How Do Ratchets Protect Your Data? | by Prof Bill Buchanan OBE | ASecuritySite: When Bob Met Alic….>
– Prof Bill Buchanan OBE
Ratchets protect your data by making sure that any data transferred between two entities is sent securely and cannot be reused by an attacker. A ratchet is a security mechanism used in cryptography to ensure that data transferred between two entities is sent securely and can not be reused by an attacker. The ratchet works by exchanging cryptographic keys (also known as ratchet keys) between the two participants in the communication. The ratchet keys are used to encrypt and decrypt data exchanged between the two. The ratchet keys are also changed periodically in order to prevent an attacker from being able to reuse the same key. The ratchet also prevents data from being modified in transit by introducing a new cryptographic pattern for each packet that is sent. This helps to ensure that data transferred between two entities remains secure and unaltered.
Link: https://medium.com/asecuritysite-when-bob-met-alice/how-do-ratchets-protect-your-data-bf4ad5d5c142