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secp256k1.swift's Introduction

CI Status Version License Platform Carthage compatible

⚗️ secp256k1

This library provides secp256k1 bindings for Swift with Cocoapods, Carthage and Swift Package Manager on macOS and Linux.
The Cocoapods version supports iOS 8.0, macOS 10.10, tvOS 9.0 and watchOS 2.0. The Swift Package Manager version supports macOS and Linux.

We try to merge bug fix commits ASAP and only change the import and config structure of the original repository in order to create a compilable version for the package managers.

All credits for the original source code goes to bitcoin-core.

Note: This library only binds the original C code into a Swift package. If you want an Ethereum Web3 package which manages signatures and verifications, check out Web3.swift

Example

To run the example project, run pod try secp256k1.swift. Or clone the repo, and run pod install from the Example directory.

Installation

CocoaPods

secp256k1 is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'secp256k1.swift'

Carthage

secp256k1 is compatible with Carthage, a decentralized dependency manager that builds your dependencies and provides you with binary frameworks. To install it, simply add the following line to your Cartfile:

github "Boilertalk/secp256k1.swift"

Swift Package Manager

secp256k1 is compatible with Swift Package Manager v4 (Swift 4 and above). Simply add it to the dependencies in your Package.swift.

dependencies: [
    .package(url: "https://github.com/Boilertalk/secp256k1.swift.git", from: "0.1.0")
]

Usage

To use secp256k1 functions you need to import it first.

import secp256k1

After that you can use all secp256k1 functions as described in the official headers.

Author

Koray Koska, [email protected]

License

secp256k1 is available under the MIT license. See the LICENSE file for more info.

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secp256k1.swift's Issues

How to perform ECC point multiplication using EC public key and EC private key.

Hi All,

I am trying to use this library to perform a ECC point multiplication operation. The multiplication operation is between a EC public JWK key ( x, y ) values and EC private key ( d value ). Can you please guide me how can i do that using this library in swift. Which function should i be calling. Some example code will help.

Thanks
Deepesh

Swift Build Fails

It seems this package cannot be added once you update beyond swift 5.

Repro:

  1. Create a library that uses this package. Example: https://pastebin.com/2WEZxsHm . This example uses Vapor but it is also repoduceable on a simple client side package (to get this package run vapor new SECP256k1issue locally in a new repo. Then add the secp256k1 package
  2. Make sure your swift version is > 5.1. Run swift --version to confirm
  3. Run swift build from the folder that contains the package.

Notice the error: https://pastebin.com/ad9WVhsL

Can't install using Carthage

I'm adding the following line to the Carthage file:

github "Boilertalk/secp256k1.swift"

and running carthage update and getting the following error:

*** Fetching secp256k1.swift
*** Checking out secp256k1.swift at "0.1.1"
*** xcodebuild output can be found in /var/folders/jx/x6pq8zvs2xqghx_whv3cyh9w7qmttx/T/carthage-xcodebuild.y4fL6H.log
*** Skipped building secp256k1.swift due to the error:
Dependency "secp256k1.swift" has no shared framework schemes

If you believe this to be an error, please file an issue with the maintainers at https://github.com/Boilertalk/secp256k1.swift/issues/new

Swift 5.0 Support

Hi All

I can see this does not build and fails with Nimble. Also its running on swift 4.0 version. Any plans to update to swift 5.0 ?

Screenshot 2020-06-08 at 20 29 31

Thanks
Deepesh

Carthage Support for MacOS

When trying to consume this into a MacOS based project using Carthage, I get the error:

$ carthage bootstrap --platform macOS --cache-builds --verbose
<snip>
*** Skipped building secp256k1.swift due to the error: 
Dependency "secp256k1.swift" has no shared framework schemes for any of the platforms: Mac

Is this a supported configuration?

Swift C++ interoperability

secp256k1 is not working when C++/ObjectiveC++ interoperability is enabled with Swift 5.9.
Capture d’écran 2023-07-20 à 10 09 34
I get: Cannot find 'SECP256K1_CONTEXT_SIGN' in scope

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