grafana/k6 · error

key derivation not implemented for algorithm {name}

Error message

key derivation not implemented for algorithm {name}

What it means

Error "key derivation not implemented for algorithm {name}" thrown in grafana/k6.

Source

Thrown at internal/js/modules/k6/webcrypto/key.go:230

type KeyDeriver interface {
	DeriveKey(
		privateKey *CryptoKey,
		ki KeyImporter,
		kgl KeyGetLengther,
		keyUsages []CryptoKeyUsage,
		extractable bool,
	) (*CryptoKey, error)
}

func newKeyDeriver(rt *sobek.Runtime, normalized Algorithm, params sobek.Value) (KeyDeriver, error) {
	var kd KeyDeriver
	var err error

	switch normalized.Name {
	case PBKDF2:
		kd, err = newPBKDF2DeriveParams(rt, normalized, params)
	default:
		return nil, errors.New("key derivation not implemented for algorithm " + normalized.Name)
	}

	if err != nil {
		return nil, err
	}

	return kd, nil
}

// KeyGetLengther is the interface implemented by the parameters used to
// get the key length of cryptographic keys
type KeyGetLengther interface {
	GetKeyLength() int
}

func newKeyGetLengther(rt *sobek.Runtime, normalized Algorithm, params sobek.Value) (KeyGetLengther, error) {
	var kgi KeyGetLengther
	var err error

View on GitHub (pinned to 93accf6570)

When it happens

Trigger: Thrown at internal/js/modules/k6/webcrypto/key.go:230 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of grafana/k6@93accf6570 (2026-08-15). Data as JSON: /api/errors/a4992f0aa6f98448. Report an issue: GitHub.