package cn.sinata.util
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import android.annotation.SuppressLint
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import cn.sinata.xldutils.sysErr
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import java.io.UnsupportedEncodingException
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import java.security.InvalidAlgorithmParameterException
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import java.security.InvalidKeyException
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import java.security.NoSuchAlgorithmException
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import javax.crypto.BadPaddingException
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import javax.crypto.Cipher
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import javax.crypto.IllegalBlockSizeException
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import javax.crypto.NoSuchPaddingException
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import javax.crypto.spec.IvParameterSpec
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import javax.crypto.spec.SecretKeySpec
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object DES {
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private val CHAR_SET = "utf-8"
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private var iv: ByteArray? = null
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//密钥
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private var skey: ByteArray? = null
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external fun getKeyValue(): ByteArray
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external fun getIv(): ByteArray
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init {
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// System.loadLibrary("security")
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// skey = getKeyValue()
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// iv = getIv()
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skey = "YYPWAPP=".toByteArray()
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iv = byteArrayOf(12, 22, 32, 43, 51, 64, 57, 98)
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}
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/**
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* 加密
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* @param encryptString 待加密字符
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* @return 加密后字符串
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*/
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@SuppressLint("TrulyRandom")
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fun encryptDES(encryptString: String): String {
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val zeroIv = IvParameterSpec(iv)
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val key = SecretKeySpec(skey, "DES")
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try {
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val cipher = Cipher.getInstance("DES/CBC/PKCS5Padding")
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cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv)
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val encryptedData = cipher.doFinal(encryptString.toByteArray(charset(CHAR_SET)))
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return Base64DES.encode(encryptedData)
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} catch (e: NoSuchAlgorithmException) {
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e.printStackTrace()
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} catch (e: NoSuchPaddingException) {
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e.printStackTrace()
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} catch (e: IllegalBlockSizeException) {
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e.printStackTrace()
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} catch (e: BadPaddingException) {
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e.printStackTrace()
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} catch (e: InvalidKeyException) {
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e.printStackTrace()
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} catch (e: InvalidAlgorithmParameterException) {
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e.printStackTrace()
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}
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return encryptString
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}
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/**
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* DES解密
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*
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* @param decryptString 待解密字符
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* @return 解密后字符串
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*/
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fun decryptDES(decryptString: String): String {
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val byteMi = Base64DES.decode(decryptString)
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val zeroIv = IvParameterSpec(iv)
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val key = SecretKeySpec(skey, "DES")
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try {
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val cipher = Cipher.getInstance("DES/CBC/PKCS5Padding")
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cipher.init(Cipher.DECRYPT_MODE, key, zeroIv)
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val decryptedData = cipher.doFinal(byteMi)
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return String(decryptedData, charset(CHAR_SET))
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} catch (e: NoSuchAlgorithmException) {
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e.printStackTrace()
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} catch (e: NoSuchPaddingException) {
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e.printStackTrace()
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} catch (e: InvalidKeyException) {
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e.printStackTrace()
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} catch (e: InvalidAlgorithmParameterException) {
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e.printStackTrace()
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} catch (e: UnsupportedEncodingException) {
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e.printStackTrace()
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} catch (e: IllegalBlockSizeException) {
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e.printStackTrace()
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} catch (e: BadPaddingException) {
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e.printStackTrace()
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}
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// val s = decryptDES(decryptString)
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// System.err.println("des--------------->" + s)
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return decryptString
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// val byteMi = Base64DES.decode(decryptString)
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//
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// val zeroIv = IvParameterSpec(iv)
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//
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// val key = SecretKeySpec(skey, "DES")
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//
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// try {
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// val cipher = Cipher.getInstance("DES/CBC/PKCS5Padding")
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// cipher.init(Cipher.DECRYPT_MODE, key, zeroIv)
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// val decryptedData = cipher.doFinal(byteMi)
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// return String(decryptedData, charset(CHAR_SET))
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// } catch (e: NoSuchAlgorithmException) {
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// e.printStackTrace()
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// } catch (e: NoSuchPaddingException) {
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// e.printStackTrace()
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// } catch (e: InvalidKeyException) {
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// e.printStackTrace()
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// } catch (e: InvalidAlgorithmParameterException) {
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// e.printStackTrace()
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// } catch (e: UnsupportedEncodingException) {
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// e.printStackTrace()
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// } catch (e: IllegalBlockSizeException) {
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// e.printStackTrace()
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// } catch (e: BadPaddingException) {
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// e.printStackTrace()
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// }
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//
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// return decryptString
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}
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}
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