ed25519 | Portable C implementation of Ed25519 , a high-speed high | Cryptography library

by orlp C Version: Current License: Zlib

X-Ray Key Features Code Snippets(3)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | ed25519 Summary

ed25519 is a C library typically used in Security, Cryptography applications. ed25519 has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This is a portable implementation of [Ed25519] based on the SUPERCOP "ref10" implementation. Additionally there is key exchanging and scalar addition included to further aid building a PKI using Ed25519. All code is licensed under the permissive zlib license. All code is pure ANSI C without any dependencies, except for the random seed generation which uses standard OS cryptography APIs (CryptGenRandom on Windows, /dev/urandom on nix). If you wish to be entirely portable define ED25519_NO_SEED. This disables the ed25519_create_seed function, so if your application requires key generation you must supply your own seeding function (which is simply a 256 bit (32 byte) cryptographic random number generator).

Support

Quality

Security

License

Reuse

Support

ed25519 has a low active ecosystem.

It has 413 star(s) with 134 fork(s). There are 33 watchers for this library.

It had no major release in the last 6 months.

There are 3 open issues and 12 have been closed. On average issues are closed in 69 days. There are 7 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of ed25519 is current.

Quality

ed25519 has 0 bugs and 0 code smells.

Security

ed25519 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

ed25519 code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

ed25519 is licensed under the Zlib License. This license is Permissive.

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

Reuse

ed25519 releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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ed25519 Key Features

No Key Features are available at this moment for ed25519.

ed25519 Examples and Code Snippets

Ed25519 Signatures - Example

Python

Lines of Code : 26

License : No License

Copy

pip install ed25519


import ed25519

privKey, pubKey = ed25519.create_keypair()
print("Private key (32 bytes):", privKey.to_ascii(encoding='hex'))
print("Public key (32 bytes): ", pubKey.to_ascii(encoding='hex'))

msg = b'Message for Ed25519 signing

Ed25519 Signatures - Example

Python

Lines of Code : 26

License : No License

Copy

pip install ed25519


import ed25519

privKey, pubKey = ed25519.create_keypair()
print("Private key (32 bytes):", privKey.to_ascii(encoding='hex'))
print("Public key (32 bytes): ", pubKey.to_ascii(encoding='hex'))

msg = b'Message for Ed25519 signing

EdDSA-Ed25519: Verify Signature

Python

Lines of Code : 12

License : No License

Copy

{
  "msg": "Message for Ed25519 signing",
  "pubKey":"7721a5832cb70cce1a960cf236d50a0e862555ccad400b5fee0bcf777f7ab476",
  "signature":"6c4adbba332b5db520c0ec95433ea136f70fe2d50e8955a7049d216626a3491c0e5cbfefb8d779687cc9811311ccaf7cd07a0e96a570fb3a4b

Community Discussions

Trending Discussions on ed25519

SSH GitLab pull always asks for password

Sign and verify JWS (json web signature) with Ed25519 KeyPair

Github actions permission denied (publickey)

NEAR transaction without receipt but with receipt_outcome

Getting 500 Internal Server Error when calling /mint_nft NEAR REST API

Issue installing cryptography on Raspberry Pi 2B (armv7h Arch Linux ARM) (python 3.9.8)

Pysftp fails with "Authentication failed" and "Server did not send a server-sig-algs list; defaulting to our first preferred algo ('rsa-sha2-512')"

String to PrivateKey Ed25519

Git bash shows me the ed25519 key instead of the rsa key fingerprint

Windows 11 Permission denied (publickey)

QUESTION

SSH GitLab pull always asks for password

Asked 2022-Mar-22 at 00:59

(GitLab specifically! (No issues with GitHub))
I'm trying to create a script to pull a project from main GitLab branch without asking for password. A couple of remote computers have a kiosk-mode project. It's kind of boring to always connect manually to them - instead of having a cron-job to pull automagically.

I've setup to use SSH and created and added my SSH ed25519 key.
Added the proper url in ./.git/config like:

...

ANSWER

Answered 2021-Oct-01 at 20:19

Your ssh key is generated with a passphrase and that's why it asks you for the passphrase.

SSH login without password

Your aim

You want to use Linux and OpenSSH to automate your tasks. Therefore you need an automatic login from host A / user a to Host B / user b. You don't want to enter any passwords, because you want to call ssh from a within a shell script.

