Score:0

finding the Key if hmac output, and input are known

mk flag

Assume we have message M, key K, and MAC = hmac-256SHA(M, K).

I wonder if an attacker can figure out the Key K if the attacker knows the Message M and MAC

xin yao avatar
mk flag
Many thanks, this solved my problem
I sit in a Tesla and translated this thread with Ai:

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Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.