Implementations of SHA, MD5, and HMAC cryptographic functions.

A Flutter plugin for securely storing sensitive data using encrypted storage.

A Dart library implementing cryptographic algorithms and primitives, modeled on the BouncyCastle library.

An ASN1 parser library for Dart. Encodes / decodes from ASN1 Objects to BER bytes

An easy to use JSON Web Token (JWT) implementation in Dart with all algorithms supported.

A set of high-level APIs over PointyCastle for two-way cryptography.

Cryptographic algorithms for encryption, digital signatures, key agreement, authentication, and hashing. AES, Chacha20, ED25519, and more. Cross-platform (mobile, desktop, JS, WASM).

A Dart implementation (port) of the XXH3 hashing algorithm from xxHash.

Dart port of ed25519 from Go Cryptography ed25519

A library for doing cryptographic signing/verifying and encrypting/decrypting.

Common util classes for Strings, Dates, X509, PKCS, Cryptographie and more.

Base32 Encoder and Decoder for Dart, primarily used for One Time Password secrets.

A CBOR library for Dart. An RFC8949 compliant encoding/decoding CBOR implementation.

Base58Check encoding using dart:convert interface

Library implementing Bitcoins BIP173 (Bech32 encoding) specification in a Flutter friendly fashion.

The Dart implementation of the PyNaCl APIs with the TweetNaCl cryptographic library

Collection of cyclic redundancy check (CRC) routines as Dart converters.

A Dart-only implementation of `amplify_secure_storage`, using `dart:ffi` for Desktop and `dart:html` for Web.

A package for storing secrets, intended for use in Amplify libraries.

PEM encoding/decoding of textual keys following RFC 7468, supporting both lax/strict-mode, and certificates chains of concatenated PEM blocks.

Secure hash functions, checksum generators, and key derivation algorithms optimized for Dart.

A library for doing cryptographic signing/verifying and encrypting/decrypting.

This package use jBCrypt modified code to work with Dart VM.

Javascript Object Signing and Encryption (JOSE) library supporting JWE, JWS, JWK and JWT

Renamed to convertlib. This package now re-exports convertlib for backward compatibility and is deprecated. Please migrate to the convertlib package.

A set of high-level APIs over PointyCastle for two-way cryptography.

Privacy-Enhanced Mail (PEM) parser, RSA, PKCS#1, PKCS#8, X.509

Makes 'package:cryptography' use platform APIs in Android, iOS, and Mac OS X. The package can make performance up to 100 times better.

Dart library that provides simple and elegant way to encode and decode ASN1

Flutter library for improving app security and threat monitoring on Android and iOS mobile devices. Learn more about provided features on the freeRASP's homepage first.

Javascript Object Signing and Encryption (JOSE) library supporting JWE, JWS, JWK and JWT

Dart library for parsing and working with X.509 certificates.

Dart implementation of Bitcoin BIP39 Mnemonic code for generating deterministic keys

Dart implementations of the Mersenne Twister pseudo-random number generator.

basic elliptic curves in pure dart

Crypto wallet package for Bitcoin, Ethereum and Tron written in pure Dart.

Implementation of Standards for Efficient Cryptography (SEC) including SECP256K1 and SECP256R1.

Dart package to compute base 58 encoding. This encoding is typically used for crypto currencies such as Bitcoin.

Cryptographic algorithms for encryption, digital signatures, key agreement, authentication, and hashing. AES, Chacha20, ED25519, X25519, Argon2, and more. Good cross-platform support.

Encoder and decoder for a canonical JSON format, useful when cryptographically hashing or signing JSON objects.

A Celo compatible Dart library to connect to Ethereum clients. Send transactions and interact with smart contracts! Pay transaction fees using `feeCurrencies` on Celo.

EIP-1559 Ethereum and Web3 market fee and gas estimation for Dart.

Dart port of x25519 from Go Cryptography curve25519.

Cross-platform implementation of Web Cryptography APIs for Dart.

Dart bindings for libsodium, for the Dart-VM and for the Web

Package ecdsa implements the Elliptic Curve Digital Signature Algorithm, as defined in FIPS 186-3.

Cryptography dart library to encrypt, decrypt, sign and verify messages

Utility functions and methods to generate random BigInt, generate random prime BigInt and check if BigInt is prime.

A simple Dart library for asymmetric encryption and digital signatures

Provides bindings to the vodozemac library that has Olm and Megolm implementation from Dart.

Pure Dart Argon2 algorithm (the winner of the Password Hash Competition 2015) for all Dart platforms (JS/Web, Flutter, VM/Native).

fast_base58 provides fast implementation of base58 encoding, and supports flickr alphabet and Bitcoin/IPFS alphabet(default).

Dart library for parsing and working with X.509 certificates.

A port of jBCrypt to Dart. It allows to encrypt passwords using BCrypt with a configurable work factor and check passwords.

Package for at_protocol cryptographic and hashing operations

A set of base16 (hex), base32 (Rfc, RfcHex, Crockford, ZBase, GeoHash, WordSafe), Base58 (Bitcoin, Flickr, Ripple) with Base58Check, base85 (Ascii85, Z85, IPv6) codecs

Makes 'package:cryptography_plus' use platform APIs in Android, iOS, and Mac OS X. The package can make performance up to 100 times better.

Lightweight implementation of JSON Web Tokens (JWT).

library for use RSA with support for android and ios, macOS, linux, windows and web

Pkcs7 message parser and verification library Can parse and generate x509 certificates, request Timestamp, build and verify an s-mime PKCS #7 message.

This algorithm is a pure dart implementation of the DES and Triple DES algorithms.

XXTEA for Dart XXTEA is a fast and secure encryption algorithm. This is a XXTEA library for Dart.

SHA3 for dart. It is unbelievable that such a language doesnt has such a basic library!

Comprehensive Crypto & Blockchain Toolkit, Pure Dart, Cross-Platform, Encoding, Cryptography, Addresses, Mnemonics, & More.

BIP-0032 like derivation for ed25519 curve

Pure Dart post-quantum cryptography. Zero dependencies. ML-KEM, ML-DSA, and SLH-DSA with checked-in NIST vector evidence.

A Dart library for generating 5-character alphanumeric Steam TOTP codes.

