r/cryptography

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r/crypto
101k  subs
Cryptography is the art of creating mathematical assurances for who can do what with data, including but not limited the classical example of encrypting messages so that only the key-holder can read it. Cryptography lives at an intersection of math, programming, and computer science. This subreddit covers the theory and practice of modern and *strong* cryptography, and it is a technical subreddit focused on the algorithms and implementations of cryptography.
https://reddit.com/r/crypto/
r/codes
26k  subs
Hiding data, cracking codes, finding hidden messages. We welcome posts that aren't as suitable for /r/crypto, such as basic cipher-cracking challenges and discussions of simple data hiding.
https://reddit.com/r/codes/
r/netsec
320k  subs
A community for technical news and discussion of information security and closely related topics.
https://reddit.com/r/netsec/
r/compsci
586k  subs
Computer Science Theory and Application. We share and discuss any content that computer scientists find interesting. People from all walks of life welcome, including hackers, hobbyists, professionals, and academics.
https://reddit.com/r/compsci/
r/hacking
787k  subs
A subreddit dedicated to hacking and hackers. Constructive collaboration and learning about exploits, industry standards, grey and white hat hacking, new hardware and software hacking technology, sharing ideas and suggestions for small business and personal security.
https://reddit.com/r/hacking/
r/security
99k  subs
A friendly and professional place for discussing computer security.
https://reddit.com/r/security/
r/privacy
484k  subs
The intersection of technology, privacy, and freedom in a digital world.
https://reddit.com/r/privacy/
r/linux
410k  subs
All things Linux and GNU/Linux -- this is neither a community exclusively about the kernel Linux, nor is exclusively about the GNU operating system.
https://reddit.com/r/linux/
r/HowToHack
174k  subs
Welcome to the guide by Zempirians to help you along the path from a neophyte to an elite... From here you will learn the resources to expand your knowledge and from there you can access our stronger resources for hands on training and wargames.... Free Public Access to Zempirians Training Lab - http://training.zempirians.com
https://reddit.com/r/HowToHack/
r/TOR
74k  subs
News and discussion about the Tor anonymity software. New to Tor? Please read the Tor FAQ!
https://reddit.com/r/TOR/
A moderated community dedicated to all things reverse engineering.
https://reddit.com/r/ReverseEngineering/
r/ethereum
444k  subs
Next-generation platform for decentralised applications.
https://reddit.com/r/ethereum/
r/Python
399k  subs
news about the dynamic, interpreted, interactive, object-oriented, extensible programming language Python
https://reddit.com/r/Python/
r/sysadmin
361k  subs
A reddit dedicated to the profession of Computer System Administration.
https://reddit.com/r/sysadmin/
r/Bitcoin
1m  subs
A community dedicated to Bitcoin, the currency of the Internet. Bitcoin is a distributed, worldwide, decentralized digital money. Bitcoins are issued and managed without any central authority whatsoever: there is no government, company, or bank in charge of Bitcoin. You might be interested in Bitcoin if you like cryptography, distributed peer-to-peer systems, or economics. A large percentage of Bitcoin enthusiasts are libertarians, though people of all political philosophies are welcome.
https://reddit.com/r/Bitcoin/
A subreddit for all questions related to programming in any language.
https://reddit.com/r/learnprogramming/
r/onions
139k  subs
The Best Parts of the Anonymous Internet | Tor Onion Routing Hidden Services | .onions
https://reddit.com/r/onions/
r/btc
268k  subs
/r/btc was created to foster and support free and open Bitcoin discussion, Bitcoin news, and exclusive AMA (Ask Me Anything) interviews from top Bitcoin industry leaders! Bitcoin is the currency of the Internet. A distributed, worldwide, decentralized digital money. Unlike traditional currencies such as dollars, bitcoins are issued and managed without the need for any central authority whatsoever.
https://reddit.com/r/btc/
Subreddit for students or anyone studying Network Security. This is the place to ask questions regarding your netsec homework, or perhaps you need resources for certain subjects, either way you'll find them here! If you have info or resources you want added to resources, just let us know!
https://reddit.com/r/netsecstudents/
r/algorithms
61k  subs
Computer Science for Computer Scientists
https://reddit.com/r/algorithms/
The subreddit for the C programming language
https://reddit.com/r/C_Programming/
r/Monero
160k  subs
This is the official subreddit of Monero (XMR), a secure, private, untraceable currency that is open-source and freely available to all.
https://reddit.com/r/Monero/
A subreddit for discussing the Raspberry Pi ARM computer and all things related to it.
https://reddit.com/r/raspberry_pi/
r/archlinux
96k  subs
For users of the much loved Linux distro, Arch Linux.
https://reddit.com/r/archlinux/