similar to: [LLVMdev] Obfuscation Transformations Clobbered by Unkown Optimizations

Matt, The LLVMCore library provides constant folding automatically. So, when your obfuscated module is read in and the assembler re-creates your constants, the arithmetic is done automatically and the constants are folded. To see where this is done, see lib/VMCore/ConstantFold.cpp Reid. On Thu, 2007-12-13 at 02:22 -0600, Matt Fredrikson wrote: > Hello all, > > I am implementing some

On Thu, 13 Dec 2007, Matt Fredrikson wrote: > After I run opt on an un-obfuscated bitcode file to produce an > obfuscated bitcode file, I verify that my transformations were placed ok > in the file using llvm-dis. At this point, the changes appear to have > been made. However, if I run the obfuscated bitcode file through llc > to produce x86 assembly, the obfuscations vanish. I

Hello all, I am implementing some simple obfuscation transformations in LLVM. One of the obfuscations involves searching for particular constants, and "unrolling" them throughout a procedure using arithmetic. In effect, certain constants are broken up into smaller constants and recombined as needed using the appropriate operators. I perform this on intermediate LLVM instructions. After

The other thread brought to my attention that only the <email> syntax obfuscates mailto links. Plus, while the entity encoding technique probably fools some scrapers, I doubt it's all that effective. Even Gruber uses the Hivelogic Enkoder [1]. So, what are people using for obfuscation and are you using any scripting or automation (filter that takes a pass before or after Markdown) to

Hi all, I was trying to implement an obfuscation tool for C-code on the basis of LLVM. I got a prototype of the simple obfuscation transformation which converting control flow graph to something like a state machine. I am not sure I will have time to work on extending further this tool with new transformations like opaque predicates and decided to put here source code I have by now with hope

is there a way to replace unkown action error with a pretty 404 page ? I set the ErrorDocument 404 in .htaccess, however when someong goes to http://www.mysite.com/bogus i would like it to show a 404 error instead of just "Uknown action". Is this possible with a rescue or something? adam -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, I want to use the dsmark, but it always says: "unkown qdisc", although I have enabled it (y in Network options), and I have my kernel recompiled. I am using SuSE 8.1, 2.4.20 Kernel, tc available at the HTB site (with already precompiled HTB queue). Can anybody find the problem? thx _________________________________________________________________ MSN 8 helps eliminate e-mail

Hello, I''ve got xen installed on a box running Fedora Core 6. In addition I''m running a Windows 2003 server as a domU. Everything work fine and I am quite satisfied with the setup. However, in win 2003''s device manager there is a unknown PCI device that I not able to find a suitable driver for. Windows update can''t find one either. Is there a way to find what

Hey, another question. I am having problems with my call files. Whenever I drop one into the outgoing folder, I get an "unknown keyword" error for each line in the file. This is what I have my file as right now. Channel: IAX2/scheda:*****@switch-2.nufone.net MaxRetries: 2 RetryTime: 60 WaitTime: 30 Context: outgoing Extension: 18636045489 Priority: 2 On the channel, that may need to

Hello all. I have a dahdi card with 2 FXO and 1 FXS. I'm able to make calls without any problem. However, when I have an incoming call, I see the following message on the asterisk console: -- Starting simple switch on 'DAHDI/1-1' -- Executing [s at DID_trunk_1:1] ExecIf("DAHDI/1-1", "1?SetCallerPres(unavailable)") in new stack -- Auto fallthrough,

I have just installed Rmpi on a Suse 9.1 linux cluster with openmpi-1.0.1. I am trying the example included below from the tutorial website. However, I keep getting the following error: > # Load the R MPI package if it is not already loaded. > if (!is.loaded("mpi_initialize")) { + library("Rmpi") + } > > # Spawn as many slaves as possible >

Hi there, I build a samba 4.0.11 on a Debian Wheezy from source, joined a existing AD (samba works with internal dns) and have this smb.conf: ======= # Global parameters [global] workgroup = DOMAIN realm = DOMAIN.local netbios name = SAMBA1 server role = active directory domain controller allow dns updates = nonsecure dns recursive queries = yes

Hi all, suppose I've got a vector y with some data (from a repeated measure design) observed given the conditions in f1 and f2. I've got a model with two unknown fix constants a and b which tries to predict y with respect to the values in f1 and f2. Here is an exsample # "data" y <- c(runif(10, -1,0), runif(10,0,1)) # f1 f1 <- rep(c(-1.4, 1.4), rep(10,2)) # f2 f2 <-

I'd like to know if there is any known project doing obfucated code generation or software watermarking in LLVM. The [obfucation/software watermarking] in machine instruction level usually requires to insert dead code, constant "unfolding", computationally intensive "opaque predicate", redundant calculation, duplicated calculation, etc, which all make the program

Hello, I use dovecot + dspam and a very simple global sieve script : require "fileinto"; if header :contains "X-DSPAM-Result" "Spam" { fileinto "SPAM"; stop; } with dovecot 1.0 all run fine, but moving to 1.1 I experience this in maillog : Oct 13 10:31:52 h8h1 deliver(ml at sd2i.com): msgid=<8a24c15885037554724ff966f5458592 at

Hello, Greg. You wrote Saturday, May 6, 2006, 10:54:19 PM: GP> Is it possible to build using MINGW, but without using msys? GP> All along I've been assuming that I needed msys. Unfortunately, no (especially, if you want to build gcc). LLVM and gcc uses auto* machinery, which depends on sh, sed, sort, etc. So, you should use (at least for configure) some amount of

On Fri, Oct 3, 2008 at 3:23 AM, Martin Maechler <maechler at stat.math.ethz.ch> wrote: > a much better (and much less error-prone) idea would be to install > R 2.8.0 alpha even now. > It will become 'beta' early next week. > > We are asking the R community to please install and use > pre-release versions of R (if you can / are allowed to) > at least from beta

http://bugzilla.netfilter.org/show_bug.cgi?id=619 Summary: If /proc/sys/kernel/modprobe is absent, errno is clobbered in get_modprobe Product: iptables Version: 1.3.5 Platform: All OS/Version: All Status: NEW Severity: normal Priority: P1 Component: iptables AssignedTo: laforge

Dirk Eddelbuettel and Albrecht Gephardt have created many Debian packages of R packages from CRAN and other archives. I wanted to install all these Debian packages on a machine running the Debian testing distribution. One way to do this is to search (using the apt-cache program) for all Debian package names that begin with 'r-', extract the package name, and concatenate all those names

Hi, I think it's an awesome idea to make sure all names are logical. It is an essential feature of a good API to have logical naming :) > I really dislike that all the files and classes in the MC library > start with MC. This is c++, not c :( On a similar note, all the classes in clang/CodeGen are prefixed with CG or even CodeGen, could those be renamed as well? And speaking of the