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Jun
24
reviewed Approve What prime lengths are used for RSA?
Jun
24
reviewed Approve How does knowing the factorization of N can help to obtain the secret?
Jun
24
reviewed Leave Open what are the most common stream ciphers algorithms?
Jun
23
comment what are the most common stream ciphers algorithms?
Salsa20 is relatively common as well, due to its use in NaCl and its derivatives.
Jun
23
reviewed Close What is the danger if a non-prime is chosen for RSA?
Jun
23
comment what are the most common stream ciphers algorithms?
AES in CTR mode.
Jun
23
revised On Proving That a Primitive Does Not Exist
edited tags
Jun
22
reviewed Leave Open Attack for RSA 1024 bit with Low Public Exponent
Jun
22
reviewed Close Which symmetric cipher is best for studying?
Jun
22
reviewed Approve ECC vs RSA: how to compare key sizes?
Jun
22
reviewed No Action Needed How is wpa2 authentication structured
Jun
22
reviewed No Action Needed Attack for RSA 1024 bit with Low Public Exponent
Jun
22
comment RSA: How effective is this keypair-trash attack
In the duplicate I already wrote that there are $2^{500}$ primes relevant for 1024 bit RSA which has a security of about 80 bits against GNFS. What more do you want? An illustration of how unimaginably huge $2^{500}$ is?
Jun
22
comment How to determine the exponent when using RSA
Similar question RSA Key generation: How is multiplicative inverse computed?
Jun
22
comment How to determine the exponent when using RSA
1) You need multiply with the modular multiplicative inverse instead of dividing. 2) $\mathrm{GCD}(e, \phi) \neq 1$, so your choice of $e$ is incompatible with your choice of $q$.
Jun
22
comment What is more efficient, pairing based cryptography or non pairing based cryptography?
@Nubila You didn't even link the paper you're talking about. You didn't give enough context. Your question isn't answerable like that.
Jun
22
comment What is more efficient, pairing based cryptography or non pairing based cryptography?
@Nubila I just posted two schemes that require pairings, what more do you want?
Jun
22
revised What is more efficient, pairing based cryptography or non pairing based cryptography?
edited tags
Jun
22
comment RSA: How effective is this keypair-trash attack
How many universes are you willing to turn into databases in order to hold this data? 1024 bit RSA keys are already borderline breakable, yet a database big enough to contain even a tiny fraction of all relevant prime factors (not even the keys themselves, which are far more numerous) would exceed a single universe.
Jun
22
reviewed Leave Open What is more efficient, pairing based cryptography or non pairing based cryptography?