Anyone that you allow to decrypt your data must possess the same key and IV and use the same algorithm. A new key and IV is automatically created when you create a new instance of one of the managed symmetric cryptographic classes using the parameterless Create() method. NET require a key and a new IV to encrypt and decrypt data. The symmetric encryption classes supplied by.
This section describes how to generate and manage keys for both symmetric and asymmetric algorithms. The public key can be made known to anyone, but the decrypting party must only know the corresponding private key. Asymmetric algorithms require the creation of a public key and a private key. The IV doesn't have to be secret but should be changed for each session.
You must keep this key secret from anyone who shouldn't decrypt your data. Symmetric algorithms require the creation of a key and an initialization vector (IV). Creating and managing keys is an important part of the cryptographic process.