All Questions
8 questions
1
vote
3
answers
158
views
Sign a message with a Bitcoin private key
I am writing code in C, and I need to do various operations with Bitcoin, from generating key pairs, to sign messages to post transactions. I found libraries for C++, but nothing in C that does all ...
- 19
1
vote
2
answers
988
views
Encryption and Decryption in C
I have written a program in C, which encrypts and decrypts a c-styled string (const char *) and print the result to stdout. It ...
- 543
8
votes
3
answers
3k
views
Simple hashing algorithm
TL;DR: The algorithm receives a string as input, allocate another string to be the final digest, and start working on them. For each char on the digest (a null character on a first moment), it XORs it ...
- 83
1
vote
1
answer
247
views
Hash function in C for sets and associative arrays
I wrote a non-cryptographic hash function in C, which I am hoping might be suitable for use in an implementation of hash sets or hash maps.
...
- 189
20
votes
1
answer
33k
views
Self-contained SHA-256 implementation in C
I have been looking for a SHA-256 implementation in C with no dependencies (preferably self-contained in a single C-file) with a permissive license but found none to my liking.
Since the Wikipedia ...
- 805
2
votes
1
answer
639
views
Hash function for a key of type structure
I need to implement a hash function for a key of type structure. This structure is as follows:
...
1
vote
1
answer
298
views
Quadratic probing and hashing - search for words in text files
I created a program for a college class. After I got it working, I wanted to improve it. As a beginner, it is probably a mess.
Description
It uses a HashFunction ...
- 31
2
votes
1
answer
115
views
Find files with similar contents
I'm not normally a C programmer but thought I'd take a shot at making something useful. This is a C utility I wrote to judge how similar several files are using the algorithm I think ...
- 123