jrebal(原名javarebel)破解小记 -凯发k8网页登录

jrebal(原名javarebel)破解小记

posted on 2009-10-15 20:09 云自无心水自闲阅读(11198) 评论(16) 所属分类: java 、心得体会

javarebel是一个工具，主要是用于热加载，比如说在tomcat之类的应用服务器中，更新了class或者某些资源文件，使用了jrebel之后，就不需要重新启动应用服务器。这对于开发的人来说，是特别方便的。当然java也提供了hotspot的jvm，但是如果你修改的类中有方法名称变动的话，hotspot就无能为力了，必须要重要启动应用服务器。
这里有一点先声明一下，本文只是破解仅限于学习和研究使用，勿用于其他用途。
第一步当然是下载jrebel
下载地址：http://www.zeroturnaround.com/jrebel/download/
下载下来的是一个zip压缩包，打开之后会发现一个jrebel.jar，这就是其最重要的运行包了。其他都是一些文档和插件。
第二步，是进行反编译。
我推荐一个工具：http://java.decompiler.free.fr/，分成eclipse插件和单独的运行程序两种，我下载的是单独的运行程序，只有一个绿色的exe文件，点击后直接运行。
看了一下，最显眼的自然是userlicense类了。

package com.zeroturnaround.licensing;
2

import java.io.serializable;
4

import java.util.map;
5

public class userlicense
7

implements serializable
8

{
9

static final long serialversionuid = 1l;
10

private byte[] signature;
11

private byte[] license;
12

private map datamap;
13

public byte[] getsignature()
15

{
16

return this.signature;
17

}
18

public void setsignature(byte[] paramarrayofbyte) {
20

this.signature = paramarrayofbyte;
21

}
22

public byte[] getlicense() {
24

return this.license;
25

}
26

public void setlicense(byte[] paramarrayofbyte) {
28

this.license = paramarrayofbyte;
29

}
30

}
31

然后就找到了调用getlicense方法的js类（名字很奇怪，因为是混淆过的原因，js类反编译后的源码附在最后面了）
这个类中很明确地显示了license的获取方法。
首先是：jreble.lic文件，用winrar打开jrebel.jar就看到这个文件了。
从源码来看，userlicense是用objectinputstream通过readobject得到了。
然后，属性license里面其实是一个map，用objectinputstream从bytearrayinputsteam中通过readobject得到。于是写了下面这样的测试代码

package temp.jrebel;
2

import java.io.bufferedinputstream;
4

import java.io.bufferedoutputstream;
5

import java.io.bytearrayinputstream;
6

import java.io.bytearrayoutputstream;
7

import java.io.file;
8

import java.io.fileinputstream;
9

import java.io.fileoutputstream;
10

import java.io.ioexception;
11

import java.io.objectinputstream;
12

import java.io.objectoutputstream;
13

import java.util.calendar;
14

import java.util.gregoriancalendar;
15

import java.util.iterator;
16

import java.util.map;
17

import junit.framework.assert;
18

import org.junit.test;
19

import com.zeroturnaround.licensing.userlicense;
20

public class parselicense {
22

@test
23

public void parselicensefile() {
24

object localobject1 = null;
25

try {
26

system.out.println("start to get lic file.");
27

file localfile2 = new file("d:\\temp\\jrebel.lic");
28

assert.assertnotnull(localfile2);
29

system.out.println("start to get objectinputstream.");
31

localobject1 = new objectinputstream(new bufferedinputstream(
32

new fileinputstream(localfile2)));
33

assert.assertnotnull(localobject1);
34

system.out.println("start to get userlicense.");
36

userlicense localuserlicense1 = (userlicense)((objectinputstream)localobject1).readobject();
37

assert.assertnotnull(localuserlicense1);
38

system.out.println("start to get objectinputstream2.");
40

objectinputstream localobjectinputstream = new objectinputstream(new bytearrayinputstream(localuserlicense1.getlicense()));
41

