AMPXI:VerifyDSiWareFooter: Difference between revisions

← Older edit

@@ Line 8: / Line 8: @@
 | Header code [0x004301C8]
 |-
-| 1
+| 1-2
-| TWL TitleID lower word, from the [[DSiWare_Exports|header]].
+| u64, TWL Title ID (from [[DSiWare_Exports|header]])
-|-
-| 2
-| TWL TitleID upper word, from the header.
 |-
 | 3
-| Data buffer size. When the running NATIVE_FIRM only supports [[DSiWare_Exports|DSiWare]] exports format v1, the max size for this is 0xC0, otherwise the max size is 0x1C0.
+| Data size
 |-
 | 4
-| ECDSA signature buffer size, must be 0x3C.
+| ECDSA signature size (must be 0x3C)
 |-
 | 5
-| [[CTCert]] buffer size, must be 0x180.
+| [[CTCert]] size (must be 0x180)
 |-
 | 6
-| APCert buffer size, must be 0x180.
+| APCert size (must be 0x180)
 |-
 | 7
-| u8 [[DSiWare_Exports|DSiWare]] export section index
+| u8, [[DSiWare_Exports|DSiWare]] export section index
 |-
 | 8
-| <nowiki>(DataBufSize<<8) | 0x4</nowiki>
+| <nowiki>(DataSize << 8) | 0x6</nowiki>
 |-
 | 9
-| DataBuf ptr, this buffer contains the hashes from the [[DSiWare_Exports|footer]].
+| Data pointer (contains hashes from [[DSiWare_Exports|footer]])
 |-
 | 10
-| <nowiki>(SigBufSize<<8) | 0x14</nowiki>
+| <nowiki>(ECDSASignatureSize << 8) | 0x16</nowiki>
 |-
 | 11
-| ECDSA signature ptr, this signs the above data-buffer.
+| ECDSA signature pointer (signs data)
 |-
 | 12
-| <nowiki>(CTCertSize<<8) | 0x24</nowiki>
+| <nowiki>(CTCertSize << 8) | 0x26</nowiki>
 |-
 | 13
-| [[CTCert]] buffer ptr, from the footer.
+| [[CTCert]] pointer (from [[DSiWare_Exports|footer]])
 |-
 | 14
-| <nowiki>(APCertSize<<8) | 0x34</nowiki>
+| <nowiki>(APCertSize << 8) | 0x36</nowiki>
 |-
 | 15
-| APCert buffer ptr, from the footer.
+| APCert pointer (from [[DSiWare_Exports|footer]])
 |}
@@ Line 61: / Line 58: @@
 |-
 | 0
-| Header code
+| Header code [0x00430040]
 |-
 | 1
@@ Line 68: / Line 65: @@
 =Description=
-This verifies the ECDSA signature and certificates from the [[DSiWare_Exports|DSiWare]] export footer.
+This verifies the ECDSA signature and certificates from the [[DSiWare_Exports|DSiWare]] export footer. The input CTCert is verified with a DER stored in NATIVE_FIRM, separate DERs are used for retail and dev/debug.
+When the running NATIVE_FIRM only supports [[DSiWare_Exports|DSiWare]] exports format v1, the max data size is 0xC0, otherwise the max size is 0x1C0.