Package com.codename1.crypto

package com.codename1.crypto

Crypto-currency support shared by the device and the server: UInt256 amounts, with keys in com.codename1.crypto.hd, chains in com.codename1.crypto.evm, com.codename1.crypto.bitcoin and com.codename1.crypto.solana, and the network clients in com.codename1.crypto.rpc and com.codename1.crypto.market.

Related Packages

Package	Description
com.codename1.crypto.bitcoin	Bitcoin: BitcoinAddress for every standard output type, Script, BitcoinTransaction with the legacy, BIP-143 and BIP-341 signature hashes, Taproot key tweaking, Psbt (BIP-174) and Wif keys.
com.codename1.crypto.encoding	Text and binary encodings used by blockchain and wallet code: hexadecimal, Base58 and Base58Check, Bech32 and Bech32m with SegWit addresses, and Ethereum's Recursive Length Prefix serialization.
com.codename1.crypto.evm	Ethereum and other EVM chains: EvmAddress with the EIP-55 checksum, EvmTransaction for legacy (EIP-155), access-list (EIP-2930) and dynamic-fee (EIP-1559) transactions, Abi encoding, PersonalSign (EIP-191), TypedData (EIP-712) and Erc20 token calls.
com.codename1.crypto.hd	Hierarchical deterministic keys: Mnemonic backup phrases (BIP-39), Bip32 derivation on secp256k1 with xprv/xpub serialization, Slip10 for Ed25519, and DerivationPath for the m/44'/60'/0'/0/0 notation.
com.codename1.crypto.market	Prices: the PriceFeed interface and its Quote, CoinGeckoFeed, the template-driven JsonPriceFeed for any JSON price API, and CachingPriceFeed.
com.codename1.crypto.rpc	Chain network clients: EvmRpc for Ethereum JSON-RPC, EsploraClient for the Bitcoin Esplora REST API and SolanaRpc for Solana JSON-RPC, all written against one RpcTransport.
com.codename1.crypto.solana	Solana: SolanaAddress with program-derived and associated token addresses, SolanaMessage in the legacy and v0 formats, SolanaTransaction signing, and instruction builders for the System, SPL Token, Associated Token, Compute Budget and Memo programs.
com.codename1.crypto.wallet	Wallets: the Signer interface that keeps private keys behind derivation paths, the in-memory SeedSigner, and the Wallet facade that answers addresses and signs EVM, Bitcoin and Solana transactions on the standard paths.

Classes

Class	Description
UInt256	An unsigned 256-bit integer: the width of every EVM quantity and wide enough for any Bitcoin or Solana amount.