一个aes加密的问题

Hwak · 发表于 2015-3-15 12:13:16

package comAES;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
public class AES {
private static byte[] a = new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,0, 0, 0, 0 };;
public static final byte[] encrypt256(String paramString1, String paramString2)
{
try
{
byte[] arrayOfByte2 = paramString2.getBytes("UTF-8");
IvParameterSpec localIvParameterSpec = new IvParameterSpec(a);
SecretKeySpec localSecretKeySpec = new SecretKeySpec(paramString1.getBytes("UTF-8"), "AES");
Cipher localCipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
localCipher.init(1, localSecretKeySpec, localIvParameterSpec);
byte[] arrayOfByte3 = localCipher.doFinal(arrayOfByte2);
byte[] arrayOfByte1 = arrayOfByte3;
return arrayOfByte1;
}
catch (Exception localException)
{
while (true)
{
localException.printStackTrace();
byte[] arrayOfByte1 = null;
}
}
}
public static final String encrypt256Base64String(String paramString1, String paramString2)
{
byte[] arrayOfByte = encrypt256(paramString1, paramString2);
if (arrayOfByte != null);
String str = Base64.encode(arrayOfByte);
return str;
}
public static void main(String[] args)throws Exception{
String str="zxc123456";
String str2="NXFmQPiPMuchITFiNXFmQPiPMuchITFi";
String str3=encrypt256Base64String(str2,str);
System.out.println(str3);
}
}
class Base64 {
private static final char[] legalChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".toCharArray();
/**
* data[]进行编码
* [url=home.php?mod=space&uid=275307]@param[/url] data
* [url=home.php?mod=space&uid=161696]@Return[/url]
*/
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;
}
}
}

复制代码

Hoibben · 发表于 2015-3-15 20:05:13

米和饭发表于 2015-3-15 19:09
我也搞定了字节集iv的问题了

你这样让我好失落啊~

Hoibben · 发表于 2015-3-15 19:21:37

米和饭发表于 2015-3-15 19:09
我也搞定了字节集iv的问题了

快发我

屎加豆 · 发表于 2015-3-15 19:09:11

ctw507 发表于 2015-3-15 19:02
js.

我也搞定了字节集iv的问题了

Hwak · 发表于 2015-3-15 19:02:47

米和饭发表于 2015-3-15 19:00
不要告诉我，又是jar。。。。。

js.

屎加豆 · 发表于 2015-3-15 19:00:47

ctw507 发表于 2015-3-15 18:52
三个字想要得美丽

不要告诉我，又是jar。。。。。

Hwak · 发表于 2015-3-15 18:52:52

Hoibben 发表于 2015-3-15 18:37
傻逼小宇快发我~

三个字想要得美丽

Hoibben · 发表于 2015-3-15 18:37:32

ctw507 发表于 2015-3-15 16:53
一百块都不给你自己已经搞定

傻逼小宇快发我~

Hwak · 发表于 2015-3-15 16:53:24

hmlyn 发表于 2015-3-15 16:44
500给你搞定

一百块都不给你自己已经搞定

hmlyn · 发表于 2015-3-15 16:44:40

500给你搞定

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