import { ConfigService } from '@nestjs/config';
type DiditWebhookHeaders = {
    timestamp?: string;
    signatureV2?: string;
    signatureSimple?: string;
};
export declare class DiditWebhookService {
    private readonly configService;
    constructor(configService: ConfigService);
    private getSecret;
    private isFreshTimestamp;
    private shortenFloats;
    private sortKeys;
    private timingSafeEqualHex;
    verify(headers: DiditWebhookHeaders, jsonBody: any): {
        verified: boolean;
        method?: string;
    };
}
export {};