assert.assertnotnull(localobjectinputstream);
42

system.out.println("start to get localmap.");
44

map localmap = (map)localobjectinputstream.readobject();
45

assert.assertnotnull(localmap);
46

system.out.println("start tot output value.");
48

for ( iterator iter = localmap.keyset().iterator(); iter.hasnext(); ) {
49

string key = (string)iter.next();
50

system.out.println("key: " key ", value: " localmap.get(key));
51

}
52

} catch (exception e) {
54

e.printstacktrace();
55

assert.fail("faile to parse license. ");
56

} finally {
57

if (localobject1 != null) {
58

try {
59

((objectinputstream) localobject1).close();
60

} catch (ioexception localioexception12) {
61

}
62

}
63

}
64

}
66

}
67

concole中果然如我所愿地，把map里的值都打印出来了。到了这一步，剩下的就简单了，把map里面的validateuntil属性的日期换一下，重新生成一个license文件就行了。
把上面的代码修改一下，很容易地就生成了新的license文件。
原来license里面的试用期只有一个月，比如，我是2009-10-15下载的，那么这个jrebel.lic文件里的validateuntil日期就是11月14日，现在我把他改成了明年元旦。

package temp.jrebel;
2

import java.io.bufferedinputstream;
4

import java.io.bufferedoutputstream;
5

import java.io.bytearrayinputstream;
6

import java.io.bytearrayoutputstream;
7

import java.io.file;
8

import java.io.fileinputstream;
9

import java.io.fileoutputstream;
10

import java.io.ioexception;
11

import java.io.objectinputstream;
12

import java.io.objectoutputstream;
13

import java.util.calendar;
14

import java.util.gregoriancalendar;
15

import java.util.iterator;
16

import java.util.map;
17

import junit.framework.assert;
18

import org.junit.test;
19

import com.zeroturnaround.licensing.userlicense;
20

public class parselicense {
22

@test
23

public void parselicensefile() {
24

object localobject1 = null;
25

try {
26

system.out.println("start to get lic file.");
27

file localfile2 = new file("d:\\temp\\jrebel.lic");
28

assert.assertnotnull(localfile2);
29

system.out.println("start to get objectinputstream.");
31

localobject1 = new objectinputstream(new bufferedinputstream(
32

new fileinputstream(localfile2)));
33

assert.assertnotnull(localobject1);
34

system.out.println("start to get userlicense.");
36

userlicense localuserlicense1 = (userlicense)((objectinputstream)localobject1).readobject();
37

assert.assertnotnull(localuserlicense1);
38

system.out.println("start to get objectinputstream2.");
40

objectinputstream localobjectinputstream = new objectinputstream(new bytearrayinputstream(localuserlicense1.getlicense()));
41

assert.assertnotnull(localobjectinputstream);
42

system.out.println("start to get localmap.");
44

map localmap = (map)localobjectinputstream.readobject();
45

assert.assertnotnull(localmap);
46

system.out.println("start tot output value.");
48

for ( iterator iter = localmap.keyset().iterator(); iter.hasnext(); ) {
49

string key = (string)iter.next();
50

system.out.println("key: " key ", value: " localmap.get(key));
51

}
52

system.out.println("start to change date.");
55

calendar cal = new gregoriancalendar(2010, 01, 01);
56

localmap.put("validuntil", cal.gettime());
57

system.out.println("start to set a new date to license.");
59

bytearrayoutputstream out1 = new bytearrayoutputstream();
60

objectoutputstream out2 = new objectoutputstream(out1);
61

out2.writeobject(localmap);
62

out1.tobytearray();
63

localuserlicense1.setlicense(out1.tobytearray());
64

out1.close();
65

out2.close();
66

system.out.println("start to get objectinputstream2.");
69

localobjectinputstream = new objectinputstream(new bytearrayinputstream(localuserlicense1.getlicense()));
70

assert.assertnotnull(localobjectinputstream);
71

system.out.println("start to get localmap.");
73

localmap = (map)localobjectinputstream.readobject();
74

assert.assertnotnull(localmap);
75

for ( iterator iter = localmap.keyset().iterator(); iter.hasnext(); ) {
77

string key = (string)iter.next();
78

system.out.println("key: " key ", value: " localmap.get(key));
79

}
80

string newlicensefile = "d:\\temp\\new.lic";
83

objectoutputstream out3 = new objectoutputstream(new bufferedoutputstream(new fileoutputstream(newlicensefile)));
84

out3.writeobject(localuserlicense1);
85

out3.close();
86

} catch (exception e) {
88

e.printstacktrace();
89

assert.fail("faile to parse license. ");
90

} finally {
91

if (localobject1 != null) {
92

try {
93

((objectinputstream) localobject1).close();
94

} catch (ioexception localioexception12) {
95

}
96

}
97

}
98

}
100

}
101

102

103

这是我用反编译工具反编译出来的部分源码：

/*     */ package com.zeroturnaround.javarebel;
/*     */ public class js
/*     */   implements dn

