import type { SignedViewerResourceV1, ViewerDetachedSignatureV1 } from '@xyo-network/payload-viewer-protocol';
/** Digest and signature verification primitives used by the payload viewer store. */
export interface PayloadViewerCryptoV1 {
    digest: (bytes: Uint8Array) => Promise<Uint8Array>;
    verify: (publicKey: string, signature: ViewerDetachedSignatureV1, message: Uint8Array) => Promise<boolean>;
}
/** Web Crypto implementation of {@link PayloadViewerCryptoV1} using SHA-256 and Ed25519. */
export declare class WebCryptoPayloadViewerCryptoV1 implements PayloadViewerCryptoV1 {
    private readonly subtle;
    constructor(subtle?: SubtleCrypto);
    digest(bytes: Uint8Array): Promise<Uint8Array<ArrayBuffer>>;
    verify(publicKey: string, signature: ViewerDetachedSignatureV1, message: Uint8Array): Promise<boolean>;
}
/** Inputs for verifying a signed viewer resource against known public keys. */
export interface VerifySignedViewerResourceOptionsV1 {
    bytes: Uint8Array;
    crypto: PayloadViewerCryptoV1;
    publicKeys: ReadonlyMap<string, string>;
    resource: SignedViewerResourceV1;
}
/** Verifies size, digest, and Ed25519 signatures for a signed viewer resource. */
export declare const verifySignedViewerResourceV1: ({ bytes, crypto, publicKeys, resource, }: VerifySignedViewerResourceOptionsV1) => Promise<string>;
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