Dart common utils library.Contain DateUtil, EncryptUtil, JsonUtil, LogUtil, MoneyUtil, NumUtil, ObjectUtil, RegexUtil, TextUtil, TimelineUtil, TimerUtil.

BIP340 (Schnorr) signature and verification.

Mnemonic code for generating deterministic keys a.k.a. BIP39.

HTTP-ECE decryption for WebPush content based on RFC 8291.

Provides JWT utilities for Dart including issuing a token, verifing a token and parsing a token.

One-way string hashing for salted passwords using the Unix crypt format

A new Flutter package that calculate crc32 checksum value for given string.

Dart port of DropBox's zxcvbn library.

Signal Protocol libray for Dart native and Flutter, pure Dart implementation of the the Signal Protocol

Dart encryption library for encrypting/decrypting files, plain text and binary data in AES Crypt file format. Supports all platforms including web.

Annotation used to make a Dart object borsh serializable.

libcrypto from OpenSSL for Android and iOS to be used with dart:ffi

MIRACL Trust Flutter Plugin

A BIP32 (https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki) compatible library for Flutter writing by Dart.

A simple FNV-1 hash implementation used across multiple projects within our organization.

Dart bindings for Olm, an implementation of the olm and megolm cryptographic ratchets

Server-side Dart library for the ALTCHA Proof-of-Work v2 challenge system. Create, solve, and verify challenges using PBKDF2, SHA, Scrypt, or Argon2id.

A versatile library for Bitcoin, Dogecoin, Litecoin, Dash, BSV, and BCH. Supports P2PKH, P2SH, P2WPKH, P2WSH, P2TR, with advanced creation, signing, and spending capabilities.

edwards25519, where security meets simplicity in cryptography!!

Enable you to quickly implement rsa encryption in your flutter app, it covers everything from Generating key pairs, encrypt and decrypting strings.

Triple DES and DES block cipher implementation ported from CryptoJS

An implementation of Dart's HttpClient with certificate pinning against SPKI hashes.

Library implementing Bitcoins BIP32 (Hierarchical Deterministic key derivation) specification in a Flutter friendly fashion.

Flutter Plugin for Couchbase Lite, an embedded, NoSQL JSON Document Style database, supporting Blobs, Encryption, SQL++ Queries, Live Queries, Full-Text Search and Data Sync.

library for use OpenPGP with support for android and ios, macOS, linux, windows and web

A set of cryptographic hashing functions implemented in pure Dart

Encrypt and decrypt data using the secp256k1 elliptic curve. This is the High level API build from pointycastle. A fork of secp256k1Cipher.

Affinidi SSI library for Dart provides a comprehensive suite of tools and libraries for implementing Self-Sovereign Identity (SSI) solutions.

Couchbase Lite for pure Dart apps: An embedded, NoSQL JSON Document Style database, supporting Blobs, Encryption, SQL++ Queries, Live Queries, Full-Text Search and Data Sync.

Serialize an ed25519 key into the openssh format

The bindings for argon2's C reference library. Does not include the library loading itself.

An interface for all dargon2 hashing functions. Provides the base outline for all implementations.

A BIP32 (https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki) compatible library for Flutter writing by Dart.

A Flutter implementation of dargon2, providing Argon2 Password Hashing functionality for mobile & web apps

A simple pure dart package used for creating and validating Json Web Tokens using the private and public key provided, refer to documentation for more information.

Pure-Dart wallet primitives for the Crossmint Flutter SDK — wallet models, signer abstractions, and API contracts.

Package to securely manage environment variables and perform AES encryption/decryption in Flutter and Dart.

Native device-signer plugin for the Crossmint Flutter SDK — hardware-backed key generation and signing via Secure Enclave (iOS) and Android Keystore.

Pure-Dart verifiable credentials primitives for the Crossmint Flutter SDK — credential models, issuance, and verification.

A Dart package for implementing secure and private communication on your app using DIDComm v2 Messaging protocol.

A secure version of get_storage, which was a fast, extra light and synchronous key-value storage written entirely in Dart

Ethereum signature utility porting from JS

A dart library to generate, checksum, and validate Ethereum addresses

secp256k1_ecdsa helps to generate secp256k1 key pairs, sign/verify messages, compress/expand keys and recover public keys.

AES-256 encryption and decryption using PBKDF2 + AES-GCM.

A Stellar SDK for Flutter, that can query Horizon and Soroban RPC, build, signs and submit transactions to Stellar. Supports many SEPs and can deploy and invoke Soroban Contracts.

A DTLS library for Dart, implemented via FFI bindings to OpenSSL.

Provide Blake encryption support, dart implementation library

Couchbase Lite is an embedded, NoSQL JSON Document Style database, supporting Blobs, Encryption, SQL++ Queries, Live Queries, Full-Text Search and Data Sync.

A BIP173 / BIP350 compatible Bech32/Bech32m encoding/decoding library.

Proxy Re-Encryption (PRE) utilities for Dart enabling secure, server-mediated sharing of encrypted data without exposing plaintext.

A Dart package for implementing the Verifiable Data Sharing Protocol (VDSP) using DIDComm v2.1 to facilitate secure data sharing.

A Dart package for implementing secure and private communication on your app using DIDComm v2.1 Messaging protocol.

A Dart package for implementing the Verifiable Data Issuance Protocol (VDIP) using DIDComm v2.1 to facilitate secure credential issuance.

Converting BIP39 entropy to valid Substrate SecretKeys.

Encodes and decodes keys to/from different text file formats.

Pure-Dart symmetric ciphers (AES modes, ChaCha20, XChaCha20, Salsa20, XSalsa20), their Poly1305 AEAD variants, and ML-KEM post-quantum key encapsulation (FIPS 203).

builds the olm library for android and ios to be used with dart:ffi

A sr25519 cryptography library in pure Dart

Strobe contains implementation of the Strobe protocol framework.

Dart library for parsing and working with X.509 certificates.

Ed25519-like signatures with X25519 keys, Axolotl-style.

A tiny cup, a mighty punch - ristretto255!!

Substrate Keyring.

Base package defining the interface for an Argon2 implementation.

Merlin is a STROBE-based transcript construction for zero-knowledge proofs.

Dart implementation of finite field Diffie-Hellman. Based on PKCS#3.

