Reticulum/RNS/Cryptography/Hashes.py

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import importlib
if importlib.util.find_spec('hashlib') != None:
import hashlib
else:
hashlib = None
if hasattr(hashlib, "sha512"):
from hashlib import sha512 as ext_sha512
else:
from .SHA512 import sha512 as ext_sha512
if hasattr(hashlib, "sha256"):
from hashlib import sha256 as ext_sha256
else:
from .SHA256 import sha256 as ext_sha256
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"""
The SHA primitives are abstracted here to allow platform-
aware hardware acceleration in the future. Currently only
uses Python's internal SHA-256 implementation. All SHA-256
calls in RNS end up here.
"""
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def sha256(data):
digest = ext_sha256()
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digest.update(data)
return digest.digest()
def sha512(data):
digest = ext_sha512()
digest.update(data)
return digest.digest()