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[PDF] Top 20 A Polynomial-Time Key-Recovery Attack on MQQ Cryptosystems

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A  Polynomial-Time  Key-Recovery  Attack  on  MQQ  Cryptosystems

A Polynomial-Time Key-Recovery Attack on MQQ Cryptosystems

... of MQQ public key cryptosystems using multivari- ate quadratic quasigroups ...These cryptosystems show especially good performance ...the MQQ-SIG signature scheme is the fastest scheme ... See full document

19

A  Key  Recovery  Attack  on  Error  Correcting  Code  Based  a  Lightweight  Security  Protocol

A Key Recovery Attack on Error Correcting Code Based a Lightweight Security Protocol

... three key elements in a typical RFID system: Tags, one or more readers, and a back-end ...same time, they intended to satisfy com- putation and hardware constraints of low-cost RFID tags, without ... See full document

11

A  Generalization  of  the  Rainbow  Band  Separation  Attack   and  its  Applications  to  Multivariate  Schemes

A Generalization of the Rainbow Band Separation Attack and its Applications to Multivariate Schemes

... and MQQ suer even more from missing cross-terms and thus could be attacked the same ...an attack, which is better than the best know HighRank attack on the scheme, and also break all variants of ... See full document

45

Key Aggregate Cryptosystems with Broadcast Aggregate Keys for Data Sharing on the Cloud with Time Bound Key Assignment

Key Aggregate Cryptosystems with Broadcast Aggregate Keys for Data Sharing on the Cloud with Time Bound Key Assignment

... Minimized Key In Character Based-Encryption Character Based-Encryption (CBE), it is a kind of opened key encryption in which the opened key of a customer Can be situated as a character string of the ... See full document

5

Joint  Data   and  Key  Distribution  of  Simple,  Multiple,   and  Multidimensional  Linear  Cryptanalysis  Test  Statistic   and  Its  Impact  to  Data  Complexity

Joint Data and Key Distribution of Simple, Multiple, and Multidimensional Linear Cryptanalysis Test Statistic and Its Impact to Data Complexity

... statistical attack is inversely proportional to the number of plaintexts needed to recover information on the encryption ...the attack, cryptographers aim to provide a good estimate of the data complexity ... See full document

37

Applications  of  Key  Recovery  Cube-attack-like

Applications of Key Recovery Cube-attack-like

... The time complexity of the attack depends on the number of matches we obtain in Step 3. The expected number of matches is determined by several factors, and in particular, it depends on a stronger version ... See full document

20

A  generalized  attack  on  RSA  type  cryptosystems

A generalized attack on RSA type cryptosystems

... a key equation ed − k(p − 1)(q − 1) = ...decryption time are proportional to the bit-length of the public and the private ...decryption time, one may be tempted to use small public exponents or ... See full document

12

A  Refinement  of  ``A  Key-recovery  Attack  on 855-round  Trivium"  From  CRYPTO 2018

A Refinement of ``A Key-recovery Attack on 855-round Trivium" From CRYPTO 2018

... Boolean polynomial of 855-round Trivium ...Boolean polynomial is simplified. Based on this method, a 855-round key-recovery attack on Trivium is ...practical attack on 721-round ... See full document

5

Key-Recovery  Attack  on  the  ASASA  Cryptosystem  with  Expanding  S-boxes

Key-Recovery Attack on the ASASA Cryptosystem with Expanding S-boxes

... k-affine layers and two non-linear polynomial-based S layers. The ASASA scheme with expanding S-boxes, on which we are focusing, involves S-boxes whose out- put is twice as big as their input; 32 perturbation ... See full document

17

Key  Recovery  from  State  Information  of  Sprout:  Application  to  Cryptanalysis   and  Fault  Attack

Key Recovery from State Information of Sprout: Application to Cryptanalysis and Fault Attack

... secret key bits are used during the ...one key bit each time in the round key function, some function of multiple key bits could be ...particular key bit at one round, and may ... See full document

18

Quantum  Key-recovery  Attack  on  Feistel  Structures

Quantum Key-recovery Attack on Feistel Structures

... public key cryptography, but also breaks several secret key schemes in polynomial time, such as Even-Mansour block cipher- s [3, 4] and some widely used modes of operation for authentication ... See full document

8

Adaptive  key  recovery  attacks  on  NTRU-based  somewhat  homomorphic  encryption  schemes

Adaptive key recovery attacks on NTRU-based somewhat homomorphic encryption schemes

... Gentry’s original construction is based on ideal lattices and is naturally implemented us- ing cyclotomic rings. On the other hand, NTRU is a practical lattice-based cryptosystem, also based on cyclotomic rings, that ... See full document

12

Cryptography  from  tensor  problems

Cryptography from tensor problems

... private key, although of course the distribution on instances disables the NP-hardness (this is unavoidable since a trap- door for an NP-hard problem would put NP into P or BPP or BQP, depending on the resources ... See full document

19

A Small Subgroup Attack for Recovering Ephemeral Keys in Chang and Chang Password Key Exchange Protocol

A Small Subgroup Attack for Recovering Ephemeral Keys in Chang and Chang Password Key Exchange Protocol

... authenticated key exchange protocol is an important cryptographic technique in the secure communication ...simple key exchange protocol and claimed the protocol is secure, efficient and ...a key ... See full document

7

Key  Recovery  for  LWE  in  Polynomial  Time

Key Recovery for LWE in Polynomial Time

... Our attack gives an indirect way to measure the effective value of µ in the approximation factor 2 µd of LLL-Babai for q-ary lattices: Because we can predict whether our attack will succeed or fail fairly ... See full document

16

Recovering  short  secret  keys  of  RLCE  in  polynomial  time

Recovering short secret keys of RLCE in polynomial time

... For this reason, there is a recurrent temptation consisting in using codes with a higher decoding capacity for encryption in order to reduce the size of the public key. Many proposals in the last decades involve ... See full document

20

The  Multivariate  Probabilistic  Encryption  Scheme  MQQ-ENC

The Multivariate Probabilistic Encryption Scheme MQQ-ENC

... public key is formed from a bijective transformation by removing some of the ...rank attack was mounted against the Birational Permutation scheme even when one polynomial from the public key ... See full document

19

Key-Recovery  Attacks  on  ASASA

Key-Recovery Attacks on ASASA

... LPN-based attack on the χ ...different attack, dedicated to the χ public-key scheme. This attack exploits the fact that each bit at the output of χ is “almost linear” in the input: indeed the ... See full document

26

A  Key-recovery  Attack  on 855-round  Trivium

A Key-recovery Attack on 855-round Trivium

... a key-recovery attack on Trivium reduced to 855 ...Boolean polynomial over secret key and IV bits and it is hard to find the solution of the secret keys, we propose a novel ... See full document

25

Side  Channel  Power  Analysis  of  an  AES-256  Bootloader

Side Channel Power Analysis of an AES-256 Bootloader

... CPA attack to work on AES-256 requires some modifications to the attack for the second decryption round, as detailed previously in [3] and ...CPA attack to determine the Initialization Vector (IV), ... See full document

6

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