A public and private key
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.
When you reference a "public key" you are implying that the file has been encrypted using "asymmetric cryptography". In asymmetric cryptography, encryption and decryption depend on a key PAIR. The user retains their private key and publishes their public key. Anyone can encrypt a file using the user's public key and send it to them. The only person who should be able to decrypt a file encrypted with that public key is the holder of the private key - which, unless the user has made the mistake of sharing their private key - means that only the original user can decrypt the messages sent to them. Most of the asymmetric encryption algorithms use pretty much the same method to decrypt that was used to encrypt, but use the "other" key from the key pair. Messages encrypted using the private key can only be decrypted using the public key - which provides some authentication that the message indeed came from the holder of the private key. Messages encrypted using the public key can only be decrypted by the holder of the private key, so messages sent to them should be secure.
The asymmetric key algorithms are used to create a mathematically related key pair: a secret private keyand a published public key.
This is known as public-key cryptography, or asymmetric cryptography which is used to secure electronic communication over a network.
I've used Kakasoft Folder Protector for file encryption. It adopts 256-bit AES encryption technology and is able to encrypt files on computer or drive.
The meaning of asymmetric encryption is that one key that is unique to a recipient is used only to decrypt data instead of a key being used to encrypt and decrypt that data.
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.
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.
A common procedure for encrypting and decrypting messages involves using symmetric or asymmetric encryption algorithms. In symmetric encryption, the sender and receiver share a secret key; the sender uses this key to encrypt the message, and the receiver uses the same key to decrypt it. In asymmetric encryption, a pair of keys (public and private) is used; the sender encrypts the message with the receiver's public key, and only the receiver can decrypt it with their private key. Implementing these methods ensures that the message remains confidential and secure during transmission.
Asymmetric encryption is a cryptographic technique that uses a pair of keys: a public key for encryption and a private key for decryption. This method allows secure communication, as the public key can be shared openly, while the private key remains confidential. Only the holder of the private key can decrypt messages encrypted with the corresponding public key, ensuring that data remains secure even if the public key is widely distributed. Common algorithms used in asymmetric encryption include RSA and ECC (Elliptic Curve Cryptography).
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.
An encryption key
When you reference a "public key" you are implying that the file has been encrypted using "asymmetric cryptography". In asymmetric cryptography, encryption and decryption depend on a key PAIR. The user retains their private key and publishes their public key. Anyone can encrypt a file using the user's public key and send it to them. The only person who should be able to decrypt a file encrypted with that public key is the holder of the private key - which, unless the user has made the mistake of sharing their private key - means that only the original user can decrypt the messages sent to them. Most of the asymmetric encryption algorithms use pretty much the same method to decrypt that was used to encrypt, but use the "other" key from the key pair. Messages encrypted using the private key can only be decrypted using the public key - which provides some authentication that the message indeed came from the holder of the private key. Messages encrypted using the public key can only be decrypted by the holder of the private key, so messages sent to them should be secure.
Mostly for performance - symmetric encryption is much much faster (order of magnitudes) than asymmetric encryption.
private and primary key
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.
Encryption of a file scrambles its contents so as to make it unreadable until it is decrypted. You provide the secret encryption keyword (sometimes called a password) used in the encryption process so that only you (or a person you wish to allow to read it) can later decrypt it.