java版本自己封装base64
package com.qhong; import java.io.UnsupportedEncodingException; import org.apache.commons.lang.StringUtils; public class Base64Utils { /** * Base64方法重写 */ public static void main(String[] args) { String aa = "商户私有域"; String aaa = byteArrayToBase64(aa.getBytes()); System.out.println(aaa); try { String bb = new String(base64ToByteArray(aaa)); System.out.println(bb); String tests = encodeBuffer("【厚本金融】", "GBK"); System.out.println(tests); System.out.println(decodeBuffer(tests, "GBK")); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } /** * 将字符数组base64字符串 * @param a 要转化的字符数组 * @return base64字符串 */ public static String byteArrayToBase64(byte[] a) { int aLen = a.length; //总长度 int numFullGroups = aLen / 3; //以3个byte组成以4个字符为一组的组数 int numBytesInPartialGroup = aLen - 3 * numFullGroups; //余数 int resultLen = 4 * ((aLen + 2) / 3); //输出长度总是4倍数，如果有余数，(aLen+2)/3保证将余数包含，并有空间放置填充符= StringBuffer result = new StringBuffer(resultLen); int inCursor = 0; for (int i = 0; i < numFullGroups; i++) { int byte0 = a[inCursor++] & 0xff; int byte1 = a[inCursor++] & 0xff; int byte2 = a[inCursor++] & 0xff; result.append(intToBase64[byte0 >> 2]); result.append(intToBase64[(byte0 << 4) & 0x3f | (byte1 >> 4)]); result.append(intToBase64[(byte1 << 2) & 0x3f | (byte2 >> 6)]); result.append(intToBase64[byte2 & 0x3f]); } //处理余数 if (numBytesInPartialGroup != 0) { int byte0 = a[inCursor++] & 0xff; result.append(intToBase64[byte0 >> 2]); //余数为1 if (numBytesInPartialGroup == 1) { result.append(intToBase64[(byte0 << 4) & 0x3f]); result.append("=="); } else { // 余数为2 int byte1 = a[inCursor++] & 0xff; result.append(intToBase64[(byte0 << 4) & 0x3f | (byte1 >> 4)]); result.append(intToBase64[(byte1 << 2) & 0x3f]); result.append('='); } } return result.toString(); } static final char intToBase64[] = { 'A', 'B', 'C', 'D', 'E', 'F', /* 索引 0 ~ 5*/ 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', /* 索引6 ~ 18*/ 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', /* 索引 19 ~ 31*/ 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', /* 索引 32 ~ 44*/ 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', /* 索引 45 ~ 57*/ '6', '7', '8', '9', '.'/*原先是字符+*/, '_'/*原先是字符/ */ }; /* 索引58 ~ 63*/ /** * base64字符串还原为字符数组 * @param s base64字符串 * @return 还原后的字符串数组 * @throws Exception */ public static byte[] base64ToByteArray(String s) throws Exception { //字符总长必须是4的倍数 int sLen = s.length(); int numGroups = sLen / 4; if (4 * numGroups != sLen) throw new IllegalArgumentException( "字串长度必须是4的倍数"); //余1个byte则算漏了两个byte，余2个byte则算漏掉了1个byte int missingBytesInLastGroup = 0; int numFullGroups = numGroups; if (sLen != 0) { //余2个byte的情况 if (s.charAt(sLen - 1) == '=') { missingBytesInLastGroup++; //如果有余数发生，则完整3个byte组数少一个。 numFullGroups--; } //余1个byte的情况 if (s.charAt(sLen - 2) == '=') missingBytesInLastGroup++; } //总字节长度 byte[] result = new byte[3 * numGroups - missingBytesInLastGroup]; try { int inCursor = 0, outCursor = 0; for (int i = 0; i < numFullGroups; i++) { int ch0 = base64toInt(s.charAt(inCursor++), base64ToInt); int ch1 = base64toInt(s.charAt(inCursor++), base64ToInt); int ch2 = base64toInt(s.charAt(inCursor++), base64ToInt); int ch3 = base64toInt(s.charAt(inCursor++), base64ToInt); result[outCursor++] = (byte) ((ch0 << 2) | (ch1 >> 4)); result[outCursor++] = (byte) ((ch1 << 4) | (ch2 >> 2)); result[outCursor++] = (byte) ((ch2 << 6) | ch3); } if (missingBytesInLastGroup != 0) { int ch0 = base64toInt(s.charAt(inCursor++), base64ToInt); int ch1 = base64toInt(s.charAt(inCursor++), base64ToInt); //不管余1还是余2个byte，肯定要解码一个byte。 result[outCursor++] = (byte) ((ch0 << 2) | (ch1 >> 4)); //如果余2个，即差一个才构成3byte，那么还要解码第二个byte。 