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In 3DES, 3 distinct keys are used as K1, K2 and K3. First encrypt with K1, then Decrypt with K2 and finally Encrypt with K3 so actual key length used in 3DES is 168 excludin 8 bit party from each 64 bits means (56+56+56 becomes 168).
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Why should prime numbers only be used as encryption keys?
prime numbers only be used as encryption keys as in encryption the numbers are coded inj the form of 0s and 1s ,i.e binary form.
What are the encryption algorithms used in ATM?
fot the past 25 years single des algorithm was used. But now triple des is used in atm cards for the encryption and decryption.
What are metal keys used for?
Depends on what kind of key.Keyboard keys are used to type.Lock keys are used to safeguard against thievery.Code keys are used to break a code or encryption.
Does the Data Encryption Standard DES have perfect secrecy?
DES is a widely-used method of data encryption using a private key that was judged so difficult to break by the U.S. government that it was restricted for exportation to other countries. There are 72,000,000,000,000,000 (72 quadrillion) possible encryption keys that can be used. For each given message, the key is chosen at random from among this enormous number of keys.
Which type of encryption technology uses two keys to encrypt and decrypt data?
If the keys are different, then it is asymmetrical. If it is the same key used twice to encode and decode; then it is symmetrical.
What is the most popular symmetric encryption system used over the Web?
The most common hybrid system is based on the Diffie-Hellman key exchange, which is a method for exchanging private keys using public key encryption. Diffie-Hellman key exchange uses asymmetric encryption to exchange session keys. These are limited-use symmetric keys for temporary communications; they allow two entities to conduct quick, efficient, secure communications based on symmetric encryption, which is more efficient than asymmetric encryption for sending messages. Diffie_Hellman provides the foundation for subsequent developments in public key encryption. It protects data from exposure to third parties, which is sometimes a problem when keys are exchanged out-of-land.
The Purpose of the Trusted Platform Module is?
Store encryption keys that can be used to encrypt and decrypt secondary storage areas like the hard disk
How is cryptography used?
Cryptography is basically the process of hiding information in order to protect the sensitive information, data or message from unknown attacks for any reasons. Cryptography actually consists of two terms encryption and decryption. The process in which message is ciphered or encrypted is known as encryption and the process in which message is deciphered at recipients end is known as decryption. And this whole process is known as cryptography. Public keys and private keys are used in the process of cryptography. Cryptography can be seen as symmetric and asymmetric. In symmetric cryptography same key is used for both encryption and decryption while in asymmetric different keys are used for both encryption and decryption. Today Cryptography is used in various fields like ATM, e-banking, IT security, Maths etc.
What kind of encryption is used with 802.11b?
WEP encryption is being used.
What refers to a technology that includes a series of features relating to authentication and encryption and is based on system of certificates?
It could be asymmetric encryption, which is where different keys are used to encrypt and decrypt the content. Digital certificates can be used to encrypt the content too. Also digital signatures use a digital certificate to authenticate that content is genuine and unchanged in transit. I don't think there's a name for certificate encryption specifically.
Which encryption process uses two keys and includes RSA as a common solution?
Type your answer here... AsymmetricAnswer Explanation: Asymmetric encryption uses a key pair, a public key, and a private key for the encryption and decryption process. One key is used to encrypt the information, and the other key is used to decrypt it. Asymmetric encryption uses Rivest Shamir Adleman (RSA) as a common asymmetric solution to encrypt information.It could be that the person posing the question was looking for SSL (or TLS) which use encryption to secure communications. While RSA is not the only encryption method accepted, both SSL and TLS can, and commonly DO, use RSA as the negotiated encryption scheme.
What is the meaning of asymmetric encryption?
Asymmetric Encryption is a form of Encryption where keys come in pairs. What one key encrypts, only the other can decrypt. Frequently (but not necessarily), the keys are interchangeable, in the sense that if key A encrypts a message, then B can decrypt it, and if key B encrypts a message, then key A can decrypt it. While common, this property is not essential to asymmetric encryption. Asymmetric Encryption is also known as Public Key Cryptography, since users typically create a matching key pair, and make one public while keeping the other secret. Users can "sign" messages by encrypting them with their private keys. This is effective since any message recipient can verify that the user's public key can decrypt the message, and thus prove that the user's secret key was used to encrypt it. If the user's secret key is, in fact, secret, then it follows that the user, and not some impostor, really sent the message. Users can send secret messages by encrypting a message with the recipient's public key. In this case, only the intended recipient can decrypt the message, since only that user should have access to the required secret key. The key to successful use of Asymmetric Encryption is a Key Management system, which implements a Public Key Infrastructure. Without this, it is difficult to establish the reliability of public keys, or even to conveniently find suitable ones.
