Intel Cascade Cipher
Block cipher / From Wikipedia, the free encyclopedia
In cryptography, the Intel Cascaded Cipher is a high bandwidth block cipher, used as an optional component of the Output Content Protection DRM scheme of the Microsoft Windows Vista operating system. The cipher is based on Advanced Encryption Standard (AES) operating in counter mode, used for generating keys, and a 3-round version of Serpent for encrypting actual content.
Quick Facts General, Designers ...
General | |
---|---|
Designers | Ernie Brickell, Gary Graunke |
Derived from | AES, Serpent |
Cipher detail | |
Key sizes | 128 bits |
Block sizes | 128 bits |
Structure | AES-128 in counter mode supplying key material to Serpent |
Rounds | 10 rounds of AES, 3 (out of 32) rounds of Serpent |
Best public cryptanalysis | |
Specifications not published |
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The Cascaded Cipher has not been subject to an open peer review process. A license for using the Cascaded Cipher is required from Intel Corporation.