Error "module 'Crypto.Cipher.AES' has no attribute 'MODE_CCM'" pops up , in sqsQueue.py when subscribing to RDP newsAlerts
Curable by 'pip install pycryptodomex', and amending the sqsQueue.py as:
10: from Crypto.Cipher import AES
to
10: from Cryptodome.Cipher import AES
Could you please adjust the https://developers.refinitiv.com/refinitiv-data-platform/refinitiv-data-platform-apis/downloads "Quickstart and Python tutorials source code" accourdingly.
Or recommend an alternative solution.
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Thanks,
AHS
pycryptodome was chosen since it is a fork of popular PyCrypto and a drop in replacement. It does not expose the module as Cryptodome.Cipher but as Crypto.Cipher.
Can you please elaborate your question - why do you need CCM? Both the News and Research alerts are encrypted using AES-GCM. The tutorial and the comment in the sample file state that it depends on pycryptodome module for decryption.
Does that not work? Thanks.
Indeed
The error I get under default anaconda-packaged pycrypto 2.6.1 , on both linux and windows, since late 2019, is
AttributeError: module 'Crypto.Cipher.AES' has no attribute 'MODE_GCM'
from Crypto.Cipher import AES (this import is used in your sample code)
dir(AES)
Out[53]:
['AESCipher',
'MODE_CBC',
'MODE_CFB',
'MODE_CTR',
'MODE_ECB',
'MODE_OFB',
'MODE_OPENPGP',
'MODE_PGP',
'_AES',
...
So I need to pip install pycryptodome (or pycryptodomex)
from Cryptodome.Cipher import AES (need to change the import to this, i.e. Cryptodome)
dir(AES)
Out[55]:
['MODE_CBC',
'MODE_CCM',
'MODE_CFB',
'MODE_CTR',
'MODE_EAX',
'MODE_ECB',
'MODE_GCM',
...
Well, the tutorial and the sample explicitly state that it uses pycryptodome.
Then you can be as explicit, and have
from Cryptodome.Cipher import AES (rather than from Crypto.Cipher import AES )
