What is the output of AES?
AES uses a 128-bit block size, in which data is divided into a four-by-four array containing 16 bytes. Since there are eight bits per byte, the total in each block is 128 bits. The size of the encrypted data remains the same: 128 bits of plaintext yields 128 bits of ciphertext.
Can AES take arbitrary length input?
AES is the block cipher, the underlying building block of an encryption system. By itself it can only encrypt a single block of data (16 bytes), so cryptographers have created several “modes of operation” that enable us to encrypt a plaintext of arbitrary length.
What are the functions of an AES key?
In cryptography, and in security in general, details often matter. AES is a pair of functions, each of which takes a key and a 128-bit message and produces a 128-bit message. The two functions are called encryption and decryption, and they are inverses. The key must be exactly 128-bit, 192-bit or 256-bit long.
What is an AES / EBU XLR output and how can I use it?
AES/EBU and SPDIF are both digital outputs, not analog. They would be used to connect directly to a sound card or recorder that has a matching digital in. RE: What is an AES/EBD XLR output and how can I use it?
Why does AES always return the same ciphertext?
Typically those modes take an IV (similar to a salt) which should be different for each message you encrypt. This difference in the IV leads to a totally different encrypted message. Encrypting the same message with the same IV and key returns always the same ciphertext.
Why do we use an initialization vector in AES?
In particular, if we are to encrypt two messages with the same key, we usually do not want to reveal whether the two messages were identical or not, so something has to change, somewhere, between the two encryptions. Most modes of operation use an initialization vector which is where the non-determinism is injected.