Patent ID: 8256015
Filing Date: 2012-08-28
Classification: G11B,H04L,H04N

Abstract:
1. A method for transmitting to a recipient, over a communications network, a plurality of data streams M (1) , . . . , M (k) where k is greater than one, wherein each data stream M (j) (j is from 1 to k inclusive) comprises a first sequence of data blocks M (j) 1 , . . . , M (j) n where n is greater than one, the method comprising: (A) for each data block M (B) obtaining, by the machine, an authentication value which comprises a digital signature or a message authentication code on a value h (i) the first-layer value for each data block M (ii) if l is greater than 1, then the one or more inputs comprise h wherein for each data stream M wherein each set S (C) for each set S wherein at least one set S (D) transmitting to the recipient over the communications network, by the machine, the authentication value and the values M′