155 reputation
7
bio website lustigetiervideos.de
location Germany
age 28
visits member for 1 year, 3 months
seen 37 mins ago

If you are forced to reinvent the wheel, at least try to make a better one.


May
23
awarded  Popular Question
Jan
14
comment Do I need to prepare plain text before encryption?
yes I think so, +1 for your answer
Jan
14
comment Do I need to prepare plain text before encryption?
I like your answer but would like to add that it's not always interesting how much two instances exchange messages. Sometimes it's also very interesting for eavesdropper that they know there is message exchange (wether its encrypted or not)
Dec
5
awarded  Teacher
Nov
25
answered Help me about Advanced Encryption Standard (AES)
Jul
2
accepted RSA by hand - did I do something wrong? (c = m on encryption)
Jul
1
comment RSA by hand - did I do something wrong? (c = m on encryption)
okay, so choosing e < phi(n) boosts the performance of encryption. and for the rest I am understanding that it is a random case which I encountered because of small values. It's just because I really try to understand how it works and not just accepting that it does..
Jul
1
comment RSA by hand - did I do something wrong? (c = m on encryption)
This starts to lighten up. So the problem is choosing a n e for which the inverse modulo is not the remainder of e mod n ? In fact this is the case for all values I have tried. Then how to choose it correctly and wisely? I have also seen that ciphertext varies and is not always m=c.
Jul
1
comment RSA by hand - did I do something wrong? (c = m on encryption)
But choosing e=11 and m=10 would also give me m=c for 10^11 mod 15
Jul
1
awarded  Editor
Jul
1
comment RSA by hand - did I do something wrong? (c = m on encryption)
But for choosing e bigger than phi(n) and relatively prime what would be a good choice? I don't think I understood completely what you try to say. Or is it wrong to have e > phi(n) ?
Jul
1
revised RSA by hand - did I do something wrong? (c = m on encryption)
added 2 characters in body
Jul
1
asked RSA by hand - did I do something wrong? (c = m on encryption)
May
3
awarded  Scholar
May
3
accepted AES plaintext is smaller than 128 bits - how to expand?
Apr
25
awarded  Student
Apr
25
comment AES plaintext is smaller than 128 bits - how to expand?
looks good as it is the answer - maybe you should add it as a answer to this question so I can check it :-)
Apr
25
awarded  Supporter
Apr
25
comment Keys required for cryptography
this is called: gaussian sum formula :-) Maybe you should add it to your good answer!
Apr
25
asked AES plaintext is smaller than 128 bits - how to expand?