Question
a.
The program may contain a back door that would allow the author to easily decrypt any file created by the program
b.
The program may be poorly written and employ some kind of a home-made, trivial encryption algorithm
c.
The program may incorrectly use a strong, industry-standard encryption algorithm in a way that compromises the security of the encrypted files
d.
All of the above
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Q. What is the risk of relying solely on the author's guarantees regarding the security level of a program like Cryptex?
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