if (missingBytesInLastGroup == 1) { int ch2 = base64toInt(s.charAt(inCursor++), base64ToInt); result[outCursor++] = (byte) ((ch1 << 4) | (ch2 >> 2)); } } } catch (Exception e) { throw e; } return result; } private static int base64toInt(char c, byte[] alphaToInt) throws Exception { int result = alphaToInt[c]; if (result < 0) throw new Exception("illegal index!");//非法索引值 return result; } static final byte base64ToInt[] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1/*原先是62*/, -1, -1, 62/*原先是-1*/, -1/*原先是63*/, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, 63/*原先是-1*/, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51 }; /** * @param str原始中文字符串 * @param charset进行二进制字符串转化的字符编码 * @return 二进制字符串 */ public static String encodeBuffer(String str ,String charset){ if (str == null) { str = StringUtils.EMPTY; } try { return Base64Utils.byteArrayToBase64(str.getBytes(charset)); } catch (UnsupportedEncodingException e) { return new String(); } } /** * 此方法为还原中文字符串转化后的二进制字符串 * @param str 二进制字符串 * @param charset 字符编码 * @return 正常中文字符串 */ public static String decodeBuffer(String str ,String charset){ if (str == null) { return str = StringUtils.EMPTY; } try { byte[] byteStr; try { byteStr = Base64Utils.base64ToByteArray(str.trim()); } catch (Exception e) { return new String(); } return new String(byteStr,charset); } catch (UnsupportedEncodingException e) { return new String(); } } }
与上面对应的net版本：
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.IO; using System.Text.RegularExpressions; namespace ConsoleApplication2 { public class Base64Utils { ///** // * Base64方法重写 // */ //public static void main(String[] args) //{ // String aa = "商户私有域"; // String aaa = byteArrayToBase64(aa.getBytes()); // System.out.println(aaa); // try // { // String bb = new String(base64ToByteArray(aaa)); // System.out.println(bb); // String tests = encodeBuffer("【厚本金融】", "GBK"); // System.out.println(tests); // System.out.println(decodeBuffer(tests, "GBK")); // } // catch (Exception e) // { // // TODO Auto-generated catch block // e.printStackTrace(); // } //} /** * 将字符数组base64字符串 * @param a 要转化的字符数组 * @return base64字符串 */ public static String byteArrayToBase64(byte[] a) { int aLen = a.Length; //总长度 int numFullGroups = aLen / 3; //以3个byte组成以4个字符为一组的组数 int numBytesInPartialGroup = aLen - 3 * numFullGroups; //余数 int resultLen = 4 * ((aLen + 2) / 3); //输出长度总是4倍数，如果有余数，(aLen+2)/3保证将余数包含，并有空间放置填充符= //StringBuffer result = new StringBuffer(resultLen); StringBuilder result = new StringBuilder(resultLen); int inCursor = 0; for (int i = 0; i < numFullGroups; i++) { int byte0 = a[inCursor++] & 0xff; int byte1 = a[inCursor++] & 0xff; int byte2 = a[inCursor++] & 0xff; result.Append(intToBase64[byte0 >> 2]); result.Append(intToBase64[(byte0 << 4) & 0x3f | (byte1 >> 4)]); result.Append(intToBase64[(byte1 << 2) & 0x3f | (byte2 >> 6)]); result.Append(intToBase64[byte2 & 0x3f]); } //处理余数 if (numBytesInPartialGroup != 0) { int byte0 = a[inCursor++] & 0xff; result.Append(intToBase64[byte0 >> 2]); //余数为1 if (numBytesInPartialGroup == 1) { result.Append(intToBase64[(byte0 << 4) & 0x3f]); result.Append("=="); } else { // 余数为2 int byte1 = a[inCursor++] & 0xff; result.Append(intToBase64[(byte0 << 4) & 0x3f | (byte1 >> 4)]); result.Append(intToBase64[(byte1 << 2) & 0x3f]); result.Append('='); } } return result.ToString(); } static readonly char[] intToBase64 = { 'A', 'B', 'C', 'D', 'E', 'F', /* 索引 0 ~ 5*/ 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', /* 索引6 ~ 18*/ 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', /* 索引 19 ~ 31*/ 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', /* 索引 32 ~ 44*/ 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', /* 索引 45 ~ 57*/ '6', '7', '8', '9', '.'/*原先是字符+*/, '_'/*原先是字符/ */ }; /* 索引58 ~ 63*/ /** * base64字符串还原为字符数组 * @param s base64字符串 * @return 还原后的字符串数组 * @throws Exception */ public static byte[] base64ToByteArray(String s) { //字符总长必须是4的倍数 int sLen = s.Length; int numGroups = sLen / 4; if (4 * numGroups != sLen) throw new ArgumentException( "字串长度必须是4的倍数"); //余1个byte则算漏了两个byte，余2个byte则算漏掉了1个byte int missingBytesInLastGroup = 0; int numFullGroups = numGroups; if (sLen != 0) { //余2个byte的情况 if (s.charAt(sLen - 1) == '=') { missingBytesInLastGroup++; //如果有余数发生，则完整3个byte组数少一个。 