package com.awifi.cloudnative.container.common.utils; import java.io.UnsupportedEncodingException; import java.security.SecureRandom; import java.util.Random; import javax.crypto.Cipher; import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.SecretKeySpec; import com.awifi.cloudnative.container.common.content.ErrorConstants; import com.awifi.cloudnative.container.common.exception.BaseException; import org.apache.tomcat.util.codec.binary.Base64; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class AESUtil {
private static final Logger LOG = LoggerFactory.getLogger(AESUtil.
class
)
;
public
static
final
String CODE_TYPE
=
"UTF-8"
;
//public static final String CODE_TYPE = "gb2312";
public
static
final
String AES_TYPE
=
"AES/ECB/NoPadding"
;
private
static
final
String ENCRYPTION
=
"AES"
;
private
static
final
String IV
=
"0000000000000000"
;
public
static
String
getKey
(
)
{
Random random
=
new
SecureRandom
(
)
;
StringBuilder sb
=
new
StringBuilder
(
)
;
for
(
int i
=
0
; i
<
16
; i
++
)
{
int number
= random
.
nextInt
(
3
)
;
long result
=
0
;
switch
(number
)
{
case
0
: result
=
Math
.
round
(
new
SecureRandom
(
)
.
nextInt
(
25
)
+
65
)
; sb
.
append
(
(
char
) result
)
;
break
;
case
1
: result
=
Math
.
round
(
new
SecureRandom
(
)
.
nextInt
(
25
)
+
97
)
; sb
.
append
(
String
.
valueOf
(
(
char
) result
)
)
;
break
;
case
2
: sb
.
append
(
String
.
valueOf
(
new
SecureRandom
(
)
.
nextInt
(
10
)
)
)
;
break
;
}
}
// sb.append("123456789012345");
// sb.append("\0");
return sb
.
toString
(
)
;
}
// public static void main(String args[]) {
// //生成15位字符串
// String key = "yju5pH2e8yo6947F";
// System.out.println("aes秘钥：" + key);
// String sign = "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";
// System.out.println(decrypt(sign, key));
// String str = "{\"errorCode\":\"0\",\"errorMsg\":\"成功\"}";
// sign = encrypt(str, key);
// System.out.println("加密后：" + sign);
// System.out.println("解密后：" + decrypt(sign, key));
// }
public
AESUtil
(
)
{
}
/** * aes加密 * * @param cleartext 待加密串 * @param key * @return base64后的加密串 */
public
static
String
encrypt
(
String cleartext
,
String password
)
{
try
{
password
=
appendZero2Password
(password
)
;
byte
[
] str
= cleartext
.
getBytes
(CODE_TYPE
)
; str
=
completionCodeFor16Bytes
(str
)
;
Cipher cipher
=
Cipher
.
getInstance
(AES_TYPE
)
;
SecretKeySpec key
=
new
SecretKeySpec
(password
.
getBytes
(
)
, ENCRYPTION
)
;
// IvParameterSpec iv = new IvParameterSpec(IV.getBytes());
//cipher.init(Cipher.ENCRYPT_MODE, key, vi); cipher
.
init
(
Cipher
.ENCRYPT_MODE
, key
)
;
byte
[
] encryptedData
= cipher
.
doFinal
(str
)
;
String sign
=
Base64
.
encodeBase64String
(encryptedData
)
; LOG
.
debug
(
"加密后的字符串：{}"
, sign
)
;
return sign
;
}
catch
(
Exception e
)
{
LOG
.
error
(
"AES加密失败"
, e
)
;
throw
new
BaseException
(
ErrorConstants
.ERR_EXCEPTION_000
,
"AES加密失败"
)
;
}
// Pointer pointer = aesecb();
/* byte[] dst = new byte[200]; Object object = aesecb(dst); System.out.println("pointer:" + object.getClass() + "*******"); return aesecb(dst) + ""; return Base64.encodeBase64String(cleartext.getBytes());*/
}
/** * Aes解密 * * @param encrypted 待解密串 * @param key * @return 原始数据 */
public
static
String
decrypt
(
String encrypted
,
String password
)
{
try
{
password
=
appendZero2Password
(password
)
;
byte
[
] byteMi
=
Base64
.
