Questions tagged [base64]
Base64 is an encoding scheme (with some variations in the presentation) that represents binary data in an ASCII string format.
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Bare bones base 64 encoding/decoding
I wrote a bare-bones, no fluff, base 64 library in C. My goal was to make it as small as possible. I'm wondering if there are any further size optimizations I can make (without sacrificing too much ...
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Rust - Hexadecimal to Base64 conversion (Cryptopals challenge 1)
Here's my solution to the first challenge of the Cryptopals Crypto Challanges (https://cryptopals.com/sets/1/challenges/1).
I decided to use a cargo workspace to structure my project with the library ...
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Base64 encoder in Assembly x86-64 Linux language
We were asked to create a Base64 encoder for Assembly x86-64 on Linux. Was wondering how my code below could be improved, be it notation or anything else. We only had Assembly for 3 months so I'm not ...
user197730
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C code to convert hexadecimal string to base64
I've written a program to convert a hex-encoded string to base64, and here is my code. My main concerns are:
Optimizations - Is my code sufficiently optimized and if any more optimization is possible....
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Function that decodes all values of a given object from Base64
I have function decodeVals in NodeJS that decodes all of the values of the given object from Base64 to ASCII. This is achieved by traversing the values of said ...
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SVG hue navigation bar
I've created a navigation spacer bar that has a hue background. To separate different aspects of content it was imported to Inkscape then exported as an SVG. It uses base64 image which I’m not sure is ...
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base64 iterators
Was a tiny bit bored reading authentication protocols.
Needed to clear the mind and read some base64 encode text.
So I implemented these iterators that will encode or decode base64 text.
Not sure ...
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Converting a natural number to a permutation matrix in Python. How to speed it up perhaps avoiding messing around with lists, sets and dicts?
It is something a bit complex to explain here, but the code bellow takes a 128-bit number and converts it into a permutation matrix, a beast which I have already faced before. The matrix is ...
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AES-256-CBC encrypt and decrypt files in Python
I wrote a simple algorithm to encrypt and decrypt files in Python using aes-256-cbc.
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Cryptopals first challenge - hexadecimal to base64
I've just started the cryptopals-challenge, and now wanted to show my solution to the first challenge here:
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user214772
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base64 encoding and decoding tool
I wanted to understand how base64 encoding (and decoding) works so I implemented this tool in the spirit of "classic UNIX tools" (read from stdin, write to stdout).
I'd like to get general feedback ...
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Convert a hex string to base64
I wrote a program that converts a hex-encoded string to base64. It's my solution to the first of the Cryptopals challenges.
My main concerns are:
Portability. I don't want to rely on implementation-...
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Hex string to Base64 in Haskell
This is my take on the first challenge on the cryptopals crypto challenges list. I think that i made it quite simple but i feel like it is possible to optimize it further. Any suggestion?
The code:
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Bash script to encode images in base64 and generate a CSS file from them
These are the first lines of code I've ever written. I've been interested in the idea of learning to program for quite a while, but never really pulled the trigger, and now I've been playing around ...
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Translating Python to Rust: reading a Salesforce ID from a string
As a first project in Rust, I'm translating an existing, working piece of Python code. This code's purpose is to convert a 15-character Salesforce Id (which is guaranteed to be ASCII, exactly 15 bytes ...
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