Microsoft Access had no encryption capability until the release of Microsoft Access 2007. With the MS Access 2007 release, encryption is now available. Encryption Requirements To encrypt your access database you must use a new database format released with MS Access 2007, the ACCDB format. Differences between the original MDB format and the new ACCDB …
Everyone likes safety. The safety of confidential information is always of special concern. Therefore, information protection is a necessity and can be useful to companies and individuals who care about their intellectual property’s confidentiality. People who want their e-mails kept confidential and their e-mail attachments readable only to the intended recipient can appreciate information protection. …
Cryptanalysis is the study of analyzing information systems in order to “discover” or “crack” the hidden or secret aspects of those systems. More specifically, cryptanalysis is the study of breaching cryptographic security systems in order to obtain access to the information contained within encrypted messages without necessarily knowing the cryptographic key used to encrypt the …
X.509 is an ITU-T (ITU Telecommunication Standardization Sector) standard for PKI (Public Key Infrastructure) in cryptography, which, amongst many other things, defines specific formats for PKC (Public Key Certificates) and the algorithm that verifies a given certificate path is valid under a give PKI (called the certification path validation algorithm). X.509 History X.509 began in …
The Diffie-Hellman key exchange was first published by Whitfield Diffie and Martin Hellman in 1976 and is a popular method for exchanging cryptographic keys. The method is one of the most straight-forward examples of key exchanges implemented in the cryptology field and allows two individuals or parties that have not worked together before to establish …
Steganography has gained a significant amount of press over the past several years when the technique hit the press as a possible method that many of the terrorists involved with the 9/11 attacks used to plan the operation. Similar to the use of encryption, steganography techniques have become one of the basic methods that organizations …
GPG, or GNU Privacy Guard, is a free replacement and competing product for PGP (Pretty Good Privacy). The project is a data encryption and decryption application which provides end-users with a cryptographic privacy and authentication system for communicating electronic data. GPG can be used to sign, encrypt, and decrypt text, for email, files, directories, and …
TrueCrypt is a free, open source disk encryption software that is available for the Windows XP, Windows Vista, Windows 7, Mac, Linux, and Unix operating systems. TrueCrypt provides users with real time encryption/decryption, parallelization and pipelining to read/write to partitions as fast as non-encrypted partitions, and plausible deniability through hidden volumes and hidden operating systems …
In the study of cryptography the terms plaintext and ciphertext are used to describe the plain language message or information and the resulting encrypted message or data that results from the use of a cipher or encryption algorithm. The resulting ciphertext is not readable by either a human or computer without the correct cipher to …
SHA stands for Secure Hash Algorithm. It consists of five hash functions designed by the National Security Agency (NSA) and published by the National Institute of Standards and Technology (NIST). The five algorithms are SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512. SHA-1 is the most commonly used of the SHA series. Hash algorithms are called secure …