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both parties share the same key to encrypt and decrypt
- Symmetric encryption means that an encrypted file can be decoded simply by reversing the way it was coded. If we consider it in terms of a padlocked box, the same key that was used to lock it, can be used to open it once again.
In terms of files this means that if you encrypt a file using a password, that same password can be used by anyone who knows it, to decrypt the data. The disadvantage of this is that whenever you encrypt a file and send it to someone, you must make sure that person also knows the password you used.
This is why asymmetric encryption exists whereby one person can encrypt and send a file to someone else using "public key cryptography". The short definition of this is that encrypted data is not decrypted in the same way which means that there is no need to have a prearranged password.
There are two general types of modern cryptography; symmetric cryptography and asymetric (also known as public key) cryptography. Symetric crypto is where both sides have the same shared encryption key, and that key is used to both encrypt and also decrypt any encrypted information. Symmetric crypto is more efficient (faster) than asymmetric crypto, but asymetric crypto works without having to share a key.
Symmetric-key algorithms are a class of algorithms for cryptography that use the same cryptographic keys for both encryption of plaintext and decryption of cipher text. The keys may be identical or there may be a simple transformation to go between the two keys. The keys, in practice, represent a shared secret between two or more parties that can be used to maintain a private information link. This requirement that both parties have access to the secret key is one of the main drawbacks of symmetric key encryption, in comparison to public-key encryption.
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Is DES symmetric or asymmetric cryptography?
Symmetric
What is a common symmetric cryptography solution?
AES
What the the different types of cryptography?
There are 2 types of cryptography such as: 1- Symmetric-key or Secret key Cryptography 2- Asymmetric-key or Public key Cryptography
What are the different types of cryptography?
There are 2 types of cryptography such as: 1- Symmetric-key or Secret key Cryptography 2- Asymmetric-key or Public key Cryptography
What is symmetric cryptography?
There are two general types of modern cryptography; symmetric cryptography and asymetric (also known as public key) cryptography. Symetric crypto is where both sides have the same shared encryption key, and that key is used to both encrypt and also decrypt any encrypted information. Symmetric crypto is more efficient (faster) than asymmetric crypto, but asymetric crypto works without having to share a key.
Does symmetric cryptography use the same key to encrypt and decrypt a message?
Yes
Which is not a disadvantage of symmetric cryptography in IA?
Math algorithms are complex and can easily be broken
How asymmetric cryptography both requires and support the use of symmetric cryptography?
Lmfao - do Richard kays coursework by yourself instead of asking others to answer it for you.
What is a disadvantage of symmetric cryptoghrapy?
Symmetric cryptography only requires one key for both encryption and decryption and therefore in some cases are a issue.
What are the steps involved in symmetric cryptography Also explain key management in conventional cryptography using some example?
following steps are involved in symmetric cryptography 1- sender creates a ciphertext message by encrypting the plain text message with a symmetric encryption algorithm and a shared key. 2- the sender sends the ciphertext message to the recipient. 3- the recipient decrypts the ciphertext message into plain text with a shared key.
What statement relating to access control is accurate?
Symmetric cryptography is impractival when a large group is involved.
What is a symmetric encryption?
Symmetric-key algorithms are a class of algorithms for cryptography that use trivially related, often identical, cryptographic keys for both decryption and encryption.
