GSS-Kerberos authentication failure:Identifier doesn't match expected value

Hi,

Am trying to use Java GSS Api(JDK 1.5) to perform kerberos authentication on a Windows 2003 server. Am following the steps specified in JDK docs.

Am receiving following error while calling login on LoginContext

Debug istrue storeKeytrue useTicketCachefalse useKeyTabfalse doNotPromptfalse ticketCache isnull KeyTab isnull refreshKrb5Config isfalse principal isnull tryFirstPass isfalse useFirstPass isfalse storePass isfalse clearPass isfalse

[Krb5LoginModule] user entered username: kagupta

principal is kagupta@COMPANY.COM

Acquire TGT using AS Exchange

EncryptionKey: keyType=3 keyBytes (hex dump)=0000: 89 5E 32 E5 B3 07 40 01

EncryptionKey: keyType=1 keyBytes (hex dump)=0000: 89 5E 32 E5 B3 07 40 01

EncryptionKey: keyType=23 keyBytes (hex dump)=0000: 6C 7C 29 0C 7E E7 2D 6C93 19 EE 6A AB 53 42 7F l.)...-l...j.SB.

EncryptionKey: keyType=16 keyBytes (hex dump)=0000: BA 5D 5D 4F C1 8A E9 A2C4 51 1C 6B BC 7A 23 8A .]]O.....Q.k.z#.

0010: 6B 54 49 75 E3 08 1A F8

EncryptionKey: keyType=17 keyBytes (hex dump)=0000: 94 B1 EA E7 4F 28 B8 2526 A2 B6 6A 79 93 00 29 ....O(.%&..jy..)

[Krb5LoginModule] authentication failed

Pre-authentication information was invalid (24)

>>> GSSServer... Secure Context not established..

javax.security.auth.login.LoginException: Pre-authentication information was invalid (24)

at com.sun.security.auth.module.Krb5LoginModule.attemptAuthentication(Unknown Source)

at com.sun.security.auth.module.Krb5LoginModule.login(Unknown Source)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at javax.security.auth.login.LoginContext.invoke(Unknown Source)

at javax.security.auth.login.LoginContext.access$000(Unknown Source)

at javax.security.auth.login.LoginContext$4.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at javax.security.auth.login.LoginContext.invokePriv(Unknown Source)

at javax.security.auth.login.LoginContext.login(Unknown Source)

at GSSServer.startServer(GSSServer.java:92)

at GSSServer.main(GSSServer.java:66)

Caused by: KrbException: Pre-authentication information was invalid (24)

at sun.security.krb5.KrbAsRep.<init>(Unknown Source)

at sun.security.krb5.KrbAsReq.getReply(Unknown Source)

at sun.security.krb5.Credentials.acquireTGT(Unknown Source)

... 14 more

Caused by: KrbException: Identifier doesn't match expected value (906)

at sun.security.krb5.internal.KDCRep.init(Unknown Source)

at sun.security.krb5.internal.ASRep.init(Unknown Source)

at sun.security.krb5.internal.ASRep.<init>(Unknown Source)

... 17 more

Please help me.

Thanks,

Kapil

[3488 byte] By [kapilgupta77a] at [2007-10-3 1:24:25]