Re: JDBC with SSL - Mailing list pgsql-jdbc

Hi John,

try this one (i hope it works)

1. open the certificate in a text editor
2. look for the line starting like this: ------ BEGIN CERTIFICATE ...
3. cut the closing section of the file ( incl. the ---- BEGIN CERTIFICATE
and ---- END CERTIFICATE lines) and copy it into the file cert2.crt
4. run: $ keytool -import -alias alias_name -file cert2.crt
5. answer all questions and say that you trust this cert

If you were successful can you tell me about your config? I use jdk1.3.0_02
and jsse (I know it is an old conf) and PG 7.3 and I recieve an answer as
follows:"FATAL: failed to initialize SSL connection: wrong version number".
I see the next in the server's log file: "FATAL: failed to initialize SSL
connection: sslv3 alert handshake failure" then "FATAL: SSL SYSCALL error:
Connection reset by peer"

If i change the next line in the back and code :
SSL_context=SSL_CTX_new(TLSv1_method()) to
SSL_context=SSL_CTX_new(SSLv23_method()) and
initialize the factory in the jdbc driver by using SSLv23 then
everything is ok.

why?

regards / Istvan Nagy

----- Original Message -----
From: John Laban <johnl@infotn.com>
To: Barry Lind <blind@xythos.com>
Cc: <pgsql-jdbc@postgresql.org>
Sent: Friday, March 28, 2003 6:06 PM
Subject: Re: [JDBC] JDBC with SSL


