Danger

Nothing here should be used for any security purposes.

  • If you need cryptographic tools in a Python environment use pyca or PyNaCl.

  • If you need efficient and reliable abstract math utilities in a Python-like environment consider using SageMath.

Types#

Imported with:

import toy_crypto.types

Helpful(?) type declarations and guards.

These are intended to make things easier for me, the author (jpgoldberg). They are not carefully thought out. This module is probably the least stable of any of these unstable modules.

toy_crypto.types.Byte#

And int representing a single byte.

Currently implemented as a type alias. As a consequence, type checking is not going to identify cases where an int out of the range of a byte is used.

class toy_crypto.types.PositiveInt#

Positive integer.

alias of int

class toy_crypto.types.Prob#

Probability: A float between 0.0 and 1.0

alias of float

protocol toy_crypto.types.SupportsBool[source]#

typing.Protocol.

This protocol is runtime checkable.

Classes that implement this protocol must have the following methods / attributes:

__bool__() → bool[source]#
Return type:

bool

toy_crypto.types.is_byte(val: Any) → bool[source]#

True iff val is int s.t. 0 <= val < 256.

Parameters:

val (Any)

Return type:

bool

toy_crypto.types.is_positive_int(val: Any) → TypeGuard[PositiveInt][source]#

true if val is a float, s.t. 0.0 <= val <= 1.0

Parameters:

val (Any)

Return type:

TypeGuard[NewType(PositiveInt, int)]

toy_crypto.types.is_prob(val: Any) → TypeGuard[Prob][source]#

true if val is a float, s.t. 0.0 <= va <= 1.0

Parameters:

val (Any)

Return type:

TypeGuard[NewType(Prob, float)]