$\begingroup$ What the "key" of an encryption scheme is, is not very precisely defined apart from whatever piece of data needs be kept secret for the encryption to be secure. In most cryptographic functions, the key length is an important security parameter. The key size for TripleDES is 168 bits. */ SELECT * FROM sys.dm_database_encryption_keys WHERE encryption_state = 3; GO For more information about the SQL Server log-file architecture, see The Transaction Log (SQL Server). Other ciphers, such as those used for symmetric key encryption, can use all possible values for a key of a given length, rather than a subset of those values. 5 // v2.0: Remarks. For example you can use the key of 16 character,24 character or 32 character. 128 is the length of the key. A hacker or cracker will require 2 256 different combinations to break a 256-bit encrypted message, which is virtually impossible to be broken by even the fastest computers.. The key size is then the bit length of this piece of data. Easily compare the minimum cryptographic key length recommended by different scientific reports and governments. Before a database encryption key changes, the previous database encryption key … The reason is that for some public key n the result is some integer c with 0<=c