IACR Events - Calendar of events related to research in cryptology maintainer by the International Association for Cryptologic Research (IACR).
r/crypto - Crypto on Reddit.
Crypto Blogs - List of cryptology related blogs to follow using your RSS client.
Hack Curio - Videoportal into hackerdom that helps explain why hacking is one of the most important phenomena of global culture and politics in the late 20th and early 21st century.
CryptoHack - A fun platform for learning cryptography. The emphasis is on breaking bad implementations of "modern" crypto, such as AES, RSA, and Elliptic-curve. The format is a series of puzzles that teach small lessons and motivate further research.
CryptoPals - Problems to solve derived from weaknesses in real-world systems and modern cryptographic constructions. When you're finished, you'll not only have learned a good deal about how cryptosystems are built, but you'll also understand how they're attacked.
Library genesis - Search engine for articles and books on various topics, which allows free access to content that is otherwise paywalled or not digitized elsewhere.
The Big Internet Museum - Interactive and ever-growing collection about the Internet and its remarkable graphic interface: the World Wide Web
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