/* 405 */     if (localuserlicense != null) {
/*     */       try {
/* 407 */         if (eo.a(localuserlicense)) {
/* 408 */           jdfield_a_of_type_int = 1;
/*     */         }
/* 410 */         objectinputstream localobjectinputstream = new objectinputstream(new bytearrayinputstream(localuserlicense.getlicense()));
/* 411 */         localmap = (map)localobjectinputstream.readobject();
/* 412 */         localobjectinputstream.close();
/*     */
/* 414 */         if ((!("javarebel".equals(localmap.get("product")))) && (!("jrebel".equals(localmap.get("product"))))) {
/* 415 */           jdfield_a_of_type_int = 0;
/*     */         }
/* 417 */         ih.log("license information: " localmap);
/*     */
/* 420 */         boolean bool1 = boolean.valueof((string)localmap.get("commercial")).booleanvalue();
/* 421 */         if ((jdfield_a_of_type_int == 1) && (bool1)) {
/* 422 */           jdfield_a_of_type_int = 3;
/*     */         }
/*     */
/* 425 */         localobject = (string)localmap.get("limited");
/*     */
/* 427 */         if ((localobject != null) && (jdfield_a_of_type_int == 1)) {
/* 428 */           if (((string)localobject).equals("true")) {
/* 429 */             jdfield_a_of_type_int = 2;
/* 430 */             jn.a("license: evaluation");
/*     */           }
/* 432 */           else if (((string)localobject).equals("scala")) {
/* 433 */             jdfield_a_of_type_int = 2;
/* 434 */             jdfield_b_of_type_int |= 1;
/* 435 */             jn.a("license: scala");
/*     */           }
/* 437 */           else if (((string)localobject).equals("liverebel")) {
/* 438 */             jdfield_a_of_type_int = 2;
/* 439 */             jdfield_b_of_type_int |= 2;
/* 440 */             jn.a("license: liverebel");
/*     */           }
/*     */         }
/* 443 */         if (jdfield_a_of_type_int == 1) {
/* 444 */           localdate2 = (date)localmap.get("validuntil");
/* 445 */           localdate3 = (date)localmap.get("validfrom");
/*     */         }
/* 447 */         else if (jdfield_a_of_type_int == 2) {
/* 448 */           localdate2 = (date)localmap.get("limiteduntil");
/* 449 */           localdate3 = (date)localmap.get("limitedfrom");
/*     */         }
/*     */
/* 452 */         if (c.contains(localmap.get("uid")))
/* 453 */           jdfield_a_of_type_int = 0;
/*     */       }
/*     */       catch (exception localexception1)
/*     */       {
/* 457 */         ih.log("exception checking the jrebel license");
/* 458 */         localexception1.printstacktrace();
/* 459 */         ih.error(localexception1);
/*     */       }
/*     */     }
/*     */
/* 463 */     ih.echo();
/* 464 */     ih.echo("#############################################################");
/* 465 */     ih.echo();
/* 466 */     ih.echo(" jrebel " str1 " (" ((jdfield_a_of_type_javalangclass == null) ? (js.jdfield_a_of_type_javalangclass = a("com.zeroturnaround.javarebel.java4.install")) : jdfield_a_of_type_javalangclass).getpackage().getimplementationtitle() ")");
/* 467 */     ih.echo(" (c) 凯发天生赢家一触即发官网 copyright zeroturnaround, ltd, 2007-2009. all rights reserved.");
/* 468 */     ih.echo();
/*     */
/* 470 */     if (ga.c()) {
/*     */       try {
/* 472 */         numberformat localnumberformat = numberformat.getnumberinstance();
/* 473 */         localnumberformat.setminimumfractiondigits(0);
/* 474 */         localnumberformat.setmaximumfractiondigits(1);
/*     */
/* 476 */         string str3 = localnumberformat.format(cu.a() * 96.0d / 3600.0d);
/* 477 */         localobject = localnumberformat.format(cu.a() * 195.0d / 3600.0d);
/*     */
/* 479 */         string str4 = localnumberformat.format(cu.b() * 96.0d / 3600.0d);
/* 480 */         string str5 = localnumberformat.format(cu.b() * 195.0d / 3600.0d);
/*     */
/* 482 */         string str6 = "" (cu.c() 1);
/* 483 */         string str7 = "" (cu.c() 1);
/*     */
/* 485 */         ih.echo(" a rough estimate: over the last " str6 " days jrebel ");
/* 486 */         ih.echo(" prevented the need for at least " cu.a() " redeploys/restarts.");
/* 487 */         ih.echo(" using industry standard build and redeploy times, ");
/* 488 */         ih.echo(" jrebel saved you between " str3 " and " ((string)localobject) " hours.");
