PKCS8EncodedKeySpec对象 val pkcs8KeySpec = PKCS8EncodedKeySpec(keyBytes!!) // KEY_ALGORITHM 指定的加密算法 val keyFactory = KeyFactory.getInstance(KEY_ALGORITHM) // 取私钥匙对象 val priKey = keyFactory.generatePrivate(pkcs8KeySpec) // 用私钥对信息生成数字签名 val signature = Signature.getInstance(SIGNATURE_ALGORITHM) signature.initSign(priKey) signature.update(data) return Base64.getEncoder().encodeToString(signature.sign()) } // Fun sign() /** * 校验数字签名 * * @param data 加密数据 * @param publicKey 公钥 * @param sign 数字签名 * @return 校验成功返回true 失败返回false * @throws IOException * @throws NoSuchAlgorithmException * @throws InvalidKeySpecException * @throws InvalidKeyException * @throws SignatureException */ @Throws(IOException::class, NoSuchAlgorithmException::class, InvalidKeySpecException::class, InvalidKeyException::class, SignatureException::class) fun verify(data: ByteArray, publicKey: String, sign: String): Boolean { // 解密由base64编码的公钥 val keyBytes = Base64.getDecoder().decode(publicKey) // 构造X509EncodedKeySpec对象 val keySpec = X509EncodedKeySpec(keyBytes!!) // KEY_ALGORITHM 指定的加密算法 val keyFactory = KeyFactory.getInstance(KEY_ALGORITHM) // 取公钥匙对象 val pubKey = keyFactory.generatePublic(keySpec) val signature = Signature.getInstance(SIGNATURE_ALGORITHM) signature.initVerify(pubKey) signature.update(data) // 验证签名是否正常 return signature.verify(Base64.getDecoder().decode(sign)) } // Fun verify() /** * 解密

* 用私钥解密 * * @param data * @param key * @return * @throws IOException * @throws NoSuchAlgorithmException * @throws InvalidKeySpecException * @throws NoSuchPaddingException * @throws InvalidKeyException * @throws BadPaddingException * @throws IllegalBlockSizeException */ @Throws(IOException::class, NoSuchAlgorithmException::class, InvalidKeySpecException::class, NoSuchPaddingException::class, InvalidKeyException::class, IllegalBlockSizeException::class, BadPaddingException::class) fun decryptByPrivateKey(data: ByteArray, key: String): ByteArray { // 对密钥解密 val keyBytes = Base64.getDecoder().decode(key) // 取得私钥 val pkcs8KeySpec = PKCS8EncodedKeySpec(keyBytes!!) val keyFactory = KeyFactory.getInstance(KEY_ALGORITHM) val privateKey = keyFactory.generatePrivate(pkcs8KeySpec) // 对数据解密 val cipher = Cipher.getInstance(keyFactory.algorithm) cipher.init(Cipher.DECRYPT_MODE, privateKey) return cipher.doFinal(data) } // Fun decryptByPrivateKey() /** * 解密

* 用公钥解密 * * @param data * @param key * @return * @throws IOException * @throws NoSuchAlgorithmException * @throws InvalidKeySpecException * @throws NoSuchPaddingException * @throws InvalidKeyException * @throws BadPaddingException * @throws IllegalBlockSizeException */ @Throws(IOException::class, NoSuchAlgorithmException::class, InvalidKeySpecException::class, NoSuchPaddingException::class, InvalidKeyException::class, IllegalBlockSizeException::class, BadPaddingException::class) fun decryptByPublicKey(data: ByteArray, key: String): ByteArray { // 对密钥解密 val keyBytes = Base64.getDecoder().decode(key) // 取得公钥 val x509KeySpec = X509EncodedKeySpec(keyBytes!!) val keyFactory = KeyFactory.getInstance(KEY_ALGORITHM) val publicKey = keyFactory.generatePublic(x509KeySpec) // 对数据解密 val cipher = Cipher.getInstance(keyFactory.algorithm) cipher.init(Cipher.DECRYPT_MODE, publicKey) return cipher.doFinal(data) } // Fun decryptByPublicKey() /** * 用公钥加密 * * @param data * @param key * @return * @throws IOException * @throws NoSuchAlgorithmException * @throws InvalidKeySpecException * @throws NoSuchPaddingException * @throws InvalidKeyException * @throws BadPaddingException * @throws IllegalBlockSizeException */ @Throws(IOException::class, NoSuchAlgorithmException::class, InvalidKeySpecException::class, NoSuchPaddingException::class, InvalidKeyException::class, IllegalBlockSizeException::class, BadPaddingException::class) fun encryptByPublicKey(data: ByteArray, key: String): ByteArray { // 对公钥解密 val keyBytes = Base64.getDecoder().decode(key) // 取得公钥 val x509KeySpec = X509EncodedKeySpec(keyBytes!!) val keyFactory = KeyFactory.getInstance(KEY_ALGORITHM) val publicKey = keyFactory.generatePublic(x509KeySpec) // 对数据加密 val cipher = Cipher.getInstance(keyFactory.algorithm) cipher.init(Cipher.ENCRYPT_MODE, publicKey) return cipher.doFinal(data) } // Fun encryptByPublicKey() /** * 用私钥加密 * * @param data * @param key * @return * @throws IOException * @throws NoSuchAlgorithmException * @throws InvalidKeySpecException * @throws NoSuchPaddingException * @throws InvalidKeyException * @throws BadPaddingException * @throws IllegalBlockSizeException */ @Throws(IOException::class, NoSuchAlgorithmException::class, InvalidKeySpecException::class, NoSuchPaddingException::class, InvalidKeyException::class, IllegalBlockSizeException::class, BadPaddingException::class) fun encryptByPrivateKey(data: ByteArray, key: String): ByteArray { // 对密钥解密 val keyBytes = Base64.getDecoder().decode(key) // 取得私钥 val pkcs8KeySpec = PKCS8EncodedKeySpec(keyBytes!!) val keyFactory = KeyFactory.getInstance(KEY_ALGORITHM) val privateKey = keyFactory.generatePrivate(pkcs8KeySpec) // 对数据加密 val cipher = Cipher.getInstance(keyFactory.algorithm) cipher.init(Cipher.ENCRYPT_MODE, privateKey) return cipher.doFinal(data) } // Fun encryptByPrivateKey() /** * 取得私钥 * * @param keyMap * @return */ fun getPrivateKey(keyMap: Map): String? { val key = keyMap[PRIVATE_KEY] as Key return Base64.getEncoder().encodeToString(key.encoded) } // Fun getPrivateKey() /** * 取得公钥 * * @param keyMap * @return */ fun getPublicKey(keyMap: Map): String? { val key = keyMap[PUBLIC_KEY] as Key return Base64.getEncoder().encodeToString(key.encoded) } // Fun getPublicKey() /** * 初始化密钥 * * @return * @throws NoSuchAlgorithmException */ @Throws(NoSuchAlgorithmException::class) fun initKey(): Map { val keyPairGen = KeyPairGenerator.getInstance(KEY_ALGORITHM) keyPairGen.initialize(1024) val keyPair = keyPairGen.generateKeyPair() // 公钥 val publicKey = keyPair.public as RSAPublicKey // 私钥 val privateKey = keyPair.private as RSAPrivateKey val keyMap = HashMap(2) keyMap[PUBLIC_KEY] = publicKey keyMap[PRIVATE_KEY] = privateKey return keyMap } // Fun initKey() } } // Class SRSACoderUtil