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    • Symmetric and Asymmetric ciphers

      Symmetric and Asymmetric ciphers

      In a symmetric cipher, both parties must use the same key for encryption and decryption. This means that the encryption key must be shared between the two parties before any messages can be decrypted. Symmetric systems are also known as shared secret systems or private key systems. Symmetric ciphers are significantly faster than asymmetric ciphers,

    • Why Everyone Should Use a VPN

      Why Everyone Should Use a VPN

      VPN, or a Virtual Private Network, connects computers and other devices using an encrypted connection. This means that all data travelling through such a network is unreadable to anyone who might intercept the data stream, making it as private as it would be if all of the connected devices resided within the walls of a

    • Browser Cookie

      Browser Cookie

      A browser cookie is a small piece of information sent by a web server to a web browser to be stored for future use. The data in the browser cookie will be sent back to the web server whenever the browser reconnects to the web site. Cookies are commonly used to store user preference information,

    • Belkin Router Default Password

      Belkin Router Default Password

      Belkin is a leading manufacturer of networking devices such as modems, wireless routers, and network storage devices. Belkin also produces a number of other wireless access devices and USB based modem cards and markets a number of data plans for some of the largest Internet Service Providers. Belkin Router Default Password As with any other

    • How to Change an AOL Password

      How to Change an AOL Password

      There are two circumstances that can cause someone to want to change his/her AOL password: 1) forgetting the AOL password and needing to recover it and 2)  to change the AOL password. The latter can be because the AOL password has leaked to someone or the user wants to adhere to the good practice of

    • Rubber Hose Cryptology

      Rubber Hose Cryptology

      Rubber Hose Cryptography refers to a file system in which multiple archives are encrypted and hidden on the same disk in a way that makes each archive appear to be the size of the entire disk. Rubber Hose Cryptography is often used to hide illegal or confidential information in an attempt to prevent theft or

    • MD5 (Message Digest 5)

      MD5 (Message Digest 5)

      MD5 is a message digest algorithm. MD5 takes a variable length input and produces a 128-bit message digest. MD5 was designed by Ron Rivest in 1991. MD5 is officially defined in RFC 1321 – The MD5 Message-Digest Algorithm. MD5 Usage MD5 is used in many applications, including GPG, Kerberos, TLS / SSL, Cisco type 5

    • How to Remove a Virus

      How to Remove a Virus

      A computer virus is designed to infect computer files through self-replication, and is able to infect other computers on its own. Viruses infect computers through boot sectors of portable drives, email attachments, other files, and by exploiting vulnerabilities in instant messaging and other real-time communication systems online. Not all computer viruses harm computers, but many

    • What Are Default Passwords?

      The following are default usernames and passwords for many systems: AS/400 qsecofr qsecofr /* master security officer */ qsysopr qsysopr /* system operator */ qpgmr also qpgmr /* default programmer */ ibm password ibm 2222 ibm service qsecofr 1111111 qsecofr 2222222 qserv qserv qsvr qsvr secofr secofr qsrv ibmce1 DECserver ACCESS SYSTEM Dynix (The library

    • One-Time Pad

      One-Time Pad

      A one-time pad is a form of encryption that is difficult to decipher or crack if one is not the intended recipient. If done correctly, the strength of encryption of plaintext can almost be impossible to break in a useful timeframe. The system takes each character from plaintext and uses modular addition with a character

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