This eliminates the possibility of a transaction being repudiated, or invalidated by incorporating a Digital Signature that a third party can verify as correct. Similar in concept to registered mail, the recipient of data re-hashes it, verifies the Digital Signature, and compares the two to see that they match. Authorization and Delegation Authorization is the processes of allowing access to specific data within a system. Delegation is the utilization of a third party to manage and certify each of the users of your system. This is the independent examination and recording of records and activities to ensure compliance with established controls, policy, and operational procedures, and to recommend any indicated changes in controls, policy, or procedures.
Management Is the oversight and design of the elements and mechanisms discussed above and below.
Plain text is turned into cipher text via an algorithm, then decrypted back into plain text using the same method. Cryptography is the method of converting data from a human readable form to a modified form, and then back to its original readable form, to make unauthorized access difficult. This unique identifier is then checked by the receiver of the data. The original data is called unencrypted data or plain text .The modified data is called encrypted data or cipher text . The process of converting the unencrypted data is called encryption .