import type { SandboxTeeAttestationReportLike } from "./tangle-types.js";
/** Version of the canonical opaque quote carried by a confidential attestation. */
export declare const TANGLE_CONFIDENTIAL_ATTESTATION_QUOTE_VERSION: 1;
/** Kind discriminator prevents this codec from accepting another quote format. */
export declare const TANGLE_CONFIDENTIAL_ATTESTATION_QUOTE_KIND: "tangle-sandbox-tee";
/** Raw evidence bound before it can enter a portable attestation. */
export declare const MAX_TEE_EVIDENCE_BYTES = 16384;
/** Raw measurement bound before it can enter a portable attestation. */
export declare const MAX_TEE_MEASUREMENT_BYTES = 256;
/** Read-only report shape accepted by the quote encoder. */
export interface TangleConfidentialAttestationReport {
    readonly tee_type: string;
    readonly evidence: readonly number[];
    readonly measurement: readonly number[];
    readonly timestamp: number;
}
/**
 * Encode a Sandbox TEE report without decimal JSON byte arrays.
 *
 * The returned JSON uses a fixed key order and unpadded base64url byte fields.
 * `undefined` means the report is not a valid bounded report or the quote does
 * not fit the shared confidential-attestation field.
 */
export declare function encodeTangleConfidentialAttestationQuote(report: TangleConfidentialAttestationReport): string | undefined;
/**
 * Decode and canonicalize a provider quote.
 *
 * The parser rejects old numeric-array quotes, unknown fields, non-canonical
 * JSON, malformed base64url, and reports outside the provider bounds.
 */
export declare function decodeTangleConfidentialAttestationQuote(quote: unknown): SandboxTeeAttestationReportLike | undefined;