AES加密解密&&SHA1、SHA加密&&MD5加密

<code class="hljs java has-numbering" style="display: block; padding: 0px; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background: transparent;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">package</span> com.luo.util;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> java.io.UnsupportedEncodingException;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> java.security.InvalidKeyException;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> java.security.MessageDigest;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> java.security.NoSuchAlgorithmException;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> java.security.SecureRandom;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> javax.crypto.BadPaddingException;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> javax.crypto.Cipher;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> javax.crypto.IllegalBlockSizeException;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> javax.crypto.KeyGenerator;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> javax.crypto.NoSuchPaddingException;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> javax.crypto.SecretKey;
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">import</span> javax.crypto.spec.SecretKeySpec;

<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> <span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">class</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">DecriptUtil</span> {</span>

<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/**
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @author</span>：罗国辉
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @date</span>： 2015年12月17日 上午9:16:22
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @description</span>： AES加密
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @parameter</span>： str：待加密字符串，secretKeyBase：用于生成密钥的基础字符串
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @return</span>：  加密字节数组
**/</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">static</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">byte</span>[] <span class="hljs-title" style="box-sizing: border-box;">encryptAES</span>(String str, String secretKeyBase) {
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">try</span> {
KeyGenerator kgen = KeyGenerator.getInstance(<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"AES"</span>);
kgen.init(<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">128</span>, <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">new</span> SecureRandom(secretKeyBase.getBytes()));
SecretKey secretKey = kgen.generateKey();
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">byte</span>[] enCodeFormat = secretKey.getEncoded();
SecretKeySpec key = <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">new</span> SecretKeySpec(enCodeFormat, <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"AES"</span>);
Cipher cipher = Cipher.getInstance(<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"AES"</span>);<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 创建密码器</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">byte</span>[] byteContent = str.getBytes(<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"UTF-8"</span>);
cipher.init(Cipher.ENCRYPT_MODE, key);<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 初始化</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">byte</span>[] result = cipher.doFinal(byteContent);
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> result; <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 加密</span>
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (NoSuchAlgorithmException e) {
e.printStackTrace();
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (NoSuchPaddingException e) {
e.printStackTrace();
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (InvalidKeyException e) {
e.printStackTrace();
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (UnsupportedEncodingException e) {
e.printStackTrace();
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (IllegalBlockSizeException e) {
e.printStackTrace();
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (BadPaddingException e) {
e.printStackTrace();
}
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">null</span>;
}

<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/**
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @author</span>：罗国辉
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @date</span>： 2015年12月17日 上午9:16:22
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @description</span>： AES解密
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @parameter</span>： strByteArray：待解密字节数组，
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @parameter</span>： secretKeyBase：用于生成密钥的基础字符串， 需要注意的是EAS是对称加密，所以secretKeyBase在加密解密时要一样的
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @return</span>：  解密后字符串
**/</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">static</span> String <span class="hljs-title" style="box-sizing: border-box;">decryptAES</span>(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">byte</span>[] strByteArray, String secretKeyBase) {
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">try</span> {
KeyGenerator kgen = KeyGenerator.getInstance(<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"AES"</span>);
kgen.init(<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">128</span>, <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">new</span> SecureRandom(secretKeyBase.getBytes()));
SecretKey secretKey = kgen.generateKey();
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">byte</span>[] enCodeFormat = secretKey.getEncoded();
SecretKeySpec key = <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">new</span> SecretKeySpec(enCodeFormat, <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"AES"</span>);
Cipher cipher = Cipher.getInstance(<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"AES"</span>);<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 创建密码器</span>
cipher.init(Cipher.DECRYPT_MODE, key);<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 初始化</span>
String result = <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">new</span> String(cipher.doFinal(strByteArray),<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"UTF-8"</span>);
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> result; <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 加密</span>
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (NoSuchAlgorithmException e) {
e.printStackTrace();
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (NoSuchPaddingException e) {
e.printStackTrace();
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (InvalidKeyException e) {
e.printStackTrace();
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (IllegalBlockSizeException e) {
e.printStackTrace();
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (BadPaddingException e) {
e.printStackTrace();
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (UnsupportedEncodingException e) {
e.printStackTrace();
}
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">null</span>;
}

<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/**
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @author</span>：罗国辉
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @date</span>： 2015年12月17日 上午9:24:43
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @description</span>： SHA、SHA1加密
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @parameter</span>：   str：待加密字符串
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @return</span>：  加密串
**/</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">static</span> String <span class="hljs-title" style="box-sizing: border-box;">SHA1</span>(String str) {
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">try</span> {
MessageDigest digest = java.security.MessageDigest
.getInstance(<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"SHA-1"</span>); <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">//如果是SHA加密只需要将"SHA-1"改成"SHA"即可</span>
digest.update(str.getBytes());
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">byte</span> messageDigest[] = digest.digest();
<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// Create Hex String</span>
StringBuffer hexStr = <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">new</span> StringBuffer();
<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 字节数组转换为 十六进制 数</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">for</span> (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> i = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>; i < messageDigest.length; i++) {
String shaHex = Integer.toHexString(messageDigest[i] & <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0xFF</span>);
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span> (shaHex.length() < <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2</span>) {
hexStr.append(<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>);
}
hexStr.append(shaHex);
}
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> hexStr.toString();

} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (NoSuchAlgorithmException e) {
e.printStackTrace();
}
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">null</span>;
}

<span class="hljs-javadoc" style="color: rgb(136, 0, 0); box-sizing: border-box;">/**
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @author</span>：罗国辉
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @date</span>： 2015年12月17日 上午9:24:43
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @description</span>： MD5加密
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @parameter</span>：   str：待加密字符串
*<span class="hljs-javadoctag" style="color: rgb(102, 0, 102); box-sizing: border-box;"> @return</span>：  加密串
**/</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">public</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">static</span> String <span class="hljs-title" style="box-sizing: border-box;">MD5</span>(String str) {
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">try</span> {
<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 获得MD5摘要算法的 MessageDigest 对象</span>
MessageDigest mdInst = MessageDigest.getInstance(<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"MD5"</span>);
<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 使用指定的字节更新摘要</span>
mdInst.update(str.getBytes());
<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 获得密文</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">byte</span>[] md = mdInst.digest();
<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 把密文转换成十六进制的字符串形式</span>
StringBuffer hexString = <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">new</span> StringBuffer();
<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 字节数组转换为 十六进制 数</span>
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">for</span> (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">int</span> i = <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>; i < md.length; i++) {
String shaHex = Integer.toHexString(md[i] & <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0xFF</span>);
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span> (shaHex.length() < <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2</span>) {
hexString.append(<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0</span>);
}
hexString.append(shaHex);
}
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> hexString.toString();
} <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">catch</span> (NoSuchAlgorithmException e) {
e.printStackTrace();
}
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">null</span>;
}

}</code>