Re: java.security.NoSuchAlgorithmException in Tomcat SOLUTION

[Michael McGrady]

For some reason Tomcat is not seeing the com.sun.crypto.provider package in 
jre/lib/ext.  The work around is to put the SunJCE provider 
(sunjce_provider.jar) into commons/lib of Tomcat and to then add the 
provider manually with
  Security.addProvider(new com.sun.crypto.provider.SunJCE()).  Why this is 
necessary is a quandry to me.  If I had a clue why this was happening, I 
would try to fix it.  But, this is not my area of expertise and I am stumped.

At 07:26 AM 3/27/2004, you wrote:
I am using j2se 1.4.2_04.  When I attempt to run 
java.security.KeyPairGenerator.getInstance("DH") in Tomcat, I get a stack 
trace as follows:

java.security.NoSuchAlgorithmException: DH KeyPairGenerator not available
        java.security.Security.getEngineClassName(Security.java:584)
        java.security.Security.getEngineClassName(Security.java:595)
        java.security.Security.getImpl(Security.java:1044)
        java.security.KeyPairGenerator.getInstance(KeyPairGenerator.java:146)
        org.apache.jsp.TEST_KEYPAIR_jsp._jspService(TEST_KEYPAIR_jsp.java:58)
        org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
        javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:204)

org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
        org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
        javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
I can run the DH generator from the command line.  So, the DH 
KeyPairGenerator IS available.  I have no trouble with Resin 2.1.x.  What 
is up?  Come on you guys, give me a hand here.  The documentation 
indicates that I should not be having a problem.


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