> Hello again,
>
> I have made numerous attempts to import the certificate from the server to
> the client machine using java keytool with no success - the keytool
> complains that the file is not a valid X.509 format.
>
> Additionally, for my application, only the encryption of the channel is
> important so if it is possible to create an ssl connection without the
> authentication portion that would be the best solution.
>
>
> However I would still appreciate any information on how to import the
> certificate (as generated using the Postgresql documention) into the java
> certificate store.
>
>
>
> ----- Original Message -----
> From: "Barry Lind" <blind@xythos.com>
> To: "John Laban" <johnl@infotn.com>
> Cc: <pgsql-jdbc@postgresql.org>
> Sent: Friday, March 28, 2003 11:11 AM
> Subject: Re: [JDBC] JDBC with SSL
>
>
> > John,
> >
> > The error message indicates that your client doesn't trust the servers
> > certificate.  My guess is that you are using a self-signed certificate
> > on the server.  If you want to be able to connect you are going to need
> > to import that certificate into the client side java certificate store
> > so that it recognizes the self-signed certificate as valid and trusted.
> >
> > thanks,
> > --Barry
> >
> >
> > John Laban wrote:
> > > Thanks for the quick reply, but I'm still having some difficulty.
> > >
> > > I have been trying to connect to postgresql (redhat version 7.2.3.1)
> using
> > > JDBC and SSL - I am using the 7.4 development driver.
> > >
> > > I know that the server side is set up correctly because when
connecting
> > > using psql the connection is established using SSL.
> > >
> > >
> > > However when connecting via JDBC I receive
> > >
> > >
> > >
> > >
> > > PostgreSQL 7.4devel JDBC3 with SSL (build 204)
> > >
> > >     ssl = true
> > >
> > >     compatible = 7.4
> > >
> > >     loglevel = 2
> > >
> > > Asking server if it supports ssl
> > >
> > > Server response was (S=Yes,N=No): S
> > >
> > > server does support ssl
> > >
> > > converting regular socket connection to ssl
> > >
> > >
> > >
> > >             at org.postgresql.core.PGStream.flush(PGStream.java:364)
> > >
> > >             at
> > >
>
org.postgresql.jdbc1.AbstractJdbc1Connection.openConnection(AbstractJdbc1Con
> > > nection.java:269)
> > >
> > >             at org.postgresql.Driver.connect(Driver.java:137)
> > >
> > >             at
> java.sql.DriverManager.getConnection(DriverManager.java:512)
> > >
> > >             at
> java.sql.DriverManager.getConnection(DriverManager.java:140)
> > >
> > >             at docextractor.test.main(test.java:35)
> > >
> > >
> > > Exception: An I/O error has occured while flushing the output -
> Exception:
> > > javax.net.ssl.SSLHandshakeException:
> > > java.security.cert.CertificateException: Couldn't find trusted
> certificate
> > >
> > > Stack Trace:
> > >
> > >
> > >
> > > javax.net.ssl.SSLHandshakeException:
> > > java.security.cert.CertificateException: Couldn't find trusted
> certificate
> > >
> > >             at
> com.sun.net.ssl.internal.ssl.BaseSSLSocketImpl.a(DashoA6275)
> > >
> > >             at
com.sun.net.ssl.internal.ssl.SSLSocketImpl.a(DashoA6275)
> > >
> > >             at
com.sun.net.ssl.internal.ssl.SSLSocketImpl.a(DashoA6275)
> > >
> > >             at com.sun.net.ssl.internal.ssl.SunJSSE_az.a(DashoA6275)
> > >
> > >             at com.sun.net.ssl.internal.ssl.SunJSSE_az.a(DashoA6275)
> > >
> > >             at com.sun.net.ssl.internal.ssl.SunJSSE_ax.a(DashoA6275)
> > >
> > >             at
com.sun.net.ssl.internal.ssl.SSLSocketImpl.a(DashoA6275)
> > >
> > >             at
com.sun.net.ssl.internal.ssl.SSLSocketImpl.j(DashoA6275)
> > >
> > >             at
com.sun.net.ssl.internal.ssl.SSLSocketImpl.a(DashoA6275)
> > >
> > >             at
> > > com.sun.net.ssl.internal.ssl.AppOutputStream.write(DashoA6275)
> > >
> > >             at
> > > java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:69)
> > >
> > >             at
> > > java.io.BufferedOutputStream.flush(BufferedOutputStream.java:127)
> > >
> > >             at org.postgresql.core.PGStream.flush(PGStream.java:360)
> > >
> > >             at
> > >
>
org.postgresql.jdbc1.AbstractJdbc1Connection.openConnection(AbstractJdbc1Con
> > > nection.java:269)
> > >
> > >             at org.postgresql.Driver.connect(Driver.java:137)
> > >
> > >             at
> java.sql.DriverManager.getConnection(DriverManager.java:512)
> > >
> > >             at
> java.sql.DriverManager.getConnection(DriverManager.java:140)
> > >
> > >             at docextractor.test.main(test.java:35)
> > >
> > >
> > > Caused by: java.security.cert.CertificateException: Couldn't find
> trusted
> > > certificate
> > >
> > >
> > >             at
> > > com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.a(DashoA6275)
> > >
> > >             at
> > >
>
com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(DashoA6
> > > 275)
> > >
> > >             at
> > >
>
com.sun.net.ssl.internal.ssl.JsseX509TrustManager.checkServerTrusted(DashoA6
> > > 275)
> > >
> > >             ... 15 more
> > >
> > >
> > > End of Stack Trace
> > >
> > >
> > >
> > >
> > >
> > > At the server side I get
> > >
> > >
> > >
> > > Failed to inititalize SSL Connection: sslv3 alert certificate unknown
> > > (Success)
> > >
> > >
> > >
> > >
> > > I have not been able to find any clear resolutions to this problem. If
> > > someone can shed some light on a solution to this problem it would be
> > > greatly appreciated.
> > >
> > >
> > >
> > > ----- Original Message -----
> > > From: "Barry Lind" <blind@xythos.com>
> > > To: "John Laban" <johnl@infotn.com>
> > > Cc: <pgsql-jdbc@postgresql.org>
> > > Sent: Thursday, March 27, 2003 5:58 PM
> > > Subject: Re: [JDBC] JDBC with SSL
> > >
> > >
> > >
> > >>John,
> > >>
> > >>This hasn't yet made it to the documentation.
> > >>
> > >>but adding ?ssl to the url should be what you need.  (also consider
> > >>using &loglevel=2 to turn on debugging info).
> > >>
> > >>--Barry
> > >>
> > >>John Laban wrote:
> > >>
> > >>>Hello,
> > >>>
> > >>>The newest developement JDBC drivers (7.4dev, build 204, 2003-03-23)
> say
> > >
> > > they include support for SSL.  I can set up the server to use SSL, but
I
> > > can't seem to get the JDBC driver to actually connect using SSL.  Is
> there
> > > any documentation on this?  Or is there a specific parameter I am
> supposed
> > > to include in the connection URL?
> > >
> > >>>Any help in this would be appreciated.
> > >>>
> > >>>John Laban
> > >>>
> > >>
> > >>
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