Claude generated a replacement for the existing password hashing helper in a Python API.
The API handles user authentication and sees login spikes during business hours. Password verification latency is monitored on small app instances.
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from argon2 import PasswordHasher
from argon2.exceptions import VerificationError, VerifyMismatchError
from argon2.low_level import Type
ph = PasswordHasher(
time_cost=3,
memory_cost=65536,
parallelism=2,
hash_len=32,
salt_len=16,
type=Type.ID
)
def hash_password(plain: str) -> str:
return ph.hash(plain)
def verify_password(plain: str, hashed: str) -> bool:
try:
ph.verify(hashed, plain)
return True
except VerifyMismatchError:
return False
except VerificationError:
return False
def password_needs_rehash(hashed: str) -> bool:
return ph.check_needs_rehash(hashed)