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274 bytes added ,  20:22, 22 August 2012
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This file is transferred to the destination 3DS during a [[System Transfer]], the source 3DS then uses a new file retrieved from the shop server. The keyslots this keyY is loaded to is the keyslots used for SD data. This keyY is the console-unique portion of these 3 keyslots.
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This file is transferred to the destination 3DS during a [[System Transfer]], the source 3DS then uses a new file retrieved from the shop server. The keyslots this keyY is loaded to is the keyslots used for SD data. This keyY is the console-unique portion of these 3 keyslots. One of the keyslots initialized by this, is used for SD/NAND [[extdata]]. It's unknown where the first 8-bytes of the keyY is loaded from.
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The keyY is hashed with SHA256, the first 0x10-bytes from the hash is used for the SD card hex directory name under "/Nintendo 3DS/".