Pure secp256k1 signature algorithm implement for dart language which uses pure dart and basic types to represent all matters

This package uses it to encode/decode the number as bitcoin variable length integer.

Chat SDK is a package that provides secure, end-to-end encrypted messaging using Decentralised Identifiers (DID) and DIDComm v2.1 protocol.

Threshold string compression with multiple GZip, LZString, ZLib, BZip2

A set of high-level APIs over PointyCastle for two-way cryptography.

Dart wrapper for libsignal. Signal Protocol implementation for end-to-end encryption, sealed sender, group messaging, and secure cryptographic operations.

Streamline Ethereum, Tron, Solana, sui, aptos and Cardano operations. Effortlessly create transactions, interact with smart contracts, sign, and send transactions.

Flutter Plugin supporting key generation and signing with Android Keystore and iOS SecureEnclave keys.

MurmurHash v3 Implementation in Dart.

Dart wrapper for OpenMLS — a Rust implementation of the Messaging Layer Security (MLS) protocol (RFC 9420)

Flutter plugin to calculate a file checksum as MD5 hash, using a platform native implementation.

基于Dart语言实现的国密SM2、SM3、SM4算法。

KeepassX format implementation in pure dart. (kdbx 3.x and 4.x support).

JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties.

JWK (JSON Web Key) encoding and decoding (for package:cryptography).

Tools for the NANO and BANANO cryptocurrencies including key generation, signing, encryption, and more.

PBKDF2 password hashing utility

encrypt_file_loader is a library that can store files encrypted with webcrypto.

Verifiable Relationship Credential (VRC), Relationship Card (R-Card), and liveness credential domain models, builders, and repository interfaces for the Meeting Place SDK.

A pure dart implementation of the 16-word seed scheme for monero

Crypto wallets management module for Citadel.one client application. Provides a standardized interface for working with wallets of various crypto networks.

A BIP32 with SLIP132 support for Dart/Flutter community.

BIP32 hierarchical deterministic key derivation utilities used by NDK.

Production-ready Dart SDK for Accumulate blockchain. Multi-signature support (Ed25519, BTC, ETH, RSA, ECDSA), SmartSigner API, complete V2/V3 protocol.

A decoder for Bitcoins Lightning Network BOLT11 invoices for use in wallet apps.

Dart implementation of Solana JSON RPC API client. Provides convenient interface for the RPC methods.

Dart component to compute base 58 encoding. This encoding is typically used for cryptocurrencies such as Bitcoin.

A Dart implementation for Flutter of BIP-329: Wallet Labels Export Format for Bitcoin wallets.

A pure Dart implementation of BIP85 - Deterministic Entropy

Adyen card client side encryption

Dart library for interacting with Duniter v2s blockchains. Provides wallet management, transaction signing, Squid GraphQL requests, and more

The Affinidi TDK Vault package provides libraries and tools for embedding Affinidi Vault into your existing Dart applications.

The first native Flutter/Dart SDK for the XRP Ledger (XRPL). Pure Dart, no platform channels. Payments, DEX, tokenization and account security.

BLAKE3 hashing for Dart over native FFI: 22x the throughput of the pure-Dart path on bulk data. One-shot, streaming, keyed (MAC), key derivation. C compiled at build.

The Affinidi TDK - Vault Data Manager package provides the interface to interact with Afinidi's Vault Data Manager service.

Interface of the ERC20 standard as defined in the EIP-20 Token Standard.

HuggingFace tokenizers for Dart over FFI. Load any tokenizer.json and get byte-exact BPE, WordPiece, and Unigram encoding, backed by the Rust crate.

Xml digital signature library for Dart. For signing and verifying XML documents.

VCs for ZKPs — Dart. Native Poseidon/EdDSA via prebuilt Rust binaries (macOS, iOS, Android, Linux, Windows). App developers do not need Rust installed.

A Flutter companion package for Vault that simplifies integration of secure storage capabilities in Flutter applications.

Secure, Hub-centric remote shell platform written in pure Dart. Clients connect to a Hub by node identity (not host:port); the Hub authenticates, authorizes and brokers encrypted sessions to Nodes over WebSocket-on-TLS. Ships Hub, Node, Client and CLI implementations behind first-class Dart APIs.

Stable core primitives for dart_ipfs (CID, multihash, multibase, block, codecs, crypto).

flutter_anti_tamper es un plugin de seguridad para Flutter que detecta manipulaciones en la aplicación, incluyendo root, Xposed, Frida y jailbreak, permitiendo tomar medidas preventivas como el cierre automático de la app.

A Dart library for encrypting and decrypting messages using the Fernet scheme.

The Dart implementation of the BIP32-Ed25519 the deterministic key generation solution for the Ed25519 curve.

Generate a cryptographically random passphrase from a given in-memory word list.

A collection of utility functions for cryptocurrencies.

A dart plugin implementing CBOR Object Signing and Encryption (RFC 9052, RFC 9053).

This package helps to encryption and decryption with or without secret key and JWT decode.

Common package for Affinidi TDK with Vault utilities to generate claim and share links

Flutter integration for Bella Baxter secret management. Provides FlutterSecureSecretCache backed by flutter_secure_storage for encrypted on-device secret caching.

A Dart SDK for the Scallop lending protocol on Sui - market data, obligations, spools, lending/borrowing actions, and naming.

Cryptography package for Affinidi TDK that provides cryptographic functionalities for secure token management, encryption and decryption.

A new Flutter plugin. Added AES Encription, Added QR Code Scanner, File & DB Sync for Android & IOS, Internet Connectivity check for both Android & IOS.

Cryptography utility library for AES encryption and Pbkdf2 hashing algorithms.

Java, Android, iOS, macOS, get the same result by DES encryption and decryption.

A flutter universal blockchain signer protocol for third-party library to enable Remote signing and third part wallet provider

A Dart library implementing cryptographic algorithms and primitives, modeled on the BouncyCastle library.

An implementation of the HMAC-based One-time Password (HOTP).

A Dart package for security-related functionalities. Vaden is a Backend Framework Using Dart.

flutter_tamper_detector is a Flutter security plugin that detects rooting, hooking tools like Frida and Xposed, or emulators, allowing you to block execution or exit the app.

A Dart SDK for sending and receiving emails over the Nostr protocol using NIP-59 gift-wrapped messages.

An embedded authorization token format, based off Google's macaroons.