numFullGroups--; } //余1个byte的情况 if (s.charAt(sLen - 2) == '=') missingBytesInLastGroup++; } //总字节长度 byte[] result = new byte[3 * numGroups - missingBytesInLastGroup]; try { int inCursor = 0, outCursor = 0; for (int i = 0; i < numFullGroups; i++) { int ch0 = base64toInt(s.charAt(inCursor++), base64ToInt); int ch1 = base64toInt(s.charAt(inCursor++), base64ToInt); int ch2 = base64toInt(s.charAt(inCursor++), base64ToInt); int ch3 = base64toInt(s.charAt(inCursor++), base64ToInt); result[outCursor++] = (byte)((ch0 << 2) | (ch1 >> 4)); result[outCursor++] = (byte)((ch1 << 4) | (ch2 >> 2)); result[outCursor++] = (byte)((ch2 << 6) | ch3); } if (missingBytesInLastGroup != 0) { int ch0 = base64toInt(s.charAt(inCursor++), base64ToInt); int ch1 = base64toInt(s.charAt(inCursor++), base64ToInt); //不管余1还是余2个byte，肯定要解码一个byte。 result[outCursor++] = (byte)((ch0 << 2) | (ch1 >> 4)); //如果余2个，即差一个才构成3byte，那么还要解码第二个byte。 if (missingBytesInLastGroup == 1) { int ch2 = base64toInt(s.charAt(inCursor++), base64ToInt); result[outCursor++] = (byte)((ch1 << 4) | (ch2 >> 2)); } } } catch (Exception e) { throw e; } return result; } private static int base64toInt(char c, int[] alphaToInt) { int result = alphaToInt[c]; if (result < 0) throw new Exception("illegal index!");//非法索引值 return result; } static readonly int[] base64ToInt = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1/*原先是62*/, 1, 1, 62/*原先是1*/, 1/*原先是63*/, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 1, 1, 1, 1, 1, 1, 1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 1, 1, 1, 1, 63/*原先是1*/, 1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51 }; //static readonly byte[] base64ToInt = { -1, -1, -1, -1, -1, -1, -1, -1, // -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // -1, -1/*原先是62*/, -1, -1, 62/*原先是-1*/, -1/*原先是63*/, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, // -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, // 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, // 63/*原先是-1*/, -1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, // 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51 }; /** * @param str原始中文字符串 * @param charset进行二进制字符串转化的字符编码 * @return 二进制字符串 */ public static String encodeBuffer(String str) { if (str == null) { str = String.Empty; } try { return Base64Utils.byteArrayToBase64(Encoding.UTF8.GetBytes(str)); } catch (Exception e) { return String.Empty; } } /** * 此方法为还原中文字符串转化后的二进制字符串 * @param str 二进制字符串 * @param charset 字符编码 * @return 正常中文字符串 */ public static String decodeBuffer(String str) { if (str == null) { return str = String.Empty; } try { byte[] byteStr; try { byteStr = Base64Utils.base64ToByteArray(str.Trim()); } catch (Exception e) { return String.Empty; } return Encoding.UTF8.GetString(byteStr); } catch (Exception e) { return String.Empty; } } } }
3des加密，解密：
java版本：
package com.qhong; import java.security.Key; import javax.crypto.Cipher; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESedeKeySpec; import javax.crypto.spec.IvParameterSpec; /*import javax.crypto.Cipher; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESedeKeySpec; import javax.crypto.spec.IvParameterSpec;*/ import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; public class EncodeUtil { public static void main(String[] args) throws Exception { /* byte[] key=new BASE64Decoder().decodeBuffer("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4"); */ byte[] key=new BASE64Decoder().decodeBuffer("YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4"); byte[] keyiv = { 1, 2, 3, 4, 5, 6, 7, 8 }; byte[] data="中国ABCabc123".getBytes("UTF-8"); System.out.println("ECB加密解密"); byte[] str3 = des3EncodeECB(key,data ); byte[] str4 = ees3DecodeECB(key, str3); System.out.println(new BASE64Encoder().encode(str3)); System.out.println(new String(str4, "UTF-8")); System.out.println(); System.out.println("CBC加密解密"); byte[] str5 = des3EncodeCBC(key, keyiv, data); byte[] str6 = des3DecodeCBC(key, keyiv, str5); System.out.println(new BASE64Encoder().encode(str5)); System.out.println(new String(str6, "UTF-8")); } /** * ECB加密,不要IV * @param key 密钥 * @param data 明文 * @return Base64编码的密文 * @throws Exception */ public static byte[] des3EncodeECB(byte[] key, byte[] data) throws Exception { Key deskey = null; DESedeKeySpec spec = new