Question: A programmer has committed the cardinal sin of keystream reuse on a stream cipher. You have come into possession of these two messages ( encrypted
A programmer has committed the cardinal sin of keystream reuse on a stream cipher. You have come into
possession of these two messages encrypted in hex and wish to decrypt them:
ecdfbcadcfafacdeaea
dafbcccdffbfabcfbeb
Explain why keystream reuse is bad
Using the techniques discussed in class on can you recover the plaintext of the two messages? You may
assume that the two messages are both standard ASCII and contain no control characters including null
termination
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