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Design flaws when designing a MAC-function

hash block-cipher mac

modified Aug 6 at 20:06 Community♦ 1

3

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1

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69

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Good key update algorithms for key evolving schemes

hash block-cipher key-exchange key-derivation pseudo-random-function

modified Aug 3 at 14:25 kelalaka 20.4k

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“16-bit DES encryption algorithm”

block-cipher des key-size

asked Jul 31 at 8:07 herald4 1

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102

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Is there any cryptographic scheme with block size more than 128 bit

block-cipher keys key-size blocksize

answered Jul 28 at 14:43 Fractalic 473

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53

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Are the Serpent Test Vectors incorrect?

block-cipher test-vectors serpent

answered Jul 26 at 21:14 toothandsticks 111

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How many repetition in Ciphertext-Only-Attack?

block-cipher brute-force-attack complexity decryption ciphertext-only-attack

asked Jul 23 at 8:22 sttc1998 1

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185

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What will be appropriate AES padding characters?

aes block-cipher

modified Jul 22 at 12:06 Community♦ 1

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Can repeatedly encrypting a message with a secure cipher ever produce the original input like what happens in ROT13?

encryption aes block-cipher stream-cipher chacha

answered Jul 21 at 16:24 Aman Grewal 577

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how to Design an AES like block cipher with block length and key length equal to 64 bits

encryption aes block-cipher

asked Jul 18 at 7:24 merin 1

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442

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Cracking a key using a combination of partial keys

cryptanalysis block-cipher keys entropy side-channel-attack

modified Jul 14 at 17:03 Community♦ 1

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What is the difference between key size and block size (for AES)?

aes block-cipher algorithm-design keys terminology

modified Jul 13 at 23:31 Marcelo Fornet 103

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RCON for AES 192 and 256

aes block-cipher keys

modified Jul 6 at 12:43 kelalaka 20.4k

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Is $f_N$ in this hash function is Matyas-Meyer-Oseas scheme?

hash block-cipher merkle-damgaard

modified Jul 2 at 16:55 kelalaka 20.4k

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Do ciphers with a key size of 64 bits still have use under very limited attack models?

encryption block-cipher key-size

modified Jun 28 at 11:52 Maarten Bodewes♦ 72.5k

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