import type { ReadStream } from 'node:tty';
/**
 * Read a passphrase from a TTY without echoing it. Returns the passphrase as a
 * Buffer so the caller can zeroize it after use.
 *
 * The implementation reads byte-by-byte in raw mode, handling Enter, backspace,
 * and Ctrl-C. It is intentionally testable: pass a stdin/stderr override.
 */
export interface ReadPassphraseDeps {
    stdin?: ReadStream;
    stderr?: NodeJS.WritableStream;
}
export declare function readPassphrase(prompt: string, deps?: ReadPassphraseDeps): Promise<Buffer>;
//# sourceMappingURL=passphrase.d.ts.map