# SHA1 in C

SHA1 algorithm in C. A single function that reads a file and outputs it's sha1sum.

## How to use

This is a single header project. Only sha1.h needs to be included. Usage is shown in **example.c** file. So there are only 2 source files, sha1.h and example.c
To compile :

```
python3 flow
```

To clean:
```
python3 flow clean
```

The "library" is only adding: 

1. SHA1_Result struct to store result
2. SHA1_sha1file, a function to get sha1 of a file.
3. leftRotate32, a function to circular shift 32 bit unsigned integers.