A hash or scatter function calculates a check value/hash value or hash for a message. The check value has a defined length independent of the message.
Hashes are usually used to ensure the integrity of data.
Thus hash functions should have the following properties:
collision resistant: different messages generate different hashes
irreversible: the message can only be extracted from the hash value with great effort.
GC Wizard can calculate hashes according to the following methods:
- Message Digest: MD2, MD4, MD5
- Secure Hash Algorithm: SHA, SHA-1, SHA-2, SHA-3