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1

vote

1

answer

13

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PKCS RSA - Why do we need encoding

rsa signature encoding pkcs1

modified 1 hour ago Modal Nest 1,226

0

votes

0

answers

14

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Corner cases of addition on short Weierstrass elliptic curves

elliptic-curves

asked 3 hours ago Gaganov Victor 43

2

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2

answers

81

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Must a line hitting two points on the elliptic curve over a finite field hit another point by continuation?

elliptic-curves finite-field

modified 4 hours ago fgrieu♦ 108k

4

votes

1

answer

97

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Why was Rijndael the only cipher to have a variable number of rounds?

aes nist rijndael

answered 8 hours ago poncho 115k

1

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0

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20

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Computing $g^y\bmod p$ from $g^{y^2}\bmod p$ if Diffie-Hellman is compromised?

diffie-hellman discrete-logarithm

asked 8 hours ago 1.. 685

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0

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8

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plaintext decrypted form a cipher text using key = 3 in Caesar Cipher and that plain text with the following ciphertext to get the key

encryption decryption

asked 8 hours ago user86282 1

2

votes

1

answer

66

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Decrypting message as MSB in regev scheme

public-key homomorphic-encryption lwe

modified 15 hours ago kelalaka 29k

0

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1

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62

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Breaking Elgamal private key

elliptic-curves discrete-logarithm elgamal-encryption

modified 15 hours ago Community♦ 1

1

vote

1

answer

50

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Can I use ChaCha20-Poly1305 as my KDF?

authenticated-encryption salt nonce chacha poly1305

modified 15 hours ago automatictester 387

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0

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27

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Why in the Fiat-Shamir heuristc for proving the knowledge of a discrete logarithm an hard to invert function has to be used to create the challenge?

zero-knowledge-proofs fiat-shamir

modified 16 hours ago Lorenzo 67

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0

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19

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Constant Time algorithms for $\mathbb{Z}/m\mathbb{Z}$, $\mathbb{Z}/m\mathbb{Z}[x]$, and $\mathbb{Z}/m\mathbb{Z}[x] / (f(x))$?

reference-request finite-field side-channel-attack

asked 16 hours ago Mark 3,638

0

votes

1

answer

45

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AES-128 or AES-256 with 18 bytes of key storage?

aes

modified 17 hours ago Maarten Bodewes♦ 75.9k

0

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0

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18

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Pedersen commitment on binary field $GF(2^n)$

finite-field

modified 18 hours ago Modal Nest 1,226

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2

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50

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Can $y^2=x^3-x+1$ elliptic curve with $GF(3^m)$ where $m=97$ be used for Diffie Hellman key exchange?

elliptic-curves diffie-hellman

modified 18 hours ago kelalaka 29k

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