def scrypt(*, password: str, salt: str, n: int, r: int, p: int,
dklen: int) -> bytes:
if n >= 2**(128 * r / 8):
raise ValueError(
"The given `n` should be less than `2**(128 * r / 8)`."
f"\tGot `n={n}`, r={r}, 2**(128 * r / 8)={2**(128 * r / 8)}")
res = _scrypt(password=password, salt=salt, key_len=dklen, N=n, r=r, p=p)
return res if isinstance(
res, bytes) else res[0] # PyCryptodome can return Tuple[bytes]
def scrypt(*, password: str, salt: str, n: int, r: int, p: int,
dklen: int) -> bytes:
if n * r * p < 2**20: # 128 MB memory usage
raise ValueError("The Scrypt parameters chosen are not secure.")
if n >= 2**(128 * r / 8):
raise ValueError(
"The given `n` should be less than `2**(128 * r / 8)`."
f"\tGot `n={n}`, r={r}, 2**(128 * r / 8)={2**(128 * r / 8)}")
res = _scrypt(password=password, salt=salt, key_len=dklen, N=n, r=r, p=p)
return res if isinstance(
res, bytes) else res[0] # PyCryptodome can return Tuple[bytes]
def scrypt(*, password: str, salt: str, n: int, r: int, p: int,
dklen: int) -> bytes:
assert (n < 2**(128 * r / 8))
res = _scrypt(password=password, salt=salt, key_len=dklen, N=n, r=r, p=p)
return res if isinstance(
res, bytes) else res[0] # PyCryptodome can return Tuple[bytes]