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Dec
25
reviewed Approve Security concern about reducing hash value using modulo operation
Dec
13
reviewed Close Fermats Little Theorem, primitive root
Dec
13
reviewed Close CCA security in double encryption
Dec
13
reviewed Close cipher inside and image
Dec
13
comment Recovering a constant salt for MD5
This question is better written than its duplicate. Oh well...
Dec
13
reviewed Close Recovering a constant salt for MD5
Dec
13
reviewed Approve Recovering El Gamal secret key from signatures
Dec
13
reviewed Approve RSA Proof of Correctness
Dec
9
awarded  Popular Question
Nov
30
reviewed Close What is the difference between IND-CCA2 and NM-CCA2? And how does one imply another?
Nov
30
reviewed Close Encrypt algorithm
Nov
30
reviewed Close Corporate PKI - SHA1 deprecation
Nov
30
reviewed Close Is the Vigenère Cryptosystem malleable?
Nov
30
reviewed Close how to represent message as an integer between $1$ and $n-1$
Nov
30
comment how to represent message as an integer between $1$ and $n-1$
What if $m$ happens to be prime? Your message is nothing but a string of bits, and so is an integer. Have a look at the multi-precision library of your language of choice (GMP for C) and from there you can find ways to translate one format into the other.
Nov
30
reviewed Close Does SHA-1 hash have quasi commutative property?
Nov
30
reviewed Close Meaning of Multiplicative Group to the power n i.e. Z^n
Nov
30
reviewed Close Does MD5 hash have quasi commutative property?
Nov
30
reviewed Close Modern integer factorization software
Nov
30
reviewed Close Issue about randomness : what if random looks “human” ?