SSL Certificate

Hello,what is the reason for acquiring certificates from a certificate authority like VeriSign. Why not just install your own certificate?If one creates a keystore by himself with the keytool, will that be a secure certificate?RegardsRen?
[273 byte] By [Innflow_Guenthera] at [2007-11-27 5:16:37]
# 1
Why should anybody trust it?
ejpa at 2007-7-12 10:39:23 > top of Java-index,Security,Other Security APIs, Tools, and Issues...
# 2
Ok. Considering its an intranet application. Everybody will accept this certificate, because in the URL one will see its an intranet application and on the other side, users tend to click OK on every popup without reading the message.
Innflow_Guenthera at 2007-7-12 10:39:23 > top of Java-index,Security,Other Security APIs, Tools, and Issues...
# 3
So why use SSL?
ejpa at 2007-7-12 10:39:23 > top of Java-index,Security,Other Security APIs, Tools, and Issues...
# 4
Ah ok, this answers another question I was going to ask: Is it necessary to use SSL in intranet applications?The application in the first place was intendend for intranet and internet use.So: if the intranet is secured there is no need for using SSL?
Innflow_Guenthera at 2007-7-12 10:39:23 > top of Java-index,Security,Other Security APIs, Tools, and Issues...