User AleksanderCH

19 votes

2 answers

3k views

Can neural cryptanalysis be applied to AES?

asked Feb 18, 2019 at 12:34

19 votes

4 answers

3k views

Are encryption algorithms with fixed-point free permutations inherently flawed?

asked Feb 20, 2019 at 15:27

18 votes

1 answer

1k views

Crypto AG (Switzerland) - Which algorithms were used and how did the backdoors work?

asked Feb 12, 2020 at 10:55

10 votes

3 answers

2k views

Homomorphic encryption - Why does addition not imply multiplication?

asked Dec 29, 2018 at 13:57

9 votes

2 answers

2k views

How did law enforcement decrypt messages of ANOM devices?

asked Jun 9, 2021 at 15:56

8 votes

3 answers

936 views

Can Shor's algorithm factor multi-prime numbers?

asked Apr 23, 2019 at 9:30

5 votes

1 answer

125 views

What are the uses of arbitrary length output hashes (other than OAEP)?

asked Mar 1, 2019 at 14:02

4 votes

2 answers

528 views

When does multiple OTP encryption become insecure if new keys are permuted?

asked Mar 11, 2019 at 13:46

4 votes

1 answer

240 views

Is obfuscation always reversable?

asked Jul 10, 2018 at 15:54

4 votes

1 answer

728 views

Is the practice of "security through obscurity" violating Kerckhoffs's second principle?

asked Sep 26, 2018 at 13:51

3 votes

1 answer

970 views

PRNG with a truly random seed?

asked Sep 4, 2018 at 8:38

3 votes

2 answers

366 views

Have there been efforts to prevent length extension attacks of hashing algorithms that are based on the Merkle–Damgård construction?

asked Apr 3, 2019 at 11:33

3 votes

1 answer

3k views

GUIDs as a salt

asked Oct 16, 2018 at 11:27

2 votes

1 answer

121 views

Is there a rule of thumb for ZK protocols?

asked Dec 7, 2018 at 13:38

2 votes

2 answers

265 views

Authentication without decrypting the password?

asked Jan 25, 2019 at 17:35

2 votes

2 answers

248 views

Whatsapp E2EE - Why scanning the QR-code?

asked Sep 7, 2018 at 16:20

2 votes

2 answers

767 views

Optimal bit-change-probability of the avalanche effect for hashes

asked Oct 5, 2018 at 9:27

1 vote

3 answers

1k views

Information-theoretic security [closed]

asked Apr 26, 2018 at 9:15

1 vote

2 answers

1k views

Hashing login and password?

asked May 4, 2018 at 9:19

1 vote

1 answer

118 views

Frequency analysis secure language

asked Sep 8, 2018 at 20:32

1 vote

1 answer

227 views

Is a hashing algorithm considered broken if a collision happens under $2^{n/2}$?

asked Feb 13, 2019 at 15:23

1 vote

1 answer

221 views

Are there any classical proven secure cryptographic algorithms other than OTP? [duplicate]

asked Jun 20, 2019 at 13:52

Stack Exchange Network

22 Questions

Can neural cryptanalysis be applied to AES?

Are encryption algorithms with fixed-point free permutations inherently flawed?

Crypto AG (Switzerland) - Which algorithms were used and how did the backdoors work?

Homomorphic encryption - Why does addition not imply multiplication?

How did law enforcement decrypt messages of ANOM devices?

Can Shor's algorithm factor multi-prime numbers?

What are the uses of arbitrary length output hashes (other than OAEP)?

When does multiple OTP encryption become insecure if new keys are permuted?

Is obfuscation always reversable?

Is the practice of "security through obscurity" violating Kerckhoffs's second principle?

PRNG with a truly random seed?

Have there been efforts to prevent length extension attacks of hashing algorithms that are based on the Merkle–Damgård construction?

GUIDs as a salt

Is there a rule of thumb for ZK protocols?

Authentication without decrypting the password?

Whatsapp E2EE - Why scanning the QR-code?

Optimal bit-change-probability of the avalanche effect for hashes

Information-theoretic security [closed]

Hashing login and password?

Frequency analysis secure language

Is a hashing algorithm considered broken if a collision happens under $2^{n/2}$?

Are there any classical proven secure cryptographic algorithms other than OTP? [duplicate]