Following the notation seen in class, we have a block cipher that is chained in this way: = Pe XOR ECCPe XOR IV), K) C - P, XOR EC(P: XOR ), K) - P2 XOR ECCP: XOR C), K) %3D %3D Would it be suitable...

Following the notation seen in class, we have a block cipher that is chained in this way:<br>= Pe XOR ECCPe XOR IV), K)<br>C - P, XOR EC(P: XOR ), K)<br>- P2 XOR ECCP: XOR C), K)<br>%3D<br>%3D<br>Would it be suitable to be used as MAC (Message Authentication Code)?<br>O No, because you cannot compute the CBC residue<br>O It depends by the value IV<br>Yes<br>O No<br>

Extracted text: Following the notation seen in class, we have a block cipher that is chained in this way: = Pe XOR ECCPe XOR IV), K) C - P, XOR EC(P: XOR ), K) - P2 XOR ECCP: XOR C), K) %3D %3D Would it be suitable to be used as MAC (Message Authentication Code)? O No, because you cannot compute the CBC residue O It depends by the value IV Yes O No

Jun 08, 2022

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Following the notation seen in class, we have a block cipher that is chained in this way: = Pe XOR ECCPe XOR IV), K) C - P, XOR EC(P: XOR ), K) - P2 XOR ECCP: XOR C), K) %3D %3D Would it be suitable...

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