Easily sign, create, and send all types of XRP transactions using the xrpl_dart package. Manage your XRP Ledger transactions securely and with ease.

A blockchain wallet address validator for multiple networks (CORE, EVM, Bitcoin, Solana, Cardano). Validates formats and checksums.

Dart PG (Dart Privacy Guard) - The OpenPGP implementation in Dart language.

Engage seamlessly with a Cosmos SDK-based network (cosmos hub, osmosis, thor, kujira and etc ... ), enabling the creation, signing, and transmission of transactions. (Beta version)

Flutter SDK for Fula decentralized storage with client-side encryption, metadata privacy, and secure sharing.

Flutter plugin for handling X509 certificates and key pairs from native platform key stores.

A straight forward implementation of base58check extending upon base58.

ERC-1271 and ERC-7739 compatible signature management for passkeys, local keys, and platform keys.

Dart Library for interacting with the Bitcoin network. This library is especially well-suited for use in developing Flutter applications.

ApexTeam Flutter Plugin - A simple flutter plugin for ApexTeam fellas which supports http request management, request encryption, request cancellation, ... .

A library for encrypt and decrypt string , very light & simple and fast.

Pure Dart library for elliptic curve research and practical application. EdDSA, Ed448, Ed521.

Dart FFI bindings for liboqs — high-performance post-quantum cryptography (PQC) with ML-KEM, ML-DSA, Falcon for key encapsulation and signatures.

LZMA compression library written in pure dart. Use this library to compress and decompress using the LZMA algorithm.

RASP plugin for Flutter. Detect root, jailbreak, emulators, debuggers, hooks, repackaging, VPN, SSL pinning, and more.

AES with PKCS7 padding encryption with simple encrypt/decrypt functions.

Easily create digest hex for files

A dart DefiChain library for Flutter. BIP32, BIP39, P2PKH integration.

Chinese national encryption algorithm SM2, SM3, SM4. Can output hex string or hex List<int>.

MurmurHash v3 for Dart & Flutter platforms. Supports array and stream data sources, on native and browser environments.

Biometric security for Flutter: Face ID, Touch ID & fingerprint authentication with hardware-backed encrypted storage and app-lock, on Android and iOS.

LexActivator API wrapper for Dart. Integrates Crypltex's services into the Dart language.

Generate obfuscated or encrypted Dart files from YAML/JSON configuration. Protect sensitive data in Flutter/Dart apps with multi-layer XOR obfuscation or AES-256 encryption.

encrypt and desencrypt compatible with CryptoJS

Complete NEAR Protocol SDK for Flutter/Dart. RPC client, wallet integration, NEAR Intents, and type-safe primitives.

Certificates, mutual TLS and a per-installation certificate authority for Dart, over a native library built on rustls-webpki, rcgen and aws-lc-rs.

A Blowfish ECB codec implementation in pure Dart.

Post-quantum cryptographic primitives for the Lattice Signal protocol. KEM (ML-KEM/Kyber), SIG (ML-DSA/Dilithium), PRF, and randomness extraction.

CRC calculator written in Dart supporting 50+ different CRC8, CRC16, CRC32 and CRC64 formulas.

Library implementing Bitcoins BIP32 (Hierarchical Deterministic key derivation) specification for Dart.

Dart CSP hash generator can hash your inline scripts and styles.

A comprehensive libp2p pubsub implementation for Dart, featuring GossipSub v1.1, FloodSub, and RandomSub protocols with message validation, peer scoring, and tracing support.

The coconut_lib is a development tool for mobile air gap Bitcoin wallets. It is written in Dart. Coconut Vault and Coconut Wallet were created using this library.

A reference implementation of the Mobile Wallet Adapter (Client) specification for Flutter.

This package is interfacing Cryptlib library in dart. It can also be used in flutter applications.

PBKDF2 password hashing utility. This plugin is a null-safety version of password_hash, you can use it if you need Flutter 2.x and above.

Umbrella package re-exporting all Solana Kit Dart SDK packages.

High-level cryptography for Dart. Fluent builder API with compile-time safety, sane defaults, and seamless cross-platform interoperability.

A dart implement of blake2b referenced from blacknet.

Fuse Wallet SDK now has a Dart implementation, making it even easier to integrate blockchain technology into your mobile apps.

Support library for Nitrite database to provide some additional features like encryption, import/export database etc.

age encryption implementation using Dart. age is a modern file encryption format with multiple pluggable recipients, and seekable streaming encryption.

A monero library

ntc_dcrypto is a module dart cryptography. Includes utility classes for encryption in the Dart programming.

Provides bindings for hashing and verifying with Argon2, the winner of the Password Hashing Competition.

A Flutter library for the Bitcoin Development Kit(bdk) (https://bitcoindevkit.org/)

High-performance Flutter plugin for AES-256 file encryption and decryption with native C/C++ implementation. Optimized for large files with low memory footprint.

Ios implementation of cs_monero_flutter_libs

A Dart library for parsing and building Ethereum URLs according to ERC-681. Supports ERC-20 transfers, ENS names, and chain IDs.

Implementation of the borsh serialization scheme

Android x86_64 bins for cs_monero_flutter_libs

Dart implementation of EIP-712 (Ethereum typed structured data hashing and signing) that enables type-safe signing of structured data with Ethereum wallets.

WebAuthn passkey create/assert plus the PRF (hmac-secret) extension for Flutter — derive a stable per-credential secret from a synced passkey on iOS and Android. The PRF API the common passkey plugins don't expose.

Secure-storage persistence backend for the Toggly Flutter SDK (feature_flags_toggly), enabling offline feature flag, variant, and JWKS caching via flutter_secure_storage.

Implementation of PBKDF2 key derivation function, this provides tools for password hashing based on RFC 2898

SD-JWT VC + OpenID4VCI/OpenID4VP protocol library for Dart wallets (holder role). Key- and HTTP-agnostic, pure logic, fully testable without hardware.

Library implementing Bitcoins BIP350 (Bech32m encoding) specification in a Flutter friendly fashion.

A Flutter plugin for password-protecting PDFs with 256-bit encryption. Add a password for encryption, permissions management and decrypting a PDF

Fintech-grade secret management for Flutter/Dart. AES-256-GCM encryption in generated code, SecureString type, build-time validation, and runtime derived keys.

