Building and using ykcs11 on Windows Arm

[BrainWart]

I am using a Lenovo x13s. I had previously used ykcs11 with ssh for accessing servers on an x64 machine. I was unable to use any of the prebuilt binaries as the pre-installed ssh agent would refuse to load the DLL.

Dependencies

• cmake ( I used cmake version 3.28.0-rc5 )
• vcpkg ( I used vcpkg package management program version 2023-11-16-4c1df40a3c5c5e18de299a99e9accb03c2a82e1e )
• getopt (vcpkg) ( I used getopt-win32:arm64-windows 1.1.0.20220925 which was brought in from getopt:arm64-windows 0#3 )
• openssl (vcpkg) ( I used openssl:arm64-windows 3.1.4#1

Quick Steps

• Install cmake
• Install vcpkg
• vcpkg.exe install getopt
• vcpkg.exe install openssl
• $env:OPENSSL_ROOT_DIR ="vcpkg/packages/openssl_arm64-windows"
• Follow the directions in the README using something like the following command for cmake the first time
  • cmake -A arm64 -DGETOPT_LIB_DIR="../../vcpkg/packages/getopt-win32_arm64-windows/lib" -DGETOPT_INCLUDE_DIR="../../vcpkg/packages/getopt-win32_arm64-windows/include" ..
• cmake --build .

I have not tried to build a non-debug version. I copied the following DLLs as well as the artifacts with the same name into a folder in program files which was added to the path as seen in the directions for using ykcs11. Some of them are found in the vcpkg packages directory

• getopt.dll
• libcypto-3-arm64.dll
• libykcs11.dll
• libykpiv.dll
• yubico-piv-tool.exe

Honestly, I'm not sure what all files are needed exactly but, this has it working on my system.

> ssh-add -s "C:/Program Files (Arm)/Yubico/Yubico PIV Tool/bin/libykcs11.dll"
Enter passphrase for PKCS#11:
Card added: C:/Program Files (Arm)/Yubico/Yubico PIV Tool/bin/libykcs11.dll

If anyone has trouble, I do not mind answering questions. I cannot promise responses in a timely fashion.