java源代码加密+使用proguard混淆java web项目代码+自定义Classloader
如何保护我们的源代码,实际上,应该有几种方法可以使用:1、使用代码混淆器 2、重载应用服务器的classloader
使用代码混淆器proguard进行代码混淆
1.首先下载proGuard.zip到本地: proguard4.5beta4.tar.zip解压开,
2.新建文本文档,修改文件名为XXX.pro,然后复制下面内容到.pro
-injars 'Y:\src.jar' #需要混淆的jar -outjars 'Y:\java\src.jar' #输出jar -libraryjars 'C:\java\jre6\lib\rt.jar' #必须的系统类库 -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\activation-1.1.jar' #项目需要的jar -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\ant.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\antlr-2.7.6.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\asm-attrs.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\asm.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\aspectjrt.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\aspectjweaver.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\axis-ant.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\axis.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\backport-util-concurrent.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\bsf-2.3.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\bsh-2.0b4.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\c3p0-0.9.1.2.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\cfgatewayadapter.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\cglib-2.1.3.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\ckeditor-java-core-3.5.3.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\CKFinder-2.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\CKFinderPlugin-FileEditor-2.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\CKFinderPlugin-ImageResize-2.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\cmpp3.0-java.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-attributes-api.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-attributes-compiler.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-beanutils-1.8.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-codec-1.3.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-collections-3.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-configuration-1.6.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-dbcp-1.2.2.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-discovery-0.2.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-fileupload-1.2.2.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-io-2.0.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-lang-2.3.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-logging-1.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-logging-api-1.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-pool.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\commons-validator-1.3.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\concurrent.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\dom4j-1.6.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\dwr.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\ehcache-1.5.0.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\ejb3-persistence.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\fckeditor-java-core-2.4.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\freemarker-2.3.15.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\generic-hession-api-0109.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\gson-1.7.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\hessian-4.0.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\hibernate-annotations.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\hibernate-commons-annotations.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\hibernate-entitymanager.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\hibernate-validator.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\hibernate3.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\im4java-1.3.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jackson-core-asl-1.3.0.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jackson-mapper-asl-1.3.0.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jakarta-oro-2.0.8.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\Java2Word.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\javassist-3.4.GA.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jaxrpc.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jboss-archive-browsing.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jdbc2_0-stdext.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jdom.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jetty-6.1.24.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jetty-plus-6.1.24.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jetty-util-6.1.24.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jsf-api.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jsf-impl.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\json-lib-2.3-jdk15.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\json_simple-1.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jstl-1.2.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jstl-api-1.2.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jstl-impl-1.2.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jta.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\jtds-1.2.2.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\junit.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\log4j-1.2.15.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\mail-1.4.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\mysql-connector-java-5.1.22-bin.