Cryptography Stack Exchange is a question and answer site for software. Simple homomorphic crypto for 32-bit. I'm looking for something that's easy to.

• Best Free Encryption Program For Windows

It depends on what you mean by '32-bit integer'. If you want to add integers which will never exceed the range -2 31.2 31-1 (i.e. Integers which fit in 32 bits), then will be fine.

It can encode with various codecs, like DivX4 (1 or 2 passes), libavcodec, PCM/MP3/VBRMP3 audio. This package contains mencoder, a simple movie encoder, designed to encode MPlayer-playable movies (AVI/ASF/OGG/DVD/VCD/VOB/MPG/MOV/VIV/FLI/RM/NUV/NET) to other MPlayer-playable formats. Download mplayer mencoder for win32. MPlayer plays most MPEG, VOB, AVI, Ogg/OGM, VIVO, ASF/WMA/WMV, QT/MOV/MP4, FLI, RM, NuppelVideo, yuv4mpeg, FILM, RoQ, PVA files, supported by many native, XAnim, RealPlayer, and Win32 DLL codecs. It can also play VideoCD, SVCD, DVD, 3ivx, RealMedia, and DivX movies.

It uses mathematics which can be viewed as 'slightly complex' so you could also rely on a simpler. With ElGamal, you do not add; you multiply. So you would have to represent integer value x with value g x, and, upon decryption, you would have to solve the discrete logarithm, which can be done with cost about 2 16 if you are sure that the exponent resides in a 32-bit range (2 32 is low enough that this can practically be sped up a lot with precomputed tables; e.g., store hashes of all g y where y is a multiple of 2 12: you only need to store a million hash values, and you do the discrete log step in an average of two thousands multiplications and hashing). If by '32-bit integer' you mean modular integers, which 'wrap around' at 32 bits, then things become much more complex. You could choose the group parameters for ElGamal such that the generator g has order 2 32 exactly, but security would have been quite nullified in the process.

Best Free Encryption Program For Windows

It would deter only low-grade attackers who indiscriminately balk at mathematics.