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Line 46: − + − − ==MAC== − For CBC mode, the output MAC is the last 16-bytes of the ciphertext. For the other modes, this field is the same as the input IV/CTR. Line 90:
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→Key Types
|-
|-
| 6
| 6
| Algorithm Type (0..5)
| u8 Algorithm Type (0..5)
|-
|-
| 7
| 7
| Key Type (0..7)
| u8 Key Type (0..7)
|-
|-
| 8
| 8
|-
|-
| 2-5
| 2-5
| MAC
| Output IV / CTR: this is the IV/CTR which would be used if the crypto operation were to continue.
|}
|}
==Algorithm Types==
==Algorithm Types==
| 1
| 1
| 0x2D
| 0x2D
| Used to generate the [[NWM_Services|UDS]] local-WLAN CCMP key.
| Used to generate the UDS [[NWM_Services|local-WLAN]] CCMP key.
|-
|-
| 2
| 2
| 5
| 5
| 0x39
| 0x39
| This is used by the [[Download Play]] module.
| This is used by the [[Download Play]] module for calculating a 32bit checksum over the entire UDS application data-fames, stored in the DLP data-frame header.
|-
|-
| 6
| 6
| 0x2E
| 0x2E
| ?
| This is used by the [[StreetPass]] CECD module to generate the CCMP key passed to [[NWM_Services|nwm::CEC]] commands, when beginning StreetPass communications.
|-
| 7
|
| Invalid
|-
| 8
| 0x36
| This is used by the friends module.
Support for this keytype was added with the NATIVE_FIRM updated with [[2.2.0-X]]. When the running NATIVE_FIRM doesn't support this keytype, the result is the same as using keytype7.
|-
| 9
| 0x39
| This is used by the NFC module.
Support for this keytype was added with the NATIVE_FIRM updated with [[9.3.0-21|9.3.0-X]]. When the running NATIVE_FIRM doesn't support this keytype, the result is the same as using keytype7. Before selecting this keyslot, Process9 writes a keyY from the Process9 .(ro)data section(keydata is different for retail/dev units) to this keyslot. Once finished with crypto, Process9 restores the original keyY to this keyslot.
|-
| >=10
|
| Invalid, same as keytype7.
|}
|}
=Description=
This is used to encrypt/decrypt data via the [[AES]] engine. AES-CCM is not supported by this command, [[PSPXI:EncryptSignDecryptVerifyAesCcm]] must be used for AES-CCM instead.