本项目是对String串进行AES -128-CBC，然后进行了BASE64编码。遗憾的是 解密部分一直报错。。没有解密代码
packagecom.example.sunlei.demoaes.utils;importjava.util.Arrays;importjavax.crypto.Cipher;importjavax.crypto.spec.IvParameterSpec;importjavax.crypto.spec.SecretKeySpec;/***@authorsunlei*@create/7/5*@Describe*/public classAES128 {//AES-128-CBC加密public staticString encryptsss(String key, String initVector, String value) {try{IvParameterSpec iv =newIvParameterSpec(initVector.getBytes("UTF-8"));SecretKeySpec skeySpec =newSecretKeySpec(key.getBytes("UTF-8"),"AES");Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);byte[] encrypted = cipher.doFinal(value.getBytes());//System.out.println("encrypted string: " + Base64.getEncoder().encodeToString(encrypted));return newString(encrypted);// return Base64.encode(encrypted);}catch(Exception ex) {ex.printStackTrace();}return null;}}
上面是加密算法。
packagecom.example.sunlei.demoaes.utils;importjava.io.ByteArrayOutputStream;public classBase64 {private static char[]base64EncodeChars=new char[] {'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','0','1','2','3','4','5','6','7','8','9','+','/'};private static byte[]base64DecodeChars=new byte[] { -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, 62, -1, -1, -1, 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, -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, -1, -1,-1, -1, -1 };public static byte[] decode(String str) {byte[] data = str.getBytes();intlen = data.length;ByteArrayOutputStream buf =newByteArrayOutputStream(len);inti = 0;intb1, b2, b3, b4;while(i < len) {/* b1 */do{b1 =base64DecodeChars[data[i++]];}while(i < len && b1 == -1);if(b1 == -1) {break;}/* b2 */do{b2 =base64DecodeChars[data[i++]];}while(i < len && b2 == -1);if(b2 == -1) {break;}buf.write(b1 << 2 | (b2 & 0x30) >>> 4);/* b3 */do{b3 = data[i++];if(b3 == 61) {returnbuf.toByteArray();}b3 =base64DecodeChars[b3];}while(i < len && b3 == -1);if(b3 == -1) {break;}buf.write((b2 & 0x0f) << 4 | (b3 & 0x3c) >>> 2);/* b4 */do{b4 = data[i++];if(b4 == 61) {returnbuf.toByteArray();}b4 =base64DecodeChars[b4];}while(i < len && b4 == -1);if(b4 == -1) {break;}buf.write((b3 & 0x03) << 6 | b4);}returnbuf.toByteArray();}public staticString encode(byte[] data) {StringBuffer sb =newStringBuffer();intlen = data.length;inti = 0;intb1, b2, b3;while(i < len) {b1 = data[i++] & 0xff;if(i == len) {sb.append(base64EncodeChars[b1 >>> 2]);sb.append(base64EncodeChars[(b1 & 0x3) << 4]);sb.append("==");break;}b2 = data[i++] & 0xff;if(i == len) {sb.append(base64EncodeChars[b1 >>> 2]);sb.append(base64EncodeChars[(b1 & 0x03) << 4 | (b2 & 0xf0) >>> 4]);sb.append(base64EncodeChars[(b2 & 0x0f) << 2]);sb.append("=");break;}b3 = data[i++] & 0xff;sb.append(base64EncodeChars[b1 >>> 2]);sb.append(base64EncodeChars[(b1 & 0x03) << 4 | (b2 & 0xf0) >>> 4]);sb.append(base64EncodeChars[(b2 & 0x0f) << 2 | (b3 & 0xc0) >>> 6]);sb.append(base64EncodeChars[b3 & 0x3f]);}returnsb.toString();}privateBase64() {}}
上面是Base64 加密 解密 算法。
最后附上 csdn demo 地址
/download/a872822645/105311
37 点击跳转