/*     */
/* 490 */         if (cu.c() > 60) {
/* 491 */           ih.echo(" over the last " str7 " days jrebel saved you");
/* 492 */           ih.echo(" between " str4 " and " str5 " hours.");
/*     */         }
/*     */
/* 495 */         ih.echo();
/*     */       }
/*     */       catch (exception localexception2) {
/* 498 */         ih.error(localexception2);
/*     */       }
/*     */     }
/*     */
/* 502 */     if (jdfield_a_of_type_int == 3) {
/* 503 */       jdfield_a_of_type_boolean = true;
/*     */
/* 505 */       str2 = (string)localmap.get("seats");
/*     */
/* 507 */       bool2 = ("1".equals(str2)) && (((localmap.get("organization") == null) || ("".equals(localmap.get("organization"))) || (((string)localmap.get("organization")).equalsignorecase("personal"))));
/*     */
/* 511 */       localobject = new stringbuffer(" this product is licensed to ");
/* 512 */       if ((bool2) && (localmap.get("name") != null) && (!("".equals(localmap.get("name"))))) {
/* 513 */         ((stringbuffer)localobject).append(localmap.get("name"));
/*     */
/* 515 */         if ((localmap.get("organization") != null) && (!("".equals(localmap.get("organization"))))) {
/* 516 */           ((stringbuffer)localobject).append(" (");
/* 517 */           ((stringbuffer)localobject).append(localmap.get("organization"));
/* 518 */           ((stringbuffer)localobject).append(") ");
/*     */         }
/* 520 */         jn.a("license: personal");
/*     */       }
/*     */       else {
/* 523 */         ((stringbuffer)localobject).append(localmap.get("organization"));
/* 524 */         jn.a("license: corporate");
/*     */       }
/*     */
/* 527 */       ih.echo(((stringbuffer)localobject).tostring());
/*     */
/* 529 */       if ("unlimited".equals(str2)) {
/* 530 */         ih.echo(" for unlimited number of developer seats on site.");
/*     */       }
/* 532 */       else if ((str2 != null) && (!(bool2))) {
/* 533 */         ih.echo(" for up to " str2 " developer seats on site. ");
/*     */       }
/* 535 */       else if (bool2) {
/* 536 */         ih.echo(" for personal use only. ");
/*     */       }
/*     */
/* 539 */       if ((localmap.get("comment") != null) && (!("".equals(localmap.get("comment"))))) {
/* 540 */         ih.echo(" " localmap.get("comment"));
/*     */       }
/*     */
/* 543 */       if (localdate2 != null) {
/* 544 */         a(localdate1, localdate2);
/*     */       }
/*     */
/* 547 */       ih.echo();
/* 548 */       ih.echo("#############################################################");
/* 549 */       ih.echo();
/*     */     }
/* 551 */     else if (jdfield_a_of_type_int == 2) {
/* 552 */       if (((jdfield_b_of_type_int & 0x2) == 0) && ((((localdate2 != null) && (localdate1.after(localdate2))) || ((localdate3 != null) && (localdate1.before(localdate3))))))
/*     */       {
/* 555 */         ih.echo(" your jrebel limited license has expired!");
/*     */       }
/*     */       else {
/* 558 */         jdfield_a_of_type_boolean = true;
/*     */       }
/*     */
/* 561 */       if ((jdfield_b_of_type_int & 0x2) == 0) {
/* 562 */         str2 = (string)localmap.get("seats");
/*     */
/* 564 */         bool2 = "1".equals(str2);
/*     */
/* 566 */         localobject = new stringbuffer(" this product is licensed to ");
/* 567 */         if ((bool2) && (localmap.get("name") != null) && (!("".equals(localmap.get("name"))))) {
/* 568 */           ((stringbuffer)localobject).append(localmap.get("name"));
/*     */
/* 570 */           if ((localmap.get("organization") != null) && (!("".equals(localmap.get("organization"))))) {
/* 571 */             ((stringbuffer)localobject).append(" (");
/* 572 */             ((stringbuffer)localobject).append(localmap.get("organization"));
/* 573 */             ((stringbuffer)localobject).append(") ");
/*     */           }
/*     */         }
/*     */         else {
/* 577 */           ((stringbuffer)localobject).append(localmap.get("organization"));
/*     */         }
/*     */
/* 580 */         ih.echo(((stringbuffer)localobject).tostring());
/*     */
/* 582 */         if (localdate2 != null) {
/* 583 */           ih.echo(" until " simpledateformat.getdateinstance(1, locale.english).format(localdate2));
