export declare class Crypto {
    private static readonly KEY_SIZE;
    static generateKeyPair(): {
        publicKey: string;
        privateKey: string;
    };
    static sign(data: string, privateKey: string): string;
    static verify(data: string, signature: string, publicKey: string): boolean;
    static generateId(): string;
    static hash(data: string): string;
    static generateMachineId(): Promise<string>;
}
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