decodeBase64
(encrypted
)
; byteMi
=
completionCodeFor16Bytes
(byteMi
)
;
SecretKeySpec key
=
new
SecretKeySpec
(password
.
getBytes
(
)
, ENCRYPTION
)
;
Cipher cipher
=
Cipher
.
getInstance
(AES_TYPE
)
;
IvParameterSpec iv
=
new
IvParameterSpec
(IV
.
getBytes
(
)
)
;
// cipher.init(Cipher.DECRYPT_MODE, key, iv); cipher
.
init
(
Cipher
.DECRYPT_MODE
, key
)
;
byte
[
] decryptedData
= cipher
.
doFinal
(byteMi
)
;
return
new
String
(decryptedData
,
"utf-8"
)
.
trim
(
)
;
}
catch
(
Exception e
)
{
LOG
.
error
(
"AES解密失败"
+ e
.
getMessage
(
)
)
;
throw
new
BaseException
(
ErrorConstants
.ERR_EXCEPTION_000
,
"AES解密失败"
)
;
}
/* byte[] byteMi = Base64.decodeBase64(encrypted); byte[] dst = new byte[200]; return aesecb(dst) + ""; byte[] decryptedData = Base64.decodeBase64(encrypted); return new String(decryptedData).trim();*/
}
/** * mod16位补全 * * @param str 待加密串 * @return 补全待加密串 * @throws UnsupportedEncodingException 异常 */
public
static
byte
[
]
completionCodeFor16Bytes
(
byte
[
] str
)
throws
UnsupportedEncodingException
{
int num
= str
.length
;
int index
=
16
- num
%
16
;
if
(index
==
16
)
{
return str
;
}
byte
[
] newStr
=
new
byte
[str
.length
+ index
]
;
System
.
arraycopy
(str
,
0
, newStr
,
0
, str
.length
)
;
return newStr
;
}
/** * mod8位补全 * * @param str 待加密串 * @return 补全待加密串 * @throws UnsupportedEncodingException 异常 */
public
static
byte
[
]
completionCodeFor4Bytes
(
byte
[
] str
)
throws
UnsupportedEncodingException
{
int num
= str
.length
;
int index
=
4
- num
%
4
;
if
(index
==
4
)
{
return str
;
}
byte
[
] newStr
=
new
byte
[str
.length
+ index
]
;
System
.
arraycopy
(str
,
0
, newStr
,
0
, str
.length
)
;
return newStr
;
}
/** * 检验密钥并补全 \0 * * @return String * @throws * @author 范涌涛 * @date 2020-05-12 15:22:34 */
private
static
String
appendZero2Password
(
String password
)
{
if
(
null
== password
)
{
LOG
.
error
(
"AES密钥长度错误"
)
;
throw
new
BaseException
(
ErrorConstants
.INNER_EXCEPTION_010
,
"AES密钥长度错误"
)
;
}
if
(password
.
length
(
)
==
16
)
{
return password
;
}
StringBuilder sbBuilder
=
new
StringBuilder
(password
)
; sbBuilder
.
append
(
"\0"
)
;
return sbBuilder
.
toString
(
)
;
}
/** 宽带账号解密 * 解密方法 * @param data 要解密的数据 * @param key 解密key * @param iv 解密iv * @return 解密的结果 * @throws Exception */
public
static
String
AccountdesEncrypt
(
String data
,
String key
,
String iv
)
{
try
{
byte
[
] encrypted1
=
new
Base64
(
)
.
decode
(data
)
;
Cipher cipher
=
Cipher
.
getInstance
(
"AES/CBC/NoPadding"
)
;
SecretKeySpec keyspec
=
new
SecretKeySpec
(key
.
getBytes
(
)
,
"AES"
)
;
IvParameterSpec ivspec
=
new
IvParameterSpec
(iv
.
getBytes
(
)
)
; cipher
.
init
(
Cipher
.DECRYPT_MODE
, keyspec
, ivspec
)
;
byte
[
] original
= cipher
.
doFinal
(encrypted1
)
;
String originalString
=
new
String
(original
)
;
return originalString
.
trim
(
)
;
}
catch
(
Exception e
)
{
e
.
printStackTrace
(
)
;
return
null
;
}
}
}