/// <reference types="node" />
export declare function assert(condition: boolean, message: string): void;
export declare function isScalar(x: Buffer): boolean;
export declare function isValidPrivateKey(privateKey: Buffer): boolean;
export declare function equalConstTime(b1: Buffer, b2: Buffer): boolean;
export declare function isValidKeyLength(length: number): boolean;
export declare function checkPrivateKey(privateKey: Buffer): void;
export declare function checkPublicKey(publicKey: Buffer): void;
export declare function checkMessage(msg: Buffer): void;
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