Cryptography Stack Exchange

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Padding schemes reversal and space efficiency

block-cipher padding

modified Dec 2 at 7:34 forest 2,447

-1

votes

1

answer

67

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What Feistel network block ciphers do not use data-dependent table lookups or modular additions?

block-cipher

modified Dec 1 at 13:03 DannyNiu 997

0

votes

1

answer

87

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What characteristics define a function to be a block cipher

block-cipher random-oracle-model compression-function

modified Nov 28 at 23:54 kelalaka 4,534

1

vote

1

answer

46

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What happens if the plaintext $m1$ from the first block of CBC is known to adversary?

block-cipher cbc

modified Nov 27 at 14:01 Community♦ 1

6

votes

1

answer

2k

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Why are the Davies-Meyer and Miyaguchi-Preneel constructions secure?

hash block-cipher

modified Nov 24 at 7:54 D.W. 29.3k

5

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2

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2k

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Is the GOST block cipher broken?

encryption cryptanalysis block-cipher

modified Nov 17 at 1:41 e-sushi♦ 13.5k

37

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6

answers

28k

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Why is AES resistant to known-plaintext attacks?

aes block-cipher known-plaintext-attack

answered Nov 16 at 4:08 Aadhithya Kannan 16

1

vote

2

answers

73

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DES - encrypt 3 times - DES(DES(DES, k), k'), k) - stronger than 2DES with 2 different keys?

encryption cryptanalysis block-cipher des 3des

modified Nov 15 at 21:09 kelalaka 4,534

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0

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30

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DES twice - with k and then with complementary key?

encryption cryptanalysis block-cipher des

asked Nov 15 at 4:09 caffein 18

67

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9

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92k

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Should I use ECB or CBC encryption mode for my block cipher?

encryption block-cipher modes-of-operation cbc ecb

answered Nov 15 at 1:39 Eiad Alkhayat 11

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1

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41

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Encrypt twice with DES using same key ? $\operatorname{DES}(\operatorname{DES}(x,k), k)$

encryption cryptanalysis block-cipher des

answered Nov 14 at 23:30 poncho 88.9k

6

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1

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2k

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Known Plaintext attack against XTEA?

cryptanalysis block-cipher known-plaintext-attack

modified Nov 14 at 9:24 sahana 1

1

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1

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147

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how to compute the correlation between two binary vectors?

encryption cryptanalysis block-cipher s-boxes

modified Nov 9 at 18:02 Community♦ 1

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Padding schemes reversal and space efficiency

What Feistel network block ciphers do not use data-dependent table lookups or modular additions?

What characteristics define a function to be a block cipher

What happens if the plaintext $m1$ from the first block of CBC is known to adversary?

Why are the Davies-Meyer and Miyaguchi-Preneel constructions secure?

Is the GOST block cipher broken?

Why is AES resistant to known-plaintext attacks?

DES - encrypt 3 times - DES(DES(DES, k), k'), k) - stronger than 2DES with 2 different keys?

DES twice - with k and then with complementary key?

Should I use ECB or CBC encryption mode for my block cipher?

Encrypt twice with DES using same key ? $\operatorname{DES}(\operatorname{DES}(x,k), k)$

Known Plaintext attack against XTEA?

how to compute the correlation between two binary vectors?

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