import { JwkDidSupportedKeyTypes, KeyUse } from './types/utility-types.js';
import type { VerificationMethod, JsonWebKey } from 'did-resolver';
/**
 * Determine the key use based on the type of key and an optional passed key use param.
 * @param keyType - The type of key (e.g., 'Ed25519', 'X25519', 'Secp256k1', 'Secp256r1').
 * @param passedKeyUse - Optional key use parameter ('sig' for signature, 'enc' for encryption).
 *
 * @returns The determined key use ('sig' or 'enc').
 * @internal
 */
export declare function getKeyUse(keyType: JwkDidSupportedKeyTypes, passedKeyUse?: KeyUse): KeyUse;
/**
 * Check if the provided data is a valid JSON Web Key (JWK).
 * @param data - The data to be checked.
 *
 * @internal
 */
export declare function isJWK(data: unknown): data is JsonWebKey;
/**
 * Create a JSON Web Key (JWK) from the given public key material and key type.
 *
 * @param keyType - The type of key (e.g., 'Ed25519', 'X25519', 'Secp256k1', 'Secp256r1').
 * @param pubKey - The public key material as a hex string or Uint8Array.
 * @param passedKeyUse - Optional key use parameter ('sig' for signature, 'enc' for encryption).
 * @returns The generated JWK or undefined if the key type is not supported.
 *
 * @internal
 */
export declare function createJWK(keyType: JwkDidSupportedKeyTypes, pubKey: string | Uint8Array, passedKeyUse?: KeyUse): JsonWebKey | undefined;
/**
 * Generate a JSON Web Key (JWK) from a given verification method.
 *
 * @param keyType - The type of key (e.g., 'Ed25519', 'X25519', 'Secp256k1', 'Secp256r1').
 * @param key - The verification method containing the public key information.
 * @param keyUse - Optional key use parameter ('sig' for signature, 'enc' for encryption).
 * @returns The generated JWK.
 *
 * @internal
 */
export declare function generateJwkFromVerificationMethod(keyType: JwkDidSupportedKeyTypes, key: VerificationMethod, keyUse?: KeyUse): JsonWebKey | undefined;
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