A simple Cryptography Implementation in Java for the ARK Blockchain.
License: MIT License
A simple Cryptography Implementation in Java for the Ark Blockchain.
Lead Maintainer: Joshua Noack
You can find installation instructions and detailed instructions on how to use this package at the dedicated documentation site.
If you discover a security vulnerability within this package, please send an e-mail to [email protected]. All security vulnerabilities will be promptly addressed.
This project exists thanks to all the people who contribute.
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Increase Test Coverage
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As discussed with @supaiku0 those packages should be moved from groovy to pure java to provide as much compatibility for java derivatives as possible without any middleman and sugar like groovy.
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https://github.com/ArkEcosystem/AIPs/blob/master/AIPS/aip-18.md
See https://github.com/ArkEcosystem/core/tree/master/packages/crypto/src for reference once Core 2.6 is released.
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Overall test coverage must be increased
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**Summary & Current Behaviour: **
The latest version of java-crypto caused the error:
Exception in thread "main" java.lang.NoSuchMethodError: java.nio.ByteBuffer.rewind()Ljava/nio/ByteBuffer; at org.arkecosystem.crypto.transactions.Serializer.serializeSignatures(Serializer.java:112) at org.arkecosystem.crypto.transactions.Serializer.serialize(Serializer.java:33) at org.arkecosystem.crypto.transactions.Serializer.serialize(Serializer.java:23) at org.arkecosystem.crypto.transactions.types.Transaction.sign(Transaction.java:48) at org.arkecosystem.crypto.transactions.builder.AbstractTransactionBuilder.sign(AbstractTransactionBuilder.java:59) at tech.qvanphong.arkcryptodemo.ArkTransaction.transfer(ArkTransaction.java:15) at tech.qvanphong.arkcryptodemo.Main.main(Main.java:11)
It happened when I use TransferBuilder sign() method, follow the trace, the codes that caused this problem from here
``
private byte[] serializeSignatures(boolean skipSignature, boolean skipSecondSignature) {
ByteBuffer buffer = ByteBuffer.allocate(144);
buffer.order(ByteOrder.LITTLE_ENDIAN);
if (!skipSignature && this.transaction.signature != null) {
buffer.put(Hex.decode(this.transaction.signature));
}
if (!skipSecondSignature && this.transaction.secondSignature != null) {
buffer.put(Hex.decode(this.transaction.secondSignature));
}
byte[] result = new byte[buffer.position()];
buffer.rewind(); 👈
buffer.get(result);
return result;
}
``
Expected Behavior
Should be normally, no error throws from ByteBuffer.
Possible Solution
gradle build fatJar, I tried to use these jars and everything is fine, no errors.Steps to Reproduce (for bugs)
org.arkecosystem.crypto from mavenTransaction transaction = new BuilderTransaction() ... .sign("passphrase");Context
I'm trying to create a simple Transaction object.
Your Environment
Describe the bug
It might not be a bug, rather I'm missing something. In this issue, I had trouble broadcasting the transaction which was built using the Java SDK. After a while, I tried to build it with the Javascript SDK and it got broadcasted just fine, so the issue is related to Java.
To Reproduce
The transaction is built using this function:
public String Transfer(String recipient, Integer amount, String vendor, String passphrase) throws Exception {
Transfer transfer = new Transfer()
.recipient(recipient)
.amount(amount)
.vendorField(vendor);
transfer.transaction.version = 1; //By default it creates with a 0;
transfer.sign(passphrase);
if(transfer.transaction.verify() != true) throw new Exception("Transaction failed to verify");
return transfer.transaction.toJson();
}
After which I tried to broadcast the resulted JSON using the javascript client. The transaction was accepted but never appeared on the blockchain.
Expected behavior
Expected the transaction to appear on the explorer, since it was accepted.
Also I expected the version to be not 0, so I had to manually set it to 1.
One other thing I noticed, the resulting JSON is a bit different comparing to the javascript result.
Java result:
{
"expiration":0,
"network":0,
"timestamp":2133190,
"type":0,
"version":1,
"amount":190000000,
"fee":10000000,
"asset":{
"signature":{
},
"votes":[
],
"delegate":{
},
"multisignature":{
"min":0,
"lifetime":0,
"keysgroup":[
]
}
},
"id":"3e3185498126a06fe4b5fafe33d250f4c8183bbe755c2ebbb1de4118313f9060",
"recipientId":"ATtYCbq1MdNYHEE7zA4YZ5K8DguXRVzaz2",
"senderPublicKey":"02bd76db59c27450900c4432f63863a7e7030d2b33b1bc622b47da106a8ee3e118",
"signature":"3045022100fc8dd18b8f30ea870dd5a29c63c15327e65ec1428b95be02b75878c43b23466802207f630ad22c15fd268d7c13a198c9e8c7a4f6d90da625414bb5d13ba727ed66fa",
"vendorField":"Return tx"
}
Javascript:
{ id: 'e1257a04fd0bb89222b5a3004b2c33c13846ee4a3c4f5e15fd07cb5069407b3b',
signature: '3045022100c3324a5610d910863a7d19eb69a64acb8a10671ef283fe52d1cf1bff3e2c125302207f3a23d64ae6bfeb06ee4dcdec7f52d40db2d292d1015e3becfa9845b021ad1d',
signSignature: undefined,
timestamp: 57964888,
type: 0,
fee: 10000000,
senderPublicKey: '02bd76db59c27450900c4432f63863a7e7030d2b33b1bc622b47da106a8ee3e118',
amount: 190000000,
recipientId: 'ATtYCbq1MdNYHEE7zA4YZ5K8DguXRVzaz2',
asset: undefined,
vendorField: 'Return tx' }
Server (please complete the following information):
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The abstract transaction that is extended should always have a default amount of 0 and require type 0 to have an amount greater than 0.
https://github.com/ArkEcosystem/AIPs/blob/master/AIPS/aip-11.md
See https://github.com/ArkEcosystem/core/tree/master/packages/crypto/src for reference once Core 2.6 is released.
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There are some deprecated properties in build.gradle due to the latest changes in version upgrade.
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The codebase needs to be updated to allow for the new 255 byte vendorfield size. Changes will be needed here: https://github.com/ArkEcosystem/java-crypto/blob/master/src/main/java/org/arkecosystem/crypto/transactions/Transaction.java#L158 .
Changes include:
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