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If mac M is defined as M(k,x) = f(k||x) where f is one way function, can M be UNF-CMA secure Mac scheme?

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truncet
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1 answer
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What is meant by software and hardware implementations? How to do it?

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cocomac
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2 answers
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MAC from PRF secure under different restriction

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Marc Ilunga
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Decrypt a ciphertext knowing of a pattern of key repetition

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5 votes
1 answer
112 views

Conformance of Windows Random Number Generator (SP800-90A) with Key Lifecycle Security Requirements of the BSI

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Recursive snarks with a genus-2 no-cycle hyperelliptic curve?

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Vadym Fedyukovych
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Subkeys of multiple generated sets not combineable Shamir Secret Sharing

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Michael
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2 votes
3 answers
475 views

Check if encrypted text is equal without decrypting or doing heavy calculation - AES

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FSDev
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0 answers
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Pseudo random generator notation

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Maarten Bodewes♦
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1 answer
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$\epsilon$ parameter choice in lattice-based schemes

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Gareth Ma
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1 answer
101 views

Post-quantum EU-CMA security from OWF-only

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1 answer
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RSA signature with random padding

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fgrieu♦
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1 vote
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TR-31 Key Exchange Mode of Use

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Jonathan Rosenne
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2 answers
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In textbook RSA with low public exponent, how big does a random message needs to be?

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