from __future__ import annotations
import io
from typing import List, Iterator, Tuple, Optional, Any, TYPE_CHECKING, Callable
from ctypes import *
from datetime import datetime
from numbers import Number
from pdftools_sdk.internal import _lib
from pdftools_sdk.internal.utils import _string_to_utf16, _utf16_to_string
from pdftools_sdk.internal.streams import _StreamDescriptor, _NativeStream
from pdftools_sdk.internal.native_base import _NativeBase
from pdftools_sdk.internal.native_object import _NativeObject
import pdftools_sdk.internal
import pdftools_sdk.sign.timestamp_configuration
if TYPE_CHECKING:
from pdftools_sdk.crypto.hash_algorithm import HashAlgorithm
else:
HashAlgorithm = "pdftools_sdk.crypto.hash_algorithm.HashAlgorithm"
[docs]
class TimestampConfiguration(pdftools_sdk.sign.timestamp_configuration.TimestampConfiguration):
"""
The time-stamp configuration
"""
@property
def hash_algorithm(self) -> HashAlgorithm:
"""
The message digest algorithm
The algorithm used to hash the document and from which the time-stamp signature is created.
*Note:* This algorithm must be supported by the time-stamp server; many support only SHA-256.
Default is :attr:`pdftools_sdk.crypto.hash_algorithm.HashAlgorithm.SHA256`
Returns:
pdftools_sdk.crypto.hash_algorithm.HashAlgorithm
"""
from pdftools_sdk.crypto.hash_algorithm import HashAlgorithm
_lib.PdfToolsCryptoProvidersPkcs11_TimestampConfiguration_GetHashAlgorithm.argtypes = [c_void_p]
_lib.PdfToolsCryptoProvidersPkcs11_TimestampConfiguration_GetHashAlgorithm.restype = c_int
ret_val = _lib.PdfToolsCryptoProvidersPkcs11_TimestampConfiguration_GetHashAlgorithm(self._handle)
if ret_val == 0:
_NativeBase._throw_last_error()
return HashAlgorithm(ret_val)
@hash_algorithm.setter
def hash_algorithm(self, val: HashAlgorithm) -> None:
"""
The message digest algorithm
The algorithm used to hash the document and from which the time-stamp signature is created.
*Note:* This algorithm must be supported by the time-stamp server; many support only SHA-256.
Default is :attr:`pdftools_sdk.crypto.hash_algorithm.HashAlgorithm.SHA256`
Args:
val (pdftools_sdk.crypto.hash_algorithm.HashAlgorithm):
property value
Raises:
ValueError:
If the value is invalid or not supported.
"""
from pdftools_sdk.crypto.hash_algorithm import HashAlgorithm
if not isinstance(val, HashAlgorithm):
raise TypeError(f"Expected type {HashAlgorithm.__name__}, but got {type(val).__name__}.")
_lib.PdfToolsCryptoProvidersPkcs11_TimestampConfiguration_SetHashAlgorithm.argtypes = [c_void_p, c_int]
_lib.PdfToolsCryptoProvidersPkcs11_TimestampConfiguration_SetHashAlgorithm.restype = c_bool
if not _lib.PdfToolsCryptoProvidersPkcs11_TimestampConfiguration_SetHashAlgorithm(self._handle, c_int(val.value)):
_NativeBase._throw_last_error(False)
@staticmethod
def _create_dynamic_type(handle):
return TimestampConfiguration._from_handle(handle)
@classmethod
def _from_handle(cls, handle):
"""
Internal factory method for constructing an instance using an internal handle.
This method creates an instance of the class by bypassing the public constructor.
"""
instance = TimestampConfiguration.__new__(cls) # Bypass __init__
instance._initialize(handle)
return instance
def _initialize(self, handle):
super()._initialize(handle)