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Describe the concept of public and private key with your own words.
Public and private key encryption allows a user to verify the authenticity of a digital signature. By taking a public key that is available to everyone, you can can take a message and decrypt it by using the private key. So that without the private key no one could read the message. -
What 2 use-cases can public key cryptography be used for?
Encryption and digital signatures.
- A public key is generated from a private key and is used to encrypt data. The private key can then be used to decrypt that data. Public keys are meant to be given to others as a way to encrypt data transferred through non secure mediums.
- One use case is for public key encryption as mentioned above and the other is for signing and verifying messages.
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Private key should only known by the owner, and is used to make the public key. This is a “one way” function, and ensures encryption and a way to provide digital signature.
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Encryption and digital signature.
Private keys are used to sign transactions
- Any number can be a private key from which a public key is generated through a hash function.
- Encryption and digital signature
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Private key is generated by a computer. It’s a random number so large that it’s unlikely anyone else would end up with the same number. The public key is generated from that private key.
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It can be used for cryptography ie messages. Or it can be used for digital signatures as it is with Bitcoin.
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Public and private keys are part of a cryptographic system that uses pairs of keys. The private key is a random number that is generated by your computer and has to be kept absolutely private. The public key is derived from the private key and can be shared publicly.
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Public key cryptography can be used for encryption and digital signatures.
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1: Public key is genereted from the private key. Private key - Public key - bitcoin address
2: Encryption and digital signatures
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A bitcoin wallet consists of a private key which can generate a public key. The public key can generate bitcoin addresses to receive funds. The private key can sign transactions to send funds. You can not generate the private key from the public key or a bitcoin address.
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Public key cryptography can be used for encryption (as in messages) or digital signatures (as in cryptocurrency).
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Describe the concept of public and private key with your own words.
String of random bits is created by private key which generates a public key, I’m going to presume using hash formula given that you can’t go backwards. Then public key is shared to receive encrypted message that can only be unlocked with the private key and the private key can be used to sign the transaction to prove who the sender was -
What 2 use-cases can public key cryptography be used for?
To encrypt the message and to send to a particular individual.
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Describe the concept of public and private key with your own words.
Public and private keys are very large numbers. A private key is random extremely large number the belongs to someone taking part in the digital world. A public key is mathematically derived from a private key - via a one way function. You cannot work out someone’s private key given their public key. Given their names - private keys should be looked after with care, yet you can/should share you public key. -
What 2 use-cases can public key cryptography be used for?
Public key cryptography enables both encryption and digital signatures. Encoding a message with someones public key will mean only the person holding the private key of that public key will be able to decode it. In a similar way, sending a message that is digitally signed, is done by signing using your own private key. When opened, the recipient can verify the signature by using the senders public key
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Private Key is a random Number which has to be kept secret. From this Number the public key is derived (by maths). In order to encrypt a message the other party uses my public key to encrypt it, the output is a random string of numbers. These numbers can then be decrypted with my private Key.
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Encryption (of messages or Data) - for secure messaging ie
Signature (of transactions ie) - for identifying the party you are doing the transaction with
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Public key is encrypted message that can be decrypted only with private key, private key is used for decryption private messages and generating public keys !
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Encryption and digital signatures !
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A private key is generated by your computer when you first creat a wallet for example. This private key generates something called Public Key. This public key can be sent to anyone without risking that someone can use that key to get access to your private key. It is very important to keep the private key private.
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Encryption and digital signatures. This public key can for example be used as proof that you have written something.
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Homework on Public and Private Keys
Describe the concept of public and private keys with your own words
A private key is a large random number generated by a computer and a public key is another random number that is based off of the private key. The public key is used to encrypt messages that are being sent in a “public” space so that “listeners” cannot see what is being sent. The encrypted message can only be decrypted by the private key.
What 2 use-cases can public key cryptography be used for?
Public key cryptography can be used to encrypt messages that are being sent over a public space for privacy. Public keys can also be used to generate bitcoin wallet addresses.
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Describe the concept of public and private key with your own words.
A public private key pair is a cryptographic tool used to encrypte messages. A private key is generated from a random number which is then used to produce a public key. The private key acts like a signature that only the owner of the private key can provide and is used to decrypte the message which was encrypted byu the public key. This ensures only the sender and the recipient can decypher the message.
What 2 use-cases can public key cryptography be used for?
- Message encyption
- Digital signature
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A public key is a random set of numbers created from private key. A public key is viewed by the world. A private key is also a random set of numbers generated by your computer witch is the root of the creation of the public key. The private key is private and cant been seen by the world. When I spend bitcoin I use my private key as a signature and in so doing proves that it was I who made the transaction because the private key can be linked to the public key…
encryption and digital signatures.
- The private key is used for digital signatures and encryption.
- Public keys are used to identify and receive.
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- Describe the concept of public and private key with your own words.
In terms of encryption, public keys are designed to encrypt messages that can be sent in privacy through unsecured networks. However with private keys, they are designed to decrypt messages that have been sent from a public key.
In the case of digital signatures the private key is designed to sign off on messages where the public key is used to verify the sender of the message.
- What 2 use-cases can public key cryptography be used for?
Public key cryptography is useful for sending messages through an unsecured network. In addition, public key cryptography can also be used for digital signatures as proof of identification.
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