A straight-forward, modular library for Peercoin and other Satoshi-based UTXO blockchains

Kaalka encryption algorithm for Dart. Application-ready time protocol: envelope, seal, replay protection, file chunking, public API. Pure Kaalka time-based logic, no external crypto. Cross-language compatible with Python and JavaScript.

AES and RSA encryption/decryption package for Flutter with secure key storage and cross-platform support including web.

AES-256-GCM symmetric encryption functions that allow to encrypt/decrypt package

Enterprise SSL/TLS Certificate & SPKI Public Key Pinning client for Flutter with OTA pin rotation, security audit logging, and MITM protection.

Flutter plugin for Colibri Stateless with bundled native binaries (Android, iOS, macOS, Linux). Proof generation and verification for Ethereum RPC.

Package for decoding Json Web Token (JWT), and selecting specific claims.

A plugin to make RSA encryption simple, right now it just only work on Android and ios.

A package for encypt credit cards in the pagseguro model, without any sdk or js compilation

A comprehensive library of high-level, cryptographic APIs. This library supports hashing, password hashing, two-way encryption, MAC authentication, and key/IV generation.

The first native Flutter/Dart SDK for the Avalanche network. Pure Dart, no platform channels. Covers C-Chain EVM, Data API (Glacier), P-Chain staking, and X-Chain native assets.

Dart FFI bindings for liboqs — high-performance post-quantum cryptography (PQC) with ML-KEM, ML-DSA, Falcon, SLH-DSA for key encapsulation and signatures.

A Dart package that provides functionalities to enhance the security of Dart applications; integration of multiple cybersecurity practices to secure user interactions.

A Dart implementation of permissionless.js for ERC-4337 smart accounts. Supports Safe, Simple, Kernel, and Etherspot accounts with bundler and paymaster clients.

Tamper-proof network time for Flutter. Anchored to hardware monotonic clocks with optional NTS (RFC 8915) to prevent system-time manipulation and network-level spoofing.

Blowfish encryption algorithm implementation in Dart with both ECB and CBC modes.

Elliptic curve cryptography functions in Dart. Private Key, Public Key, Signature, AES, Encryption, Decryption

A Dart SDK for fetching Pyth price updates from Hermes and building Sui transactions that verify Wormhole VAAs and update or create Pyth price feeds on-chain.

fexr-flutter is a lite wallet for Rubix Blockchain Protocol that helps to Connect your on-chain connectors to authenticate or sign third party accounts which are integrated with Rubix Blockchain Platform and uses Fexr APIs. Strict permission requirements built in Fexr apps will protect the access to your data also while allowing seamless integration.

Super-fast AES-256 file encryption for Flutter with chunk-based processing for large files.

With this package your app can act as a bunker and will be able to sign events from others Nostr apps.

A comprehensive, composable and versatile Dart/Flutter library for TON blockchain

Flutter screens and secure local services for creating and restoring self-custodial Solana wallets.

Pure Dart implementation of RSAES-OAEP (PKCS#1 v2.2)

ECIES encryption for dart

Unofficial PASETO implementation for Dart

A Flutter plugin exposing the CIP-30 and CIP-95 APIs. Allows to communicate with the Cardano Wallet Extension via js_interop integration.

A flutter bcrypt hashing plugin delegating to android &#x2F; ios native implementations.

A dart Bitcoin library for Flutter. BIP32, BIP39, P2PKH integration.

Pure-Dart post-quantum and classical hybrid crypto for Dart, Flutter, and Serverpod: ML-KEM|ML-DSA|SLH-DSA + X25519|Ed25519|ECDSA-P256 + AEAD (AES-GCM-256/Chacha20-Poly1305) + HKDF envelopes, streaming, multi-recipient encryption,decryption, FIPS Mode, signing, and a CLI.

Pure Dart library allowing you to easily create an HD Wallet and create, sign and send Cosmos-SDK transactions.

A dart package for interacting with the Kadena blockchain.

A Flutter library for fast ChaCha20-Poly1305 encryption, powered by Rust

Подписание файлов и сообщений с помощью Crypto Pro

A robust security wrapper for Flutter applications implementing Runtime Application Self-Protection (RASP), SSL Pinning, and Anti-Proxy mechanisms.

Dart client library for Ant Investor Audit Service - Tamper-proof audit trail with hash chaining and digital signatures

A flutter plugin, a library dedicated to aes_ecb_pkcs5 encryption and decryption, it has high performance and a simple API, small size and stable operation;

Flutter security plugin with root/jailbreak and emulator checks, screen capture protection, tamper detection, runtime protection, certificate pinning, and encrypted storage.

A helper library for storing application secrets in an encrypted file using the master secret provided by the XDG Desktop Portal Secret API.

A Flutter library for fast ChaCha20-Poly1305 encryption, powered by Rust

Dart implementation of the Dilithium signature scheme, which supports all 3 security levels (2, 3, 5).

Ton Dart streamlines transaction management and crypto ops in the Ton network. It supports Wallet Contract, Highload Wallet, and Jetton contracts.

SSL Pinning plugin for HTTP requests (Validation by SHA-1 or SHA-256).

Versioned Flutter key-value storage with authenticated encryption and change streams.

A flutter plugin, a library dedicated to aes_ecb_pkcs5 encryption and decryption, it has high performance and a simple API, small size and stable operation;

Dart package providing serialization/deserialization for common structures for Cardano blockchain.

A dart plugin for Uniform Resources(URs) decode/encode. URs are URI-encoded CBOR structures developed by Blockchain Commons.

Secure credential storage for Flutter using Android Keystore (AES-256-GCM) and iOS Keychain.

Visible & invisible watermarking for Flutter. Overlay text deters screenshots; forensic LSB steganography for tracing.

Official Flutter SDK for Voyant APIs - NSFW image detection, text analysis, and email services with secure HMAC authentication.

Web platform implementation of catalyst_cardano. Allows to communicate with the Cardano Wallet Extension via js_interop integration.

Cross-platform file and data storage for Dart and Flutter. Save, read, stream, and cache with one API on every platform — auto-cleanup, encryption, custom backends.

A common platform interface for the catalyst_cardano plugin.

Pure Dart utilities for transaction intent challenges, operation terms hashing, optional liveness-aware summaries, and audit-friendly signed assertions.