How to do it First log in on A as user a and generate a pair of authentication keys. Do not enter a passphrase:

Source https://stackoverflow.com/questions/69410143

QUESTION

Sign and verify JWS (json web signature) with Ed25519 KeyPair

Asked 2022-Feb-17 at 20:49

I want to sign a JWS (json web signature) with a private key generated through Ed25519 on a clients device. Then send this signature to my backend and verify it with the public key. To get familiar with the procedure I want to try to sign and verify a JWS in node js.
Both my private and public key are already generated and are available in base58. This is my current attempt at signing a JWT with an Ed25519 privateKey:

...

ANSWER

Answered 2022-Feb-17 at 20:49

You need your keys in a format that Node.js recognizes. KeyObject create*Key APIs recognize and the key is supported in - for Ed25519 keys that is, assuming Node.js >= 16.0.0:

PEM/DER in SPKI for public keys
PEM/DER in PKCS8 for private keys
JWK for both public and private keys

Here's a snippet that uses DER.

Source https://stackoverflow.com/questions/68612396

QUESTION

Github actions permission denied (publickey)

Asked 2022-Feb-17 at 13:18

I'm stucked trying to launch a Github actions workflow. The Flutter project has a dependency of a custom package. I have this custom package in a Github repository. This is the way I set up this dependency in the pubspec.yaml:

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ANSWER

Answered 2022-Feb-17 at 13:18

Well, I've found out the problem. @GuiFalourd putted me in the right way. Was in the secrets values (on github repo page, go to settings -> secrets -> actions -> New repository secret):

SSH_PRIVATE_KEY: At the beginnig, I used the command pbcopy < ~/.ssh/id_rsa.pub to get the ssh public key. This was wrong. This secret needs the ssh private key. The correct command is pbcopy < ~/.ssh/id_rsa
KNOWN_HOSTS: After launch ssh-keyscan github.com command, it's important to copy the line that belongs to github.com ssh-rsa [KEY]

NOTE: this secrets must exists on all app dependency packages repositories.

I let you here the final version of the workflow yaml file:

name: Check merge

Source https://stackoverflow.com/questions/71142656

QUESTION

NEAR transaction without receipt but with receipt_outcome

Asked 2022-Feb-14 at 13:11

When querying archival node for transactions with EXPERIMENTAL_tx_status method, some transactions have no receipts while having receipts_outcome. How is that possible, and how is that transaction different from others?

If I understand correctly, receipts_outcome are the results of applying receipts. According to explorer, this transaction has Convert Transaction To Receipt part, so there should be some receipts generated.

According to documentation

A Receipt is the only actionable object in the system. When we talk about "processing a transaction" on the NEAR platform, this eventually means "applying receipts" at some point.

A good mental model is to think of a Receipt as a paid message to be executed at the destination (receiver). And a Transaction is an externally issued request to create the Receipt (there is a 1 to 1 relationship).

My query

...

ANSWER

Answered 2022-Feb-14 at 13:11

TL;DR the receipt is a local receipt

The transaction from your example is a simple AddKey action where the sender is the receiver (remember this, it's important)

"Execute" transaction (means to convert the transaction into a Receipt)
Apply the Receipts

As the result of the conversion of the transaction into a receipt is your transaction_outcome

Source https://stackoverflow.com/questions/71112205

QUESTION

Getting 500 Internal Server Error when calling /mint_nft NEAR REST API

Asked 2022-Feb-09 at 13:22

I have cloned this NEAR REST API SERVER repo into my local system and haven't made any changes to its original code. Only added console logs for debugging purpose. Using its API, I have successfully deployed a contract to testnet account and also called that contract.

But when comes to NFT part, its not working. I'm calling /mint_nft API and getting 500 Internal Server Error.

It's breaking here:

let create_token = await token.ViewNFT(tokenId, contract);

create_token is null.

If I do minting with NEAR CLI, its working fine and I can see that NFT in my testnet wallet..

near call $ID nft_mint '{"token_id": "02", "receiver_id": "'$ID'", "token_metadata": { "title": "Design #2", "description": "Art Design", "media": "https://ipfs.io/ipfs/Qme7ss3ARVgxv6rXqVPiikMJ8u2NLgmgszg13pYrDKEoiu", "copies": 1}}' --accountId $ID --deposit 0.1

near-api-server.config.json

...

ANSWER

Answered 2022-Feb-09 at 13:22

There are several issues in the existing repository for /mint_nft.

The REST-API implemented doesn't follow the correct format when minting an NFT. I have created a PR to address the issue

In short, the function call to mint an NFT is missing one argument, receiver_id, and the format and name of metadata is not correct. It should be token_metadata: {} // type is object, not string.

