lnurl-auth from lnbits wallets to services.

lnbits/core/models.py

@@ -1,4 +1,6 @@
 import json
+import hashlib
+from ecdsa import SECP256k1, SigningKey  # type: ignore
 from typing import List, NamedTuple, Optional, Dict
 from sqlite3 import Row
 
@@ -33,6 +35,14 @@ class Wallet(NamedTuple):
     def balance(self) -> int:
         return self.balance_msat // 1000
 
+    @property
+    def lnurlauth_key(self) -> SigningKey:
+        return SigningKey.from_string(
+            hashlib.sha256(self.id.encode("utf-8")).digest(),
+            curve=SECP256k1,
+            hashfunc=hashlib.sha256,
+        )
+
     def get_payment(self, payment_hash: str) -> Optional["Payment"]:
         from .crud import get_wallet_payment