import { Item } from "structured-headers";
export declare type VerifyData = {
    readonly [key: string]: string | string[];
};
export declare type VerifyDataEntry = [Item, string | string[] | number | undefined];
export declare type HttpHeaders = {
    readonly [key: string]: string | string[] | undefined;
};
export declare enum VerifyFailureReasonType {
    MissingOrInvalidSignature = "MissingOrInvalidSignature",
    SignatureParseFailure = "SignatureParseFailure",
    MissingSignatureKey = "MissingSignatureKey",
    MissingKey = "MissingKey",
    UndefinedAlgorithm = "UndefinedAlgorithm",
    SignatureExpired = "SignatureExpired",
    GenerateVerifyDataFail = "GenerateVerifyDataFail",
    InvalidContentDigest = "InvalidContentDigest",
    ContentDigestMismatch = "ContentDigestMismatch",
    SignatureDecodeFailure = "SignatureDecodeFailure",
    FailedToVerify = "FailedToVerify"
}
export interface VerifyFailedResultReasonDetails {
    readonly cause?: unknown;
    readonly [key: string]: unknown;
}
export interface VerifySuccessResult {
    readonly verified: true;
}
export interface VerifyFailResult {
    readonly verified: false;
    readonly reason: {
        readonly type: VerifyFailureReasonType;
        readonly message: string;
        readonly details?: VerifyFailedResultReasonDetails;
    };
}
export declare type VerifyResult = VerifySuccessResult | VerifyFailResult;