First product

app/auth/security.py

@@ -0,0 +1,19 @@
+from __future__ import annotations
+
+from argon2 import PasswordHasher
+from argon2.exceptions import InvalidHashError, VerificationError
+
+
+class PasswordService:
+    def __init__(self, hasher: PasswordHasher | None = None) -> None:
+        self._hasher = hasher or PasswordHasher()
+
+    def hash_password(self, password: str) -> str:
+        return self._hasher.hash(password)
+
+    def verify_password(self, password_hash: str, password: str) -> bool:
+        try:
+            return bool(self._hasher.verify(password_hash, password))
+        except (InvalidHashError, VerificationError):
+            return False
+