Cryptography Stack Exchange

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11

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How to break an unknown ciphertext - transposition of some kind

cryptanalysis transposition-cipher

modified 9 mins ago Maarten Bodewes♦ 59.1k

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1

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24

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AES key vs sector key

aes cbc

answered 1 hour ago SEJPM♦ 31.3k

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8

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Understanding Encryption length calculation and rounds

encryption password-hashing

modified 2 hours ago kelalaka 10.8k

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62

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Why is the Domingo-Ferrer cryptosystem not used in practice?

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modified 2 hours ago fgrieu 85.6k

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2

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13

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Hashing large messages, how does it work?

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modified 2 hours ago AleksanderRas 4,501

1

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1

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11

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Understanding message reversible mapping function in group G

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modified 3 hours ago kelalaka 10.8k

3

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1

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380

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Can multiple public keys lead to the same shared secret in X25519?

elliptic-curves diffie-hellman rfc7748

modified 4 hours ago kelalaka 10.8k

1

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0

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10

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Does a digital signature algorithm exist which has a normal, a blind, an elliptic curve and an elliptic curve blind version?

modified 4 hours ago kelalaka 10.8k

5

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1

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516

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What is the difference between Argon2d and Argon2i?

encryption hash complexity argon2

modified 4 hours ago Patriot 1,301

4

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1

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163

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Lattice-based cryptography prone to side channel attack?

lattice-crypto side-channel-attack

modified 4 hours ago mephisto 2,397

4

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1

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1k

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How secure is my OTP program?

random-number-generator stream-cipher one-time-pad isaac

modified 4 hours ago mephisto 2,397

0

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2

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26

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Is there a way to easily encode a message without a computer on either end?

algorithm-design classical-cipher pen-and-paper

modified 5 hours ago Patriot 1,301

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0

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18

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Do any block cipher encryption functions (or similar functions) exist which are associative to each other and cyclic?

hash block-cipher algorithm-design random-number-generator

modified 5 hours ago Patriot 1,301

1

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0

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30

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Are biases narrowed towards the provenance of hard NP complete problems relevant?

encryption homomorphic-encryption quantum-cryptography

modified 8 hours ago Jossy J. Umezurike 6

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How to break an unknown ciphertext - transposition of some kind

AES key vs sector key

Understanding Encryption length calculation and rounds

Why is the Domingo-Ferrer cryptosystem not used in practice?

Hashing large messages, how does it work?

Understanding message reversible mapping function in group G

Can multiple public keys lead to the same shared secret in X25519?

Does a digital signature algorithm exist which has a normal, a blind, an elliptic curve and an elliptic curve blind version?

What is the difference between Argon2d and Argon2i?

Lattice-based cryptography prone to side channel attack?

How secure is my OTP program?

Is there a way to easily encode a message without a computer on either end?

Do any block cipher encryption functions (or similar functions) exist which are associative to each other and cyclic?

Are biases narrowed towards the provenance of hard NP complete problems relevant?

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