An implementation of the hashing algorithm SHA-256 in C.

This code closely follows the pseudocode provided in the official documentation FIPS 180-4, Section 6.2.2, page 22.

Click here to view the demo video.

This video is also included in this repo under the name of demo-video.mp4

In your (Mac or Linux) Terminal or Windows Subsystem for Linux, run the following commands:

git clone https://github.com/kietatr/SHA256.git
cd SHA256
make

The make command will:

1. Compile the source code
2. Then run the compiled executable file main for you

There isn't a standard C implementation for SHA-256, so we settled with an implementation from amosnier, which has been reviewed with the Stack Exchange CODE REVIEW.

To time the code of my implementation, run:

make time-my-implementation

To time the code of amosnier's implementation, run:

make time-other-implementation