Cross-platform file and data storage for Flutter, zero setup — files land in the right folder on Android, iOS, macOS, Windows, Linux, and web. Caching, auto-cleanup, encryption.

A Dart package for generating and verifying HOTP and TOTP one-time passwords using RFC 4226 and RFC 6238.

Native Flutter file and string hashing powered by Zig, with SHA, MD5, HMAC, BLAKE3, XXH3, cancellation, mmap, and Android content:// support.

An Ethereum RLP (Recursive Length Prefix) encoding library for Dart.

Dart bindings for Colibri Stateless via FFI (proof generation and verification for Ethereum RPC).

A comprehensive security plugin for Flutter that detects Root/Jailbreak, VPN, Screen Recording, Mirroring, Casting, Developer Mode, and Emulators.

Spec-aligned did:webvh v1.0 for Dart: create, resolve, update, migrate, deactivate, and parallel did:web publishing. A faithful, idiomatic port of didwebvh-java.

rsa_cipher is a powerful and easy-to-use package for RSA encryption and decryption in Dart.

Protect encrypts/decrypt your excel files with password.

flutter实现国密SM2、SM3、SM4算法

Json based key-value storage with AES encryption support. Supported data types are `int`, `double`, `bool`, `String` and `Writable object`.

Dart CLI tool and library for text obfuscation and deobfuscation using custom mapping, Base64, ROT13, XOR, and string reversal.

Securely is a flutter plugin for Runtime Application Self-Protection (RASP).

Post-quantum cryptography in Flutter, backed by Rust FFI

A Dart SDK for the Hyperliquid DEX — REST API, WebSocket subscriptions, EIP-712 signing, and order management.

Seald SDK for Flutter: simple end-to-end encryption for your app

Dart/Flutter SDK for the SafHandle name service on Safrochain — resolve wallet addresses by name and register handles on-chain, mirroring the contract's validation.

Secure, encrypted on-device crash log storage with export/import and duplicate detection. Drop-in Flutter package.

Bmoni Embedded SDK for Flutter — Ethereum wallet provisioning and signing backed by Android Keystore / iOS Secure Enclave.

A Flutter plugin for XMTP decentralized messaging. Supports DMs, group chats, content codecs, consent management, and real-time streaming across Android, iOS, Windows, and Web.

A Flutter plugin that provides device and platform-related security features.

A simplified cryptographic library by Meeco - encrypt and decrypt as well as sign and verify data.

A dart Bitcoin library for Flutter. BIP32, BIP39, P2PKH integration.

Production-grade multi-layer app security - SSL Pinning, Anti-Debug, Code Obfuscation, Play Integrity (Android), App Attest (iOS), Root/Jailbreak detection, and Native C protection layer.

A library for token management (JWT/JWE) and validation.

A Package that provides you tools to make your flutter apps more secure

The Official Implementation of the Sonr Motor Node in Flutter. This package provides methods for Authentication, Data Management, and Wallet interactions for the Sonr Network.

Targeting Flutter apps, the Cardano Wallet SDK is a high-level Dart library for managing cryptocurrency accounts & executing transactions on the blockchain.

Dart implementation of ABDM Fidelius encryption (ECDH + HKDF + AES-256-GCM) for India's health data exchange.

Encrypt and decrypt data use secp256k1, This is the High level API build amount pointycastle, specify Elliptic curve to secp256k1 can simplify the api.

A powerfull plugin to encrypt and decrypt api responses and requests

Local-first sync engine for Flutter with offline support, delta sync, encryption, custom conflict resolvers, and real-time synchronization.

Natively supports Fully Homomorphic Encryption operations on sensitive data without revealing it. Supports Key Derivation, Encryption, Decryption, and Mathematical operations.

The Beacon Flutter Plugin provides Flutter developers with tools useful for setting up communication between native wallets supporting Tezos and dApps that implement beacon-sdk.

Flutter plugin to read PKCS#12 (.pfx/.p12) certificate fields and sign data using the embedded private key. Supports Android and iOS.

Chia Crypto Utils repository provides an object model for working with Chia primitives serving as a basis for a Chia client.

crypt_signature

CVSS v2.0, v3.0, and v3.1 score calculation and parsing for Dart

Secure storage with optional biometric protection for Android, iOS, and macOS. Linux, Windows, and web fall back to unauthenticated storage.

Cardinal SDK is a multiplatform SDK for the iCure platform.

Effortlessly integrate Easypaisa into your app with our Flutter package. Simplify payments & ensure secure transactions using RSA Encryption for user data protection.

End-to-end encrypted, on-chain (Arweave/Irys) chat for SeekerPay .skr identities.

Dart ffi bindings to the tinydtls library. Provides wrappers for both a DTLS client and server.

A comprehensive Flutter security module providing multiple layers of protection against common mobile app attacks including root/jailbreak detection, emulator detection, tampering detection, SSL pinning, and screenshot prevention.

A Flutter package for generating secure, auto-regenerating QR codes with encryption, digital signatures, and automatic expiration management.

A pure-Dart SDK for the Aptos blockchain: accounts, keys, transactions, keyless, and indexer queries. Works on Dart VM, Flutter, and the web.

Account Abstraction smart wallet client for Alchemy, only supports usage with gas manager

Advanced security detection system for Flutter applications focused on Android and iOS. Detects Frida, Root/Jailbreak, Emulator, and Debugger threats with high precision.

Simple XOR symmetric encryption/decryption cipher with or without a secret key

dart_web3_core - a web3 library for dart for interaction with ethereum nodes using HTTP or WebSocket. Supports custom credentials providers like WalletConnect and Metamask.

A dart/flutter library with language bindings for rust library [lwk](https://github.com/Blockstream/lwk) - Liquid Wallet Kit.

A reusable IoT security layer for Flutter apps. Provides device authentication, health data validation, firmware verification, and secure storage.

Age Encryption Yubikey PGP plugin

Dart implementation of Solana's Mobile Wallet Adapter Specification.

A package providing bijective UUID mapping for secure and efficienct lookups.

Flutter plugin for SQLCipher, an extension to SQLite that provides transparent AES encryption of database files.

A comprehensive Dart wrapper for the Binance API, covering all major endpoints including Spot, Futures, Margin, and more.

