Attention is currently required from: Hoernchen.

dexter has posted comments on this change by Hoernchen. ( 
https://gerrit.osmocom.org/c/pysim/+/43172?usp=email )

Change subject: GP: LOAD/STORE DATA chunk size from SCP overhead
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Patch Set 1: Code-Review+2 Verified+1

(3 comments)

Patchset:

PS1:
I read through the patch and to me it looks plausible. I also gave it a quick 
manual test by installing a JAVA applet, which requires SCP02. Before this 
patch it does not work with Security Level 3, after applying the patch it works 
with Security Level 3 as well. So I can confirm it works.


File pySim/global_platform/__init__.py:

https://gerrit.osmocom.org/c/pysim/+/43172/comment/90e5995d_52c3b813?usp=email :
PS1, Line 871:         load_parser.add_argument('--chunk-len', type=auto_uint8, 
default=None,
(cosmetic, no blocker) as far as I know the default is always None, no need to 
set it explicitly.


File pySim/global_platform/scp.py:

https://gerrit.osmocom.org/c/pysim/+/43172/comment/55117bb9_dd23d59e?usp=email :
PS1, Line 195:         # is one byte less than the largest block-size multiple 
within 255 - mac_len.
Would be nice to have a spec reference here (for the interested reader).



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Gerrit-MessageType: comment
Gerrit-Project: pysim
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Gerrit-Change-Id: Ic208f3959a38896f64fb6ccefb24cc360a3ac3a2
Gerrit-Change-Number: 43172
Gerrit-PatchSet: 1
Gerrit-Owner: Hoernchen <[email protected]>
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Gerrit-Reviewer: dexter <[email protected]>
Gerrit-Reviewer: laforge <[email protected]>
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Gerrit-Comment-Date: Fri, 07 Aug 2026 09:16:08 +0000
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