Question: Isitpossiblethatthereisaciphertextc in CsuchthatPr [ C 1 = c ] = 0 andPr [ C 2 = c ] > 0 ? If yes, give an

Isitpossiblethatthereisaciphertextc in CsuchthatPr

[

1 =

] = 0

andPr

[

2 =

] > 0 ?

If yes, give an example of a specific encryption scheme that is perfectly secret and for which the above holds. If not, prove that for any encryption scheme that is perfectly secret, the above cannot hold.

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