type CredentialAssertion = {
    credentialId: string;
    signature: Uint8Array;
    webauthn: WebAuthnData;
};
type WebAuthnData = {
    authenticatorData: Uint8Array;
    clientDataJSON: Uint8Array;
};
type CredentialRequestOptionParameters = {
    credentialId?: string | undefined;
    challenge: Uint8Array;
    /**
     * The relying party identifier to use.
     */
    rpId?: PublicKeyCredentialRequestOptions["rpId"] | undefined;
    userVerification?: PublicKeyCredentialRequestOptions["userVerification"] | undefined;
};
type SignParameters = CredentialRequestOptionParameters & {
    /**
     * Credential request function. Useful for environments that do not support
     * the WebAuthn API natively (i.e. React Native or testing environments).
     *
     * @default window.navigator.credentials.get
     */
    getFn?: ((options?: CredentialRequestOptions | undefined) => Promise<Credential | null>) | undefined;
};
/**
 * Signs a hash using a stored credential. If no credential is provided,
 * a prompt will be displayed for the user to select an existing credential
 * that was previously registered.
 *
 * @example
 * ```ts
 * import { credential } from './credential'
 *
 * const signature = await sign({
 *   credentialId: credential.id,
 *   hash: '0x...',
 * })
 * ```
 */
declare function requestWebAuthnSignature(parameters: SignParameters): Promise<CredentialAssertion>;
/**
 * Returns the request options to sign a hash using a stored credential
 * with a P256 public key.
 *
 * @example
 * ```ts
 * const options = getCredentialSignRequestOptions({ hash: '0x...' })
 * const credentials = window.navigator.credentials.get(options)
 * ```
 */
declare function getCredentialSignRequestOptions(parameters: CredentialRequestOptionParameters): CredentialRequestOptions;
/**
 * @param signature
 * Parses an ASN.1 signature into a r and s value.
 * @return The signature as a Uint8Array.
 */
declare function parseAsn1Signature(signature: Uint8Array): Uint8Array;

export { type CredentialAssertion, type CredentialRequestOptionParameters, type SignParameters, type WebAuthnData, getCredentialSignRequestOptions, parseAsn1Signature, requestWebAuthnSignature };