Exhaustive list of SPDX (Software Package Data Exchange) licenses: https://spdx.org/licenses/
Iulia Danilov reol224
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nicolasdao
/ open_source_licenses.md
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May 2, 2024 18:16
What you need to know to choose an open source license.
fakhrullah
/ list-of-hacking-games.md
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April 30, 2024 05:11
List of hacking game, wargame or capture the flag (CTF) for some one who want to learn hacking.
I am programmer who want to learn hacking. I start by playing online wargame. Here I list free online wargame available to anyone who want to learn hacking.
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| /** | |
| * Luhn Class is an implementation of the Luhn algorithm that checks validity of a credit card number. | |
| * | |
| * @author <a href="http://www.chriswareham.demon.co.uk/software/Luhn.java">Chris Wareham</a> | |
| * @version Checks whether a string of digits is a valid credit card number according to the Luhn algorithm. 1. Starting with the second to last digit and | |
| * moving left, double the value of all the alternating digits. For any digits that thus become 10 or more, add their digits together. For example, | |
| * 1111 becomes 2121, while 8763 becomes 7733 (from (1+6)7(1+2)3). 2. Add all these digits together. For example, 1111 becomes 2121, then 2+1+2+1 is | |
| * 6; while 8763 becomes 7733, then 7+7+3+3 is 20. 3. If the total ends in 0 (put another way, if the total modulus 10 is 0), then the number is valid | |
| * according to the Luhn formula, else it is not valid. So, 1111 is not valid (as shown above, it comes out to 6), while 8763 is valid (as shown | |
| * above, it comes ou |