HKDF-SHA-256 | Dyber IP Cores

Overview

HMAC-based Extract-and-Expand Key Derivation Function using SHA-256. Two-stage KDF: Extract concentrates entropy from input keying material, Expand derives output keying material of arbitrary length.

Key Features

RFC 5869 HKDF extract and expand
SHA-256 based
Arbitrary output key length

Benefits

Standards-compliant key derivation for TLS, IKE, and protocol key hierarchies
Two-stage design separates entropy extraction from key expansion

Standards & Verification

Standards compliance: RFC 5869

Verification: Verified vs RFC 5869 Test Case 1.

"Verified" means RTL byte-exact against official test vectors. It does not imply FIPS 140-3 certification or foundry sign-off.

Availability & Deliverables

Available Verified soft IP, foundry-portable RTL.

Standard Deliverables

Synthesizable SystemVerilog RTL
Self-checking testbench(es)
Python golden reference model
cocotb regression
Synthesis scripts
Integration/user guide

Firm/hard IP (hardened netlist for a target node) available on foundry enablement.

HKDF-SHA-256.