User curious - Cryptography Stack Exchange

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Secure order preserving hash function

hash order-preserving

apr 29 at 18:18 Ilmari Karonen 6,291

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1

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73

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Why unit vectors should be encrypted bit per bit in that case?

encryption homomorphic-encryption

apr 12 at 4:03 D.W. 8,032

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1

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115

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How to compute the dot product on encrypted values?

encryption homomorphic-encryption

mar 22 at 9:35 D.W. 8,032

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96

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Is there an efficient way to hide the encrypted plaintext length with a block cipher?

block-cipher modes-of-operation padding

mar 13 at 22:17 Paŭlo Ebermann♦ 9,765

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2

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162

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Is SHA-1 still practical secure under specific scenarios?

hash hash-collision sha1

feb 28 at 9:04 curious 523

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143

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Which one is fastest? Karatsuba or Montgomery multiplication?

algorithm-design

feb 25 at 14:12 fgrieu 9,939

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236

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How does the cyclic attack on RSA work?

rsa

feb 14 at 22:17 Paŭlo Ebermann♦ 9,765

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359

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Why is OCB-AES mode not becoming a standard for authenticated encryption?

aes authenticated-encryption ocb

feb 14 at 15:38 wu7 33

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100

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What are the differences between proofs based on simulation and proofs based on games?

provable-security

jan 29 at 4:45 Mayank Varia 126

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2

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242

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Where i can find an AES implementation in python?

aes implementation

jan 21 at 17:17 B-Con 2,174

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287

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Why the following attack in common modulus RSA works?

rsa public-key

dec 20 at 21:23 poncho 14.6k

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182

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Is there any semantic difference between predicate encryption and functional encryption?

predicate-encryption functional-encryption identity-based-encryption attribute-encryption

dec 18 at 15:53 mikeazo♦ 7,595

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75

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Does a break in a collision resistance property of a hash function by definition implies an attack at the first pre-image attack?

hash hash-collision

nov 19 at 14:42 CodesInChaos 5,964

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4

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123

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Why does OAEP have 2 rounds with 2 random oracles?

rsa padding

nov 16 at 21:37 David Cash 626

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2

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153

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Subgroups generators with respect to group generators of composite order

group-theory

oct 28 at 23:56 curious 523

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93

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Using pairings to verify an extended euclidean relation without leaking the values?

pairings

oct 19 at 18:12 bob 772

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168

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What's the main difference between Pohlig-Hellman and RSA?

rsa public-key

oct 10 at 18:46 fgrieu 9,939

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340

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What's is the main difference between a key, an IV and a nonce?

encryption keys initialization-vector cipher

oct 5 at 15:20 B-Con 2,174

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159

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when do we need composite order groups for bilinear maps and when prime order?

group-theory pairings

sep 28 at 13:50 Mikero 557

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77

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why $e(g,g)^N=1$ in bilinear pairings holds?

pairings

sep 27 at 12:33 Conrado PLG 700

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122

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How to plot the distribution of a ciphertext?

stream-cipher cipher

sep 21 at 11:41 mikeazo♦ 7,595

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131

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Why pairing based crypto is suitable for some particular cryptographic primitives?

pairings

aug 28 at 15:10 Mikero 557

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113

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What is the advantage of an attacker over breaking a 4 digits PIN?

passwords brute-force-attack

jun 27 at 10:32 Maeher 950

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112

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Are there any differences between PIR, oblivious transfer and differential privacy?

oblivious-transfer

jun 18 '12 at 20:44 Paŭlo Ebermann♦ 9,765

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143

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Where can i find relative software for differential cryptanalysis?

cryptanalysis linear-cryptanalysis

jun 14 '12 at 7:24 cryptopathe 547

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157

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How hard is to find the operators of an addition knowing the sum of them?

cryptanalysis algorithm-design

jun 9 '12 at 10:19 Maeher 950

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73

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Is this a secure multiparty protocol?

multiparty-computation

may 23 '12 at 20:19 curious 523

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3

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When to use RSA and when ElGamal asymmetric encryption

public-key rsa elgamal

jan 18 '12 at 8:09 Antony Vennard 2,492

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112

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How to control the output of a hash function to output to specific data according to similarity?

hash

dec 12 '11 at 17:25 poncho 14.6k

curious

29 Questions