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AbandonedArchivedLibrary

psychob/crypto-currency-php
===========================

Crypto Currency PHP library ported to packagist

1.0(7y ago)161[1 PRs](https://github.com/psychob/CryptoCurrencyPHP/pulls)MPL-2.0PHPPHP ^7.1

Since Sep 13Pushed 7y ago1 watchersCompare

[ Source](https://github.com/psychob/CryptoCurrencyPHP)[ Packagist](https://packagist.org/packages/psychob/crypto-currency-php)[ RSS](/packages/psychob-crypto-currency-php/feed)WikiDiscussions master Synced 2mo ago

READMEChangelogDependencies (1)Versions (2)Used By (0)

Crypto Currency for PHP
=======================

[](#crypto-currency-for-php)

A collection of common utilities and libraries in PHP for use with Bitcoin and Zetacoin compatable crypto currencies ustilizing the secp256k1 ECDSA curve. Full documentation and extended examples are avialable at:

The code may be messy and all over the place, but I'm still pulling things together as I merge this code base with items from the PHPECC codebase. The current features include:

- Private Key Generation and Loading
- Public Address Print Out
- Message Signing and Verification
- Address Generation and Validation
- Address compression, de-compression, encoding, and decoding.
- Supports Arbitrary Address Prefixes

Currently, the following items are working

- Base58.class.php
- SECp256k1.class.php
- PointMathGMP.class.php
- AddressValidation.class.php
- AddressCodec.class.php
- PrivateKey.class.php
- Signature.class.php
- Wallet.class.php

Planned features include:

- Transaction Generation
- Transaction Signing

No ETA.

Requirements
------------

[](#requirements)

The current implementation requires the php5-gmp extension. Future version will automaticly detect and switch between GMP and BCMATH

Usage
-----

[](#usage)

### AddressCodec

[](#addresscodec)

The AddressCodec class provides a simple interface for common Zetacoin/Bitcoin (and compatable) address functions. Load the following classes in your PHP code:

```
include 'Base58.class.php';
include 'PointMathGMP.class.php';
include 'AddressCodec.class.php';
```

The most basic example, get the X and Y coordnates of a DER Encoded public key (old format)

```
$derPublicKey = '04a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd5b8dec5235a0fa8722476c7709c02559e3aa73aa03918ba2d492eea75abea235';

$point = AddressCodec::Point($derPublicKey);

echo $point['x'];
echo $point['y'];
```

That will return an array with both X and Y:

```
X = a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd
Y = 5b8dec5235a0fa8722476c7709c02559e3aa73aa03918ba2d492eea75abea235

```

The more usefull method is with the new compressed public keys used by modern crypto currencies:

```
$compressedPublicKey = '03a34b99f22c790c4e36b2b3c2c35a36db06226e41c692fc82b8b56ac1c540c5bd';

$point = AddressCodec::Decompress($compressedPublicKey);

echo $point['x'];
echo $point['y'];
```

Works the other way around too:

```
$compressedPublicKey = AddressCodec::Compress($point);
$derPublicKey = AddressCodec::Hex($point);
```

On to the more usefull items, Encode a public key into a Crypto Currency address. First Hash your public key then Encode it.

```
$hash = AddressCodec::Hash($compressedPublicKey);
$address = AddressCodec::Encode($hash);

echo $address;
```

Gives you:

```
Address = 1F3sAm6ZtwLAUnj7d38pGFxtP3RVEvtsbV

```

Specify your own prefix (in HEX):

```
$address = AddressCodec::Encode($hash, "50");
```

Gives you:

```
Address = ZS67wSwchNQFuTt3abnK4HjpjQ2x79YZed

```

### Wallet

[](#wallet)

The Wallet class provides a simple interface to common Zetacoin/Bitcoin (and compatable) functions. At the moment, the wallet can load a private key, display it's associated receive address, and of course, message signing/verification!