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\ognl-2.7.3.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\ojdbc5.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\p6spy.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\pager-taglib.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\poi-3.6-20091214.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\quartz-all-1.6.6.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\servlet-api-2.5-20081211.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\SimpleAPI.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\sitemesh-2.3.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\slf4j-api-1.5.8.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\slf4j-log4j12-1.5.8.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\spring.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\standard.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\struts2-core-2.1.8.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\struts2-dojo-plugin-2.1.8.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\struts2-json-plugin-2.3.1.2.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\struts2-sitemesh-plugin-2.1.8.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\struts2-spring-plugin-2.1.8.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\struts2-sunspoter-stream-1.0.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\Thumbnailator-0.3.10.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\urlrewrite-2.6.0.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\velocity-1.7.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\velocity-tools-2.0.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\wsdl4j-1.5.1.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\xalan.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\xstream-1.2.2.jar' -libraryjars 'Y:\kf\WebRoot\WEB-INF\lib\xwork-core-2.1.6.jar'-dontskipnonpubliclibraryclassmembers -target 1.5 -dontshrink -dontoptimize -useuniqueclassmembernames -keeppackagenames -keepattributes Exceptions,InnerClasses,Signature,Deprecated,SourceFile,LineNumberTable,LocalVariable*Table,*Annotation*,Synthetic,EnclosingMethod -keepparameternames -dontpreverify -dontwarn -ignorewarnings #不混淆lib下jar包里面的class文件 -keep class WebRoot.WEB-INFO.lib.*
#不混淆action包里面的类名,字段名,方法名 #在界面上会用到这些字段和getset方法 -keepnames class **.action.**{public private protected <fields>;public <methods>; } -keepnames class **.dao.**{ } -keepnames class **.service.**{ }-keep class * extends org.springframework.orm.hibernate3.support.HibernateDaoSupport {public <methods>; } #不混淆实体的字段和方法,jsp的表单里面会有这些属性的值,混淆之后,会出现无法提交表单情况 -keep class **.domain.** {public private protected <fields>;public <methods>; }# Keep names - Native method names. Keep all native class/method names. -keepclasseswithmembers,allowshrinking class * {native <methods>; } # Keep names - _class method names. Keep all .class method names. This may be # useful for libraries that will be obfuscated again with different obfuscators. -keepclassmembers,allowshrinking class * {java.lang.Class class$(java.lang.String);java.lang.Class class$(java.lang.String,boolean); } # Remove - System method calls. Remove all invocations of System # methods without side effects whose return values are not used. -assumenosideeffects public class java.lang.System {public static long currentTimeMillis();static java.lang.Class getCallerClass();public static int identityHashCode(java.lang.Object);public static java.lang.SecurityManager getSecurityManager();public static java.util.Properties getProperties();public static java.lang.String getProperty(java.lang.String);public static java.lang.String getenv(java.lang.String);public static java.lang.String mapLibraryName(java.lang.String);public static java.lang.String getProperty(java.lang.String,java.lang.String); } # Remove - Math method calls. Remove all invocations of Math # methods without side effects whose return values are not used. -assumenosideeffects public class java.lang.Math { public static double sin(double); public static double cos(double); public static double tan(double); public static double asin(double); public static double acos(double); public static double atan(double); public static double toRadians(double); public static double toDegrees(double); public static double exp(double); public static double log(double); public static double log10(double); public static double sqrt(double);public static double cbrt(double);public static double IEEEremainder(double,double); public static double ceil(double); public static double floor(double); public static double rint(double); public static double atan2(double,double); public static double pow(double,double); public static int round(float); public static long round(double); public static double random(); public static int abs(int); public static long abs(long); public static float abs(float); public static double abs(double); public static int max(int,int); public static long max(long,long); public static float max(float,float); public static double max(double,double); public static int min(int,int); public static long min(long,long); public static float min(float,float); public static double min(double,double); public static double ulp(double); public static float ulp(float); public static double signum(double); public static float signum(float); public static double sinh(double); public static double cosh(double); public static double tanh(double); public static double hypot(double,double); public static double expm1(double); public static double log1p(double); }# Remove - Number method calls. Remove all invocations of Number # methods without side effects whose return values are not used. -assumenosideeffects public class java.lang.