byte(len(context))) hkdfLabel = append(hkdfLabel, context...) return hkdf.Expand(hash, secret, string(hkdfLabel), length) } func extract[H fips140.Hash](hash func() H, newSecret, currentSecret []byte) []byte { if newSecret == nil { newSecret = make([]byte, hash().Size()) } return hkdf.Extract(hash, newSecret, currentSecret) } func deriveSecret[H fips140.Hash](hash func() H, secret []byte, label string, transcript fips140.Hash) []byte { if transcript == nil { transcript = hash() } return ExpandLabel(hash,...