duplicates = multiple editions
A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen
A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen
Mikael Muszynski linduxed
bishboria
/ springer-free-maths-books.md
Last active
November 28, 2025 17:29
Springer made a bunch of books available for free, these were the direct links
paragonie-scott
/ crypto-wrong-answers.md
Last active
November 21, 2025 14:34
An Open Letter to Developers Everywhere (About Cryptography)
Hello software developers,
Please check your code to ensure you're not making one of the following mistakes related to cryptography.
- Writing your own home-grown cryptography primitives (For example: Mifare Classic)
- Exception: For the sake of learning, but don't deploy it in production.
- Using a fast hash function (e.g. MD5, SHA256) for storing passwords. Use bcrypt instead.
- Not using a cryptographically secure random number generator
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| $stack, $draws = [], {} | |
| def method_missing *args | |
| return if args[0][/^to_/] | |
| $stack << args.map { |a| a or $stack.pop } | |
| $draws[$stack.pop(2)[0][0]] = args[1] if args[0] == :< | |
| end | |
| class Array | |
| def +@ |
stevenharman
/ exit_code_matches.rb
Created
April 10, 2012 22:39
Rspec matchers for testing exit codes.
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| require 'rspec/expectations' | |
| module ExitCodeMatchers | |
| extend RSpec::Matchers::DSL | |
| matcher :terminate do | |
| actual = nil | |
| match do |block| | |
| begin |