Project
Reverse Dependencies for ed25519
The projects listed here declare ed25519 as a runtime or development dependency
0.0
A simple deploy tool, packaged as a rake task. Currently targeted for sauspiel.de
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Activity
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CLI tool ingesting YAML files to execute tasks on different shells with pre and post routines.
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joinself sdk
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Deployment wrapper around docker-compose and SSH Kit
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SmartMachine is a full-stack deployment framework for rails optimized for admin programmer happiness and peaceful administration. It encourages natural simplicity by favoring convention over configuration.
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Provides an easy-to-use interface for interacting with the Solana blockchain.
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This gem allows to use JSON RPC API Methods from solana.
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0.0
This gem allows to use JSON RPC API Methods from solana.
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0.0
Adds SSH access functionality to the spectre framework
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Activity
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Sign and verify message with sr25519
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0.0
# SshSig - SSH signature verification in pure ruby
SshSig is a Ruby gem which can be used to verify signatures signed created by `ssh-keygen`.
This capability was [first added](https://github.com/openssh/openssh-portable/commit/2a9c9f7272c1e8665155118fe6536bebdafb6166) in OpenSSH 8.0
allows SSH keys to be used for GPG-like signing capabilities, [including signing git commits](https://github.com/git/git/pull/1041).
## Installation
Add this line to your application's Gemfile:
```ruby
gem 'ssh_sig'
```
And then execute:
$ bundle install
Or install it yourself as:
$ gem install ssh_sig
## Usage
Version 1 of [the SSH signature format](https://github.com/openssh/openssh-portable/blob/b7ffbb17e37f59249c31f1ff59d6c5d80888f689/PROTOCOL.sshsig)
supports `ed25519` and `rsa` keys. It is recommended that you use `ed25519` over `rsa` where possible (`ssh-keygen -t ed25519`).
In order to verify a signature you need:
1. The public key of the sender
1. The signature file
1. The message to be verified.
```ruby
require 'ssh_sig'
armored_pubkey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILXPkJPI4TMFWZP4xRBQjNeizUG99KuZCt9G23rX48kz"
blob = ::SshSig::Blob.from_armor(
<<~EOF
-----BEGIN SSH SIGNATURE-----
U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgtc+Qk8jhMwVZk/jFEFCM16LNQb
30q5kK30bbetfjyTMAAAAEZmlsZQAAAAAAAAAGc2hhNTEyAAAAUwAAAAtzc2gtZWQyNTUx
OQAAAECJITeYJIlEeydsCTh1DkfdhlDJFBa73ojfWe0MbrIzoJKd9THd9WeQrhygSRGsNG
cU/stk3/919nykg67yG2gN
-----END SSH SIGNATURE-----
EOF
)
message = "This message was definitely sent by Brian Williams"
valid = ::SshSig::Verifier
.from_armored_pubkey(armored_pubkey)
.verify(blob, message)
if valid
puts 'Signature is valid'
else
puts 'Signature is not valid'
end
```
Signatures can be created using `ssh-keygen -Y sign -n file -f ~/.ssh/ed_25519 message.txt`
and will be outputted in `message.txt.sig`.
Public keys can be found in a variety of places, including:
- Your `~/.ssh/id_<alg>.pub` file
- `authorized_keys` files on servers
- `https://gitlab.com/<username>.keys`
- `https://github.com/<username>.keys`
The `SshSig::Verifier#from_gitlab` and `SshSig::Verifier#from_github` methods are provided
to automatically load public keys from the respective `<username>.keys` urls.
```ruby
require 'ssh_sig'
blob = ::SshSig::Blob.from_armor(
<<~EOF
-----BEGIN SSH SIGNATURE-----
U1NIU0lHAAAAAQAAADMAAAALc3NoLWVkMjU1MTkAAAAgtc+Qk8jhMwVZk/jFEFCM16LNQb
30q5kK30bbetfjyTMAAAAEZmlsZQAAAAAAAAAGc2hhNTEyAAAAUwAAAAtzc2gtZWQyNTUx
OQAAAECJITeYJIlEeydsCTh1DkfdhlDJFBa73ojfWe0MbrIzoJKd9THd9WeQrhygSRGsNG
cU/stk3/919nykg67yG2gN
-----END SSH SIGNATURE-----
EOF
)
message = 'This message was definitely sent by Brian Williams'
valid = ::SshSig::Verifier
.from_gitlab('bwill')
.verify(blob, message)
if valid
puts 'Signature is valid'
else
puts 'Signature is not valid'
end
```
## Is it safe to re-purpose SSH keys for signing?
Yes. The [SSH signature protocol](https://github.com/openssh/openssh-portable/blob/d575cf44895104e0fcb0629920fb645207218129/PROTOCOL.sshsig)
is designed to be resistant to cross-protocol attacks, where signatures created for one purpose (i.e. signing a git commit),
may be re-used for another purpose (i.e. authenticating to a server). It does this using the magic pre-amble (to differentiate
between messages signed by `ssh-keygen` and messages used for SSH authentication) and namespaces (to differentiate between
messages signed by `ssh-keygen` but used for different purposes). This causes identical messages to produce different signatures
for each different protocol.
## Development
After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and the created tag, and push the `.gem` file to [rubygems.org](https://rubygems.org).
## Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/ssh_sig. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/[USERNAME]/ssh_sig/blob/main/CODE_OF_CONDUCT.md).
## License
The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
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Activity
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Conveniently manage numerous SSH tunnels with ncurses
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Tools for managing servers and apps built using dokku
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Config, manage, and maintain multiple QEMU instances for your projects
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Test Kitchen is an integration tool for developing and testing infrastructure code and software on isolated target platforms.
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Gem Ton SDK Ruby for all TVM ruby projects
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0.0
Trezor
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Activity
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OPC UA Server for Universal Robots. See https://github.com/fpauker/urua
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Vagrant is a tool for building and distributing virtualized development environments.
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Automation framework with a plugin/command architecture, entities, contributions, filters and asynchronous workers. Shell included, web interface in a separate project.
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