45 lines
1.5 KiB
Python
45 lines
1.5 KiB
Python
import base64, binascii
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import unpaddedbase32
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import nacl.encoding, nacl.signing, nacl.exceptions
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from onionrutils import bytesconverter
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from onionrutils import mnemonickeys
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import logger
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def ed_sign(data, key, encodeResult=False):
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'''Ed25519 sign data'''
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key = unpaddedbase32.repad(bytesconverter.str_to_bytes(key))
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try:
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data = data.encode()
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except AttributeError:
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pass
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key = nacl.signing.SigningKey(seed=key, encoder=nacl.encoding.Base32Encoder)
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retData = ''
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if encodeResult:
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retData = key.sign(data, encoder=nacl.encoding.Base64Encoder).signature.decode() # .encode() is not the same as nacl.encoding
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else:
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retData = key.sign(data).signature
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return retData
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def ed_verify(data, key, sig, encodedData=True):
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'''Verify signed data (combined in nacl) to an ed25519 key'''
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key = unpaddedbase32.repad(bytesconverter.str_to_bytes(key))
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try:
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key = nacl.signing.VerifyKey(key=key, encoder=nacl.encoding.Base32Encoder)
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except nacl.exceptions.ValueError:
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return False
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except binascii.Error:
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logger.warn('Could not load key for verification, invalid padding')
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return False
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retData = False
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sig = base64.b64decode(sig)
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try:
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data = data.encode()
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except AttributeError:
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pass
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try:
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retData = key.verify(data, sig) # .encode() is not the same as nacl.encoding
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except nacl.exceptions.BadSignatureError:
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pass
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return retData
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