* extends java.lang.Number { public static java.lang.String toString(byte); public static java.lang.Byte valueOf(byte); public static byte parseByte(java.lang.String); public static byte parseByte(java.lang.String,int); public static java.lang.Byte valueOf(java.lang.String,int); public static java.lang.Byte valueOf(java.lang.String); public static java.lang.Byte decode(java.lang.String);public int compareTo(java.lang.Byte); public static java.lang.String toString(short); public static short parseShort(java.lang.String); public static short parseShort(java.lang.String,int); public static java.lang.Short valueOf(java.lang.String,int); public static java.lang.Short valueOf(java.lang.String); public static java.lang.Short valueOf(short); public static java.lang.Short decode(java.lang.String); public static short reverseBytes(short); public int compareTo(java.lang.Short); public static java.lang.String toString(int,int); public static java.lang.String toHexString(int); public static java.lang.String toOctalString(int); public static java.lang.String toBinaryString(int); public static java.lang.String toString(int); public static int parseInt(java.lang.String,int); public static int parseInt(java.lang.String);public static java.lang.Integer valueOf(java.lang.String,int); public static java.lang.Integer valueOf(java.lang.String); public static java.lang.Integer valueOf(int);public static java.lang.Integer getInteger(java.lang.String); public static java.lang.Integer getInteger(java.lang.String,int);public static java.lang.Integer getInteger(java.lang.String,java.lang.Integer); public static java.lang.Integer decode(java.lang.String);public static int highestOneBit(int); public static int lowestOneBit(int);public static int numberOfLeadingZeros(int); public static int numberOfTrailingZeros(int); public static int bitCount(int); public static int rotateLeft(int,int); public static int rotateRight(int,int); public static int reverse(int); public static int signum(int); public static int reverseBytes(int); public int compareTo(java.lang.Integer); public static java.lang.String toString(long,int); public static java.lang.String toHexString(long); public static java.lang.String toOctalString(long); public static java.lang.String toBinaryString(long); public static java.lang.String toString(long); public static long parseLong(java.lang.String,int); public static long parseLong(java.lang.String);public static java.lang.Long valueOf(java.lang.String,int); public static java.lang.Long valueOf(java.lang.String);public static java.lang.Long valueOf(long);public static java.lang.Long decode(java.lang.String); public static java.lang.Long getLong(java.lang.String); public static java.lang.Long getLong(java.lang.String,long);public static java.lang.Long getLong(java.lang.String,java.lang.Long); public static long highestOneBit(long); public static long lowestOneBit(long); public static int numberOfLeadingZeros(long); public static int numberOfTrailingZeros(long); public static int bitCount(long); public static long rotateLeft(long,int); public static long rotateRight(long,int); public static long reverse(long); public static int signum(long); public static long reverseBytes(long); public int compareTo(java.lang.Long); public static java.lang.String toString(float); public static java.lang.String toHexString(float); public static java.lang.Float valueOf(java.lang.String); public static java.lang.Float valueOf(float); public static float parseFloat(java.lang.String); public static boolean isNaN(float); public static boolean isInfinite(float); public static int floatToIntBits(float); public static int floatToRawIntBits(float); public static float intBitsToFloat(int); public static int compare(float,float); public boolean isNaN(); public boolean isInfinite();public int compareTo(java.lang.Float); public static java.lang.String toString(double); public static java.lang.String toHexString(double); public static java.lang.Double valueOf(java.lang.String); public static java.lang.Double valueOf(double); public static double parseDouble(java.lang.String); public static boolean isNaN(double); public static boolean isInfinite(double); public static long doubleToLongBits(double); public static long doubleToRawLongBits(double); public static double longBitsToDouble(long); public static int compare(double,double); public boolean isNaN(); public boolean isInfinite();public int compareTo(java.lang.Double);public <init>(byte); public <init>(short); public <init>(int); public <init>(long); public <init>(float); public <init>(double); public <init>(java.lang.String); public byte byteValue(); public short shortValue(); public int intValue(); public long longValue(); public float floatValue(); public double doubleValue();public int compareTo(java.lang.Object); public boolean equals(java.lang.Object); public int hashCode();public java.lang.String toString(); }# Remove - String method calls. Remove all invocations of String # methods without side effects whose return values are not used. -assumenosideeffects public class java.lang.String { public <init>(); public <init>(byte[]); public <init>(byte[],int); public <init>(byte[],int,int); public <init>(byte[],int,int,int);public <init>(byte[],int,int,java.lang.String); public <init>(byte[],java.lang.String); public <init>(char[]); public <init>(char[],int,int); public <init>(java.lang.String); public <init>(java.lang.StringBuffer);public static java.lang.String copyValueOf(char[]); public static java.lang.String copyValueOf(char[],int,int); public static java.lang.String valueOf(boolean); public static java.lang.String valueOf(char); public static java.lang.String valueOf(char[]); public static java.lang.String valueOf(char[],int,int); public static java.lang.String valueOf(double); public static java.lang.String valueOf(float); public static java.lang.String valueOf(int);public static java.lang.String valueOf(java.lang.Object); public static java.lang.String valueOf(long); public boolean contentEquals(java.lang.StringBuffer); public boolean endsWith(java.lang.String); public boolean equalsIgnoreCase(java.lang.String); public boolean equals(java.lang.Object); public boolean matches(java.lang.String);public boolean regionMatches(boolean,int,java.lang.String,int,int); public boolean regionMatches(int,java.lang.String,int,int); public boolean startsWith(java.lang.String); public boolean startsWith(java.lang.String,int); public byte[] getBytes();public byte[] getBytes(java.lang.String); public char charAt(int); public char[] toCharArray();public int compareToIgnoreCase(java.lang.String); public int compareTo(java.lang.Object); public int compareTo(java.lang.String); public int hashCode(); public int indexOf(int); public int indexOf(int,int); public int indexOf(java.lang.String); public int indexOf(java.lang.String,int); public int lastIndexOf(int); public int lastIndexOf(int,int); public int lastIndexOf(java.lang.String); public int lastIndexOf(java.lang.String,int); public int length();public java.lang.CharSequence subSequence(int,int); public java.lang.String concat(java.lang.String);public java.lang.String replaceAll(java.lang.String,java.lang.String); public java.lang.String replace(char,char);public java.lang.String replaceFirst(java.lang.String,java.lang.String); public java.lang.String[] split(java.lang.String); public java.lang.String[] split(java.lang.String,int); public java.lang.String substring(int); public java.lang.String substring(int,int); public java.lang.String toLowerCase();public java.lang.String toLowerCase(java.util.Locale); public java.lang.String toString(); public java.lang.String toUpperCase();public java.lang.String toUpperCase(java.util.Locale); public java.lang.String trim(); }# Remove - StringBuffer method calls. Remove all invocations of StringBuffer # methods without side effects whose return values are not used. -assumenosideeffects public class java.lang.StringBuffer { public <init>(); public <init>(int);public <init>(java.lang.String); public <init>(java.lang.CharSequence); public java.lang.String toString(); public char charAt(int); public int capacity(); public int codePointAt(int); public int codePointBefore(int); public int indexOf(java.lang.String,int); public int lastIndexOf(java.lang.String); public int lastIndexOf(java.lang.String,int); public int length();public java.lang.String substring(int); public java.lang.String substring(int,int); }# Remove - StringBuilder method calls. Remove all invocations of StringBuilder # methods without side effects whose return values are not used. -assumenosideeffects public class java.lang.StringBuilder { public <init>(); public <init>(int);public <init>(java.lang.String); public <init>(java.lang.CharSequence); public java.lang.String toString(); public char charAt(int); public int capacity(); public int codePointAt(int); public int codePointBefore(int); public int indexOf(java.lang.String,int); public int lastIndexOf(java.lang.String); public int lastIndexOf(java.lang.String,int); public int length();public java.lang.String substring(int); public java.lang.String substring(int,int); }
这段话是在网上找的,拼凑一下,能用...
修改上面的-injars,-outjars,-libraryjars路径等
3.开始->运行->输入"cmd"->输入"Java -Xms256m -Xmx512m -jar D:\java\proguard4.5beta4\lib\proguard.jar @D:\java\proguard4.5beta4\kfwggl.pro"
不带引号,"D:\java\proguard4.5beta4\lib\proguard.jar"这个是proguard的jar路径,参照着填写自己的路径
"@D:\java\proguard4.5beta4\kfwggl.pro"这个是上面新建的文本文档的路径
然后回车,可能会有些错误,根据提示修改,成功例子:
上图红线圈着的,表示混淆成功,输出jar在Y:\java\src.jar
上面完成了代码混淆,一般情况下,大多数的人都是用混编器(java obfuscator)来把开发出来的程序进行打乱,以想达到防止反编译的目的,但是,这种方法在网上也很容易找到相关的软件来重新整理,那么这个混编器工具也只能控制一些本来就不怎么会编程的人,而对于编程大牛没有多大意义。下面再介绍另一种方案。使用自定义的ClassLoader进行加密解密。我们在使用自定义的classloader的时候,装载自己的程序,那么就可以对装入的字节码进行一定的操作,比如解密。在调用自定义的装载器classloader的时候,首先是要装入被加密之后的文件,通常情况下仍旧已.class为扩展名,在调用defineClass之前对装入的数据解密。自定义ClassLoader在这里不详细展开,网上有大量的实例,下面给出一个可以自动生成密钥,使用该密钥进行加密解密的工具,读者可将该工具嵌入到自定义的ClassLoader之中实现,源代码的加密解密。该加密工具需要引入sunjce_provider.jar,读者可自行下载
package org.nercita.jar.security;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.security.Key;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.Security;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
public class DESEncryptUtil {
//创建密钥
public static Key createKey() throws NoSuchAlgorithmException {//创建密钥
Security.insertProviderAt(new com.sun.crypto.provider.SunJCE(), 1);
KeyGenerator generator = KeyGenerator.getInstance("DES");
generator.init(new SecureRandom());
Key key = generator.generateKey();
return key;
}
//
public static Key getKey(InputStream is) {
try {
ObjectInputStream ois = new ObjectInputStream(is);
return (Key) ois.readObject();
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
//
private static byte[] doEncrypt(Key key, byte[] data) {//对数据进行加密?
