import { ConcordiumGRPCClient } from '../../grpc/index.js';
import { AttributeKey, HexString, Network } from '../../types.js';
import { BlockHash } from '../../types/index.js';
import { CredentialStatus, CredentialsInputsIdentity, DIDString } from '../../web3-id/index.js';
import { VerifiableCredentialV1 } from './index.js';
import { AtomicStatementV1 } from './proof.js';
import { ZKProofV4 } from './types.js';
/**
 * A verifiable credential based on identity information from an identity provider.
 * This credential type contains zero-knowledge proofs about identity attributes
 * without revealing the actual identity information.
 */
type IdentityCredential = {
    /** Type identifiers for this credential format */
    type: ['VerifiableCredential', 'ConcordiumVerifiableCredentialV1', 'ConcordiumIdBasedCredential'];
    /** The credential subject containing identity-based statements */
    credentialSubject: {
        /** The identity disclosure information also acts as ephemeral ID */
        id: HexString;
        /** Statements about identity attributes (should match request) */
        statement: AtomicStatementV1<AttributeKey>[];
    };
    /** ISO formatted datetime specifying when the credential is valid from */
    validFrom: string;
    /** ISO formatted datetime specifying when the credential expires */
    validUntil: string;
    /** The zero-knowledge proof for attestation */
    proof: ZKProofV4;
    /** Issuer of the original ID credential */
    issuer: DIDString;
};
/**
 * A verifiable credential based on identity information from an identity provider.
 * This credential type contains zero-knowledge proofs about identity attributes
 * without revealing the actual identity information.
 */
export type Identity = IdentityCredential;
/**
 * A verifiable credential based on an account credential on the Concordium blockchain.
 * This credential type contains zero-knowledge proofs about account credentials
 * and their associated identity attributes.
 */
type AccountCredential = {
    /** Type identifiers for this credential format */
    type: ['VerifiableCredential', 'ConcordiumVerifiableCredentialV1', 'ConcordiumAccountBasedCredential'];
    /** The credential subject containing account-based statements */
    credentialSubject: {
        /** The account credential identifier as a DID */
        id: DIDString;
        /** Statements about account attributes (should match request) */
        statement: AtomicStatementV1<AttributeKey>[];
    };
    /** The zero-knowledge proof for attestation */
    proof: ZKProofV4;
    /** The issuer of the ID credential used to open the account credential */
    issuer: DIDString;
};
/**
 * A verifiable credential based on an account credential on the Concordium blockchain.
 * This credential type contains zero-knowledge proofs about account credentials
 * and their associated identity attributes.
 */
export type Account = AccountCredential;
/**
 * Union type representing all supported verifiable credential formats
 * in Concordium verifiable presentations.
 *
 * The structure is reminiscent of a w3c verifiable credential
 */
type Credential = IdentityCredential | AccountCredential;
/**
 * Union type representing all supported verifiable credential formats
 * in Concordium verifiable presentations.
 *
 * The structure is reminiscent of a w3c verifiable credential
 */
export type Type = Credential;
export declare function isIdentityCredential(credential: Credential): credential is IdentityCredential;
export declare function isAccountCredential(credential: Credential): credential is AccountCredential;
/**
 * The public data needed to verify an account based verifiable credential.
 */
export type AccountVerificationMaterial = {
    /** Union tag */
    type: 'account';
    /** Issuer of the credential. */
    issuer: number;
    /** Commitments for the ID attributes of the account */
    commitments: Partial<Record<AttributeKey, HexString>>;
};
/**
 * The public data needed to verify an identity based verifiable credential.
 */
export type IdentityVerificationMaterial = CredentialsInputsIdentity;
/**
 * Union type of all verification material types used for verification.
 * These inputs contain the public credential data needed to verify proofs.
 */
export type VerificationMaterial = AccountVerificationMaterial | IdentityVerificationMaterial;
/** Contains the credential status and inputs required to verify a corresponding credential proof */
export type MetadataVerificationResult = {
    /** The credential status */
    status: CredentialStatus;
    /** The public data required to verify a corresponding credential proof */
    inputs: VerificationMaterial;
};
/**
 * Verifies the public metadata of the {@linkcode VerifiableCredentialProof}.
 *
 * @param credential - The credential proof to verify metadata for
 * @param grpc - The {@linkcode ConcordiumGRPCClient} to use for querying
 * @param network - The target network
 * @param [blockHash] - The block to verify the proof at. If not specified, the last finalized block is used.
 *
 * @returns The corresponding verification material along with a credential status if successful.
 * @throws If credential metadata could not be successfully verified
 */
export declare function verifyMetadata(credential: VerifiableCredentialV1.Type, grpc: ConcordiumGRPCClient, network: Network, blockHash?: BlockHash.Type): Promise<MetadataVerificationResult>;
export {};