This plugin creates a secure native TLS connection to execute HTTP requests with certificate pinning.

Flutter RASP plugin for Android & iOS: detects rooted/jailbroken devices, Frida/Xposed hooking, emulators, debuggers, and app tampering with NDK-level detection.

A pure Dart Solana client library for keys, transactions, programs, and JSON-RPC/WebSocket access.

Dart library to connect to Ethereum clients. Send transactions and interact with smart contracts!

A pure Dart solution for Monero cryptography, supporting RingCT transactions, Bulletproof Plus, multi-sig accounts, account management, and full daemon/wallet RPC support.

Flutter FFI plugin for Ed25519 digital signatures and X25519 Diffie-Hellman key exchange. High-performance Curve25519 cryptography via native C.

Targeting Flutter apps, the Cardano Wallet SDK is a high-level Dart library for parsing and signing transactions.

Secure Flutter plugin for storing sensitive data with hardware-backed encryption (iOS Secure Enclave, Android Keystore).

End to End encryption (RSA e2ee) for multiple languages (cross platform) and Value password protection (DES encryption) specially for local file encryption!

Yet another RC4 cryptor that encodes/decodes bytes and UTF8 strings.

Low-level library for the NANO cryptocurrency. Supports signatures, key generation, and more. Uses C functions for ed25519 and blake2b.

LocalStorage for Flutter with encryption like SharedPreferences

A universal Dart client for Solana programs — Anchor, Quasar, and Pinocchio. Provides dynamic IDL-based program interactions, zero-copy account decoding, multi-framework discriminator support, and seamless integration with the Solana ecosystem.

FileCryptor is for encryption and decryption files. (PDF, MP3, MP4, PNG, ...)

Encrypt values from `.secure_env` into Rust ciphertext at build time and read them at runtime via `dart:ffi` (AES-256-GCM). Keeps plaintext secrets out of Dart sources and JNI / Apple native binaries shipped with your app.

Pure Dart library allowing you to easily integrate with the Commercio.network blockchain

A Flutter plugin for Windows and macOS desktop applications that enables adding X.509 certificates to the local certificate store with trust settings support.

A feasible caching library for Flutter. Save any encrypted string.

A Dart package for generating and validating bearer tokens using HMAC-SHA256 encryption.

Dart native client library for etebase and etesync.

Encrypt and Decrypt strings in flutter with pure Dart code.

A fast and secure storage library for Flutter: store key and iv in FlutterSecureStorage and individual iv for every record in SQLite

Eliminates the Dart-Native "Copy Tax" using SIMD-aligned C++ shared memory, Pointer.asTypedList() bridging, and an atomic spinlock. Zero serialization. Zero GC impact.

Advanced End-to-End Encryption (E2EE) Service

Production-ready native secret storage for Flutter. Multi-layer encryption, compiler optimization protection, configurable security checks, and function obfuscation. No plaintext in binary!

Dart literals obfuscator to defend against static reverse engineering.

High performance persistant memory based key-value storage with AES256 encryption. Support all features and can be used as drop-in of Dart Map<K,V>.

The AES-GCM Flutter Encryption Plugin secures Flutter apps using the AES-GCM algorithm, known for its strong security and efficiency.

A Flutter plugin for generating TON blockchain wallets, mnemonics, and fetching wallet assets.

Flutter plugin for steganography encoding and decoding files within an image using stegify API.

This package helps to encryption and decryption and hash with verification.

Dart Package supporting Verifiable Credentials, Dids, a wallet for them, Didcomm and IWCE

Flutter certificate pining for Dio package

A Flutter plugin that support secp256r1 by Keystore on Android and Secure Enclave on iOS.

FNV hash algorithm for Dart language (see http://isthe.com/chongo/tech/comp/fnv/)

A Library that can produce Cryptographic hash or can encrypt and decrypt text with key.

Native iOS/macOS Flutter plugin for Tor using Tor.xcframework (iCepa) with obfs4/snowflake bridge support via IPtProxy

A FFI plugin package that implements xxHash, inspired by crypto.

Partial Dart implementation of COSE, RFC8152. It is used to validate European Digital Green Certificates.

An end to end encryption sdk for every developer. The sdk is focused on group encryption and supports child and connected groups.

A Dart library for IP address encryption and obfuscation.

sss256 is a library with utilities for encode\decode secret with Shamir`s Secret Sharing algo

AES Encryption & Decryption (AES-CBC-PKCS5Padding)

Lazysecret is a comprehensive Flutter implementation of the libsodium using secret_box library.

Adaptive arithmetic coding for efficient lossless compression of bytes in pure Dart.

Production-grade Flutter security SDK providing SSL pinning, root/jailbreak detection, anti-tampering, Play Integrity, and App Attest support.

A Flutter SDK for authentication with RSA encryption, designed for secure API requests and phone number encryption.

Rust backend support crypto flutter library, much faster than Dart-implementation library, light-weight library. Some crypto support hardware accelerate.

A flutter implementation of Triple DES (3DES) algorithm. This implementation relies on flutter method channel

End-to-End-encryption Suite with curve M-511 for ECDH and ChaCha20 for files, strings and maps.

A plugin for using native Argon2/AES in Android and IOS

AES block cipher algorithm CTR - Counter Mode, Supports all key sizes (128-bit, 192-bit and 256-bit) for Flutter (Android, iOS)

Pure dart library to easily implement Noise Protocol Framework protocols.

Dart encryption library for encrypting/decrypting files, plain text and binary data in AES Crypt file format.

This package is an implementation of xor cipher for encrypting strings in flutter.

A Dio interceptor that encrypts requests and decrypts responses using AES encryption, ensuring secure data transmission.

A package to generate fake Android device IDs, in the same format as Android's Settings.Secure.ANDROID_ID.

A set of high-level APIs over PointyCastle to hash and verify passwords securely.

Dart FFI bindings for the Chromaprint audio fingerprinting library (AcoustID).

Aes dart

Protect secrets with XOR obfuscation

AES-GCM encryption and decryption utility with PBKDF2 key derivation support for Flutter apps.

A set of high-level APIs over PointyCastle to hash and verify passwords securely.

End-to-end encrypted group messaging for Flutter, built on the Marmot protocol (MLS over Nostr) via MDK.

