{"library":"starkbank-ecdsa","title":"StarkBank ECDSA","type":"library","description":"StarkBank ECDSA is a lightweight and fast pure Python library for Elliptic Curve Digital Signature Algorithm (ECDSA). As of version 2.2.0, it provides tools for generating private/public keys, signing data, and verifying signatures. The library maintains a steady release cadence, with several updates per year.","language":"python","status":"active","last_verified":"Wed May 20","install":{"commands":["pip install starkbank-ecdsa"],"cli":null},"imports":["from starkbank_ecdsa import PrivateKey","from starkbank_ecdsa import PublicKey","from starkbank_ecdsa import Ecdsa","from starkbank_ecdsa import Curve"],"auth":{"required":false,"env_vars":[]},"links":{"homepage":null,"github":"https://github.com/starkbank/ecdsa-python.git","docs":null,"changelog":null,"pypi":"https://pypi.org/project/starkbank-ecdsa/","npm":null,"openapi_spec":null,"status_page":null,"smithery":null},"quickstart":{"code":"import hashlib\nfrom starkbank_ecdsa import PrivateKey, PublicKey, Ecdsa\n\n# 1. Generate a new private key\nprivate_key = PrivateKey.generate()\nprint(f\"Private Key: {private_key.toPem().decode().strip()}\")\n\n# 2. Get the corresponding public key\npublic_key = private_key.public_key()\nprint(f\"Public Key: {public_key.toPem().decode().strip()}\")\n\n# 3. Data to sign (must be a 32-byte hash)\nmessage = \"This is a test message for ECDSA signing and verification.\"\nmessage_hash = hashlib.sha256(message.encode()).digest()\nprint(f\"Message hash (bytes): {message_hash.hex()}\")\n\n# 4. Sign the message hash\nsignature = Ecdsa.sign(message_hash, private_key)\nprint(f\"Signature (hex): {signature.toHex()}\")\n\n# 5. Verify the signature\nis_valid = Ecdsa.verify(message_hash, signature, public_key)\nprint(f\"Signature is valid: {is_valid}\")\n\n# Example of invalid signature (tampered message)\ninvalid_message_hash = hashlib.sha256(b\"tampered message\").digest()\nis_invalid = Ecdsa.verify(invalid_message_hash, signature, public_key)\nprint(f\"Signature with tampered message is valid: {is_invalid}\")\n","lang":"python","description":"This quickstart demonstrates how to generate ECDSA private and public keys, sign a 32-byte message hash, and verify the resulting signature using 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