Apple released the source code of the open source components they use in Big Sur (macOS 11.0, released in October 2020). The components are available at macOS X 11.0.1 Source.
SmartcardCCID
The SmartcardCCID component moved from version SmartcardCCID-55018.0.2 in Catalina 10.15.0 to SmartcardCCID-55021.40.1 in Big Sur 11.0.1.
Incomplete diff:
diff -ru SmartcardCCID-55018.0.2/SmartcardCCID.plist SmartcardCCID-55021.40.1/SmartcardCCID.plist
--- SmartcardCCID-55018.0.2/SmartcardCCID.plist 2019-08-21 00:16:22.000000000 +0200
+++ SmartcardCCID-55021.40.1/SmartcardCCID.plist 2020-04-28 20:53:09.000000000 +0200
@@ -6,13 +6,13 @@
<key>OpenSourceProject</key>
<string>ccid</string>
<key>OpenSourceVersion</key>
- <string>1.4.31</string>
+ <string>1.4.32</string>
<key>OpenSourceWebsiteURL</key>
<string>https://ccid.apdu.fr</string>
<key>OpenSourceURL</key>
- <string>https://ccid.apdu.fr/files/ccid-1.4.31.tar.bz2</string>
+ <string>https://ccid.apdu.fr/files/ccid-1.4.32.tar.bz2</string>
<key>OpenSourceImportDate</key>
- <string>2019-08-20</string>
+ <string>2020-04-27</string>
<key>OpenSourceModifications</key>
<array>
<string>destDirFix.patch - makefile.in, customized destination directory</string>
diff -ru SmartcardCCID-55018.0.2/ccid/Makefile SmartcardCCID-55021.40.1/ccid/Makefile
--- SmartcardCCID-55018.0.2/ccid/Makefile 2019-08-21 00:16:21.000000000 +0200
+++ SmartcardCCID-55021.40.1/ccid/Makefile 2020-08-06 20:06:44.000000000 +0200
@@ -24,11 +24,12 @@
find $(DSTROOT)/ -name 'usb*.h' -exec rm \{\} \;
rm -r $(DSTROOT)/usr/include
rm -r $(DSTROOT)/usr/lib
- install_name_tool -id $(CCIDDriversPath)$(CCIDdylib) $(DSTROOT)$(CCIDDriversPath)$(CCIDdylib)
+ install_name_tool -id $(CCIDDriversPath)$(CCIDdylib) $(DSTROOT)$(CCIDDriversPath)$(CCIDdylib)
+ codesign -s - $(DSTROOT)$(CCIDDriversPath)$(CCIDdylib)
# Automatic Extract & Patch
AEP_Project = ccid
-AEP_Version = 1.4.31
+AEP_Version = 1.4.32
AEP_ProjVers = $(AEP_Project)-$(AEP_Version)
AEP_Filename = $(AEP_ProjVers).tar.bz2
AEP_ExtractDir = $(AEP_ProjVers)
[...]
As we already saw in
macOS Big Sur and smart cards status
the CCID driver was updated from version
1.4.31 to version 1.4.32. You can find the patches Apple applies to the CCID
driver in the
ccid/files/
directory. Nothing special to say.
In fact, after checking the different releases of Catalina 10.15.x in
https://opensource.apple.com/ I
found that the CCID driver was upgraded from 1.4.31 to 1.4.32 in Catalina
itself from 10.15.5 to 10.15.6.
So Apple upgraded the CCID driver within the same major version version
of macOS.
And they missed the opportunity to upgrade to 1.4.33 in Big
Sur. Maybe it is planned for a future minor version upgrade of Big Sur?
libusb
SmartcardCCID includes the libusb component used by the CCID driver.
This libusb library is statically linked to the CCID driver and can't be used by another project.
The version is 1.0.9. This is a very old version of libusb that was released
in April 2012. The current libusb version is 1.0.24 released in December
2020.
I guess Apple does not want to upgrade a component that works fine enough from them.
SecurityTokend
This component is the same as in Catalina. It is SecurityTokend-55113.
It is strange to still find a tokend related component. Tokend technology is deprecated since Mac OS X Lion in 2011 (Mac OS X Lion and tokend).
Tokend was disabled by default in Catalina but was still usable (macOS Catalina and smart cards status).
In Big Sur tokend are not usable at all.
This component SecurityTokend does not contain any tokend plugin. There were
in the Tokend component, not SecurityTokend. This component generates two
file:
Conclusion
Interesting parts of the smart card stack would be the CryptoTokenKit and
WinSCard layers. But since Apple moved away from the Free Software project pcsc-lite in macOS Yosemite in 2014
(OS X Yosemite and smart cards status) these components are not open source.
