import { Hex, RawSignature } from '@left-curve/types';
import { KeyPair } from './keypair.js';

/**
 * Recover the public key from a message hash and signature.
 * @param hash - The hash of the message that was signed.
 * @param signature - The signature to recover the public key from.
 * @param compressed - Whether to return the public key in compressed form.
 * @returns The public key that signed the message hash.
 */
declare function secp256k1RecoverPubKey(hash: Hex | Uint8Array, _signature_: Hex | Uint8Array | RawSignature, compressed?: boolean): Promise<Uint8Array>;
/**
 * Compress or uncompress a secp256k1 public key.
 * @param pubKey - The public key to compress or uncompress.
 * @param compress - True to compress the public key, false to uncompress it.
 * @returns The compressed or uncompressed public key.
 */
declare function secp256k1CompressPubKey(pubKey: Uint8Array, compress: boolean): Uint8Array;
/**
 * Verify a secp256k1 signature
 * @param messageHash - The hash of the message that was signed.
 * @param signature - The signature to verify.
 * @param publicKey - The public key to verify the signature with.
 * @returns True if the signature is valid, false otherwise.
 */
declare function secp256k1VerifySignature(messageHash: Uint8Array, signature: Uint8Array, publicKey: Uint8Array): boolean;
declare class Secp256k1 implements KeyPair {
    #private;
    /**
     * Generate a new secp256k1 key pair.
     * @returns A new secp256k1 key pair.
     */
    static makeKeyPair(): Secp256k1;
    /**
     * Derive a secp256k1 key pair from a mnemonic.
     * @param mnemonic - The English mnemonic to derive the key pair from.
     * @param coinType - The BIP-44 coin type to derive the key pair for.
     * @returns A new secp256k1 key pair.
     */
    static fromMnemonic(mnemonic: string, coinType?: number): Secp256k1;
    constructor(privateKey: Uint8Array);
    getPublicKey(compressed?: boolean): Uint8Array;
    get privateKey(): Uint8Array<ArrayBufferLike>;
    /**
     * Sign a message hash with the private key.
     * @param messageHash - The hash of the message to sign.
     * @returns The signature of the message hash.
     */
    createSignature(messageHash: Uint8Array, recovery?: boolean): Uint8Array;
    /**
     * Verify a signature of a message hash.
     * @param messageHash - The hash of the message that was signed.
     * @param signature - The signature to verify.
     * @returns True if the signature is valid, false otherwise.
     */
    verifySignature(messageHash: Uint8Array, signature: Uint8Array): boolean;
}

export { Secp256k1, secp256k1CompressPubKey, secp256k1RecoverPubKey, secp256k1VerifySignature };