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I've been working on a forensics challenge , and I'm in the last step , i have an AES CBC 256 encrypted string and i need to decrypt it .. is there's and well known tool , or a script of some kind 'python' or 'C' ?

and if there's other resources to learn about this specefic type of encryption

note : i find a python script for the AES but it doesn't include the CBC "IV"

this is what im trying to decrypt ..

KEY = 7869686966766E6C6F697570756E707100000000000000000000000000000000

IV = 6C7579796E6171726E7371627368616C

Encrypted data: N3xlOTgnywpPupc1VXbP9FbOXb1pK+S+CzQOo4KtqGz/hVMQ6ki6rNoBkKik733j

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  • $\begingroup$ You can use PyCrypto as follows: plaintext = AES.new(key, AES.MODE_CBC, iv).decrypt(ciphertext). $\endgroup$ – yyyyyyy Feb 21 '17 at 14:46
  • $\begingroup$ Have you tried looking on google? extranet.cryptomathic.com/aescalc/index is the fourth link down and I didn't even include CBC in my search terms. $\endgroup$ – Maybe_Factor Feb 22 '17 at 5:46
  • $\begingroup$ i did but its not giving anything meaningful $\endgroup$ – user7451333 Feb 22 '17 at 12:49
  • $\begingroup$ �vSL��V%��Yȓ�PLo��ܩ�ƅL����_�YO����Ho�T_�& $\endgroup$ – user7451333 Feb 22 '17 at 12:49

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