当前位置: 首页>>代码示例>>Python>>正文


Python interfaces.HashBackend方法代码示例

本文整理汇总了Python中cryptography.hazmat.backends.interfaces.HashBackend方法的典型用法代码示例。如果您正苦于以下问题:Python interfaces.HashBackend方法的具体用法?Python interfaces.HashBackend怎么用?Python interfaces.HashBackend使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在cryptography.hazmat.backends.interfaces的用法示例。


在下文中一共展示了interfaces.HashBackend方法的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: __init__

# 需要导入模块: from cryptography.hazmat.backends import interfaces [as 别名]
# 或者: from cryptography.hazmat.backends.interfaces import HashBackend [as 别名]
def __init__(self, algorithm, length, otherinfo, backend):

        _common_args_checks(algorithm, length, otherinfo)
        self._algorithm = algorithm
        self._length = length
        self._otherinfo = otherinfo
        if self._otherinfo is None:
            self._otherinfo = b""

        if not isinstance(backend, HashBackend):
            raise UnsupportedAlgorithm(
                "Backend object does not implement HashBackend.",
                _Reasons.BACKEND_MISSING_INTERFACE
            )
        self._backend = backend
        self._used = False 
开发者ID:aliyun,项目名称:oss-ftp,代码行数:18,代码来源:concatkdf.py

示例2: __init__

# 需要导入模块: from cryptography.hazmat.backends import interfaces [as 别名]
# 或者: from cryptography.hazmat.backends.interfaces import HashBackend [as 别名]
def __init__(self, algorithm, length, sharedinfo, backend):

        max_len = algorithm.digest_size * (2 ** 32 - 1)
        if length > max_len:
            raise ValueError(
                "Can not derive keys larger than {0} bits.".format(max_len))
        if not (sharedinfo is None or isinstance(sharedinfo, bytes)):
            raise TypeError("sharedinfo must be bytes.")
        self._algorithm = algorithm
        self._length = length
        self._sharedinfo = sharedinfo

        if not isinstance(backend, HashBackend):
            raise UnsupportedAlgorithm(
                "Backend object does not implement HashBackend.",
                _Reasons.BACKEND_MISSING_INTERFACE
            )
        self._backend = backend
        self._used = False 
开发者ID:aliyun,项目名称:oss-ftp,代码行数:21,代码来源:x963kdf.py

示例3: __init__

# 需要导入模块: from cryptography.hazmat.backends import interfaces [as 别名]
# 或者: from cryptography.hazmat.backends.interfaces import HashBackend [as 别名]
def __init__(self, algorithm, backend, ctx=None):
        if not isinstance(backend, HashBackend):
            raise UnsupportedAlgorithm(
                "Backend object does not implement HashBackend.",
                _Reasons.BACKEND_MISSING_INTERFACE
            )

        if not isinstance(algorithm, HashAlgorithm):
            raise TypeError("Expected instance of hashes.HashAlgorithm.")
        self._algorithm = algorithm

        self._backend = backend

        if ctx is None:
            self._ctx = self._backend.create_hash_ctx(self.algorithm)
        else:
            self._ctx = ctx 
开发者ID:aliyun,项目名称:oss-ftp,代码行数:19,代码来源:hashes.py

示例4: __init__

# 需要导入模块: from cryptography.hazmat.backends import interfaces [as 别名]
# 或者: from cryptography.hazmat.backends.interfaces import HashBackend [as 别名]
def __init__(self, algorithm, length, sharedinfo, backend):

        max_len = algorithm.digest_size * (2 ** 32 - 1)
        if length > max_len:
            raise ValueError(
                "Can not derive keys larger than {} bits.".format(max_len))
        if sharedinfo is not None:
            utils._check_bytes("sharedinfo", sharedinfo)

        self._algorithm = algorithm
        self._length = length
        self._sharedinfo = sharedinfo

        if not isinstance(backend, HashBackend):
            raise UnsupportedAlgorithm(
                "Backend object does not implement HashBackend.",
                _Reasons.BACKEND_MISSING_INTERFACE
            )
        self._backend = backend
        self._used = False 
开发者ID:tp4a,项目名称:teleport,代码行数:22,代码来源:x963kdf.py


注:本文中的cryptography.hazmat.backends.interfaces.HashBackend方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。