chrismoos

Joined 17 years ago

Karma
103
Submissions
62
Member since
Sep 27
https://www.chrismoos.com

[ my public key: https://keybase.io/chrismoos; my proof: https://keybase.io/chrismoos/sigs/Y1UrZmyWyMrBiodcSN-KITMlbwEIZvfp417vYav6qys ]

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Recent submissions

Comment · 6 months ago
The specs are public from 3gpp2 (https://www.3gpp2.org/). I didn't have to reverse engineer but in the initial RF bringup, even with the specs, it took me a while and had to pick up some old CDMA test equipment to capture actual BTS signals to help me understand it better.
Comment · 8 months ago
Yeah maybe at some point -- I'd need to learn about all the formal stuff though first, it's new to me. For now it's cocotb test benches and also I run it through the Klaus test (https://github.com/Klaus2m5/6502_65C02_functional_tests) which is pretty comprehensive. There are definitely edge cases though that I found when actually running it on physical hardware that my tests didn't find (i.e ran into some IRQ servicing issues), so not easy to be 100%.
Comment · 9 years ago
This is classic -- one of the main reasons I started programming in C.
Comment · 9 years ago
InAuth | Santa Monica, CA or Remote | Site Reliability Engineer

InAuth is looking for SREs to help operate and scale our real-time mobile and browser security platform. We use a variety of technologies and are looking for people with experience in:

* AWS * Infrastructure Automation (Terraform, CloudFormation, etc,.) * Chef, Salt, etc. * Golang / Java / Ruby * Highly-available and fault-tolerant architectures

The role has a lot of opportunity for growth as the SRE team is new. We have an office in Santa Monica, CA but we also are willing to have someone remote (if they are the right fit).

If you are interested or have questions email Chris Moos at: moos [at] inauth.com

Comment · 10 years ago
Comment · 10 years ago
One of the main differences is this one uses lookup tables for faster decoding of Huffman compressed data as opposed to using a tree (which is what the stdlib one uses). It also offers some additional encoding options for users that want more control of header field indexing.
Comment · 11 years ago
It would be possible but not that straightforward, you can change how log4j loads/finds properties file, for example, so it would be hard to enforce that.

Its pretty easy to unpack an APK, change log4j stuff to DEBUG, repack, and run vs. unpacking APK, disassemble class files, go through files, find how key is stored, routine for deobfuscation, etc,.

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