merkletree | simple Java implementation of Merkle Trees

by richpl Java Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(4)Vulnerabilities Install Support

kandi X-RAY | merkletree Summary

merkletree is a Java library. merkletree has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. However merkletree build file is not available. You can download it from GitHub.

A simple Java implementation of Merkle Trees, with Ant build file and JUnit test classes. The leaves of the tree are represented by Leaf objects, each of which can contain an arbitrarily long list of blocks of data. Each block is represented as an array of bytes. Non-leaf nodes are represented by MerkleTree objects, each of which consists of a message digest or hash, and two child nodes. The digest algorithm is specified when the tree is created. The child nodes can either be Leaf objects, or further MerkleTree objects (i.e. subtrees). A TreeBuilder class is provided that builds an example MerkleTree object, and uses the pretty print method provided by MerkleTree to print out the resulting tree. JUnit test suites are provided to exercise the Leaf and MerkleTree classes.

Support

Quality

Security

License

Reuse

Support

merkletree has a low active ecosystem.

It has 43 star(s) with 18 fork(s). There are 8 watchers for this library.

It had no major release in the last 6 months.

There are 0 open issues and 1 have been closed. On average issues are closed in 258 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of merkletree is current.

Quality

merkletree has 0 bugs and 0 code smells.

Security

merkletree has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

merkletree code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

merkletree is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

merkletree releases are not available. You will need to build from source code and install.

merkletree has no build file. You will be need to create the build yourself to build the component from source.

Top functions reviewed by kandi - BETA

kandi has reviewed merkletree and discovered the below as its top functions. This is intended to give you an instant insight into merkletree implemented functionality, and help decide if they suit your requirements.

Creates a simple Merkle Tree
Returns a string representation of the specified byte array
Pretty print the tree
Generates the digest for a leaf node
Adds two children
Returns a string representation of the data block
Returns the data block associated with this leaf node

Get all kandi verified functions for this library.

merkletree Key Features

No Key Features are available at this moment for merkletree.

merkletree Examples and Code Snippets

No Code Snippets are available at this moment for merkletree.

Community Discussions

Trending Discussions on merkletree

How to properly type an overloaded function

"Hash of previous block" from stratum protocol

merkletreejs method getHexProof doesn't work?

Duck-typing user-defined classes

QUESTION

How to properly type an overloaded function

Asked 2021-Jun-10 at 13:13

I have the following JavaScript function:

...

ANSWER

Answered 2021-Jun-09 at 02:19

Overloaded functions in Typescript are achieved by splitting the function's type signature apart into two sides: the one-or-more call signatures seen by the callers of the function, and after this, the single implementation signature seen by the implementer of the function. You left the implementation signature out (or rather, you accidentally used the last call signature as the implementation signature).

Call signatures are just declared, not implemented. So you end a call signature with just a semicolon ; and not an implementation block { ... }. In your case, you want combinedHash to be called in one of four possible ways, corresponding to each of first and second being either Buffer or null:

Source https://stackoverflow.com/questions/66071930

QUESTION

"Hash of previous block" from stratum protocol

Asked 2021-Mar-02 at 17:04

When I receive mining.notify from pool (Stratum mining protocol), previous block hash not exists in blockchain.

Can someone explain this?

For example, I received this data from pool:

...

ANSWER

Answered 2021-Mar-02 at 17:04

I found answer. Previous block hash inside "mining.notify" is 8 x 4-Byte-string expressed as little endian.

in my case byte array: 852ab3ac_f6baeb51_e883cc88_f49ef03a_e17ed811_0009a5fb_00000000_00000000

This array is a collection of eight 4-Bytes words that, when converted to big endian, produce "00000000_00000000_0009a5fb_e17ed811_f49ef03a_e883cc88_f6baeb51_852ab3ac", which is Block 672486

Source https://stackoverflow.com/questions/66412968

QUESTION

merkletreejs method getHexProof doesn't work?

Asked 2020-Jul-31 at 17:38

I am trying test merkle proof with merkletreejs library and I can't figure out why this works

...

ANSWER

Answered 2020-Jul-31 at 17:38

It seems it needs some extra code in order to work. This code works:

Source https://stackoverflow.com/questions/63056466

QUESTION

Duck-typing user-defined classes

Asked 2020-Feb-19 at 16:56

So Python's core language and built-ins use a lot of duck typing. But for our own code, say I want to create my own class with a method that deals with "certain types" of objects, is it more idiomatic to use duck typing:

...

ANSWER

Answered 2020-Feb-19 at 16:54

From a pure typing perspective, MerkleTree.method will accept an argument of any type; Python has no way of restricting it.

From a duck-typing perspective, you promise that

Source https://stackoverflow.com/questions/60304410

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install merkletree

You can download it from GitHub.
You can use merkletree like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the merkletree component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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