applet firmado

[masterjox]

Buenos dias.
Tengo un applet que he firmado y que funciona correctamente sobre http, pero cuando la conexion es sobre https da un error:

Caused by: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
at com.sun.net.ssl.internal.ssl.Alerts.getSSLExceptio n(Unknown Source)
at com.sun.net.ssl.internal.ssl.Alerts.getSSLExceptio n(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.recvAle rt(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRec ord(Unknown Source)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readDat aRecord(Unknown Source)
at com.sun.net.ssl.internal.ssl.AppInputStream.read(U nknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read1(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTPHeader(Unknow n Source)
at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInp utStream(Unknown Source)
at java.net.HttpURLConnection.getResponseCode(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl. getResponseCode(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unk nown Source)
at sun.plugin2.applet.Applet2ClassLoader.access$000(U nknown Source)
at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknow n Source)
at java.security.AccessController.doPrivileged(Native Method)
... 7 more
El certificado con el que se firma el jar tiene que ser igual que el certificado con el que se pone la conexion https?

Gracias.