Nostr Web Client

I can generate the correct event_id, but always get bad signature. Any wrong with my sign?

from ecdsa import SigningKey, VerifyingKey, SECP256k1

# create event id

event_id = json_hash.hex()

print("event id:", event_id)

print("evnt id length:", len(event_id))

# signature the json_hash

signature = sk.sign(json_hash)

#convert to hex

sig_hex = signature.hex()

print("sig:", sig_hex)

print("sig length:", len(sig_hex))

看起来流程是对的，但是不知道 json_hash 是不是字节数组。

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json_hash 是这样的

# Serialize the event data

serialized_event = json.dumps([

event["pubkey"],

event["created_at"],

event["kind"],

event["tags"],

event["content"]

], separators=(',', ':'), ensure_ascii=False

)

print("json content:", serialized_event)

# hash the json using sha-256

json_hash = hashlib.sha256(serialized_event.encode('utf-8')).digest()

json_hash应该是二进制的哈希值吧？

n文档关于sig就这么一句话而已

sig": <64-bytes lowercase hex of the signature of the sha256 hash of the serialized event data, which is the same as the "id" field>

}

print(type(json_hash)到结果是class ‘bytes’.

是不是要字符串str才是正确的？

就是 bytes 了

搞不懂了哈哈😂，我觉得是公钥格式的问题。本地验证是用直接生成的full public key验证的所以结果是valid。传到relay的pubkey是hex格式公钥，好像是full key的32字节x坐标而已。不知道是不是这么复杂

是的 32位公钥。你取后面32位就可以了