try {
Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, key);
byte[] raw = cipher.doFinal(data);
return raw;
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
//
public static InputStream doDecrypt(Key key, InputStream in) {//对数据进行解密?
try {
Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, key);
ByteArrayOutputStream bout = new ByteArrayOutputStream();
byte[] tmpbuf = new byte[1024];
int count = 0;
while ((count = in.read(tmpbuf)) != -1) {
bout.write(tmpbuf, 0, count);
tmpbuf = new byte[1024];
}
in.close();
byte[] orgData = bout.toByteArray();
byte[] raw = cipher.doFinal(orgData);
ByteArrayInputStream bin = new ByteArrayInputStream(raw);
return bin;
} catch (Exception e){
e.printStackTrace();
throw new RuntimeException(e);
}
}
//
public static void main(String[] args) throws Exception{
System.out.println("===================");
if(args.length == 2 && args[0].equals("key")){
Key key = DESEncryptUtil.createKey();
ObjectOutputStream oos = new ObjectOutputStream(
new FileOutputStream(args[1]));
oos.writeObject(key);
oos.close();
System.out.println("成功生成密钥文件");
}else if (args.length == 3 && args[0].equals("encrypt")){
File file = new File(args[1]);
FileInputStream in = new FileInputStream(file);
ByteArrayOutputStream bout = new ByteArrayOutputStream();
byte[] tmpbuf = new byte[1024];
int count = 0;
while ((count = in.read(tmpbuf)) != -1){
bout.write(tmpbuf, 0, count);
tmpbuf = new byte[1024];
}
in.close();
byte[] orgData = bout.toByteArray();
Key key = getKey(new FileInputStream(args[2]));
byte[] raw = DESEncryptUtil.doEncrypt(key, orgData);
file = new File(file.getParent() + "\\en_" + file.getName());
FileOutputStream out = new FileOutputStream(file);
out.write(raw);
out.close();
System.out.println("成功加密,加密文件为:"+file.getAbsolutePath());
} else if (args.length == 3 && args[0].equals("decrypt")){//对文件进行解密
File file = new File(args[1]);
FileInputStream fis = new FileInputStream(file);
Key key = getKey(new FileInputStream(args[2]));
InputStream raw = DESEncryptUtil.doDecrypt(key, fis);
ByteArrayOutputStream bout = new ByteArrayOutputStream();
byte[] tmpbuf = new byte[1024];
int count = 0;
while ((count = raw.read(tmpbuf)) != -1){
bout.write(tmpbuf, 0, count);
tmpbuf = new byte[1024];
}
raw.close();
byte[] orgData = bout.toByteArray();
file = new File(file.getParent() + "\\rs_" + file.getName());
FileOutputStream fos = new FileOutputStream(file);
fos.write(orgData);
System.out.println("成功解密,解密文件位:"+file.getAbsolutePath());
}else if(args.length==1 && args[0].equals("-h")) {
System.out.println("\t文件加密解密\n");
System.out.println("创建密钥文件:java -jar key.jar key E:/key.dat");
System.err.println("其中key.jar为需要运行的Jar文件,key参数表示要创建加密文件 ,E:/key.dat表示加密文件的存放位置");
System.out.println("\n");
System.out.println("加密文件:java -jar key.jar encrypt E:/test.properties E:/key.dat ");
System.err.println("其中key.jar为需要运行的Jar文件 encrypt 参数表示加密 E:/test.properties表示需要加密的文件 E:/key.dat表示加密密钥文件");
System.out.println("\n");
System.out.println("解密文件:java -jar key.jar decrypt E:/en_test.properties E:/key.dat ");
System.err.println("其中key.jar为需要运行的Jar文件 decrypt参数表示解密 E:/en_test.properties表示需要解密的文件 E:/key.dat表示解密的密钥文件");
}else {
System.out.println("你需要运行参数-h");
}
}
}
java源代码加密+使用proguard混淆java web项目代码+自定义Classloader相关推荐
- 一步步教你使用Proguard混淆Java源代码
一步步教你使用Proguard混淆Java源代码 java代码很容易被反编译,以下使用proguard来保护我们的代码 proguard选项很多,容易迷糊,现在就把我的配置写下来(实际使用中),以供参 ...
