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  • Please add fc382Crypto.bin to your question.
    – Cyrus
    Commented Feb 25 at 2:16
  • 1
    aes-128-cbc is NOT blowfish. Although the blowfish algorithm and the libcrypto implementation support variable keysize, openssl commandline only supports 128-bit (16-byte or 32-hexit) and you don't have such a key -- unless the instructor actually used openssl commandline (incorrectly) with the short key and got the padding but withheld this info from you.
    – dave_thompson_085
    Commented Feb 25 at 3:42
  • @dave_thompson_085 - The key is fine you just have to pad it with zeros, this is obviously homework, not sure what the privacy concerns are though.
    – Ramhound
    Commented Feb 25 at 5:02
  • @Ramhound: unless the encryption was done with openssl commandline, which is not said, there's no reason the key needs to be padded at all.
    – dave_thompson_085
    Commented Feb 28 at 23:10
  • @dave_thompson_085 - I strongly disagree. The instructions for the assignment, said it was encrypted with a openssl command line, and the warning is being thrown which suggests the key wasn't padded. I also have strong negative feelings about helping somebody cheat. Since the author has provided zero feedback, I am inclined to delete my answer, allowing this question caused by zero research on the author's part to be thrown into the void.
    – Ramhound
    Commented Feb 28 at 23:26