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@ -63,7 +63,7 @@
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For if the block size is bigger than one we can say
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$$H(m)=E(m)_{\text{Last Block}}$$
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$$E(m)=E(K, m)$$
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$$\exists a,b,c,d : m = a||b \and m' = c||d$$
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$$\exists a,b,c,d : m = a||b \land m' = c||d$$
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where a,b,c,d are the size of one block
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$$H(m)=E(b \oplus E(a \oplus IV)) = C_1$$
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$$H(m')=E(d \oplus E(c \oplus IV)) = C_2$$
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@ -72,7 +72,7 @@
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with:
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$$a \ne b \ne c \ne d$$
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therefore
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$$H(m)=H(m') \and m\ne m'$$
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$$H(m)=H(m') \land m\ne m'$$
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