- Eclipse导入Web项目代码报错解决方案
Eclipse导入Web项目代码报错解决方案 我相信很多人在开发中导入别人的项目时,Web项目导入Eclipse中项目出现报错(左上角有红叉).开发环境:J2EE5+JDK8,IDE使用Eclipse ...
- 使用proguard混淆java web项目代码
1.首先下载proGuard.zip到本地: proguard4.5beta4.tar.zip解压开, 2.新建文本文档,修改文件名为XXX.pro,然后复制下面内容到.pro -injars 'Y: ...
- java proguard 使用_一步步教你使用Proguard混淆Java源代码
ava代码很容易被反编译,以下使用proguard来保护我们的代码 proguard选项很多,容易迷糊,现在就把我的配置写下来(实际使用中),以供参考 2.准备好你的jar包,我在这里举例叫做test ...
- java war包混淆_使用proguard混淆java web项目代码
-injars 'Y:\src.jar' #需要混淆的jar -outjars 'Y:\java\src.jar' #输出jar -libraryjars 'C:\java\jre6\lib\rt.j ...
- ProGuard混淆Java项目的核心代码
开发需求 众所周知,class文件可以进行反编译从而泄露核心代码,为了保护知识产权,需要对代码进行混淆再进行打包.现阶段采用proguard去做一个基本的混淆,使代码的可读性降低. 操作步骤 [模块目 ...
- 解析java源代码_一步步解析java执行内幕
对于任何一门语言,要想达到精通的水平,研究它的执行原理(或者叫底层机制)不失为一种良好的方式.在本篇文章中,将重点研究java源代码的执行原理,即从程 序员编写JAVA源代码,到最终形成产品,在整个过 ...
- java rc2加密_急求java RC2加密算法
下面是一段C++ RC2加密 要求要用java 重写 能互相加密解密 QSBEncryptRc2::QSBEncryptRc2() { EncryKey = "DingXin Com ...
- 简单的Java web项目代码(8个)
引言:Java web项目主要采用mvc的的设计思想,系统主要采用java+jsp+servlet+mysql+eclipse实现,具有登陆.分页.导出excel,增删改查等功能,适合初学者,满足基本 ...
最新文章
- js中every用法_every方法
- 一代偶像终将老去,总有AI正在年轻
- EasyUI错误总结1
- Java中的List你真的会用吗
- wso2 esb_使用WSO2 ESB构建制造服务总线(MSB)
- VMware 虚拟机占用磁盘空间
- api函数原型大全_如何使用您的API优先平台来使原型做好生产准备
- 11 个 Git 面试题
- BZOJ4458: GTY的OJ
- django 已登陆用户的权限问题
- Python自动化中的元素定位xpath(二)
- Ra-08系列开发板入门教程,标准LoRaWAN对接私有服务器。
- 手机连接adb操作步骤
- 无胁科技-TVD每日漏洞情报-2022-7-12
- 大数据 - MapReduce编程案例 -BH3
- 分组统计group by
- 【网站SEO优化】选择什么样的关键词最重要!
- 《Activiti 深入BPM工作流 》--- 数据库表的命名规则是什么?
- 羽毛球馆场地管理系统的设计与实现
- 强项目经理,弱项目总监