Homework on Public and Private Keys - Questions

Blockchain and Bitcoin 101
#3242
  1. Private and public keys are for security. Your public key is for the world to see and there is no way to take this information and determine your private key (it is a one way function).The concept is so transactions can be verified as being you without risking the loss of your information/coins.

2.Encryption and digital signatures

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#3243

Private key is not a digital signature by itself. Private key is used to create digital signatures of messages that can be verified with the public key. :slight_smile:

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#3244
  1. public key is a directional for encrypted blockchain and internet data whose subsequently received contents is protected on the recipient’s end in the form of a private key, held only by the recipient to insure privacy and security
  2. encryption and digital signatures
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#3245
  1. The concept for public key is encryption, and the concept for the private key is being a form of digital signature. The public key is derived from the private key, and is not possible to go from the public key to the private key.
  2. The 2 use cases for a public key are to verify a transaction and to encrypt data for only the recipient
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#3246
  1. Describe the concept of public and private key with your own words
  • with private key, you create/generate your private key. In real life, I kinda think that a public key is like your email address and a private key is your password…but engrypted.
  1. What 2 use-cases can public key cryptography be used for?
  • encryption and creating digital signatures
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#3247
  1. Describe the concept of public and private key with your own words.

Public key, is shared in the network, is generated by private key and is used for sensitive message encryption. While private key, is randomly generated by the computer and it is used to decrypt that sensitive message that was sent.

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

a) Encryption - for private messages

Digital signature - for cryptocurrency

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#3248

Private key is not a digital signature by itself. Private key is used to create digital signatures of messages that can be verified with the public key. :slight_smile:

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#3249
  • Describe the concept of public and private key with your own words.

The concept of public and private keys is that your private key is yours and yours alone, no one should know it or be able to figure it out, it also acts as a form of digital signature within the blockchain. Your public key acts as your public address in which anyone can see and interact with, it also works as a form of encryption on the public network.

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

Public key cryptography can be used to encrypt data, and for digital signatures.

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#3250

  1. A public key is a formula that can be shared through an open network without revealing the private key, which is randomly generated and secure.

  2. encryption and digital signatures

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#3251

Homework on Public and Private Keys - Questions

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

I :heart_eyes: this example so much , haha, see below:

Bob :cowboy_hat_face: wants to send Alice :heart_eyes_cat: an encrypted email. To do this, Bob takes Alice’s public key and encrypts his message to her. Then, when Alice receives the message, she takes the private key that is known only to her in order to decrypt the message from Bob.

2. What 2 use-cases can public key cryptography be used for?
-encryption :skull_and_crossbones:
-digital signatures

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#3252
  1. Private key is your unique address that can hold data. Your public key is derived from your private key using hash functions. Your public key is to be shared so that others may send things to you. However, you keep your private key a secret so others cannot have access to withdrawing your stuff.
  2. You can use public key cryptography to encrypt a message by putting a receiver’s public key in the message. Another use case is digital signatures by signing the message with using the sender’s private key.
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#3253

1.- A private key is a random number generated by your 265-bit wallet. Using mathematical functions, generate your public key. Both keys allow you to sign and transact and identify them as yours

2.- Encrypt information and for digital signature

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#3254
  1. Describe the concept of public and private key with your own words.
    Private key is key generated by your cmputer that represents your signatre. in addition this is a number only you know. When someone steals your key is final.

Public Key is the number generated by your computer based on your private key. this is an address to connect with everyone else and perform transactions.
2. What 2 use-cases can public key cryptography be used for?

to send Encrypted messages

cryptocurrency exchange and verification

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#3255
  1. The private key is generated randomly when you create a wallet. The private key is used in a math equation to generate your public key. The public key is like your address that people can see to send you something. The public key is signed by the private key to prove ownership of that transaction.
  2. One would be for decryption. The public key or address that someone is sending a message to is used to decrypt it and the owner of that public key has to use their private key to decrypt it. The other way is how cryptocurrencies use these keys. They use them to create digital signatures that verify the owner and verify transactions.
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#3256

1.The private key is your personal key or code to access your wallet or data. Your private key is then encrypted to generate your public key. This key is open to everyone and allows users to encrypt data and send back to you where you can use your private key to decrypt the data.
2. PGP is and example of public key cryptography. Someone can use your public key to encrypt a private message to you. You can then use your private key to decrypt the message and read it.
A bitcoin wallet is an example of using digital signatures to identify and verify holders of wallets.

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#3257
  1. public and private keys are a connected pair, and compliment each other. The public key is freely available and is used to encrypt a message. The private key is the only thing can can decrypt a message encrypted with a public key.
  2. Encryption and message signing.
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#3258
  1. Private keys for any wallet are randomly secret numbers generated by your computer. Public keys are mathematical deviations from private keys. It is impossible to find the private key if you know only the public key.
  2. Encryption and Digital Signatures.
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#3259
  1. Describe the concept of public and private key with your own words.
    Public key can be shared with anyone and can be used to send you msgs, when they use your public key the encryption that they add you the message can only be read by the one who owns the private key. The private key can also be used to verify a signature when sending a msg to someone.
  2. What 2 use-cases can public key cryptography be used for?
    encryption and digital signature. Old school pgp encryption
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#3260
  1. A private key is a generated random number. Through a formula a public key can be generated from the private key. With the public key the other party can verify the transaction by checking if that public key corresponds to the private key.
  2. For encryption and for digital signatures.
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#3261
  1. A public key is a numerical set of numbers which you alone possess and everyone can see and is used to identify the owner of the public key. A private key is a numerical set of numbers that you possess to identify oneself while being private, and only those who you want to send private information correspondence to are able to use the private key which is tethered to the public key and created by using ones public key.
  2. Public key cryptography can be used for creating wallets and sending and receiving bitcoin and/or cryptocurrency. Public key cryptography is also used for digital signatures when signing legal paperwork that is sent and received digitally.
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