The stack's signing-key derivation: HKDF-SHA-256(keyMaterial, salt "signing")
→ 32 bytes, used for ECDSA, Schnorr and Ed25519 private keys alike
(the reference's derive_signing_private_key ≡ ecdsa_derive_private_key).
Parameters
keyMaterial: Uint8Array
Returns Uint8Array<ArrayBuffer>
Throws
InvalidParameter unless keyMaterial is a Uint8Array.
The stack's signing-key derivation: HKDF-SHA-256(keyMaterial, salt "signing") → 32 bytes, used for ECDSA, Schnorr and Ed25519 private keys alike (the reference's
derive_signing_private_key≡ecdsa_derive_private_key).