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DrinkOrDie reportedly disassembled the object code of the Xing DVD player to obtain a player key. The group that wrote DeCSS, including Johansen, came to call themselves Masters of Reverse Engineering and may have obtained information from DrinkOrDie. [2] The CSS decryption source code used in DeCSS was mailed to Derek Fawcus before DeCSS was ...
poem key - Keys used by OSS agents in World War II in the form of a poem that was easy to remember. See Leo Marks. public/private key - in public key cryptography, separate keys are used to encrypt and decrypt a message. The encryption key (public key) need not be kept secret and can be published.
The discs have a volume identifier called VID , the Encrypted Title Key and a decryption key (Media Key Block). Process to obtain the Media key, from the MKB and the Device Keys. The players have some keys, according to each model, called Device Keys, which are granted by the AACS organization. In the reproduction moment, one of these keys ...
Asymmetric keys differ from symmetric keys in that the algorithms use separate keys for encryption and decryption, while a symmetric key’s algorithm uses a single key for both processes. Because multiple keys are used with an asymmetric algorithm, the process takes longer to produce than a symmetric key algorithm would.
Stream ciphers combine a secret key with an agreed initialization vector (IV) to produce a pseudo-random sequence which from time-to-time is re-synchronized. [2] A "Chosen IV" attack relies on finding particular IV's which taken together probably will reveal information about the secret key.
The basic concept of the three-pass protocol is that each party has a private encryption key and a private decryption key. The two parties use their keys independently, first to encrypt the message, and then to decrypt the message. The protocol uses an encryption function E and a decryption function D.
In a symmetric key algorithm (e.g., DES, AES), the sender and receiver have a shared key established in advance: the sender uses the shared key to perform encryption; the receiver uses the shared key to perform decryption. Symmetric key algorithms can either be block ciphers or stream ciphers. Block ciphers operate on fixed-length groups of ...
Key agreement and key transport are the two types of a key exchange scheme that are used to be remotely exchanged between entities . In a key agreement scheme, a secret key, which is used between the sender and the receiver to encrypt and decrypt information, is set up to be sent indirectly.