AM:ImportTwlBackup: Difference between revisions

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|-

| 1

| ~~BufSize,~~ must be >=0x20000.

| Buffer Size (must be >= 0x20000)

|-

| 2

| u8 Operation

| u8, Operation

|-

| 3

| ~~Value~~ 0x10

| 0x10

|-

| 4

| Handle

| [[Filesystem_services|FSFILE]] Handle

|-

| 5

| ~~<nowiki>~~(~~BufSize~~<<8) | 12</nowiki>

| (Buffer Size << 4) <nowiki>|</nowiki> 0xC

|-

| 6

| ~~Buffer ptr, this input~~ buffer ~~contains the encrypted [[DSiWare_Exports|DSiWare]] export banner, header, and footer.~~

| Work buffer pointer

|}

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|}

=Operation ~~Values~~=

=Operation=

{| class="wikitable" border="1"

|-

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AM module uses [[Application_Manager_Services_PXI|AMPXI:DecryptDSiWareData]] for decrypting each DSiWare section. After decrypting a section via that command, AM module calculates a hash over the decrypted payload data for [[AMPXI:ValidateDSiWareSectionMAC]]. The footer hash for this section is then verified by calculating a hash over the cleartext data as well.

After AM module validates the header, AM module then uses [[AMPXI:ValidateDSiWareMovableSedHash]]. The footer ECDSA verification is handled by [[AMPXI:VerifyDSiWareFooter]]~~. The decrypted banner is written to inputbuffer+0~~.

After AM module validates the header, AM module then uses [[AMPXI:ValidateDSiWareMovableSedHash]]. The footer ECDSA verification is handled by [[AMPXI:VerifyDSiWareFooter]].

@@ Line 9: / Line 9: @@
 |-
 | 1
-| BufSize, must be >=0x20000.
+| Buffer Size (must be >= 0x20000)
 |-
 | 2
-| u8 Operation
+| u8, Operation
 |-
 | 3
-| Value 0x10
+| 0x10
 |-
 | 4
-| Handle
+| [[Filesystem_services|FSFILE]] Handle
 |-
 | 5
-| <nowiki>(BufSize<<8) | 12</nowiki>
+| (Buffer Size << 4) <nowiki>|</nowiki> 0xC
 |-
 | 6
-| Buffer ptr, this input buffer contains the encrypted [[DSiWare_Exports|DSiWare]] export banner, header, and footer.
+| Work buffer pointer
 |}
@@ Line 40: / Line 40: @@
 |}
-=Operation Values=
+=Operation=
 {| class="wikitable" border="1"
 |-
@@ Line 62: / Line 62: @@
 AM module uses [[Application_Manager_Services_PXI|AMPXI:DecryptDSiWareData]] for decrypting each DSiWare section. After decrypting a section via that command, AM module calculates a hash over the decrypted payload data for [[AMPXI:ValidateDSiWareSectionMAC]]. The footer hash for this section is then verified by calculating a hash over the cleartext data as well.
-After AM module validates the header, AM module then uses [[AMPXI:ValidateDSiWareMovableSedHash]]. The footer ECDSA verification is handled by [[AMPXI:VerifyDSiWareFooter]]. The decrypted banner is written to inputbuffer+0.
+After AM module validates the header, AM module then uses [[AMPXI:ValidateDSiWareMovableSedHash]]. The footer ECDSA verification is handled by [[AMPXI:VerifyDSiWareFooter]].