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defcon | rya.nc
https://rya.nc/tag/defcon.html
Hack All The Things. Why I'm releasing a brainwallet cracker at DEFCON 23. I will be giving a talk at DEF CON. As part of that talk, I will be releasing a fast [1]. Brainwallet cracker. I'm writing this post to provide a little insight as to why I'm giving away a tool that could be used to steal. I also hope that people who are currently using brainwallets will take notice and move to a more secure storage method. Site Contents 2016 Ryan Castellucci. Theme based on Open Sourcerer. The Open Learning Centre.
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Why I'm releasing a brainwallet cracker at DEFCON 23 | rya.nc
https://rya.nc/defcon-brainwallets.html
Hack All The Things. Why I'm releasing a brainwallet cracker at DEFCON 23. I will be giving a talk at DEF CON. As part of that talk, I will be releasing a fast [1]. Brainwallet cracker. I'm writing this post to provide a little insight as to why I'm giving away a tool that could be used to steal. I also hope that people who are currently using brainwallets will take notice and move to a more secure storage method. By my estimates, a. Should be more than enough time for a botnet. The idea is that if someo...
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ssh | rya.nc
https://rya.nc/tag/ssh.html
Hack All The Things. Using GitHub with multiple accounts or deploy keys. GitHub's implementation of git over ssh identifies accounts (for purposes of access control) solely by ssh public key. As a consequence, a particular public key can be associated with, at most, one account. Deploy keys. Are even more restricted - they can only be associated with a single repository. While ssh can try several keys, GitHub doesn't know what you're trying to access until. Never forget to start screen again.
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python | rya.nc
https://rya.nc/tag/python.html
Hack All The Things. Sometimes I do things for no real reasons other than because I can and/or it amuses me. For example, embedding a snarky message into my HTTPS certificate. Site Contents 2016 Ryan Castellucci. Theme based on Open Sourcerer. The Open Learning Centre. Header image based on Green circuit boards.
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crypto | rya.nc
https://rya.nc/tag/crypto.html
Hack All The Things. Forensic Bitcoin cracking: as easy as 1, 3, 7. Since its release at DEFCON 23, I've done quite a bit of work on brainflayer. First, I added support for a few other brainwallet-like schemes and hex-encoded private keys. Then, in October, I integrated some code provided by Dr. Nicolas T. Courtois. That sped up brainflayer by about 150%. With a subsequent optimization that yielded a further 65% speedup, it is now over four times faster than the initial release. Sometimes I do things for...
rya.nc
Using GitHub with multiple accounts or deploy keys | rya.nc
https://rya.nc/multi-github-accts.html
Hack All The Things. Using GitHub with multiple accounts or deploy keys. Note: You are viewing this blog post without the intended style information, which may result in formatting issues. GitHub's implementation of git over ssh identifies accounts (for purposes of access control) solely by ssh public key. As a consequence, a particular public key can be associated with, at most, one account. Deploy keys. You authenticate, so a workaround is required to select the right key. Ssh-keygen -b 2048 -t rsa -f ...
rya.nc
bitcoin | rya.nc
https://rya.nc/tag/bitcoin.html
Hack All The Things. Forensic Bitcoin cracking: as easy as 1, 3, 7. Since its release at DEFCON 23, I've done quite a bit of work on brainflayer. First, I added support for a few other brainwallet-like schemes and hex-encoded private keys. Then, in October, I integrated some code provided by Dr. Nicolas T. Courtois. That sped up brainflayer by about 150%. With a subsequent optimization that yielded a further 65% speedup, it is now over four times faster than the initial release. I've seen a lot of people...
rya.nc
imagemagick | rya.nc
https://rya.nc/tag/imagemagick.html
Hack All The Things. How I made my header image. I'm pretty happy with how my header image (seen above) turned out. Here's how it was made:. Site Contents 2016 Ryan Castellucci. Theme based on Open Sourcerer. The Open Learning Centre. Header image based on Green circuit boards.
rya.nc
brainwallets | rya.nc
https://rya.nc/tag/brainwallets.html
Hack All The Things. Why I'm releasing a brainwallet cracker at DEFCON 23. I will be giving a talk at DEF CON. As part of that talk, I will be releasing a fast [1]. Brainwallet cracker. I'm writing this post to provide a little insight as to why I'm giving away a tool that could be used to steal. I also hope that people who are currently using brainwallets will take notice and move to a more secure storage method. Site Contents 2016 Ryan Castellucci. Theme based on Open Sourcerer. The Open Learning Centre.
rya.nc
ssl | rya.nc
https://rya.nc/tag/ssl.html
Hack All The Things. HTTPS subresource validation fail. In the spring of 2014, I found a bug in several browsers, including Epiphany. They were loading subresources, such as scripts, from HTTPS servers without doing proper certificate validation. I tracked this down to some bad defaults in webkit which have since been. Sometimes I do things for no real reasons other than because I can and/or it amuses me. For example, embedding a snarky message into my HTTPS certificate. Theme based on Open Sourcerer.
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