DESedeKeySpec(key); SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede"); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, deskey); byte[] bOut = cipher.doFinal(data); return bOut; } /** * ECB解密,不要IV * @param key 密钥 * @param data Base64编码的密文 * @return 明文 * @throws Exception */ public static byte[] ees3DecodeECB(byte[] key, byte[] data) throws Exception { Key deskey = null; DESedeKeySpec spec = new DESedeKeySpec(key); SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede"); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/ECB/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, deskey); byte[] bOut = cipher.doFinal(data); return bOut; } /** * CBC加密 * @param key 密钥 * @param keyiv IV * @param data 明文 * @return Base64编码的密文 * @throws Exception */ public static byte[] des3EncodeCBC(byte[] key, byte[] keyiv, byte[] data) throws Exception { Key deskey = null; DESedeKeySpec spec = new DESedeKeySpec(key); SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede"); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding"); IvParameterSpec ips = new IvParameterSpec(keyiv); cipher.init(Cipher.ENCRYPT_MODE, deskey, ips); byte[] bOut = cipher.doFinal(data); return bOut; } /** * CBC解密 * @param key 密钥 * @param keyiv IV * @param data Base64编码的密文 * @return 明文 * @throws Exception */ public static byte[] des3DecodeCBC(byte[] key, byte[] keyiv, byte[] data) throws Exception { Key deskey = null; DESedeKeySpec spec = new DESedeKeySpec(key); SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede"); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance("desede" + "/CBC/PKCS5Padding"); IvParameterSpec ips = new IvParameterSpec(keyiv); cipher.init(Cipher.DECRYPT_MODE, deskey, ips); byte[] bOut = cipher.doFinal(data); return bOut; } }
NET版本：（只有ECS）
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; using System.Threading.Tasks; using System.Security.Cryptography; namespace Rongzi.ToolKits.Core.HBJR { public class EncodeUtil { /** * ECB加密,不要IV * @param key 密钥 * @param data 明文 * @return Base64编码的密文 * @throws Exception */ public static byte[] des3EncodeECB(byte[] key, byte[] data) { // Create a MemoryStream. MemoryStream mStream = new MemoryStream(); TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider(); tdsp.Mode = CipherMode.ECB; tdsp.Padding = PaddingMode.PKCS7; // Create a CryptoStream using the MemoryStream // and the passed key and initialization vector (IV). CryptoStream cStream = new CryptoStream(mStream, tdsp.CreateEncryptor(key, null), CryptoStreamMode.Write); // Write the byte array to the crypto stream and flush it. cStream.Write(data, 0, data.Length); cStream.FlushFinalBlock(); // Get an array of bytes from the // MemoryStream that holds the // encrypted data. byte[] ret = mStream.ToArray(); // Close the streams. cStream.Close(); mStream.Close(); // Return the encrypted buffer. return ret; } /** * ECB解密,不要IV * @param key 密钥 * @param data Base64编码的密文 * @return 明文 * @throws Exception */ public static byte[] ees3DecodeECB(byte[] key, byte[] data) { try { // Create a new MemoryStream using the passed // array of encrypted data. MemoryStream msDecrypt = new MemoryStream(data); TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider(); tdsp.Mode = CipherMode.ECB; tdsp.Padding = PaddingMode.PKCS7; // Create a CryptoStream using the MemoryStream // and the passed key and initialization vector (IV). CryptoStream csDecrypt = new CryptoStream(msDecrypt, tdsp.CreateDecryptor(key, null), CryptoStreamMode.Read); // Create buffer to hold the decrypted data. byte[] fromEncrypt = new byte[data.Length]; // Read the decrypted data out of the crypto stream // and place it into the temporary buffer. csDecrypt.Read(fromEncrypt, 0, fromEncrypt.Length); //Convert the buffer into a string and return it. return fromEncrypt; } catch (CryptographicException e) { Console.WriteLine("A Cryptographic error occurred: {0}", e.Message); return null; } } } }
http://yilinliu.blogspot.hk/2010/07/c-java-net-descryptoserviceprovider-vs.html
http://www.cnblogs.com/liluping860122/p/4026015.html
http://www.cnblogs.com/AloneSword/archive/2013/12/11/3469219.html