本文整理汇总了Python中sage.rings.finite_rings.finite_field_constructor.FiniteField.cardinality方法的典型用法代码示例。如果您正苦于以下问题:Python FiniteField.cardinality方法的具体用法?Python FiniteField.cardinality怎么用?Python FiniteField.cardinality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类sage.rings.finite_rings.finite_field_constructor.FiniteField
的用法示例。
在下文中一共展示了FiniteField.cardinality方法的2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 sage.rings.finite_rings.finite_field_constructor import FiniteField [as 别名]
# 或者: from sage.rings.finite_rings.finite_field_constructor.FiniteField import cardinality [as 别名]
def __init__(self, field = None):
"""
Create a linear feedback shift cryptosystem.
INPUT: A string monoid over a binary alphabet.
OUTPUT:
EXAMPLES::
sage: E = LFSRCryptosystem(FiniteField(2))
sage: E
LFSR cryptosystem over Finite Field of size 2
TESTS::
sage: E = LFSRCryptosystem(FiniteField(2))
sage: E == loads(dumps(E))
True
TODO: Implement LFSR cryptosystem for arbitrary rings. The current
implementation is limited to the finite field of 2 elements only
because of the dependence on binary strings.
"""
if field is None:
field = FiniteField(2)
if field.cardinality() != 2:
raise NotImplementedError("Not yet implemented.")
S = BinaryStrings()
P = PolynomialRing(FiniteField(2),'x')
SymmetricKeyCryptosystem.__init__(self, S, S, None)
self._field = field
示例2: __init__
# 需要导入模块: from sage.rings.finite_rings.finite_field_constructor import FiniteField [as 别名]
# 或者: from sage.rings.finite_rings.finite_field_constructor.FiniteField import cardinality [as 别名]
def __init__(self, field = None):
"""
Create a shrinking generator cryptosystem.
INPUT: A string monoid over a binary alphabet.
OUTPUT:
EXAMPLES::
sage: E = ShrinkingGeneratorCryptosystem()
sage: E
Shrinking generator cryptosystem over Finite Field of size 2
"""
if field is None:
field = FiniteField(2)
if field.cardinality() != 2:
raise NotImplementedError("Not yet implemented.")
S = BinaryStrings()
SymmetricKeyCryptosystem.__init__(self, S, S, None)
self._field = field