/**
 * errors.ts
 * MajikSignature error hierarchy.
 */
export declare class MajikSignatureError extends Error {
    cause?: unknown;
    constructor(message: string, cause?: unknown);
}
export declare class MajikSignatureValidationError extends MajikSignatureError {
    field?: string;
    constructor(message: string, field?: string, cause?: unknown);
}
export declare class MajikSignatureVerificationError extends MajikSignatureError {
    constructor(message: string, cause?: unknown);
}
export declare class MajikSignatureKeyError extends MajikSignatureError {
    constructor(message: string, cause?: unknown);
}
export declare class MajikSignatureSerializationError extends MajikSignatureError {
    constructor(message: string, cause?: unknown);
}
/**
 * Thrown when a signer attempts to sign a file that has an allowlist
 * and their key (fingerprint + edPublicKey + mlDsaPublicKey) is not on it.
 * Raised before any cryptographic operation — the key is never used.
 */
export declare class MajikSignatureAllowlistError extends MajikSignatureError {
    /** The fingerprint of the signer that was rejected. */
    readonly signerId: string;
    constructor(message: string, signerId: string, cause?: unknown);
}