java抱怨从softhsm加载pkcs dll

Question

I am trying to use softhsm for my project using java 1.8-64bit.

I am trying with m first sample java class given here Connecting to SoftHSM java code

I was able to install softhsm softhsm2-windows installer .

And Also able to create token usng softhsm-util.exe tool.

but when I try to run the java code I am getting

            Exception in thread "main" java.security.ProviderException: Initialization failed
                at sun.security.pkcs11.SunPKCS11.<init>(SunPKCS11.java:376)
                at sun.security.pkcs11.SunPKCS11.<init>(SunPKCS11.java:103)
                at SoftHSM.main(SoftHSM.java:44)
            Caused by: java.io.IOException: The specified module could not be found.
            Z:/SOFTHSM_INSTALL/lib/softhsm2-x64.dll
                at sun.security.pkcs11.wrapper.PKCS11.connect(Native Method)
                at sun.security.pkcs11.wrapper.PKCS11.<init>(PKCS11.java:138)
                at sun.security.pkcs11.wrapper.PKCS11.getInstance(PKCS11.java:151)
                at sun.security.pkcs11.SunPKCS11.<init>(SunPKCS11.java:313)
                ... 2 more

Even though the file is available in right location as mentioned in exception.

Please help to solve this issue.

Updated System Visual C++ installed:

Visual C++ in My PC Win 10

Answer 1

TLDR : If you want to use softhsm2-x64.dll from your JAVA application then you need to install 64-bit version of Visual C++ Redistributable for Visual Studio 2015 .

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Detailed answer : You did install SoftHSM using SoftHSM2 installer for MS Windows .

All executables and libraries present in that package (including softhsm2-util.exe ) are 32-bit expect for softhsm2-x64.dll which is 64-bit.

All executables and libraries present in that package (including softhsm2-util.exe ) depend on 32-bit version of Visual C++ Redistributable for Visual Studio 2015 expect for softhsm2-x64.dll which depends on 64-bit version of Visual C++ Redistributable for Visual Studio 2015.

README.md on project website says:

These packages include both 32-bit and 64-bit versions of PKCS#11 library and require both 32-bit and 64-bit version of Visual C++ Redistributable for Visual Studio 2015 to be installed on the target system.

README.txt displayed after the installation says:

This package includes both 32-bit and 64-bit build of SoftHSM 2.2.0 statically linked to OpenSSL 1.1.0d. It requires both 32-bit and 64-bit version of Visual C++ Redistributable for Visual Studio 2015 to be installed on the target system. These can be downloaded from:

http://www.microsoft.com/en-us/download/details.aspx?id=48145

My advice: install both 32-bit and 64-bit version of Visual C++ Redistributable for Visual Studio 2015.