import { Observable } from 'rxjs';
import { Ed25519Challenge, Ed25519SignedResponse, Ed25519VerificationResult, Ed25519VerificationService } from './ed25519-verification.model';
/**
 * Default DI binding for Ed25519VerificationService until the backend ships
 * the real challenge/verify endpoints. Intentionally fails closed (throws)
 * rather than pretending to verify anything, so accidental use in a login
 * path is loud instead of silently accepting unsigned sessions.
 */
export declare class NoopEd25519VerificationService implements Ed25519VerificationService {
    requestChallenge(): Observable<Ed25519Challenge>;
    verify(_response: Ed25519SignedResponse): Observable<Ed25519VerificationResult>;
}