Your data remains secure as it is seamlessly embedded into the image. Even when viewing the image, no one will suspect that it contains hidden information.

A flutter plugin project for encryption and decrytion which support both ios and android.

Provides hash functionalities to encrypt AdHocIdentities as part of the ad_hoc_ident framework.

A robust Flutter package for validating secure QR codes with battle-tested encryption, digital signatures, and customizable business rules. Perfect for access control, ticketing, and secure document verification.

The Flutter AES256Cipher convert module, String text(Sentence) easy Encrypted/Decrypted

Easily sign, create, and send all types of XRP transactions using the xrpl_dart package. Manage your XRP Ledger transactions securely and with ease.

A flutter package that aim to take care of your mobile app security side.

A high-performance Dart FFI package for decoding BlurHash, leveraging Rust for faster processing.

Certificate pinning, HMAC request signing, AES-256 payload encryption, and mTLS for any_link. Pure Dart.

A Flutter package project , it is use for HD wallet . Support BTC, ETH, ERC20-USDT transfer signature.

ChaCha20-Poly1305 encryption/decryption for Flutter. Encrypt binary and text-like data with ease. Native implementations make sure it has the fastest performance.

Triple DES and DES block cipher implementation ported from CryptoJS

This is a Dart package that provides utilities for securely encrypting, decrypting, compressing, and decompressing string data using AES encryption and gzip compression

Dart package to veryify NXP tag originality against known or provided list of public keys

A plugin for generating a hash based on Argon2 algorithm in Android / iOS platform.

A utility package to generate MD5 hashes and other helpers for Flutter apps.

Generates passwords which can contain digits, lower case letters, upper case letters and punctuations.

Secure cross-platform vault for Flutter using native storage (iOS Keychain, Android Keystore, Windows Credential Manager). Supports iCloud sync, Auto Backup, and TPM.

Advanced root detection and jailbreak detection Flutter plugin with comprehensive security checks.

A Flutter wrapper for the dart_rust_encrypt package.

Automated cache management with encryption, substitution/invalidation policies and efficient size handling.

A gunDB port P2P encrypted Communication between multiple users.

The package helps in to encrypt and decrypt using AES-128 algorithm cbc PBKDF2WithHmacSHA1 AES/CBC/PKCS5Padding

A complete Flutter package for End-to-End Encryption (E2EE), secure file encryption, and key management using libsodium.

A flutter plugin, a library dedicated to aes_ecb_pkcs5 encryption and decryption, it has high performance and a simple API, small size and stable operation;

Accept 10+ cryptocurrencies from customers anywhere in the world using FluidCoins.

library for easy use encrypt & decrypt features, generate bytes & string

A high-performance, secure encryption library for Dart, leveraging the powerful **ChaCha20-Poly1305** algorithm.

Library implementing Bitcoins BIP173 (Bech32 encoding) specification in a Flutter friendly fashion.

secure_enclave is implementation Apple Secure Enclave for Flutter

A plugin to check Certificate Transparency using OkHttp and CTLogger.

A lightweight pure-Dart SQL database engine for Flutter with AES-256 encryption, migrations, spatial indexing, and a built-in admin UI for mobile and desktop apps.

A pure Dart implementation of Indian Post DigiPin encoding and decoding.

A Flutter plugin to host Tor Onion Hidden Services and proxy traffic through Tor.

Easy encryption is a package which makes encrypting data easier. Using this package you can encrypt text data in a single line.

A package that embeds a message (text or image) into a (cover image/text) using the least significant bit (LSB) & Zero-width techniques with minimal alteration to the original cover image or text.

A Dart port of the Cryptum encryption library providing hybrid RSA/AES-GCM encryption with secure session key handling and dynamic format negotiation.

A Flutter plugin to scan, connect & sign transactions using your Ledger Nano devices

A simple, flexible Dart package for encrypting and decrypting strings using a customizable substitution cypher. Supports custom sequences, variable steps, and works with any UTF-8 string.

A Future-based library for interacting with the Decentrifi Defi Hub. Access data on ENS, lending, borrowing, vaults, farming and staking on multiple chains.

A simple Dart library providing basic string encryption and decryption using XOR and Caesar cipher techniques. Ideal for lightweight data obfuscation.

A Dart package for making HTTP requests with cryptographic signatures.

A cryptographically secure nonce generator for Dart. Generate random nonces as hex, bytes, base64, or alphanumeric strings using cryptographically secure random number generation.

a dart libary that tries to implement crypto-js like functionality.

A native Rust cryptographic SDK for Flutter via FFI. AES-256-GCM, ChaCha20-Poly1305, BLAKE3, SHA-3, Argon2id, HKDF, streaming encryption, and encrypted virtual file system.

Cross-platform string encryption using common best-practices.

Ethereum library and wallet implementation in Dart.

Fixed implementation of high-level bindings to the Z3 SMT solver.

E2E-encrypted JSON-RPC 2.0 communication over Nostr NIP-59 Gift Wrap

Toronet is a Dart/Flutter SDK providing seamless integration with blockchain, wallet, payments, KYC, exchange, and balance APIs. It enables developers to build secure, scalable, and feature-rich financial applications with ease.

A comprehensive Flutter security package providing enterprise-grade protection with real-time threat detection, AI-assisted monitoring, root/jailbreak detection, secure storage, SSL pinning, and screen capture protection. Features include device security checks, anti-reverse engineering, behavior monitoring, and configurable security modes.

The largest Dart algorithm library—soon global—packed with 300+ algorithms spanning machine learning, networking, encryption, blockchain, and beyond.

A dart implement of ed25519 referenced from python and java.

A Flutter plugin for interacting with the RGB protocol, enabling asset management and transfers on Bitcoin Network.

SDK for encryption and validation of credit card data for integration with the Juno/BoletoBancário payment API.

A Dart library which supports hiding data in images using LSB steganography.

The `AESCBCCipher` is a singleton class that provides AES encryption and decryption functionality using the `encrypt` package. It is used to encrypt and decrypt data using the AES (Advanced Encryption Standard) algorithm in CBC (Cipher Block Chaining) mode.

library for use RSA with support for ohos.

A comprehensive Flutter utility library providing 100+ essential tools including text generators, calculators, converters, image processors, encoders/decoders, network tools, validators, and much more!

A Dart library for concealing and revealing data in various file formats