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Results tagged with ctr
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user 43997
Counter Mode (CTR) is an encryption mode, that builds a random-access stream-cipher from a block-cipher.
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IND-CPA security of CTR mode
Let's suppose CTR mode is instantiated such that the input to the block-cipher is $\langle \mathrm{IV}+\mathrm{ctr}\rangle$ instead of $\mathrm{IV}\mathbin\|\langle \mathrm{ctr}\rangle$, where $\langle … Will the mentioned version of CTR encryption scheme be IND-CPA secure against nonce-respecting adversaries? …
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