Exception Unwrapping Private Key

Exception Unwrapping Private Key




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Hi,

I had an application that worked perfectly, now I want to migrate this application to web and I have put it over a tomcat application server. But when I run it, I always get the following exception, what does this mean?

The application sends a soap message encrypted with a pkcs12 key and with a truststore.

faultString: java.net.SocketException: Default SSL context init failed: exception unwrapping private key - java.security.InvalidKeyException: Illegal key size
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}stackTrace:java.net.SocketException: Default SSL context init failed: exception unwrapping private key - java.security.InvalidKeyException: Illegal key size
at javax.net.ssl.DefaultSSLSocketFactory.createSocket(Unknown Source)
at org.apache.axis.components.net.JSSESocketFactory.create(JSSESocketFactory.java:92)
at org.apache.axis.transport.http.HTTPSender.getSocket(HTTPSender.java:191)
at org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.java:404)
at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
at org.apache.axis.client.Call.invoke(Call.java:2767)
at org.apache.axis.client.Call.invoke(Call.java:1870)
at com.sweliop.ws.client.servicios.ClienteWS.getRespuesta(ClienteWS.java:195)
at com.sweliop.ws.client.servicios.ClienteWS._peticionFechaHora(ClienteWS.java:576)
at com.sweliop.ws.client.servicios.ClienteWS.peticionFechaHora(ClienteWS.java:270)
at com.eliop.ws.client.struts.actions.GetFechaAction.execute(GetFechaAction.java:53)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
at java.lang.Thread.run(Unknown Source)

{http://xml.apache.org/axis/}hostname:ic1346

java.net.SocketException: Default SSL context init failed: exception unwrapping private key - java.security.InvalidKeyException: Illegal key size
at org.apache.axis.AxisFault.makeFault(AxisFault.java:101)
at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:154)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
at org.apache.axis.client.Call.invoke(Call.java:2767)
at org.apache.axis.client.Call.invoke(Call.java:1870)
at com.sweliop.ws.client.servicios.ClienteWS.getRespuesta(ClienteWS.java:195)
at com.sweliop.ws.client.servicios.ClienteWS._peticionFechaHora(ClienteWS.java:576)
at com.sweliop.ws.client.servicios.ClienteWS.peticionFechaHora(ClienteWS.java:270)
at com.eliop.ws.client.struts.actions.GetFechaAction.execute(GetFechaAction.java:53)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:228)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
at java.lang.Thread.run(Unknown Source)
You have to update security files of your Java installation that is used by Tomcat. Download the "Unlimited Strength Jurisdiction Policy Files" from http://java.sun.com/javase/downloads/index.jsp under topic Additional Resources 'Other Downloads': Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files and install it. Extract the files local_policy.jar and US_export_policy.jar and place them into the lib/security directory of your java installation.

eanow opened this issue on 19 Nov 2020 ยท 4 comments
eanow opened this issue on 19 Nov 2020 ยท 4 comments
Attempting to unwrap a private key (use case of moving a private key from one HSM to another) results in a pkcs11.exceptions.AttributeTypeInvalid exception.
Code block which should reproduce the issue:
import pkcs11
hsm=pkcs11.lib('/usr/local/lib/softhsm/libsofthsm2.so')
token=hsm.get_token(token_label='alice-token-1')
session=token.open(user_pin='1111',rw=True)
pubkey,privkey=session.generate_keypair(key_type=pkcs11.KeyType.RSA, key_length=2048, store=True, label='alice-rsa-01', private_template={pkcs11.Attribute.EXTRACTABLE=True})
secretkek=session.generate_key(key_type=pkcs11.KeyType.AES, key_length=256, store=True, label='alice-kek-01')
wrapped=secretkek.wrap_key(privkey)
unwrapped=secretkek.unwrap_key(object_class=pkcs11.ObjectClass.PRIVATE_KEY, key_type=pkcs11.KeyType.RSA,key_data=wrapped, label='check',store=False)
The issue occurs within the UnwrapMixin, where the template is created. Best I can tell reading the pkcs11 documents, RSA private keys should not have the encrypt, wrap, and verify attributes at all, and trying to set them causes the SoftHSM to generate an error.
#105 I've created a pull request with a proposed fix. It may not be the ideal spot to fix this issue, but it allowed me to move past the exception in my work using this module.
Override those attributes the HSM doesn't like in your template with the value pkcs11.DEFAULT, which removes the key from the final merged template.
Thank you for pointing me in the right direction!
Probably could be better documented. It's a bit of a hack to work around trying to make it work as easily as you like for the most number of HSMs.
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