guardaco / zcash-SPV

Zcash Grant SPV library (Sapling)

DEPRECATED

Please note that these applications are deprecated. Support has been suspended. Issues and pull-requests are no longer reviewed by our team. Commercial proposals for the development of such applications can be sent to [e-mail]

Zcash SPV library by Guarda

About

Example android app. Only t-addresses now available. Just import project in your IDE and build.

Installation

Add this folder in your project:

zcash-SPV/tree/master/app/src/main/java/com/gravilink/zcash

and delete:

zcash-SPV/blob/master/app/src/main/java/com/gravilink/zcash/TestActivity.java

Usage

ZCashWalletManager.java has folowing public methods:

• generateNewPrivateKey_taddr
• publicKeyFromPrivateKey_taddr
• getBalance_taddr
• createTransaction_taddr
• pushTransaction_taddr
• getTransactionHistory_taddr
• importWallet_taddr
• getTransactionCache

Before using generateNewPrivateKey_taddr BrainKeyDict must be initialized with BrainKeyDict.init().

Overwinter

Method createTransaction_taddr() has a field expiryHeight. From 0 to 499999999 (inclusive). By default is 0 (no limit). Or use constant EXPIRY_HEIGHT_NO_LIMIT.

Sapling

New v4 transparent transactions are supported.

Now the library supports only v4 transactions (https://github.com/zcash/zips/blob/master/zip-0243.rst#specification)

License

Library are licensed under the MIT License.

Enjoy! Guarda Team hopes you will like using our lib as much as we liked creating them.