104 lines
3.0 KiB
Python
104 lines
3.0 KiB
Python
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import os
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import yaml
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class Scheme:
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def __init__(self):
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self.type = None
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self.name = None
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self.implementations = []
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def path(self, base='..'):
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return os.path.join(base, 'crypto_' + self.type, self.name)
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@staticmethod
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def by_name(scheme_name):
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for scheme in Scheme.all_schemes():
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if scheme.name == scheme_name:
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return scheme
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raise KeyError()
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@staticmethod
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def all_schemes():
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schemes = []
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schemes.extend(Scheme.all_schemes_of_type('kem'))
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schemes.extend(Scheme.all_schemes_of_type('sign'))
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return schemes
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@staticmethod
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def all_implementations():
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implementations = dict()
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for scheme in Scheme.all_schemes().values():
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implementations.extend(scheme.all_implementations())
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return implementations
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@staticmethod
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def all_schemes_of_type(type: str) -> list:
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schemes = []
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p = os.path.join('..', 'crypto_' + type)
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for d in os.listdir(p):
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if os.path.isdir(os.path.join(p, d)):
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if type == 'kem':
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schemes.append(KEM(d))
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elif type == 'sign':
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schemes.append(Signature(d))
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else:
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assert('Unknown type')
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return schemes
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def metadata(self):
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metafile = os.path.join(self.path(), 'META.yml')
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try:
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with open(metafile, encoding='utf-8') as f:
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metadata = yaml.load(f.read())
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return metadata
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except Exception as e:
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print("Can't open {}: {}".format(metafile, e))
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return None
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class Implementation:
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def __init__(self, scheme, name):
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self.scheme = scheme
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self.name = name
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def path(self, base='..') -> str:
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return os.path.join(self.scheme.path(), self.name)
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@staticmethod
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def by_name(scheme_name, implementation_name):
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scheme = Scheme.by_name(scheme_name)
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for implementation in scheme.implementations:
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if implementation.name == implementation_name:
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return implementation
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raise KeyError()
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@staticmethod
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def all_implementations(scheme: Scheme) -> list:
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implementations = []
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for d in os.listdir(scheme.path()):
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if os.path.isdir(os.path.join(scheme.path(), d)):
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implementations.append(Implementation(scheme, d))
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return implementations
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class KEM(Scheme):
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def __init__(self, name: str):
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self.type = 'kem'
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self.name = name;
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self.implementations = Implementation.all_implementations(self)
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@staticmethod
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def all_kems() -> list:
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return Scheme.all_schemes_of_type('kem')
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class Signature(Scheme):
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def __init__(self, name: str):
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self.type = 'sign'
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self.name = name;
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self.implementations = Implementation.all_implementations(self)
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@staticmethod
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def all_sigs():
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return Scheme.all_schemes_of_type('sig')
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