/**
 * Reversible symmetric encryption for secrets that must be recoverable
 * at rest (e.g. TOTP seeds — unlike passwords, they cannot be one-way
 * hashed because verification needs the plaintext).
 */
export interface ISymmetricCipher {
    encrypt(plain: string): Promise<string>;
    decrypt(blob: string): Promise<string>;
}
//# sourceMappingURL=types.d.ts.map