export interface Ed25519Keys {
    privateKey: string;
    publicSigningKey: string;
}
/**
 * @param privateKeyBase58 - string of the private key, if left unspecified, a random private key is generated
 */
export declare function generateKeys(privateKeyBase58?: string): Ed25519Keys;
/**
 * @param message - message you would like to signed
 * @param privateKey - string of the public key in base58
 * @returns signature that is in base58
 */
export declare function signMessage(message: string, privateKey: string): string;
/**
 * @param message - message that was signed
 * @param publicKey - string of the public key in base58
 * @param signature - string in base58
 * @returns boolean - true, if signature is valid, else false
 */
export declare function verifySignature(message: string, publicKey: string, signature: string): boolean;
/**
 * @param privateKey - string of the secret/private key in base58, either on Curve25519 or ED25519
 * @param publicKey - string of the public key in base58, either on Curve25519 or scalar multiplication public key based on a secret key
 * @returns secret share string in hex
 */
export declare function getSharedSecretHex(privateKey: string, publicKey: string): string;
/**
 * @param message - string in bytes
 * @param publicKey - string of the public key in base58 - ED25519
 * @returns ciphertext string in base64
 */
export declare function sealedBox(message: string, publicKey: string): string;
/**
 * @param ciphertext - string in hex
 * @param publicKey - string of the public key in base58 - ED25519
 * @param privateKey - string of the secret/private key in base58 - ED25519
 * @returns string of decrytped message
 */
export declare function sealedBoxOpen(ciphertext: string, publicKey: string, privateKey: string): string;
/**
 * @param publicKey - string of the public key ED25519 in base58
 * @returns converted public key on Curve 25519 in base58
 */
export declare function getPublicEncryptionKey(publicKey: string): string;
/**
 * @param privateKey - string of the secret/private key ED25519 in base58
 * @returns converted secret/private key on Curve 25519 in base58
 */
export declare function getPrivateEncryptionKey(privateKey: string): string;
/**
 * @param secretKey - string of the secret/private key ED25519 in base58
 * @returns a scalar multiplication public key based on a secret/private key.
 */
export declare function getXPublicKey(secretKey: string): string;
/**
 * @param masterKey - string of the secret/private key ED25519 in base58
 * @param index - subkey id used to derive seed key
 * @param context - context used to derive the seed key
 * @returns a new ed25519 signing key
 */
export declare function deriveIntoED25519Key(masterKey: string, index: number, context: string): string;
/**
 * @param masterKey - string of the secret/private key ED25519 in base58
 * @param index - subkey id used to derive seed key
 * @param context - context used to derive the seed key
 * @returns a derived key in hex
 */
export declare function deriveFromED25519Key(masterKey: string, index: number, context: string): string;