Questions On The Digital Envelope Opening Process Essay

Change Cipher Spec: - This protocol is used to change the keying material used for encryption between the client and server. Keying material is raw data that is used to create keys for cryptographic use. The Change Cipher Spec sub-protocol consists of a single message to tell other party in the SSL/TLS session, who is also known is the peer that the sender wants to change to a new set of keys.

pieces. The data packet is sent to a gateway computer which either recognizes the address

10. Yes, this record contains a pre-master secret. It is used for producing master secret for the server and the client. The master secret can generate a set of session keys for media access control and encryption. The secret is encrypted by server’s public key. The encrypted secret is 128

During the identification phase, the user puts the finger on the same sensor, generating a new fingerprint image or template called query print. Minutiae points are carried out from the query print, and the matcher module compares the set of query minutia with the stored minutia templates or image in the enrollment database to find the number of similar minutia points. Because of variations present in finger placement and pressure applied to the sensor, the minutia points take out from the template and query fingerprints must be lined up, or submitted before matching. After line up the fingerprints, the matcher decides the number of pairs of matching minutiae-two minutiae points that have similar location and directions. The system decides the user's identity by comparing the match score to a

Host1 send message1 to Host2,3,4. Host4 sends message4 to host3. Host3 sends message2 to host1. Host3 send message3 to host1.

The first eight bits are a header which identifies the version of the protocol. The next 28 bits identify the organization that manages the data for this tag; the organization number is assigned by the EPCglobal consortium. The next 24 bits are an object class, identifying the kind of product; the last 36 bits are a unique serial number for a particular tag. These last two fields are set by the organization that issued the tag. The total electronic product code number can be used as a key into a global database to uniquely identify that particular product(Brock

Initially, an exchange protocol, such as a password- authenticated key exchange protocol, is used to create a shared secret. From the shared secret, two keys are created: a utilized key and a stored key. The utilized key is used to encrypt messages between nodes. When it is time to replace the utilized key to maintain security, the stored key is utilized to encrypt messages for generating/distributing a new shared secret. The new shared secret is then used to generate a new utilized key and a new stored key. This process may be repeated any number of times to maintain

Other methods used were secure tunnel (TLS/SLL) Seed Exchange and Keystore. While, some combine the use of OTP with two-way authentication; this method highly depends on the service provider of the MD and the Phone SIM card number [29,30]. Nevertheless, developers strive to mitigate the MITM attacks with use of multi-authentication methods like finger-print, encrypted connection, ciphering system and algorithms all in different combinations to decrease the risk of exploitations and

Step2. In the event that the AS can decode the message effectively, it issues an impermanent session key, which is scrambled with the client's secret key (a key got from the client password, which is put away in the KDC), and a TGT encoded with the TGS's secret key. The TGT contains the name of the client and a duplicate of the session key (an arbitrarily created impermanent encryption key) to be utilized by the client and the Server for any ensuing correspondence.

basis, which list information about the sending router. Included in the packets are a series of

The hash is encrypted with Person A’s Private Key (in this case it is known as the Signing Key) to create the Digital Signature.

Authentication is the only method which protects information or data of an individual or organization from a second party to access. Based upon the confidentiality of that particular data or information, the level of authentication depends. Now-a-days, all this data and information what we are talking about is getting digitized all around the world. For this digitized data or information to be secure, a proper authentication procedure must be set. This arise the need for an authentication secret which belongs to the category “Something we know” to come into picture. These secrets authenticate each secret holder as the authorized legitimate user to access their particular account. Technology is

Two parties each create a public-key, private-key pair and communicate the public key to the other party. The keys are designed in such a way that both sides can calculate the same unique secret key based on each side's private key and the other side's public key.

Asymmetric key system (or asymmetric algorithm; public key): A cryptographic system that uses two separate keys: one key to encrypt and a different key to decrypt information. These keys are known as public and private

This chapter summarized the studies from other researchers who have carried out their research in the same field of study. The specific areas covered are the background Electronic Fiscal devices and its challenges faced by user of EFD machines in Tanzania by drawing inference from all over the world.