import { KeyObject } from 'node:crypto';
import { HSMSignerFactory } from './hsmsigner';
import { Signer } from './signer';
/**
 * Create a new signing implementation that uses the supplied private key to sign messages.
 *
 * Currently supported private key types are:
 * - NIST P-256 elliptic curve.
 * - NIST P-384 elliptic curve.
 * - Ed25519.
 *
 * Note that the signer implementations have different expectations on the input data supplied to them.
 *
 * The P-256 and P-384 signers operate on a pre-computed message digest, and should be combined with an appropriate
 * hash algorithm. P-256 is typically used with a SHA-256 hash, and P-384 is typically used with a SHA-384 hash.
 *
 * The Ed25519 signer operates on the full message content, and should be combined with a {@link hash.none | none} (or
 * no-op) hash implementation to ensure the complete message is passed to the signer.
 *
 * @param key - A private key.
 * @returns A signing implementation.
 */
export declare function newPrivateKeySigner(key: KeyObject): Signer;
/**
 * Create an HSM Signer factory. A single signer factory instance should be used to create all required HSM signers.
 */
export declare function newHSMSignerFactory(library: string): HSMSignerFactory;
//# sourceMappingURL=signers.d.ts.map