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OpenPuff Steganography and Watermarking, sometimes abbreviated OpenPuff or Puff, is a free steganography tool for Microsoft Windows created by Cosimo Oliboni and still maintained as independent software. The program is notable for being the first steganography tool (version 1.01 released in December 2004) that: lets users hide data in more than ...
VeraCrypt. VeraCrypt is a free and open-source utility for on-the-fly encryption (OTFE). [ 5] The software can create a virtual encrypted disk that works just like a regular disk but within a file. It can also encrypt a partition [ 6] or (in Windows) the entire storage device with pre-boot authentication.
Encrypting File System. The Encrypting File System ( EFS) on Microsoft Windows is a feature introduced in version 3.0 of NTFS [ 1] that provides filesystem-level encryption. The technology enables files to be transparently encrypted to protect confidential data from attackers with physical access to the computer.
DVD Decrypter. Lightning UK! DVD Decrypter is a software application for Microsoft Windows that can create backup disk images of the DVD-Video structure of DVDs. It can be used to make a copy of any DVD protected with Content Scrambling System (CSS). The program can also record images to disc — functionality that the author has now ...
MD5 is prone to length extension attacks. The MD5 message-digest algorithm is a widely used hash function producing a 128- bit hash value. MD5 was designed by Ronald Rivest in 1991 to replace an earlier hash function MD4, [ 3] and was specified in 1992 as RFC 1321. MD5 can be used as a checksum to verify data integrity against unintentional ...
DeCSS. A fragment of the DeCSS code, which can be used by a computer to circumvent a DVD's copy protection. DeCSS is one of the first free computer programs capable of decrypting content on a commercially produced DVD video disc. Before the release of DeCSS, free and open source operating systems (such as BSD and Linux) could not play encrypted ...
Caesar cipher. The action of a Caesar cipher is to replace each plaintext letter with a different one a fixed number of places down the alphabet. The cipher illustrated here uses a left shift of 3, so that (for example) each occurrence of E in the plaintext becomes B in the ciphertext. In cryptography, a Caesar cipher, also known as Caesar's ...
Comparison of implementations of message authentication code (MAC) algorithms. A MAC is a short piece of information used to authenticate a message—in other words, to confirm that the message came from the stated sender (its authenticity) and has not been changed in transit (its integrity). Implementation. HMAC - MD5. HMAC- SHA1.