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Jun
27
reviewed Close Is algorithm with more than $2^{word size}$ words secure?
Jun
27
comment Is algorithm with more than $2^{word size}$ words secure?
Do you assume that the wordsize is half the blocksize?
Jun
26
comment HMAC definition by using only one key
@SEJPM I don't have any plans for writing an answer to this question.
Jun
25
reviewed Close Why is the public/private key length used in libsodium so much shorter than needed for RSA
Jun
25
reviewed Leave Open Why recently Edward curve formulas being developed that deviates from unification?
Jun
25
revised Why is HMAC-SHA1 still considered secure?
added 30 characters in body
Jun
25
comment Why is HMAC-SHA1 still considered secure?
@user93353 Depends on what you want to achieve. Of course no unkeyed hash is a MAC.
Jun
25
comment Why is HMAC-SHA1 still considered secure?
@user93353 Like I said, the security of HMAC-SHA1 depends on the unknown key. If there is no key or it is known to the attacker, the collisions in SHA1 become a threat. But SHA1 should rarely be used in designs, since there are better alternatives available.
Jun
25
reviewed No Action Needed Why in Android kernel CSPRNG state is saved?
Jun
25
reviewed Reviewed If you have a file and XOR every bit with a random bit, can you extract any information?
Jun
25
comment Why is HMAC-SHA1 still considered secure?
Should we close this as a duplicate of Is HMAC-MD5 considered secure for authenticating encrypted data?? While this question is about SHA1, not MD5, the answer is nearly the same.
Jun
25
answered Why is HMAC-SHA1 still considered secure?
Jun
25
awarded  Constituent
Jun
24
awarded  Reviewer
Jun
24
reviewed Approve Are factorization algorithms parallelizable?
Jun
24
reviewed Approve What prime lengths are used for RSA?
Jun
24
reviewed Approve How does knowing the factorization of N 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?