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Results tagged with length-extension
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user 112962
A length extension attack on a hash or message authentication code function, which allows extra information to be added to the input message without changing the output value.
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How could a bad actor efficiently manipulate severely truncated HMAC-based RNG outputs using...
I have observed an RNG implementation using an HMAC with SHA-256 that takes serverSeed, clientSeed, nonce, and cursor as inputs. For the specific scenario, the cursor remains zero. The key detail is t …
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