mbirth/gcd-parser
1
0
Fork 0
Code Issues5 Pull Requests Activity

Signature mismatch #24

New Issue
Closed
opened 2022-02-03 12:54:28 +00:00 by pavlinux · 1 comment
pavlinux commented 2022-02-03 12:54:28 +00:00 (Migrated from github.com)

$ ./get_updates.py 006-B3943-10
$ wget http://download.garmin.com/software/EPIX_Gen2__720.gsp
$ unzip EPIX_Gen2__720.gsp
Archive: EPIX_Gen2__720.gsp
extracting: package.xml
inflating: manifest.xml
extracting: bundle.gsp
$ ./gcdstruct.py bundle.gsp

Opening bundle.gsp
Traceback (most recent call last):
  File "./gcdstruct.py", line 23, in <module>
    gcd = Gcd(FILE)
  File "gcd-parser/grmn/gcd.py", line 33, in __init__
    self.load()
  File "gcd-parser/grmn/gcd.py", line 43, in load
    raise ParseException(RED + "Signature mismatch ({}, should be {})!".format(repr(sig) + RESET, repr(GCD_SIG)))
grmn.gcd.ParseException: Signature mismatch (b'\x85u\xc0\x96\x99\xf6\xa5\x9c', should be b'GARMINd\x00')!
$ ./get_updates.py 006-B3943-10 $ wget http://download.garmin.com/software/EPIX_Gen2__720.gsp $ unzip EPIX_Gen2__720.gsp Archive: EPIX_Gen2__720.gsp extracting: package.xml inflating: manifest.xml extracting: bundle.gsp $ ./gcdstruct.py bundle.gsp ``` Opening bundle.gsp Traceback (most recent call last): File "./gcdstruct.py", line 23, in <module> gcd = Gcd(FILE) File "gcd-parser/grmn/gcd.py", line 33, in __init__ self.load() File "gcd-parser/grmn/gcd.py", line 43, in load raise ParseException(RED + "Signature mismatch ({}, should be {})!".format(repr(sig) + RESET, repr(GCD_SIG))) grmn.gcd.ParseException: Signature mismatch (b'\x85u\xc0\x96\x99\xf6\xa5\x9c', should be b'GARMINd\x00')! ```
mbirth commented 2022-02-03 18:18:38 +00:00 (Migrated from github.com)

The file is a .gsp file, not .gcd. And thus it's a completely different format. From glancing at it, I'd say the GSP is some encrypted archive of all the different updates mentioned in the package.xml . But I don't know of any way to decrypt it.

The file is a `.gsp` file, not `.gcd`. And thus it's a completely different format. From glancing at it, I'd say the GSP is some encrypted archive of all the different updates mentioned in the package.xml . But I don't know of any way to decrypt it.
Sign in to join this conversation.
No Label
No Milestone
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: mbirth/gcd-parser#24
No description provided.
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?