This core is a fully compliant implementation of the Message Digest Algorithm SHA-256. It computes a 256-bit message digest for messages of up to (264 – 1) bits. Simple, fully synchronous design with low gate count.
The OL_SHA256 core is a fully compliant hardware implementation of the SHA-256 algorithm, suitable for a variety of applications.
The SHA-256 algorithm is an upgraded version of the SHA-1 algorithm and it offers improved security. It operates on message blocks of 512 bits for which a 256-bit (8 x 32-bit words) message digest (hash value) is produced. Corresponding 32-bit words of the hash values from consecutive message blocks are added to each other to form the message of the whole message.
