Tomcat -- JSP -- KeyPairGenerator -- Security Exception

[Michael McGrady]

When I am using Tomcat I get a security exception when I try to access a 
java.security.KeyPairGenerator for a Diffie-Hellman key pair.  I don't get 
it with other servers.  Anyone know why this is?

java.security.NoSuchAlgorithmException: DH KeyPairGenerator not available
        java.security.Security.getEngineClassName(Security.java:583)
        java.security.Security.getEngineClassName(Security.java:594)
        java.security.Security.getImpl(Security.java:1043)
        java.security.KeyPairGenerator.getInstance(KeyPairGenerator.java:146)
        org.apache.jsp.TEST_KEYPAIR_jsp._jspService(TEST_KEYPAIR_jsp.java:57)
        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)