Is there a standard way to generate a nonce in PL SQL?

I have found a way to generate a nonce using a dbms package. It basically generates the nonce, inserting that nonce into a 1 column table (and deleting the old nonce, so there is only one row ever in the table).
But I am wanting to know if there is a standard way to generate a nonce in PL SQl - I just happened to stumble across this while researching nonces
Thanks

Matt as your previous question recieved no answers, I am guessing nobody here knows anything about it. Maybe a cryptography site might be a better source of information.

Wendy Gibbons wrote:Matt as your previous question received no answers, I am guessing nobody here knows anything about it. Maybe a cryptography site might be a better source of information.

I assume you mean this thread:

http://www.coderanch.com/t/569658/JDBC/java/Invoking-web-service-pl-sql#2589957

Which if you read, you will see that the questions are not really the same - in that one I was trying to figure out how to use a nonce in the first place (building the soap request). Once I worked it out, (as you can also read in my reply to that thread), I then decided to ask here later if there is possibly a more standard way of generating the nonce. I had marked that thread as resolved once I found the answer to what I was asking at the time, so the chances of getting a question answered that I never asked in the first place was...slim

Thanks for the input, I will look elsehwhere