249 reputation
211
bio website masseria.org
location Florida
age 54
visits member for 2 years, 3 months
seen Oct 21 at 17:33

Programming language experience includes: C, COBOL, Java, Fortran, JavaScript

profile for HeatfanJohn on Stack Exchange, a network of free, community-driven Q&A sites


Jul
8
comment When only using one-way hashing, is it possible to tell the number of characters changed between the old and new password?
duh on my part, yes you are correct, the OS did just previously ask for the current password. It must temporarily persist the current password in memory before requesting the new password and then performs the difference checks using plain-text.
Jul
8
comment When only using one-way hashing, is it possible to tell the number of characters changed between the old and new password?
I reworded the title question to better reflect the cryptography related question that I'm trying to get answered.
Jul
8
comment When only using one-way hashing, is it possible to tell the number of characters changed between the old and new password?
Hi @e-sushi, perhaps the wording of my question could be better. My question is trying to answer whether it is possible to tell the number of different characters changed between two passwords when only one-way hashing is being used.
Oct
9
comment Attack by replaying messages
@CodesInChaos Are you referring to CurveCP's use of nonces, aka number used once? I only added this comment because the current highest voted answer gives a similar answer.
Oct
7
comment How to hide bit frequency of the inter-packet delays covert channel?
What type of data are you encoding? Plain text? Are you looking for an encoding scheme for the data to be transmitted to make the variances look more random?
Sep
3
comment implications of SSH server key compromission when authenticating users against a public key
Wouldn't impersonating the server allow a man-in-the-middle attack? Allowing the attacker to inspect every packet? Also, what do you mean by "If SSH doesn't suck"? Just curious. Thanks.