How can we Secure Data with Hashing?
Hashing drastically increases the security of the data. There is no way to decrypting the data because we are not encrypting it. As I mentioned already it’s a one-way cryptographic function. A cryptographic hash function needs to have several crucial qualities to be considered useful, these include:
- Every hash is different from another.
- Same Hash value will be always produced for the same message.
- Impossible to decide input based on the hash value.
- Even a small change to the input whole hash will be changed. Hashing helps us to see if the data has tampered or not. For example, you have downloaded a piece of important information, to see if the data is changed or not, you can run the data through the hashing algorithm and compare the hash of the data and hash of the received data. If both the hashes are same the data is not changed and if the hash doesn’t match, the data is altered before you received it. more