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535 bytes added ,  21:50, 11 February 2008
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=== DVD discs ===
(Need The DVDs are encrypted to add text here)avoid analysis, and signed to avoid modifications. The encryption is a symmetric crypto, AES. Symmetric means that the same key is used for both encryption and decryption. The disc is signed by building SHA-1 hashes of small parts of the disc, then aggregating these hashes into a hierarchical structure, which is finally signed with a asymmetric crypto. This solution is chosen for efficiency, since asymmetric cryptos are extremely slow. For more details, see [[Wiidisc#Partition_Data|Partition Data info on the Wiidisc page]].
=== Savegames on SD cards ===
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