Cryptomeria cipher [SEP] designer
Cryptomeria cipher
The Cryptomeria cipher, also called C2, is a proprietary block cipher defined and licensed by the 4C Entity. It is the successor to CSS algorithm (used for DVD-Video) and was designed for the CPRM/CPPM digital rights management scheme which are used by DRM-restricted Secure Digital cards and DVD-Audio discs.
Cipher details.
The C2 symmetric key algorithm is a 10-round Feistel cipher. Like DES, it has a key size of 56 bits and a block size of 64 bits
Cryptomeria (disambiguation)
Cryptomeria may refer to:
- "Cryptomeria", a monotypic genus of conifer in the cypress family
- "Cryptomeria" (moth), a genus of moth
- Cryptomeria cipher, a cryptographic cipher