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- MultiSwap abstract "In cryptography, MultiSwap is a block cipher/MAC created by Microsoft in 1999 as part of its Windows Media DRM service (WMDRM). Microsoft's internal name for the algorithm is not publicly known; it was dubbed MultiSwap in a 2001 report on WMDRM under the pseudonym "Beale Screamer".The cipher has a block size of 64 bits, but the two halves are processed nearly separately. All arithmetic operations are performed mod 232. In the encryption process, each half block has added to it the output of the previous half block. Next it undergoes 5 multiplications by odd 32-bit subkeys, each followed by a swap of its 16-bit halves. Then a final subkey is added to it. As the half blocks use separate subkeys, and the multipliers are forced to be odd, the total key size is 374 bits. The name MultiSwap comes from the cipher's multiplications and swaps. WMDRM uses this algorithm only as a MAC, never for encryption.Borisov, et al. applied a multiplicative form of differential cryptanalysis to break MultiSwap.".
- MultiSwap wikiPageExternalLink 672650.html.
- MultiSwap wikiPageExternalLink ms-drm.htm.
- MultiSwap wikiPageExternalLink multiswap.
- MultiSwap wikiPageID "13358149".
- MultiSwap wikiPageRevisionID "544331668".
- MultiSwap blockSize "64".
- MultiSwap cryptanalysis "The differential cryptanalysis of Borisov, et al. requires about 213 chosen plaintexts or about 222 known plaintexts".
- MultiSwap designers Microsoft.
- MultiSwap hasPhotoCollection MultiSwap.
- MultiSwap keySize "374".
- MultiSwap name "MultiSwap".
- MultiSwap publishDate "April 1999".
- MultiSwap subject Category:Broken_block_ciphers.
- MultiSwap subject Category:Digital_rights_management_systems.
- MultiSwap type Artifact100021939.
- MultiSwap type DRMSystems.
- MultiSwap type Instrumentality103575240.
- MultiSwap type Object100002684.
- MultiSwap type PhysicalEntity100001930.
- MultiSwap type System104377057.
- MultiSwap type Whole100003553.
- MultiSwap comment "In cryptography, MultiSwap is a block cipher/MAC created by Microsoft in 1999 as part of its Windows Media DRM service (WMDRM). Microsoft's internal name for the algorithm is not publicly known; it was dubbed MultiSwap in a 2001 report on WMDRM under the pseudonym "Beale Screamer".The cipher has a block size of 64 bits, but the two halves are processed nearly separately. All arithmetic operations are performed mod 232.".
- MultiSwap label "MultiSwap".
- MultiSwap sameAs m.03c2s_s.
- MultiSwap sameAs Q6934537.
- MultiSwap sameAs Q6934537.
- MultiSwap sameAs MultiSwap.
- MultiSwap wasDerivedFrom MultiSwap?oldid=544331668.
- MultiSwap isPrimaryTopicOf MultiSwap.