/*     */         }
/*     */
/* 586 */         if ("unlimited".equals(str2)) {
/* 587 */           ih.echo(" for unlimited number of developer seats on site.");
/*     */         }
/* 589 */         else if ((str2 != null) && (!("1".equals(str2)))) {
/* 590 */           ih.echo(" for up to " str2 " developer seats on site. ");
/*     */         }
/*     */
/* 593 */         if ((localmap.get("comment") != null) && (!("".equals(localmap.get("comment"))))) {
/* 594 */           ih.echo(" with the following restrictions: ");
/* 595 */           ih.echo(" " ((string)localmap.get("comment")));
/*     */         }
/*     */
/* 598 */         if (localdate2 != null) {
/* 599 */           a(localdate1, localdate2);
/*     */         }
/*     */       }
/*     */
/* 603 */       if (localmap.get("organization") != null) {
/* 604 */         str2 = (string)localmap.get("organization");
/* 605 */         if (str2.indexof("[open-source]") != -1) {
/* 606 */           jn.a("giveaway: oss");
/*     */         }
/*     */
/*     */       }
/*     */
/* 613 */       ih.echo();
/* 614 */       ih.echo("#############################################################");
/* 615 */       ih.echo();
/*     */     }
/* 617 */     else if (jdfield_a_of_type_int == 1) {
/* 618 */       if ((localdate2 == null) || (localdate1.after(localdate2))) {
/* 619 */         ih.echo(" your jrebel evaluation license has expired!");
/*     */       }
/* 621 */       else if ((localdate3 == null) || (localdate1.before(localdate3))) {
/* 622 */         ih.echo(" your jrebel evaluation could not have started yet!");
/*     */       }
/*     */       else {
/* 625 */         jdfield_a_of_type_boolean = true;
/*     */
/* 627 */         long l1 = localdate2.gettime() - localdate1.gettime();
/* 628 */         long l2 = l1 / 86400000l;
/*     */
/* 630 */         ih.echo(" you are running jrebel evaluation license.");
/* 631 */         ih.echo(" you have " (l2 1l) " days until the license expires. ");
/* 632 */         ih.echo();
/* 633 */         ih.echo(" you will see this notification until you obtain a ");
/* 634 */         ih.echo(" full license for your installation. ");
/*     */       }
/* 636 */       ih.echo("                                                          ");
/* 637 */       ih.echo(" visit www.jrebel.com for instructions on obtaining    ");
/* 638 */       ih.echo(" a full license. if you wish to continue your evaluation ");
/* 639 */       ih.echo(" please e-mail to support@zeroturnaround.com.             ");
/* 640 */       ih.echo("                                                          ");
/* 641 */       ih.echo(" if you think you should not see this message contact     ");
/* 642 */       ih.echo(" support@zeroturnaround.com or check that you have your   ");
/* 643 */       ih.echo(" license file in the same directory as the jar file.      ");
/* 644 */       ih.echo("                                                          ");
/* 645 */       ih.echo("#############################################################");
/* 646 */       ih.echo();
/*     */
/* 649 */       eo.a(localuserlicense);
/*     */     }
/*     */     else {
/* 652 */       ih.echo(" you do not have a valid jrebel license!               ");
/* 653 */       ih.echo("                                                          ");
/* 654 */       ih.echo(" visit www.jrebel.com for instructions on obtaining    ");
/* 655 */       ih.echo(" a full or evaluation license.                            ");
/* 656 */       ih.echo("                                                          ");
/* 657 */       ih.echo(" if you think you should not see this message contact     ");
/* 658 */       ih.echo(" support@zeroturnaround.com or check that you have your   ");
/* 659 */       ih.echo(" license file in the same directory as the jar file.      ");
/* 660 */       ih.echo("                                                          ");
/* 661 */       ih.echo("#############################################################");
/* 662 */       ih.echo();
/*     */     }
/*     */
/* 665 */     if (!(jdfield_a_of_type_boolean)) {
/* 666 */       system.exit(1);
/*     */     }

