592 reputation
28
bio website crypto.junod.info
location Switzerland
age
visits member for 1 year, 10 months
seen Mar 31 at 14:12

I'm a cryptographer, a former Pay-TV industry worker bee, and I currently work as a professor of information security in a university of applied sciences somewhere in the french-speaking part of Switzerland.

My main scientific interests are related to cryptography and cryptanalysis, (especially to the design and cryptanalysis of symmetrical cryptographic primitives), industrial cryptography, resistance to grey- and white-box adversaries, software security, OS security and ethical hacking.


Jan
7
awarded  Critic
Dec
30
awarded  Nice Answer
Nov
10
awarded  Enlightened
Nov
10
awarded  Nice Answer
Jun
7
awarded  Yearling
Mar
24
comment How to efficiently generate a stream of independent, but biased random bits?
Hi Paul! Many thanks for your answer ! My scenario is somewhat very-high-speed and hardware-contrived :-) More to come ...
Mar
24
accepted How to efficiently generate a stream of independent, but biased random bits?
Mar
11
comment What do the magic numbers 0x5c and 0x36 in the opad/ipad calc in HMAC do?
Obviously, using a single constant would have fitted the security proof; I don't know why they chose two.
Feb
27
comment How to efficiently generate a stream of independent, but biased random bits?
Using a TRNG or a CPRNG for the initial source of randomness is out of scope for my question. Thank you for your proposal. Still, you decimate the initial source by a factor of two, while we could expect to ... expand the throughput in the best case!
Feb
27
answered Generate an insecure public / private key pair
Feb
27
asked How to efficiently generate a stream of independent, but biased random bits?
Jun
26
answered How does the cyclic attack on RSA work?
Jun
22
answered Is there a way to compare the 923 bit pairing based key with RSA or AES, etc
Jun
21
revised What is the difference between known-plaintext attack and chosen-plaintext attack?
Did a bit of typo and spelling correction.
Jun
21
suggested suggested edit on What is the difference between known-plaintext attack and chosen-plaintext attack?
Jun
21
answered What do the magic numbers 0x5c and 0x36 in the opad/ipad calc in HMAC do?
Jun
20
comment Regarding matsui's Paper on Linear Cryptanalysis of DES
I have corrected and expanded my answer, hope this is more clear for you now :-)
Jun
20
awarded  Editor
Jun
20
revised Regarding matsui's Paper on Linear Cryptanalysis of DES
Corrected the mask, and explained more deeply how one can derive the linear expression.
Jun
19
answered Regarding matsui's Paper on Linear Cryptanalysis of DES