@gorbchain-xyz/chaindecode/dist/src/crypto/utils.d.ts

GorbchainSDK V1.3+ - Complete Solana development toolkit with advanced cryptography, messaging, and collaboration features. Build secure applications with blockchain, DeFi, and end-to-end encryption.

/**
 * Utility functions for cryptographic operations
 */
export declare const ENCRYPTION_ALGORITHM = "aes-256-gcm";
export declare const KEY_SIZE = 32;
export declare const IV_SIZE = 16;
export declare const SALT_SIZE = 32;
export declare const AUTH_TAG_SIZE = 16;
export declare const KEY_DERIVATION_ITERATIONS = 100000;
/**
 * Generate cryptographically secure random bytes
 */
export declare function generateRandomBytes(length: number): Uint8Array;
/**
 * Derive a key from password/secret using PBKDF2
 */
export declare function deriveKey(secret: Uint8Array, salt: Uint8Array, iterations?: number): Uint8Array;
/**
 * Generate a key pair for encryption (compatible with Solana format)
 */
export declare function generateKeyPair(): {
    publicKey: Uint8Array;
    privateKey: Uint8Array;
};
/**
 * Convert ed25519 public key to curve25519 for encryption
 */
export declare function ed25519ToCurve25519PublicKey(ed25519PublicKey: Uint8Array): Uint8Array;
/**
 * Convert ed25519 private key to curve25519 for encryption
 */
export declare function ed25519ToCurve25519PrivateKey(ed25519PrivateKey: Uint8Array): Uint8Array;
/**
 * Perform symmetric key exchange
 * This ensures both sides get the same shared secret regardless of call order
 */
export declare function performKeyExchange(privateKey: Uint8Array, publicKey: Uint8Array): Uint8Array;
/**
 * Encrypt data using AES-256-GCM
 */
export declare function encryptAES(data: Uint8Array, key: Uint8Array, iv?: Uint8Array): {
    encrypted: Uint8Array;
    iv: Uint8Array;
    authTag: Uint8Array;
};
/**
 * Decrypt data using AES-256-GCM
 */
export declare function decryptAES(encrypted: Uint8Array, key: Uint8Array, iv: Uint8Array, authTag: Uint8Array): Uint8Array;
/**
 * Sign data using ed25519
 */
export declare function signData(data: string | Uint8Array, privateKey: string | Uint8Array): Uint8Array;
/**
 * Verify signature using ed25519
 */
export declare function verifySignature(data: string | Uint8Array, signature: Uint8Array | string, publicKey: Uint8Array | string): boolean;
/**
 * Compress data using zlib
 */
export declare function compressData(data: Uint8Array): Promise<Uint8Array>;
/**
 * Decompress data using zlib
 */
export declare function decompressData(compressed: Uint8Array): Promise<Uint8Array>;
/**
 * Generate a deterministic ID from multiple inputs
 */
export declare function generateId(...inputs: (string | Uint8Array)[]): string;
/**
 * Combine multiple buffers
 */
export declare function combineBuffers(...buffers: Uint8Array[]): Uint8Array;
/**
 * Split a buffer at specific positions
 */
export declare function splitBuffer(buffer: Uint8Array, ...lengths: number[]): Uint8Array[];
/**
 * Convert string to Uint8Array
 */
export declare function stringToBytes(str: string): Uint8Array;
/**
 * Convert Uint8Array to string
 */
export declare function bytesToString(bytes: Uint8Array): string;
/**
 * Validate Solana public key
 */
export declare function isValidPublicKey(publicKey: string): boolean;
/**
 * Get current timestamp in seconds
 */
export declare function getCurrentTimestamp(): number;
/**
 * Check if a timestamp has expired
 */
export declare function hasExpired(timestamp: number, ttlSeconds: number): boolean;