crypto problem

[Maxime Colas des Francs <ma...@sts.ca>]

hello,

I attempt to use openpgp in my web application
For that i use an external provider.
I put jar files in WEB-INF/lib and in a 'load-on-startup' servlet, i call 
Security.addProvider() and i read a public key from a file for futur 
encryptions.

I start tomcat manually (with startup.sh) and it works, i encrypt

but my problem is :
when application restart "not manually", by class modified or by manager 
application stop & start request,
my 'load-on-startup' servlet is re-executed, and freeze when public key is 
reading ...
and in my catalina.out i find this :

java.security.NoSuchAlgorithmException: Algorithm ElGamal not available
         at javax.crypto.SunJCE_b.a(DashoA6275)
         at javax.crypto.Cipher.getInstance(DashoA6275)
         at cryptix.openpgp.algorithm.PGPElGamal.<init>(PGPElGamal.java:91)
         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native 
Method)
         at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
         at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
         at java.lang.reflect.Constructor.newInstance(Constructor.java:274)
         at java.lang.Class.newInstance0(Class.java:296)
         at java.lang.Class.newInstance(Class.java:249)
         at 
cryptix.openpgp.algorithm.PGPAlgorithmFactory.getPublicKeyAlgorithm(PGPAlgorithmFactory.java:445)
         at 
cryptix.openpgp.packet.PGPKeyPacket.decodePublicData(PGPKeyPacket.java:228)
         at 
cryptix.openpgp.packet.PGPPublicSubKeyPacket.decodeBody(PGPPublicSubKeyPacket.java:92)
         at 
cryptix.openpgp.packet.PGPPacketFactory.readPacket(PGPPacketFactory.java:253)
         at 
cryptix.openpgp.provider.PGPKeyBundleFactory.helper(PGPKeyBundleFactory.java:84)
         at 
cryptix.openpgp.provider.PGPMessageFactory.generateBinary(PGPMessageFactory.java:224)
         at 
cryptix.openpgp.provider.PGPMessageFactory.generateAscii(PGPMessageFactory.java:157)
         at 
cryptix.openpgp.provider.PGPMessageFactory.engineGenerateMessages(PGPMessageFactory.java:77)
         at 
cryptix.message.MessageFactory.generateMessages(MessageFactory.java:142)
         at pkg.SetupServlet.init(SetupServlet.java:54)
         at 
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:935)
         at 
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:823)
         at 
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3420)
         at 
org.apache.catalina.core.StandardContext.reload(StandardContext.java:2567)
         at 
org.apache.catalina.loader.WebappLoader$WebappContextNotifier.run(WebappLoader.java:1369)
         at java.lang.Thread.run(Thread.java:536)

so initialisation failed and i have to restart tomcat manually (so all 
other web applications in the container)

someone can help me ?

thks !

M