Hi Martin,

New Crypto interface in new WSS4J (1.6.X, 2.X.X) is keystore independent, just 
take a newer Version. 

http://people.apache.org/~coheigea/stage/wss4j/1.6.0/site/apidocs/org/apache/ws/security/components/crypto/Crypto.html#getKeyStore%28%29
  
https://ws.apache.org/wss4j/apidocs/org/apache/wss4j/common/crypto/Crypto.html.

You can take XKMS Crypto provider as a basis. The provider loads public 
certificates from XKMS Service: 
https://github.com/apache/cxf/blob/master/services/xkms/xkms-client/src/main/java/org/apache/cxf/xkms/crypto/provider/XkmsCryptoProvider.java

Regards,
Andrei.

> -----Original Message-----
> From: Martin Nielsen [mailto:[email protected]]
> Sent: Freitag, 26. Juni 2015 15:32
> To: [email protected]
> Subject: Creating a crypto provider for something else than a keystore
> 
> Hello all.
> 
> I am considering implementing a number of SOAP webservices using CXF for an
> existing application. The application already has a large number of x509
> certificates and corresponding keys in a store that is NOT a java keystore.
> 
> Is it possible to implement another crypto provider like Merlin:
> http://people.apache.org/~coheigea/stage/wss4j/1.5.5/site/apidocs/org/apach
> e/ws/security/components/crypto/Merlin.html
> ?
> The provider should not take data from a Java keystore but another source.
> 
> I was looking into implementing my own version of Crypto:
> http://people.apache.org/~coheigea/stage/wss4j/1.5.10/site/apidocs/org/apac
> he/ws/security/components/crypto/Crypto.html
> 
> but i am confused. The method *getKeyStore
> <http://people.apache.org/~coheigea/stage/wss4j/1.5.10/site/apidocs/org/apa
> che/ws/security/components/crypto/Crypto.html#getKeyStore()>*
> ()  returns the backing keystore. This doesn't seem like its independent of 
> the
> Keystore backend.
> 
> Is it possible to implement a Crypto provider that is not dependent on a Java
> keystore for use in CXF authentication and encryption?
> And am i correct in assuming that
> org.apache.ws.security.components.crypto.Crypto
> is the correct interface to implement if i want to substitute Merlin as a 
> crypto
> provider?
> 
> Thank you in advance.
> 
> -Martin

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