/**
 * @fileoverview LedgerEntrySerializer — deterministic binary serialization
 * for blockchain ledger entries.
 *
 * Binary format (hashable content):
 *   sequenceNumber  uint32 BE  (4 bytes)
 *   timestamp       uint64 BE  (8 bytes, ms since epoch)
 *   hasPreviousHash uint8      (0x00 = null, 0x01 = present)
 *   previousHash    0 | 64     (SHA3-512 bytes, present when flag = 0x01)
 *   pubKeyLength    uint32 BE  (4 bytes)
 *   signerPublicKey variable
 *   payloadLength   uint32 BE  (4 bytes)
 *   payload         variable
 *
 * Full serialized entry:
 *   magic           4 bytes    0x4C454447 ("LEDG")
 *   version         2 bytes    0x0001
 *   hashableContent variable
 *   entryHash       64 bytes   SHA3-512
 *   signature       64 bytes   SECP256k1
 *
 * @see Design: Block Chain Ledger — LedgerEntrySerializer
 * @see Requirements 2.1–2.7, 9.1, 9.3
 */
import { ILedgerEntry } from '../interfaces/ledger/ledgerEntry';
import { ChecksumService } from '../services/checksum.service';
import { Checksum } from '../types/checksum';
/**
 * Deterministic binary serializer / deserializer for ledger entries.
 *
 * All multi-byte integers use big-endian byte order.
 * Only Uint8Array is used — no Node.js Buffer dependency.
 */
export declare class LedgerEntrySerializer {
    private readonly checksumService;
    constructor(checksumService: ChecksumService);
    /**
     * Serialize the hashable portion of an entry (everything except entryHash
     * and signature). The output is the input to SHA3-512 for entryHash
     * computation.
     */
    serializeForHashing(entry: Omit<ILedgerEntry, 'entryHash' | 'signature'>): Uint8Array;
    /**
     * Serialize a complete ledger entry including magic, version, hashable
     * content, entryHash, and signature.
     */
    serialize(entry: ILedgerEntry): Uint8Array;
    /**
     * Deserialize a Uint8Array back into an ILedgerEntry.
     *
     * Validates magic bytes, version, minimum size, and field lengths.
     * Throws LedgerSerializationError on any invalid input.
     */
    deserialize(data: Uint8Array): ILedgerEntry;
    /**
     * Compute the entryHash for a partial entry (without entryHash and
     * signature) by hashing the serializeForHashing() output with SHA3-512.
     */
    computeEntryHash(entry: Omit<ILedgerEntry, 'entryHash' | 'signature'>): Checksum;
    /**
     * Ensure there are at least `needed` bytes remaining from `offset`.
     * Throws FieldOverflow if not.
     */
    private ensureRemaining;
}
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