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The concept of public and private keys describes a relationship that is made possible between information that is accessible by people in a public forum and thus is not private and information that is only intended for private viewing by specific persons. The private key is generated by a user when he clues that information is private. Then his computer generates a very large number that serves as a private key. A public key is derived from the private key and may identify its originator. It is not possible to determine the private key from the public key. The computer generated private key is of such a magnitude that the possibility of another computer generating the same number are virtually impossible.
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The use-cases for PUBLIC KEYS is for a) Encryption and b) Digital Signatures.
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Describe the concept of public and private key with your own words.
With the help of both public and private key we can send encrypted messages and other things in public forum and the only one who can encrypt the message is the person who will get it with the use of private key. -
What 2 use-cases can public key cryptography be used for?
-messages
-transaction/funds
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Encryption - A person who has a public key can encrypt an message intended for a specific receiver. The receiver with the private key is the only person that can decrypt it.
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Digital Signatures - This is where they are signed with a private key and verified by the individuals public key.
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Public key is derived from private key. It uses mathematical formula such that private key could not be figured out from the public key. Public key can be used by anyone to encrypt their message but decryption can only be done by the private key. To generate the public and private key pair, the private key is first derive by the computer from a very large random number. Then the public key is derived from the private key.
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The 2 uses-cases that public key can be used is for encryption of messages by using the receiver public key so only the receiver can decrypt and the other function is for receiving funds.
My computer generate a private key with random numbers that can create a public key after. Then a digital signature can be generated with my public key. It’s impossible to go the other side. It’s a one way thing.
Encryption and digital signature used for messaging and transactions.
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Cryptography uses two type of keys, private and public. Both generates by network/protocol by request of the user. Private key is keeping in a secret by the user, public one is sharing with the community. If the user A would like to have a private communication with the user B in the open network the A uses the B’s public key to encrypt correspondence while the B’s uses a private key to decrypt and read it.
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Public key cryptography is used for encrypting P2P correspondence and decrypting a digital signature, i.e setting up that a particular digital signature of a sender matches his/her public key and vice versa.
- Public key enables transactions over an insecure or public network but that is enabled by the inbuilt security of signing such transactions using your private key.
- Encryption and Signage
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A private key is a random sequence of numbers that your own computer creates. This sequence is then run through a mathematical equation to create your public key. The equation is complex enough and the resulting key is large enough that it is impossible to: 1, work backwards to deduce the private key from the public key, and 2, for someone else’s computer to randomly generate the same exact sequence as the key that your computer created. Their uses range from communicating securely on public networks to proving that you were the person who authorized a particular transaction.
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The two use cases that public key cryptography can be used for are encryption and digital signatures.
Describe the concept of public and private key with your own words.
A public key is generated from a private key (random number generated by one’s computer. The public key is used to encrypt the message that is to be sent to the person that is intended to decrypt it (the recipient) via the private key.
What 2 use-cases can public key cryptography be used for?
Encryption and digital signatures
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Describe the concept of public and private key with your own words.
Public key has been successfully used for hiding original sensitive information without having to worry about original content to the public. Its used to encrypt messages, Convert messages to unreadable form.
Private key is used to decrypt messages back to its original form and should be kept private by its owner. -
What 2 use-cases can public key cryptography be used for?
Encryption and Digital Signatures
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Private and public keys are large numbers exhibiting a one-way mathematical relationship. The private key is a large, randomly generated number which is subjected to a mathematical operation to generate the public key, but that operation cannot be reversed.
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The two use cases of public/private key cryptography are encryption and digital signatures.
Within PKI you are using a private and a public key. For it to work you start with generating your private key, which is unique to you. From that privare key a public key is generated. This public key can be shared with anyone and is used for encryption of data that should be shared only to you. The only way to decrypt that data is to use your private key.
The 2 use cases for PKI is encryption and digital signatures.
Encrytion is used to make it impossible for unauthorized persons to read or access the data being sent.
Digital signatures are used to ensure that the data received really is from the sender. Using the senders signature and public key and comparing them with the private key of the sender, you can authenticate the source of the data.
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A public key can be created by a private key, and is used to encrypt and decrypt messages, or sign and validate transactions
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Is can be used to verify a transaction against a signature, or it can be used to encrypt a message.
- Your PC generate long random number - Private Key. You need to keep it save, if you lose it you lose access to your funds and cannot send any transcactions. Your Private key is digital signature if you want to send message to someone. You cannot have the same Private Key as somebody else. Through special formula from your Private Key generates your Public Key and Public Key you can share it with anyone on any social media, blog… There is now way to generate Private Key from any Public Key.
- Encryption and Digital Signatures
- These key pairs depends on algorithms which are based on mathematical problems- one way functions.Security is required keeping the private key private . The public key can be openly distributed without compromising security.
- For data encryption and digital signatures
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Public and private key is used for encryption based on mathematical cryptography. A private key is randomly generated number. The public key is mathematically connected to it one way non reversable. Meaning the private key which is kept private becomes the “key” to opening or digitally signing the public key.
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Two use-cases that public key cryptography can be used for is encryption of data and digital signatures.
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Describe the concept of public and private key with your own words. Public can be derived from private, but not reversed. Private is yours only but others can see public key to send to. Others can use your public key to encrypt a message, but only you can decrypt that message with your private key due to the public key relationship of derivative from the private key.
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What 2 use-cases can public key cryptography be used for? Encryption and digital signatures
1 is a way to encrypt messages or information and keep them safe, even on a public environment because it’s impossible to go from a public key to a private one.
2 on Bitcoin. Also it’s used as digital signature
- The private key is a random number generated by the computer that is kept secret from others. It’s used to generate through a mathematical formula a public key that can be seen by everyone and which is used to decrypt the private key.
- Encrypting data and verify who sent a message (digital signature).
- Public and Private keys is a process of encryption of which the public key is reliant on the other , the private key for encrypting messages or transactions.
- Digital signature and encryption.