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Oct
21
comment SSL implementation in windows?
I'm voting to close this question as off-topic because questions about programming, libraries and platform specific APIs may be asked on stackoverflow.com
Oct
12
answered For any hash value, is there an infinite number of inputs that hash to it?
Oct
8
reviewed Looks OK Is there any opensource white-box implementation of AES or DES?
Oct
8
comment How to show something is not a one-way function?
@fkraiem: I am saying that the condition "all polynomials $p$" in the definition of strong one-way function your answer, probably isn't what you meant. For all candidate functions, it is possible to choose a constant polynomial that makes the inequality false. Hence, no strong one-way functions exists.
Oct
8
comment How to show something is not a one-way function?
$p(n) = C$ is a polynomial.
Oct
8
reviewed Close Perfect Secrecy of AES file Encryption
Oct
7
comment Are there MD5 collisions for inputs of different length?
@ddddavidee: MD5 has an input length constraint of max $2^{64}-1$ bits. You can't have $2^{128}+1$ unique MD5 inputs each with a unique length.
Oct
7
comment How to find the value of a vector modulo a basis in lattice-based cryptography
Would it help to know that you will find the definition and a formula on page 12 of the paper? Cf: crypto.stanford.edu/craig/craig-thesis.pdf#22
Oct
6
reviewed No Action Needed Is my protocol that uses hybrid cryptography and AES-GCM secure?
Oct
6
revised SHA-256 “almost unique”?
edited tags
Oct
6
answered SHA-256 “almost unique”?
Oct
6
reviewed Close Weird base64-like (?) encoding
Oct
5
reviewed Close Generating unbiased numbers with a biased six sided die?
Oct
5
comment Weird base64-like (?) encoding
Such encodings can be produced by any large arithmetics library that supports conversion of octet strings to integers and of integers to arbitrary base representation. It is however not on topic here.
Oct
5
reviewed Close ephemeral-ephemeral ECDH and MITM attack
Oct
1
reviewed Close how to get the file used to brute force any encryption method
Oct
1
reviewed Close generate RSA public key having public modulus and exponent
Sep
26
comment Define “cryptographer”
People who state "I am not a cryptographer" in a question here, probably don't imply anything, but that they would appreciate an answer that only requires basic prior knowledge of the subject. Possibly, it might also be an appeal to the ego of any expert prepared to answer. Flattery is the simplest form of manipulation.
Sep
11
comment Encrypt with one cipher and decrypt with a different cipher?
Storing the algorithm in the ciphertext does not compromise security provided that the algorithm identifier is treated as additional authenticated data when the message authentication code is calculated.
Sep
7
comment What are the strenghts and weaknesses of Whirlpool Hashing Algorithm
This is not a weakness. It is a theoretical result that demonstrates that the number of rounds in the full algorithm can't be significantly reduced.