android平台下的aes加密和java平台下的运行结果不同的解决办法

实现Android和java互相加解密

完美支持中文

跨平台这种实现

还是一个原则

不要对参数采用默认实现

否则难以互通

核心函数如下，Android和java均如此

public static final String VIPARA = "0102030405060708";public static final String bm = "GBK";

public static String encrypt(String dataPassword, String cleartext)throws Exception {IvParameterSpec zeroIv = new IvParameterSpec(VIPARA.getBytes());SecretKeySpec key = new SecretKeySpec(dataPassword.getBytes(), "AES");Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv);byte[] encryptedData = cipher.doFinal(cleartext.getBytes(bm));return Base64.encode(encryptedData);}public static String decrypt(String dataPassword, String encrypted)throws Exception {byte[] byteMi = Base64.decode(encrypted);IvParameterSpec zeroIv = new IvParameterSpec(VIPARA.getBytes());SecretKeySpec key = new SecretKeySpec(dataPassword.getBytes(), "AES");Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");cipher.init(Cipher.DECRYPT_MODE, key, zeroIv);byte[] decryptedData = cipher.doFinal(byteMi);return new String(decryptedData,bm);}

Base64从网上找的工具类

package com.bao;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.OutputStream;public class Base64 {private static final char[] legalChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".toCharArray();/** * data[]进行编码 * @param data * @return */    public static String encode(byte[] data) {        int start = 0;        int len = data.length;        StringBuffer buf = new StringBuffer(data.length * 3 / 2);        int end = len - 3;        int i = start;        int n = 0;        while (i <= end) {            int d = ((((int) data[i]) & 0x0ff) << 16)                    | ((((int) data[i + 1]) & 0x0ff) << 8)                    | (((int) data[i + 2]) & 0x0ff);            buf.append(legalChars[(d >> 18) & 63]);            buf.append(legalChars[(d >> 12) & 63]);            buf.append(legalChars[(d >> 6) & 63]);            buf.append(legalChars[d & 63]);            i += 3;            if (n++ >= 14) {                n = 0;                buf.append(" ");            }        }        if (i == start + len - 2) {            int d = ((((int) data[i]) & 0x0ff) << 16)                    | ((((int) data[i + 1]) & 255) << 8);            buf.append(legalChars[(d >> 18) & 63]);            buf.append(legalChars[(d >> 12) & 63]);            buf.append(legalChars[(d >> 6) & 63]);            buf.append("=");        } else if (i == start + len - 1) {            int d = (((int) data[i]) & 0x0ff) << 16;            buf.append(legalChars[(d >> 18) & 63]);            buf.append(legalChars[(d >> 12) & 63]);            buf.append("==");        }        return buf.toString();    }    private static int decode(char c) {        if (c >= 'A' && c <= 'Z')            return ((int) c) - 65;        else if (c >= 'a' && c <= 'z')            return ((int) c) - 97 + 26;        else if (c >= '0' && c <= '9')            return ((int) c) - 48 + 26 + 26;        else            switch (c) {            case '+':                return 62;            case '/':                return 63;            case '=':                return 0;            default:                throw new RuntimeException("unexpected code: " + c);            }    }    /**     * Decodes the given Base64 encoded String to a new byte array. The byte     * array holding the decoded data is returned.     */    public static byte[] decode(String s) {        ByteArrayOutputStream bos = new ByteArrayOutputStream();        try {            decode(s, bos);        } catch (IOException e) {            throw new RuntimeException();        }        byte[] decodedBytes = bos.toByteArray();        try {            bos.close();            bos = null;        } catch (IOException ex) {            System.err.println("Error while decoding BASE64: " + ex.toString());        }        return decodedBytes;    }    private static void decode(String s, OutputStream os) throws IOException {        int i = 0;        int len = s.length();        while (true) {            while (i < len && s.charAt(i) <= ' ')                i++;            if (i == len)                break;            int tri = (decode(s.charAt(i)) << 18)                    + (decode(s.charAt(i + 1)) << 12)                    + (decode(s.charAt(i + 2)) << 6)                    + (decode(s.charAt(i + 3)));            os.write((tri >> 16) & 255);            if (s.charAt(i + 2) == '=')                break;            os.write((tri >> 8) & 255);            if (s.charAt(i + 3) == '=')                break;            os.write(tri & 255);            i += 4;        }    }    }

对于具体参数的意义

AES 加密及兼容参看 http://blog.csdn.net/ustcxjt/article/details/7440564

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