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.

Dart port of ed25519 from Go Cryptography ed25519

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

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

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

Base58Check encoding using dart:convert interface

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

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

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

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

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

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

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

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

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

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

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

Fast and error resilient codecs. Currently supporting Binary(Base2), Hexadecimal(Base16), Base32, Base64, BigInt.

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

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

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

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

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

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

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

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

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

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

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

basic elliptic curves in pure dart

Cross-platform implementation of Web Cryptography APIs for Flutter.

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

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

A simple Dart library for asymmetric encryption and digital signatures

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

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

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

Dart implementation of Bitcoin BIP39 Mnemonic code for generating deterministic keys

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

Dart port of x25519 from Go Cryptography curve25519.

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

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

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

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

Lightweight implementation of JSON Web Tokens (JWT).

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

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

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

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.

Dart port of DropBox's zxcvbn library.

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

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

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

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

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

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

Package for at_protocol cryptographic and hashing operations

BIP-0032 like derivation for ed25519 curve

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

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

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

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

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

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

Annotation used to make a Dart object borsh serializable.

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

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

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

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

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

BIP340 (Schnorr) signature and verification.

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

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

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

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.

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.

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

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

MIRACL Trust Flutter Plugin

A set of cryptographic hashing functions implemented in pure Dart

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.

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

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

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

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

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

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

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.

Ethereum signature utility porting from JS

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

Serialize an ed25519 key into the openssh format

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

edwards25519, where security meets simplicity in cryptography!!

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

基于Dart语言实现的国密SM2、SM3、SM4算法。

Triple DES and DES block cipher implementation ported from CryptoJS

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

Provide Blake encryption support, dart implementation library

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

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

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

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

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

A sr25519 cryptography library in pure Dart

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

Converting BIP39 entropy to valid Substrate SecretKeys.

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

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

A tiny cup, a mighty punch - ristretto255!!

Strobe contains implementation of the Strobe protocol framework.

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

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

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

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

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

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

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

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

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

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

Pure-Dart cryptography package implementing symmetric ciphers (AES with multiple modes, ChaCha20, XChaCha20, Salsa20, XSalsa20, XOR) and their AEAD variants with Poly1305.

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

Substrate Keyring.

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

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

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

PBKDF2 password hashing utility

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.

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

MurmurHash v3 Implementation in Dart.

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

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

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).

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

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

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

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

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

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

Adyen card client side encryption

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

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

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

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

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

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

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

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

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

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

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

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

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

A collection of utility functions for cryptocurrencies.

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

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

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.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

A straight forward implementation of base58check extending upon base58.

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

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

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

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

A dart implement of blake2b referenced from blacknet.

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

encrypt and desencrypt compatible with CryptoJS

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

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

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.

Easily create digest hex for files

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

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

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

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

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

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

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)

A BIP32 with SLIP132 support for Dart/Flutter community.

A pure Dart implementation of BIP85 - Deterministic Entropy

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

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

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

A Blowfish ECB codec implementation in pure Dart.

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

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

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

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.

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

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

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

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

A dart package for interacting with the Kadena blockchain.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Pure Dart post-quantum cryptography library. Startss with ML-KEM (Kyber) & ML-DSA (Dilithium). NIST-compliant. Flutter & Web compatible.

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

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

Cryptography utility library for AES encryption and Pbkdf2 hashing algorithms.

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

Protect encrypts/decrypt your excel files with password.

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

ECIES encryption for dart

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

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.

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

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

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

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 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 common platform interface for the catalyst_cardano plugin.

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

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

Unofficial PASETO implementation for Dart

Подписание файлов и сообщений с помощью Crypto Pro

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

Post-quantum cryptography in Flutter, backed by Rust FFI

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;

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

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

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

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;

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

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

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

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

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

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

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

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

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

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

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.

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

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

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

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

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

secure_enclave is implementation Apple Secure Enclave for Flutter

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

Implementation of the borsh serialization scheme

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

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

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

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

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

Advanced End-to-End Encryption (E2EE) Service

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

Dart native client library for etebase and etesync.

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.

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

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

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

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

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

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

AES Encryption & Decryption (AES-CBC-PKCS5Padding)

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

Boxx is your ultimate key-value storage plugin with built-in encryption

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

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

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

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

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

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

Pure dart library to easily implement Noise Protocol Framework protocols.

A Dart package for making HTTP requests with cryptographic signatures.

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

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

Dart literals obfuscator to defend against static reverse engineering.

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

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

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

A powerfull plugin to encrypt and decrypt api responses and requests

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

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

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

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.

Dart implementation of Solana's Mobile Wallet Adapter Specification.

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

A Dart library for parsing and building Ethereum URLs according to ERC-681 and ERC-831. Supports ERC-20 transfers, ENS names, and chain IDs.

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

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

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

Triple DES and DES block cipher implementation ported from CryptoJS

A plugin to check Certificate Transparency using OkHttp and CTLogger.

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

Flutter certificate pining for Dio package

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

LocalStorage for Flutter with encryption like SharedPreferences

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.

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

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_web3_core - a web3 library for dart for interaction with ethereum nodes using HTTP or WebSocket. Supports custom credentials providers like WalletConnect and Metamask.

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

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

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

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

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.

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

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

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

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

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

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

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

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.

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

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.

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

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 Flutter wrapper for the dart_rust_encrypt package.

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

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

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

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

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