import type { EncryptionSession } from '@seald-io/sdk/lib/main.js';
export declare function encryptString(fileContent: string, filename: string, encryptionSession: EncryptionSession): Promise<string>;
export declare function decryptString(fileContent: string, encryptionSession: EncryptionSession): Promise<string>;
export declare function encryptURI(fileURI: string, filename: string, encryptionSession: EncryptionSession): Promise<string>;
export declare function decryptURI(fileURI: string, encryptionSession: EncryptionSession): Promise<{
    filename: string;
    messageId: string;
    path: string;
}>;