If we change the postData to

Source https://stackoverflow.com/questions/71028781

QUESTION

Issue installing cryptography on Raspberry Pi 2B (armv7h Arch Linux ARM) (python 3.9.8)

Asked 2022-Feb-05 at 19:41

I'm having some trouble installing the python cryptography package on my raspberry pi, specifically with python version 3.9.8 (installed with pyenv). The cryptography package is installed on my system using pacman (python-cryptography package), and thus works using the main python interpreter (3.10.1). However, I need some version of python 3.9 specifically for another package I am using in this project. Any time I try to install cryptography through the python 3.9.8 environment, I get the following error:

...

ANSWER

Answered 2022-Jan-14 at 19:59

@jakub's solution ended up solving the problem for me. I uninstalled the version of rust that was installed through pacman. To replace it, I installed rustup and then using rustup, installed the latest nightly version of rust (1.60). Once I did that, installing the cryptography package worked just fine.

If you are using rustup, just make sure that you add ~/.cargo/bin to your PATH before installation. Also, the command I used to install rust through rustup was rustup toolchain install nightly.

Source https://stackoverflow.com/questions/70690519

QUESTION

Pysftp fails with "Authentication failed" and "Server did not send a server-sig-algs list; defaulting to our first preferred algo ('rsa-sha2-512')"

Asked 2022-Jan-28 at 09:18

I have ec2 instance with ubuntu v20.04 and it has python v3.8.10 and pysftp 0.2.9.

I have generate .pem file from .ppk file using below command

puttygen sftp_server.ppk -O private-openssh -o sftp_server.pem

I am able to connect successfully to sftp server using command line-

...

ANSWER

Answered 2022-Jan-28 at 09:18

The error comes form underlying Paramiko and is discussed here:
Paramiko authentication fails with "Agreed upon 'rsa-sha2-512' pubkey algorithm" (and "unsupported public key algorithm: rsa-sha2-512" in sshd log)

Though pysftp does not expose the disabled_algorithms parameter.

You better switch to using Paramiko directly. The pysftp is abandoned project. See pysftp vs. Paramiko.

Source https://stackoverflow.com/questions/70812056

QUESTION

String to PrivateKey Ed25519

Asked 2022-Jan-27 at 14:11

I have a private key as a String and I want to convert it to PrivateKey

...

ANSWER

Answered 2022-Jan-27 at 14:11

The posted key is double encoded, first hex, then Base64. Note that the double encoding is not necessary. If the key is Base64 and hex decoded, the result is a 64 bytes key.

From this 64 bytes key the first 32 bytes are the secret key and the following 32 bytes are the public key. More details about this format can be found here.

Import, signing and verification with BouncyCastle are possible with Ed25519PrivateKeyParameters, Ed25519PublicKeyParameters and Ed25519Signer classes:

Source https://stackoverflow.com/questions/70865881

QUESTION

Git bash shows me the ed25519 key instead of the rsa key fingerprint

Asked 2022-Jan-20 at 16:34

I tried a tutorial to set up GitHub SSH key, but when I type in the prompt it shows me the ed25519 instead of the rsa keyfingerprint.

Any pointer on how to add the rsa key fingerprint?

...

ANSWER

Answered 2022-Jan-20 at 07:16

Source https://stackoverflow.com/questions/70766337

QUESTION

Windows 11 Permission denied (publickey)

Asked 2022-Jan-17 at 10:02

I have been unable to access servers via SSH after a recent upgrade to Windows 11.

I keep getting a permission denied (publickey) error.

I have tried regenerating new public keys with ed25519 instead of the deprecated rsa and I still get the same error.

I have seen answers alluding to file permissions but am afraid am not sure what files they are referring to.

...

ANSWER

Answered 2022-Jan-08 at 00:02

The files that they are most likely referring to are typically the .ssh folder itself (this folder can be found in your home directory) and the contents within. Here's a table for recommended permissions on those files and folder.

Element Permission .ssh directory 700 ((drwx------) public keys 644 (-rw-r--r--) private keys 600 (-rw-------) authorized_keys 600 (-rw-------) known_hosts 600 (-rw-------) config 600 (-rw-------)

You can read more about it at https://linuxhandbook.com/fix-permission-denied-publickey/.

Source https://stackoverflow.com/questions/70611251

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

Vulnerabilities

No vulnerabilities reported

Install ed25519

You can download it from GitHub.

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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