A tiny and simple C library without dependencies that compute SHA256 digest from a file. Comes with a test program that compute the SHA256 disgest of an input file.
To use this library you need to add these files to your project: prog_bar.c,prog_bar.h,
sha256.c and sha256.h. After that, just put #include <sha256.h> on you main program.
These are the functions available:
//Return 32 bytes digest of Data array on success. Return NULL if fail.
//VerboseStatus = SHA256_VERBOSE --> Will print progress
//VerboseStatus = SHA256_NOT_VERBOSE --> Will not print progress
uint8_t *sha256_data(uint8_t *Data, uint64_t DataSizeByte, uint8_t VerboseStatus);
//Return 32 bytes digest of file on success. Return NULL if fail.
//VerboseStatus = SHA256_VERBOSE --> Will print progress
//VerboseStatus = SHA256_NOT_VERBOSE --> Will not print progress
uint8_t *sha256_file(const char *Filename, uint8_t VerboseStatus);The function sha256_data() are implemented on example program test.c
The function sha256_file() are implemented on example program test2.c
The example programs can be compiled by runing $ make on terminal. For compilation
you need to have gcc and make instralled on your machine. If you do not have it,
you can install with the command $ sudo apt install build-essential on Ubuntu.
To build you need make and gcc copiler. After just run: $ make