mirror of
https://github.com/morgan9e/noiseprotocol
synced 2026-04-14 00:14:05 +09:00
e84db3c232
* Created NoiseBackend class serving as a base for backends
* Refactored NoiseProtocol name parsing
* Refactored existing spec-defined functions into abstract classes.
Implementing classes are connecting crypto primitives to expected
interfaces.
* Refactored existing usage of Cryptography as source of crypto into
"default" backend (along with in-house implementation of X448).
* Provisioned "experimental" backend, it will contain e.g. non-default
crypto algorithms
* Backend can be chosen while creating NoiseConnection, though by
default, the Cryptography backend ("default") is used
Closes #7
39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
from noise.backends.default.ciphers import ChaCha20Cipher, AESGCMCipher
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from noise.backends.default.diffie_hellmans import ED25519, ED448
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from noise.backends.default.hashes import hmac_hash, BLAKE2sHash, BLAKE2bHash, SHA256Hash, SHA512Hash
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from noise.backends.default.keypairs import KeyPair25519, KeyPair448
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from noise.backends.noise_backend import NoiseBackend
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class DefaultNoiseBackend(NoiseBackend):
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"""
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Contains all the crypto methods endorsed by Noise Protocol specification, using Cryptography as backend
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"""
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def __init__(self):
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super(DefaultNoiseBackend, self).__init__()
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self.diffie_hellmans = {
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'25519': ED25519,
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'448': ED448
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}
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self.ciphers = {
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'AESGCM': AESGCMCipher,
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'ChaChaPoly': ChaCha20Cipher
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}
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self.hashes = {
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'BLAKE2s': BLAKE2sHash,
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'BLAKE2b': BLAKE2bHash,
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'SHA256': SHA256Hash,
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'SHA512': SHA512Hash
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}
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self.keypairs = {
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'25519': KeyPair25519,
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'448': KeyPair448
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}
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self.hmac = hmac_hash
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