LIMITING BRUTE FORCE ATTACKS AGAINST DISPERSED CREDENTIALS IN A DISTRIBUTED STORAGE SYSTEM

摘要

A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method begins by performing a key derivation function on a password to produce a key and issuing a set of blinded passwords to a set of storage units, where the blinded passwords are generated based on the key. The method continues by receiving at least a decode threshold number of confidential information responses, where each of the confidential information responses includes an encrypted encoded data slice and an associated passkey, regenerating a set of keys using the associated passkeys of the confidential information, decrypting a set of encrypted slices of the confidential information using the set of keys to reproduce a set of encoded data slices, and dispersed storage error decoding a decode threshold number of the set of reproduced encoded data slices to produce recovered data.