Announcer - Badge - Cryptography Stack Exchange

Announcer

Share a link to a post later visited by 25 unique IP addresses. This badge can be awarded multiple times.

e-sushi

17.6k12 gold badges80 silver badges223 bronze badges

earned this badge 96 times.

Can I construct a feasible stream cipher out of HMAC and a secure hash algorithm?

Awarded Jan 10 at 19:36

How cryptographically secure was the original WW2 Enigma machine, from a modern viewpoint?

Awarded Jan 10 at 8:05

Awarded Dec 16, 2022 at 22:34

How much entropy is lost if 1 character is fixed in HMAC SHA-512?

Awarded Dec 12, 2022 at 0:41

Desirable S-box properties

Awarded Oct 9, 2022 at 15:11

What is the purpose of the "Explicit Nonce" in TLS for AES-GCM and AES-CCM?

Awarded Oct 6, 2022 at 16:32

Building a stream-cipher out of a hash function?

Awarded Jun 3, 2022 at 18:02

S-box design criteria and random sboxes

Awarded Apr 6, 2022 at 1:15

Deterministically combine more than one source of entropy

Awarded Feb 21, 2022 at 4:56

Risk of appending secret salt to plaintext prior to RSA encryption?

Awarded Jul 12, 2021 at 14:08

Do the Syllae algorithm and Malaysian cipher from Rubicon exist?

Awarded Jul 12, 2021 at 4:20

Do Quantum Key Distribution and Physical Unclonable Functions combine, and how?

Awarded Jul 3, 2021 at 23:10

Is Curve25519-java secure?

Awarded Nov 28, 2020 at 18:17

Is it OK to use a hash of the key as nonce for AES GCM?

Awarded Nov 28, 2020 at 18:17

Multiple users getting access to same (secret) encryption key on a single computer?

Awarded Nov 28, 2020 at 14:51

Mathematical formula for switching the key for OTP?

Awarded Jun 18, 2020 at 0:36

Difference between Hardware implemented algorithm and software implemented one?

Awarded Apr 23, 2020 at 22:56

Why is plain-hash-then-encrypt not a secure MAC?

Awarded Mar 4, 2020 at 15:00

Kerckhoffs’ principles – Why should I make my cipher public?

Awarded Dec 13, 2019 at 18:50

Factorization algorithm

Awarded Dec 13, 2019 at 18:50

What is the difference between CSPRNG and PRNG?

Awarded Dec 13, 2019 at 18:50

Did non-military cryptography appear in the 50's and 60's only due to NSA leaks?

Awarded Dec 12, 2019 at 22:20

Kerckhoffs’ principles – Why should I make my cipher public?

Awarded Dec 12, 2019 at 22:20

Can I dynamically calculate an appropriate number of iterations for PBKDF2 based on the system time, rather than using a fixed value?

Awarded Dec 12, 2019 at 22:20

Any benefit to writing a message as a mix of 2 languages before encryption?

Awarded Dec 12, 2019 at 22:20

Taking advantage of one-time pad key reuse?

Awarded Dec 12, 2019 at 22:20

How is the MD2 hash function S-table constructed from Pi?

Awarded Dec 12, 2019 at 22:20

What tests can I do to ensure my random number generator is working correctly?

Awarded Dec 12, 2019 at 22:20

What is the difference between CSPRNG and PRNG?

Awarded Dec 12, 2019 at 22:20

Is every pseudorandom generator a one way function?

Awarded Dec 12, 2019 at 22:20

Does adding more characters to the Enigma rotors improve crypto strength?

Awarded Dec 12, 2019 at 22:20

Does a Vigenère cipher with SHA-512 and a little foresight turn into a one-time pad? How safe can it be?

Awarded Dec 12, 2019 at 22:20

Factorization algorithm

Awarded Dec 12, 2019 at 22:20

Using hash for one time pad key

Awarded Nov 28, 2019 at 8:05

Schnorr protocol: how does malicious verifier win?

Awarded Oct 23, 2019 at 6:10

How to do a literature search

Awarded Aug 3, 2019 at 22:25

What algorithm would give the shortest ciphertext for very short plaintexts?

Awarded Jul 10, 2019 at 7:55

How hard is the Solitaire cipher to crack?

Awarded May 19, 2019 at 0:00

What are the implications of the new alleged key recovery attack preprint on SIMON?

Awarded May 12, 2019 at 0:30

Prove that a function is PRF?

Awarded May 10, 2019 at 7:35

BOOLEAN FUNCTIONS: generate a function $f: \{0, 1\}^n \rightarrow \{0, 1\}$ from a $n \times n$ S-Box

Awarded Apr 4, 2019 at 9:40

What are the requirements of a nonce?

Awarded Feb 16, 2019 at 0:55

Would it be possible to generate the original data from a SHA-512 checksum?

Awarded Dec 18, 2018 at 10:15

Is Checksum to file back decoding possible?

Awarded Nov 7, 2018 at 8:55

Why is triple-DES using three different keys vulnerable to a meet-in-the-middle-attack?

Awarded Oct 8, 2018 at 23:10

Simple digital signature example with number

Awarded Aug 3, 2018 at 20:45

What are the differences Between “White-Box Cryptography” and “Code Obfuscation”?

Awarded Aug 2, 2018 at 10:35

Is the software that uses PGP broken, or is it PGP itself?

Awarded May 17, 2018 at 18:21

Difference between Hardware implemented algorithm and software implemented one?

Awarded May 5, 2018 at 11:32

What is the G function of FIPS-186-2?

Awarded Apr 13, 2018 at 3:02

Is there a difference between PRF and a hash function?

Awarded Mar 21, 2018 at 18:04

How can I prove/disprove that a construction yields a secure PRG?

Awarded Feb 14, 2018 at 22:42

Is there a standard for OpenSSL-interoperable AES encryption?

Awarded Sep 2, 2017 at 12:36

Would it be secure to use random numbers from random.org in a cryptographic solution?

Awarded Jul 31, 2017 at 18:11

When to use /dev/random over /dev/urandom in Linux

Awarded Jul 21, 2017 at 16:03

Is AES really used for Top Secret stuff?

Awarded Apr 13, 2017 at 22:26

Key Distribution vs Key Management?

Awarded Dec 26, 2016 at 5:41

Can I use PBKDF2 as a stream cipher?

Awarded Dec 26, 2016 at 3:05

Is password-based AES encryption secure at all?

Awarded Dec 26, 2016 at 1:41

Can we design a public-key infrastructure without certificate authorities?

Awarded Dec 24, 2016 at 2:31

2 Next

Others with this badge