US 12,309,256 B2
Apparatus for cryptographic operations on information and associated methods
Steven Cooreman, Nittedal (NO)
Assigned to Silicon Laboratries Inc., Austin, TX (US)
Filed by Silicon Laboratories Inc., Austin, TX (US)
Filed on Nov. 16, 2022, as Appl. No. 17/988,741.
Prior Publication US 2024/0163077 A1, May 16, 2024
Int. Cl. H04L 29/06 (2006.01); H04L 9/06 (2006.01)
CPC H04L 9/0618 (2013.01) 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
an encryption circuit comprising:
a stream cipher circuit to generate a pseudorandom hash key using a plaintext and at least n number of bits of a constant value, where n comprises the number of bits used as the pseudorandom hash key; and
a keyed hash function circuit that receives as an input the pseudorandom hash key.