export interface Signer {
    public(): Uint8Array;
    sign(message: Uint8Array): Promise<Uint8Array>;
}
export interface ContextSigner {
    public(): Uint8Array;
    sign(context: string, message: Uint8Array): Promise<Uint8Array>;
}
export declare function verify(context: string, message: Uint8Array, signature: Uint8Array, publicKey: Uint8Array): boolean;
export declare class BlindContextSigner implements ContextSigner {
    signer: Signer;
    constructor(signer: Signer);
    public(): Uint8Array;
    sign(context: string, message: Uint8Array): Promise<Uint8Array>;
}
export declare class NobleSigner implements Signer {
    key: Uint8Array;
    constructor(key: Uint8Array, note: string);
    static fromRandom(note: string): NobleSigner;
    static fromPrivate(priv: Uint8Array, note: string): NobleSigner;
    public(): Uint8Array;
    sign(message: Uint8Array): Promise<Uint8Array>;
}