export interface KeyPair {
    publicKey: Uint8Array;
    secretKey: Uint8Array;
}
export interface X25519KeyPair {
    publicKey: Uint8Array;
    privateKey: Uint8Array;
}
export interface Falcon512KeyPair {
    publicKey: Uint8Array;
    privateKey: Uint8Array;
}
export interface MLKEMKeyPair {
    publicKey: Uint8Array;
    secretKey: Uint8Array;
}
export interface PQPreKeyBundle {
    registrationId: number;
    deviceId: number;
    identityKey: Uint8Array;
    falcon512PublicKey: Uint8Array;
    signedPreKey: {
        keyId: number;
        publicKey: Uint8Array;
        signature: Uint8Array;
    };
    oneTimePreKey?: {
        keyId: number;
        publicKey: Uint8Array;
    };
    pqPreKey: {
        keyId: number;
        publicKey: Uint8Array;
        signature: Uint8Array;
    };
}
export interface PQXDHResult {
    rootKey: Uint8Array;
    chainKey: Uint8Array;
    ourDHKeyPair: X25519KeyPair;
    peerDHPublicKey: Uint8Array;
    peerIdentityKey: Uint8Array;
    pqSharedSecret: Uint8Array;
}
export interface RatchetState {
    rootKey: Uint8Array;
    sendingChainKey: Uint8Array;
    sendingMessageCount: number;
    receivingChainKey: Uint8Array;
    receivingMessageCount: number;
    ourDHKeyPair: X25519KeyPair;
    peerDHPublicKey: Uint8Array | null;
    previousSendingCount: number;
    skipMessageKeys: Map<string, Uint8Array>;
}
export interface EncryptedMessage {
    type: MessageType;
    body: Uint8Array;
    registrationId?: number;
}
export declare enum MessageType {
    PREKEY_MESSAGE = 3,
    NORMAL_MESSAGE = 1
}
export type SPQRPhase = "idle" | "sending_pk" | "waiting_for_ct" | "sending_ct_pk" | "done";
export type SPQRReceivePhase = "idle" | "receiving_pk" | "receiving_ct" | "done";
export interface SPQRState {
    cycleId: number;
    sendingPQKeys: MLKEMKeyPair | null;
    sendingChunks: Uint8Array[];
    sendingChunkIndex: number;
    sendingPhase: SPQRPhase;
    receivedChunks: Map<number, Uint8Array>;
    receivingPhase: SPQRReceivePhase;
    expectedTotalChunks: number;
    receivedSharedSecret: Uint8Array | null;
    currentSPQRKey: Uint8Array;
    spqrChainKey: Uint8Array;
    spqrMessageCount: number;
}
export interface SPQRChunk {
    cycleId: number;
    chunkIndex: number;
    totalChunks: number;
    data: Uint8Array;
}
export interface PQSessionState {
    pqxdhComplete: boolean;
    ratchetState: RatchetState;
    spqrState: SPQRState;
    peerIdentityKey: Uint8Array;
    peerRegistrationId: number;
    peerDeviceId: number;
    pendingInitialMessage?: {
        ephemeralPublicKey: Uint8Array;
        mlkemCiphertext: Uint8Array;
        identityKey: Uint8Array;
        signedPreKeyId: number;
        oneTimePreKeyId: number | null;
        pqPreKeyId: number;
    };
}
export interface PQIdentity {
    x25519KeyPair: X25519KeyPair;
    registrationId: number;
}
export interface SerializedRatchetState {
    rootKey: string;
    sendingChainKey: string;
    sendingMessageCount: number;
    receivingChainKey: string;
    receivingMessageCount: number;
    ourDHPrivateKey: string;
    ourDHPublicKey: string;
    peerDHPublicKey: string | null;
    previousSendingCount: number;
    skipMessageKeys: Record<string, string>;
}
export interface SerializedSPQRState {
    cycleId: number;
    sendingPQPublicKey: string | null;
    sendingPQSecretKey: string | null;
    sendingChunks: string[];
    sendingChunkIndex: number;
    sendingPhase: string;
    receivedChunks: Record<string, string>;
    receivingPhase: string;
    expectedTotalChunks: number;
    receivedSharedSecret: string | null;
    currentSPQRKey: string;
    spqrChainKey: string;
    spqrMessageCount: number;
}
export interface SerializedPQSessionState {
    pqxdhComplete: boolean;
    ratchetState: SerializedRatchetState;
    spqrState: SerializedSPQRState;
    peerIdentityKey: string;
    peerRegistrationId: number;
    peerDeviceId: number;
    pendingInitialMessage?: {
        ephemeralPublicKey: string;
        mlkemCiphertext: string;
        identityKey: string;
        signedPreKeyId: number;
        oneTimePreKeyId: number | null;
        pqPreKeyId: number;
    };
}
export declare enum PQErrorCode {
    INVALID_KEY = "INVALID_KEY",
    HANDSHAKE_FAILED = "HANDSHAKE_FAILED",
    ENCRYPTION_FAILED = "ENCRYPTION_FAILED",
    DECRYPTION_FAILED = "DECRYPTION_FAILED",
    SESSION_NOT_FOUND = "SESSION_NOT_FOUND",
    SPQR_ERROR = "SPQR_ERROR",
    ERASURE_ERROR = "ERASURE_ERROR",
    SERIALIZATION_ERROR = "SERIALIZATION_ERROR"
}
export declare class PQError extends Error {
    code: PQErrorCode;
    constructor(code: PQErrorCode, message: string);
}
export declare const DEFAULT_DEVICE_ID = 1;
export declare const ROOT_KEY_SIZE = 32;
export declare const CHAIN_KEY_SIZE = 32;
export declare const MESSAGE_KEY_SIZE = 32;
export declare const DH_KEY_SIZE = 32;
export declare const SIGNATURE_SIZE = 666;
export declare const MLKEM_PUBLIC_KEY_SIZE = 1184;
export declare const MLKEM_SECRET_KEY_SIZE = 2400;
export declare const MLKEM_CIPHERTEXT_SIZE = 1088;
export declare const MLKEM_SHARED_SECRET_SIZE = 32;
export declare const AES_GCM_IV_SIZE = 12;
export declare const AES_GCM_TAG_SIZE = 16;
export declare const SPQR_CHUNK_DATA_SIZE = 34;
export declare const SPQR_CHUNK_HEADER_SIZE = 8;
export declare const SPQR_CHUNK_SIZE: number;
export declare const SPQR_DATA_CHUNKS = 28;
export declare const SPQR_TOTAL_CHUNKS = 56;