# re: jrebal(原名javarebel)破解小记回复

2009-10-16 00:10 by

写得很仔细，谢谢了！

# re: jrebal(原名javarebel)破解小记回复

2009-10-16 08:31 by

感谢啊，我正想破解呢。看来不用麻烦了。

# re: jrebal(原名javarebel)破解小记回复

2009-10-16 08:58 by

jrebel的作者应该用groovy写注册算法，然后编译成class，然后混淆一下。
这样就难破解了。

# re: jrebal(原名javarebel)破解小记回复

2009-10-16 08:59 by

上个回复不太准确，应该是

然后编译成class，然后反编译，然后再混淆一下

# re: jrebal(原名javarebel)破解小记回复

2009-10-16 10:11 by

试了一下，好像不行。

jrebel 2.1a (200910071200)
(c) 凯发天生赢家一触即发官网 copyright zeroturnaround, ltd, 2007-2009. all rights reserved.

a rough estimate: over the last 1 days jrebel
prevented the need for at least 0 redeploys/restarts.
using industry standard build and redeploy times,
jrebel saved you between 0 and 0 hours.

you do not have a valid jrebel license!

visit www.jrebel.com for instructions on obtaining
a full or evaluation license.

if you think you should not see this message contact
support@zeroturnaround.com or check that you have your
license file in the same directory as the jar file.

# re: jrebal(原名javarebel)破解小记回复

2009-10-16 12:08 by

不行啊！

# re: jrebal(原名javarebel)破解小记[未登录] 回复

2009-10-16 14:04 by

楼主破解成功了吗？我试了不行啊。错误和楼上一样提示无效的license

# re: jrebal(原名javarebel)破解小记回复

2009-10-16 14:40 by beansoft

我记得好像是里面还有一个数字证书的验证过程防止许可内容被篡改所以我一直用我申请的那个免费许可也没升级下载:

javarebel的xxx

# re: jrebal(原名javarebel)破解小记回复

2009-10-16 17:51 by

楼主能发现这些真的不错，但按照上面的方法，还是不能破解。情况和楼上说的一样。

我发现了比较奇怪的问题，我去替换jrebel.jar里边的jrebel.lic前，把原来还有28天试用期的jrebel.jar备份为jrebel.jar.bak.

替换新生成的jrebel.lic，测试不成功，我有把原来的jrebel.jar.bak改为了jrebel.jar, 结果原来的这个jrebel.jar也不好用了。

从新解压一份，运行，还是28天试用期。。。

可能jrebel的作者在除jar包的内容外还做了其它的验证措施。
我下的版本是：jrebel-2.1a

# re: jrebal(原名javarebel)破解小记回复

2009-10-18 20:28 by

不得呢？？？、

# re: jrebal(原名javarebel)破解小记回复

2009-10-19 08:33 by 云自无心水自闲

是我的问题，在userlicense类里面有一个signature，显然是用于进行校验的。我看了看源代码，在另外一个类里有使用rsadigestsigner进行校验的步骤。

# re: jrebal(原名javarebel)破解小记回复

2009-10-19 10:28 by

e0.java调用了bf.java，有rsadigestsigner校验。

# re: jrebal(原名javarebel)破解小记回复

2009-10-19 18:07 by beansoft

如果把那个校验器破解了估计就 ok 了呵呵楼主加油!

俺的破解版可以下载了

http://www.blogjava.net/beansoft/archive/2009/10/20/298906.html

不过真的很佩服 jrebel 的 team 能用开源软件二次开发做出这么有创意的东东

# re: jrebal(原名javarebel)破解小记[未登录] 回复

2009-10-29 13:14 by

我是下了个2.0的破解版.然后用里面的无期限的lic文件.
再改最新版本的class文件的字节码实现的破解.
不过最关键的还是那个lic文件的制作,完全不会,貌似是rsa加密的啊.

# re: jrebal(原名javarebel)破解小记[未登录] 回复

2009-10-29 13:15 by

jrebel 2.1a (200910071200)
(c) 凯发天生赢家一触即发官网 copyright zeroturnaround, ltd, 2007-2009. all rights reserved.

a rough estimate: over the last 30 days jrebel
prevented the need for at least 67 redeploys/restarts.
using industry standard build and redeploy times,
jrebel saved you between 1.8 and 3.6 hours.

this product is licensed to unlimited
for fun! unlimited! enjoy!

# re: jrebal(原名javarebel)破解小记回复

2009-10-30 11:45 by

@冷血
关键是我们没有办法得到jrebel的私钥，我们在jrebel.jar中只能得到其公钥。

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