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Dec
28
comment Why xor is a linear operation but ordinary adding is not
Right, scalar multiplication isn't distributive over field addition.
Dec
28
answered Why xor is a linear operation but ordinary adding is not
Dec
27
reviewed Excellent Why is sharing the seed and using SecureRandom “deterministically” so bad?
Dec
27
comment Using HMAC to secure a “widget”
HTTPS encrypts the GET request as well, not just the headers.
Dec
25
awarded  Custodian
Dec
25
reviewed Satisfactory Hypothetical unknown cipher - security in obscurity?
Dec
23
answered Why do these Python XTEA implementations require different deltas?
Dec
22
suggested rejected edit on Brute Force on 3DES with Reduced Keyspace and Unknown IV
Dec
22
answered Brute Force on 3DES with Reduced Keyspace and Unknown IV
Dec
21
comment Brute Force on 3DES with Reduced Keyspace and Unknown IV
Do you anything about the second half of the key (e.g., it consists only of letters) or is it a pseudo-random string?
Dec
21
comment Brute Force on 3DES with Reduced Keyspace and Unknown IV
Do you know which mode of operation has been used? How long is the key?
Dec
17
comment Scrypt's maximum strength to increase entropy of lame passwords
@user4982: You can try to brute-force a password with pretty much every programmable electronic device with enough memory, but the estimated costs of the slides (and paper) use 2002 ASIC technology.
Dec
17
answered Scrypt's maximum strength to increase entropy of lame passwords
Dec
17
comment Is there a general method to crack this type of fractionating cipher?
How are spaces encoded?
Dec
9
awarded  Nice Answer
Oct
17
awarded  Yearling
Oct
2
awarded  Enlightened
Oct
2
awarded  Nice Answer
Jan
20
answered How does using salt reduce rainbow table attack?
Jan
18
answered Difference between Rijndael 128 / 256 blocksize implementations? (and impact of block size in general)