ed25519 | Ed25519 high-performance public-key signature system as a RubyGem (MRI C extension and JRuby Java ex | Cryptography library
kandi X-RAY | ed25519 Summary
kandi X-RAY | ed25519 Summary
Ed25519 is a modern implementation of a Schnorr signature system using elliptic curve groups. Ed25519 provides a 128-bit security level, that is to say, all known attacks take at least 2^128 operations, providing the same security level as AES-128, NIST P-256, and RSA-3072.
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Top functions reviewed by kandi - BETA
- Computes the multiplication of two byte arrays
- Loads a 4 byte int from the input stream
- Load a 4 - byte long from the input stream
- Invert this field element
- Performs a simple operation
- Returns the square of this field element
- Initializes the sign for a private key
- Resets digest state
- Generate keypair
- Converts the group element to a point on the curve
- Create a Ruby module for the given Ruby runtime
- Returns the key spec for the given key
- Sign the object
- Compares this key with the specified seed and parameters
- Convert a hex string to a byte array
- Initialize the implementation
- Generates a random RSA key pair
- Synchronized
- Sign a keypair
- Verify a verification key
- Extracts the public key bytes from the given encoding
- Extracts the private key bytes from the specified encoding
- Returns the canonical version of the public key
- Returns the power of this field
- Decode a field element
- Performs reduction of group order
ed25519 Key Features
ed25519 Examples and Code Snippets
Lines of Code : 26
License : No License
Copypip 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 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 {
"msg": "Message for Ed25519 signing",
"pubKey":"7721a5832cb70cce1a960cf236d50a0e862555ccad400b5fee0bcf777f7ab476",
"signature":"6c4adbba332b5db520c0ec95433ea136f70fe2d50e8955a7049d216626a3491c0e5cbfefb8d779687cc9811311ccaf7cd07a0e96a570fb3a4b Community Discussions
Trending Discussions on ed25519
QUESTION
(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 20:19Your ssh key is generated with a passphrase and that's why it asks you for the passphrase.
SSH login without passwordYour 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:
QUESTION
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 20:49You 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.
QUESTION
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:
...ANSWER
Answered 2022-Feb-17 at 13:18Well, 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.pubto get the ssh public key. This was wrong. This secret needs the ssh private key. The correct command ispbcopy < ~/.ssh/id_rsa - KNOWN_HOSTS: After launch
ssh-keyscan github.comcommand, it's important to copy the line that belongs togithub.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
QUESTION
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 13:11TL;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
QUESTION
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
ANSWER
Answered 2022-Feb-09 at 13:22There 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
QUESTION
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.
QUESTION
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 09:18The 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.
QUESTION
I have a private key as a String and I want to convert it to PrivateKey
ANSWER
Answered 2022-Jan-27 at 14:11The 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:
QUESTION
ANSWER
Answered 2022-Jan-20 at 07:16QUESTION
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 00:02The 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.
You can read more about it at https://linuxhandbook.com/fix-permission-denied-publickey/.
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