humanityANDpeace

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age 30
visits member for 4 months
seen Apr 11 at 5:51

Lucky those who have knowledge to help and assist others :)


Mar
18
comment Are IVs and salts the same and usable for each other uses?
Even though accepted answer below being "No.", I am happy this was asked. I think while different in the bigger picture, the function of either the salt and the iv can sometimes conflate. In both cases the added randomness allows that two copies of the same original data yield different outcomes. I wished this aspect was answered a bit more. I guess the answer should be "No. not the same, but Yes similar purpose".
Mar
16
comment Difference RSA keypair creation openSSL and openPGP?
fantastic answer, which really helped me to understand why with a good estimation the difference of 256 vs 2400 bits does rather not impact the safety. I really learned here! thank you much!
Mar
16
awarded  Student
Mar
16
asked Difference RSA keypair creation openSSL and openPGP?
Mar
16
comment Good entropy source for generating openssl keys
It would be very interesting if one answer to this question here would also enlighten where the random bytes are used in the RSA key creation process?
Mar
16
comment Good entropy source for generating openssl keys
Above answers suggest that data is read from /dev/urandom which exhausts and then uses a PNRG to continue. In (this eustion](unix.stackexchange.com/q/119967/24394) I generated 2048 RSA using openssl and it only ever reads 32bytes. 32bytes do not drain urandom. 32bytes seesm too little.
Mar
16
awarded  Informed
Mar
16
comment What to watch for with openssl generating weak keys? (low entropy)
Thanks for the hint with cat /proc/sys/kernel/random/entropy_avail called in several times will reduce the entropy_avail. This is because of the ASLR for the cat process, right?
Mar
16
awarded  Supporter