To use this, load the following classes in your PHP code:

```
include 'Base58.class.php';
include 'SECp256k1.class.php';
include 'PointMathGMP.class.php';
include 'AddressCodec.class.php';
include 'PrivateKey.class.php';
include 'Wallet.class.php';
include 'Signature.class.php';
```

First you must generate or specify a PrivateKey:

```
$private = new PrivateKey('1234567890abcdefNOTAREALKEY23456789012345678789');
# Or
$private = new PrivateKey();
```

Load this PrivateKey into the Wallet. Optionally set the network prefix (aka address version/prefix) as a HEX, and network name.

```
$wallet = new Wallet($private);
# Setting "Z" for "Zetacoin" Address version is 80 in decimal. '50' in HEX.
$wallet->setNetworkPrefix("50");
$wallet->setNetworkName("Zetacoin");
```

Print out your recieve address:

```
echo $wallet->getAddress();
```

Sign a message in pure PHP!!!

```
echo $message =  $wallet->signMessage("Test 1234");
```

Puts out something like:

```
-----BEGIN ZETACOIN SIGNED MESSAGE-----
Test 1234
-----BEGIN SIGNATURE-----
ZJFVhALJwWV1uz8m1YoXXyvNqFMu4h7A94
H7wVT/QJEd3xIonGorLsDxXHg8DE5byo9fcD5h/LHH02KX7nFKjyvH7AE7PjioCQid4qKOjuMh430G37gKIupDc=
-----END ZETACOIN SIGNED MESSAGE-----

```

Verify a signed message using the Satoshi client's standard message signature format. A PrivateKey is not required when you only need to verify signed messsages.

```
$message = PHP_EOL;
$message .= "-----BEGIN ZETACOIN SIGNED MESSAGE-----" . PHP_EOL;
$message .= "Test 1234" . PHP_EOL;
$message .= "-----BEGIN SIGNATURE-----" . PHP_EOL;
$message .= "ZJFVhALJwWV1uz8m1YoXXyvNqFMu4h7A94" . PHP_EOL;
$message .= "H7wVT/QJEd3xIonGorLsDxXHg8DE5byo9fcD5h/LHH02KX7nFKjyvH7AE7PjioCQid4qKOjuMh430G37gKIupDc=" . PHP_EOL;
$message .= "-----END ZETACOIN SIGNED MESSAGE-----";

$wallet = new Wallet();
$wallet->setNetworkPrefix("50");
$wallet->setNetworkName("Zetacoin");

echo $wallet->checkSignatureForRawMessage($message) ? 'Verifies' : 'Fails';
```

*Note that the line endings are important since the parser is quite picky at the moment This will be fixed in a later release.*

**Yes, it's pure PHP!**

If you don't want to bother with line endings, you can feed the components in manually:

```
$message = "Test 1234";
$address = "ZJFVhALJwWV1uz8m1YoXXyvNqFMu4h7A94";
$signature = "H7wVT/QJEd3xIonGorLsDxXHg8DE5byo9fcD5h/LHH02KX7nFKjyvH7AE7PjioCQid4qKOjuMh430G37gKIupDc=";

$wallet = new Wallet();
$wallet->setNetworkPrefix("50");
$wallet->setNetworkName("Zetacoin");

echo $wallet->checkSignatureForMessage($address, $signature, $message) ? 'Verifies' : 'Fails';
```

If you find this usefull, please send me some

Bitcoin: 1B6eyXVRPxdEitW5vWrUnzzXUy6o38P9wN

Zetacoin: ZK6kdE5H5q7H6QRNRAuqLF6RrVD4cFbiNX

*The items in the repository may contain some derivative work based on Jan Moritz Lindemann, Matyas Danter, and Joey Hewitt*

###  Health Score

25

—

LowBetter than 37% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity7

Limited adoption so far

Community8

Small or concentrated contributor base

Maturity57

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Unknown

Total

1

Last Release

2797d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/196d7a06a111694db272e50fd2fb583cfdb71c5b46f6b7bb2b09e45f61ccc438?d=identicon)[psychob](/maintainers/psychob)

---

Top Contributors

[![tuaris](https://avatars.githubusercontent.com/u/5660265?v=4)](https://github.com/tuaris "tuaris (20 commits)")

###  Code Quality

TestsPHPUnit

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