Kernel/XboxSignatureKey - Revision history

Wayo at 16:58, 18 May 2017

2017-05-18T16:58:03Z

Wayo at 16:57, 18 May 2017

2017-05-18T16:57:40Z

Wayo at 13:44, 18 May 2017

2017-05-18T13:44:37Z

Wayo: Created page with "This is used to find the Xbox Public RSA-2048 Key. This key is used to verify the signed XBE executables. == XBE signing process == The XBE signing process consists of two s..."

2017-05-18T11:33:54Z

Created page with "This is used to find the Xbox Public RSA-2048 Key. This key is used to verify the signed XBE executables. == XBE signing process == The XBE signing process consists of two s..."

New page

This is used to find the Xbox Public RSA-2048 Key. This key is used to verify the signed XBE executables.

== XBE signing process ==
The XBE signing process consists of two stages:

1. Calculate a SHA-1 hash of the contents of each of the XBE sections and store it in a table in the XBE header.

2. Calculate a SHA-1 hash of the XBE header, except for the ''magic'' 'XBEH' value and the ''digital signature'' field. The hash is then encrypted with a 2048-bit RSA private key. The signature of all official titles has been encrypted with The resulting encrypted hash ''signature'' stored near after the XBE header XBEH ''magic'' field, in the ''digital signature'' field.

== XBE signature verification ==
When an Xbox verifies an executable, a similar process is followed:

1. All the XBE section hashes are recalculated and compared to the ones stored in the XBE header section table. If these don't match, verification fails.

2. Calculate a SHA-1 hash of the XBE header, except for the ''magic'' 'XBEH' value and the ''digital signature'' field.

3. The ''digital signature'' field from the XBE is decrypted with the 2048-bit RSA public key and compared to the SHA-1 hash of the XBE header. Finally, if the two values match, the game is verified.

← Older revision		Revision as of 16:58, 18 May 2017
Line 1:		Line 1:
−	This is used to find the Xbox Public RSA-2048 Key. This key is used to verify the signed [[~~XBE~~]] executables.	+	This is used to find the Xbox Public RSA-2048 Key. This key is used to verify the signed [[Xbe]] executables.

	struct RSA_PUBLIC_KEY		struct RSA_PUBLIC_KEY

← Older revision		Revision as of 16:57, 18 May 2017
Line 1:		Line 1:
−	This is used to find the Xbox Public RSA-2048 Key. This key is used to verify the signed XBE executables.	+	This is used to find the Xbox Public RSA-2048 Key. This key is used to verify the signed [[XBE]] executables.

	struct RSA_PUBLIC_KEY		struct RSA_PUBLIC_KEY

@@ Line 1: / Line 1: @@
 This is used to find the Xbox Public RSA-2048 Key. This key is used to verify the signed XBE executables.
 == XBE signing process ==
@@ Line 17: / Line 29: @@
 . The ''digital signature'' field from the XBE is decrypted with the 2048-bit RSA public key and compared to the SHA-1 hash of the XBE header. Finally, if the two values match, the game is verified.