Signature Verification Python package

The Verify Crypto Signature package is a Python library for verifying and working with cryptographic signatures from various blockchain networks. It currently supports EVM (Ethereum Virtual Machine) and Solana blockchain signatures.

Installation

pip install verify-crypto-signature

Features

• Verify message signatures from EVM and Solana addresses

• Sign messages using private keys

• Recover wallet addresses from signatures (EVM only)

• Validate EVM and Solana addresses

EVM Signature Verification

Verifying an EVM Signature

from verify_crypto_signature.evm import VerifyEVM

# Verify if a message was signed by a specific address
wallet_address = "0x..."  # Example address
message = "Hello, world!"
signature = "0x..."  # Signature obtained from the wallet

# Verify the signature
is_valid = VerifyEVM.verify_signature(wallet_address, message, signature)
if is_valid:
    print("Signature is valid")
else:
    print("Signature is invalid")

Signing a Message with EVM

from verify_crypto_signature.evm import VerifyEVM

# Sign a message with a private key
private_key = "0x..."  # Your private key (keep this secret!)
message = "Hello, world!"

# Sign the message
signed_message = VerifyEVM.sign_message(message, private_key)
signature = signed_message.signature.hex()
print(f"Signature: {signature}")

Recovering an Address from an EVM Signature

from verify_crypto_signature.evm import VerifyEVM

# Recover the signer's address
message = "Hello, world!"
signature = "0x..."  # The signature

address = VerifyEVM.get_address_from_message(message, signature=signature)
print(f"Signer address: {address}")

Solana Signature Verification

Verifying a Solana Signature

from verify_crypto_signature.sol import VerifySOL

# Verify if a message was signed by a specific address
wallet_address = "5yQ6...."  # Example Solana address
message = "Hello, world!"
signature = "4K2...."  # Signature obtained from the wallet

# Verify the signature
is_valid = VerifySOL.verify_signature(wallet_address, message, signature)

Signing a Message with Solana

from verify_crypto_signature.sol import VerifySOL

# Sign a message with a private key
private_key = "4K2...."  # Your private key (keep this secret!)
message = "Hello, world!"

# Sign the message
signed_message = VerifySOL.sign_message(message, private_key)

Integration with Walver.io

The Verify Crypto Signature package can be used together with Walver.io for enhanced crypto verification workflows. This package enables:

1. Secure verification of user wallet ownership

2. Seamless integration with your authentication systems

3. Multi-chain support covering both EVM and Solana ecosystems

4. Signature creation for both EVM and Solana

Dependencies

The package requires the following key dependencies:

• eth_account

• eth_utils

• eth_keys

• solders

These are automatically installed when you install the package using pip.

Source Code

The source code for this package is available on GitHub: https://github.com/walver-io/verify-crypto-signature