Homework on Public and Private Keys - Questions

Blockchain and Bitcoin 101
#5108

  1. a private key is private, only the owner uses it. a public key is created from the private key. the public key is used to encrypt information and then the private key is used for decrypting this.

  2. it can be used for encryption and digital signatures

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#5109
  1. Describe the concept of public and private key with your own words.

The private key is generated with a random number and the public key is the reverse of the private key.
You can use the private and public key to encrypt a message or any information.

  1. What 2 use-cases can public key cryptography be used for?

Encryption and digital signign

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#5110

Q1. Describe the concept of public and private key with your own words.
A. A public key is a randomly generated number that can be shared and used to encrypt information, whereas a private key (known only to the holder) generates the public key and is used for digital signatures.

Q2. What 2 use-cases can public key cryptography be used for?
A. The two use cases are encryption - used to send private messages across a public or unsecured network - and the production of digital signatures to verify the validity of a transaction.

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#5111

  1. The private key is my own key only available to me. This private key is used to generate a public key. When a message is sent to the public key, only my private key can decode the message.

  2. Encrypted messages and Digital signatures

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#5112

  1. Private key belongs to one individual and should be kept secret because it is the only way to access your personal account/cryptocurrency. The private key is used to create a public key, which allows for encryption of messages/transactions without compromising the contents of the interaction to any unwanted parties. Only people with access to the private key can decrypt the output of the public key.

  2. The first use-case is encryption where the public key is used to encrypt messages between selected parties without revealing the contents to anyone else. Only the desired parties with access to the private key will be able to decode what the message says.
    The 2nd use-case is verifying digital signatures. An individual can sign a transaction using their private key and the recipient can verify the transaction using the public key created by the individual to see whether the signature corresponds to the private key of the individual.

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#5113
  1. public key- Is created from private key it can be seen by anybody.
    private key- It is private it should always be secert. it is used to sign a transaction.
  2. It is used for Encryption & Digital signatures.
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#5114
  1. Describe the concept of public and private key with your own words.
    public key is a number created by the private key that is your like your address and can be given out to everyone and private key is like your password.
  2. What 2 use-cases can public key cryptography be used for?
    Digital Signatures and Encryption
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#5115
  1. Describe the concept of public and private key with your own words.

Private key unique randomly generated number/letters that matches to a unique output of generated numbers and letters (public key) that can be shared publicly. The keys are generated via function although the public is derived from the private, but not vice versa. The private key can be used to sign transaction or messages to prove someone is in fact the owner of the private key through digital signatures.

  1. What 2 use-cases can public key cryptography be used for?

To send encrypted messages and to securely transact.

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#5116
  • Homework on Public and Private Keys - Questions
    • Describe the concept of public and private key with your own words.
      • Basically your identity keys, Privates keys can’t be duplicated and your private key and public key must match in order to verify and/or decrypt any transactions and/or messages etc. Wallet -> Private Key -> Public Key -> BTC address (or coin address) (cant go in reverse)
    • What 2 use-cases can public key cryptography be used for?
      • Encryption, and digital signature (most used in crypto)
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#5117

  1. I would describe a public and private key as such: The public key is derived from the private key through encryption, making it available to the public for use, yet completely disconnection from the origin. What I am getting at is the public key is essentially a buffer between your private key and the public in order to securely transact.

  2. 2 use cases are digital signatures which validate the transaction and prove where the funds or message came from. The second is encryption which lets everyone transact securely with one another.

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#5118

  1. The public key is shareable and encrypts data. The private key is the key that is meant to be kept private and used to decrypt data.

  2. The main use cases are encryption and digital signatures.

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#5119

private keys generate public keys, anyone can view your public key but no one can view your private key.

2 cases would be encyrption and digital signatures.

having this opens up to the world to a whole new way of doing things. No more hacks or leaked data. Love it !!!

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#5120
  1. Private- security.
    Public- Identity.
  2. Encryption and signature.
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#5121
  1. Describe the concept of public and private key with your own words.

Public and private keys are used to encrypt messages in environments where other people can see or listen in. It allows 2 people to communicate securely. This is done by creating a public key from a private key, which only those 2 people have access to.

  1. What 2 use-cases can public key cryptography be used for?

I. Encryption
II.Digital signatures

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#5122

A public key is a key that is derived from your private key and open to the public for anyone to see. Your private key is a key that gains access to assets you receive, for example, information or cryptocurrencies.

The first use case is when Alice is trying to send a message to Bob on a public forum, Alice can encrypt her message with Bob’s public address. That way, in order for Bob to read the message, he has to use his private key. Additionally, if Bob receives money from Alice and wants to make sure that it was her who sent it, Alice can use her private key to put a signature on the funds sent and let Bob know it was from her.

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#5123
  1. A Public key is a random generated number that acts as your wallet number. A Private key is like your house key you dont want other people having it. its what you use to get into the wallet
  2. public keys can be seen by anyone to send them crypto or a encrypted message.
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#5124

  1. Describe the concept of public and private key with your own words.
    Public key is a publicly identifiable available key derived from the private key it is used to send encrypted messages that can be only read/accessed by the receiver with the private key. In Bitcoin private keys are used as digital signatures to verify that the sender did approve a transaction on his end by sending the transaction to a public key or wallet address.

  2. What 2 use-cases can public key cryptography be used for?
    Encyptions & Digital Signatures

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#5125

  1. The Public key is encrypted data you can share with others while private key is the data only you can see and can decrypt from the public key.

  2. The two use case are encryption and digital signatures (user’s secure private keys).

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#5126
    • Public key is a set of numbers that other people can see when sending an encrypted message derived from your private key. A private key is a set of random numbers that no one can see but you, and generates your public key.
    • Sending encrypted messages (email, pdf’s, etc) and protecting your wallet during transactions (cryptocurrency).
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#5127

1. Describe the concept of public and private key with your own words.
The public key is generated from the private key. It’s an encrypted function that takes the private key as the input and set the public key as the output. Today we still cannot revert this process therefore we can call it safe. The public key is what the others can see and they can use it to encrypt a message that they only want us to be able to decrypt.
2. What 2 use-cases can public key cryptography be used for?

  • To transfer funds from our wallet to another one (we send the funds to another public key)
  • To encrypt a message so that only a “person” can read it
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