Android InApp Billing - what are really nonces for?

Question

YES, I\'ve read all the docs @ developer.android.com and I do understand it all with one basic exception - what it was introduced for.

Since all order responses from Goo

Answer 1

"The nonce acts like a salt on the transaction, similar to how *nix systems store passwords. The nonce is used to add entropy to the value that is encrypted with your key, largely eliminating the chance that two transactions are encrypted and result in the same signature, and other similar cryptographic attacks."

see the answer by queso