- Using private key, public key can be generated. It’s no way to get private key from public key based on math. two keys are one pair. Public key opens to everyone.
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- encrypt and decrypt in secure communication;
- issue digital signature via private key, and verify digital signature with public key
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Private key is only available to the user who created it while public key is available to the general public.
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Cryptocurrency and public key digital signing
- Private key is a random number genetated by the computer. It has to be kept secret.
Public key is derived from Private key. Public one is free to share with anyone. - One is to encrypt messages, another one to ensure identity in the crypto currency world.
Homework on Public and Private Keys - Questions
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Describe the concept of public and private key with your own words. - Private key is a set of generated numbers that you should hold for yourself and which generates a public key which other persons can see and use to send you funds,messages etc.
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What 2 use-cases can public key cryptography be used for? The public key cryptography can be used for encription and digital signatures.
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Public and private keys are related in that the public key is a hash of the private key. Only the private key can decrypt information encrypted using the public key.
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Public key cryptography can be used for secure messaging over an open channel and also for creating cryptocurrency wallet addresses. In the first instance only the holder of the private key can decrypt a message sent using the public key and in the second instance only the private key holder can move funds from a wallet address created using the public key.
Continuing the discussion from Homework on Public and Private Keys - Questions:
1.The public key is shared as an identity for the network. Private key is the password for opening any encryption message or transaction.
- Encryption and digital signature. This is used in different ways but mostly private messages and money transfers.
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A private key is a random number set generated on my side of the network, by my computer. A public key is then derived from my private key and other users can use this public key to send me information. The private key is required to read information sent to the public key. It is not possible to determine the private key from inspection of the public key. Only the person who is in possession of the private key can therefore read the messages sent to the public key.
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Encryption and digital signatures.
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Private key is a random number, which is designed to be know only for the wallets owner. Public key is made from private key and it is used as an address of the owners wallet. For the better explanation, I would use this analogy: Public key is like a mail box (the address is know for everyone, anyone could send you a mail), and Private key as a key to open that mail box lock (anyone having this key, could open it). Also, in Bitcoin you use Private key not just open you wallet, but also to sing a transactions.
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Digital signatures and encription.
- Describe the concept of public and private key with your own words.
The private key gets generated by your computer and is yours to keep and not to share.
You can then derive a public key from the private key using a mathematical algorithm such as SHA-256. - What 2 use-cases can public key cryptography be used for?
You can use a public key to in crypt a message but it can also be used for a digital signiture.
- Describe the concept of public and private key with your own words.
a public key is shared so people can send you bitcoins to that key, your private key is used to access the funds - What 2 use-cases can public key cryptography be used for?
signing a message to prove the wallet belongs to you or to send funds
1. Describe the concept of public and private key with your own words.
Private Key is a random number which you need to keep secret
Public Key is produced from the Private Key and is used to decipher the data. You can not guess what the private key is from knowing the public key.
2. What 2 use-cases can public key cryptography be used for?
Encrypt messages and digital signatures
- Describe the concept of public and private key with your own words.
Public and private keys are means of encrypting data. A private key is generated as a random number. A public key is then derived from that private key. A public key acts as an encryption lock box that only has one key to open that lock box. That one key is the private key which the public key was derived from. When sending encrypted data, the data is attached to the public key (put in the lock box). In order to access the data the private key (associated key to the lock box) must be used to decrypt the data attached to the public key. The public key cannot be used to decipher the private key.
A public key can also be used to identify/confirm that data or transactions are performed by private key it was derived from.
- What 2 use-cases can public key cryptography be used for?
Public key cryptography can be used for encryption, and used for digital signatures.
Encryption; encrypting messages or data sent from one party to another.
Digital signatures; Verifying identity of one party by another.
- You can generate a public key with your private key ( mathematical hashfunction ), but not vice versa. You can use your public key to receive transactions. You can show it every one. With your Private key you can send transactions because you verified it with your privte key. The private key needs to be stored in a safe place. Not your keys…not your coins.
2 -Digital Signature
- Encrypting
- Describe the concept of public and private key with your own words. A private key can generate a public key. If an encrypted information is sent to a public address, only the recipient with the private key can see the encrypted information.
- What 2 use-cases can public key cryptography be used for?
Private key to create a public key to send Digital signature to compare for a true signature, for submitting bitcoin transactions. Storing your digital currency in your wallet. Private key is totally private and should only be know by owner.
- The two generally work as a pair. The Private Key is typically a random number generated by ones computer. Via a mathematically based algorithm the private key is used to generate a public key. In its simplest from one can view a Private key as a lock and Public key is like an account number. The relationship is their mathematical relationship
- The two uses are for (a) Encrypting information e.g thus keeping the information private when transmitted on an ope channel. (b)Generating Digital signatures for verifying transactions or data sent in a transmission. They are also derived from private key but used for that specific transaction only
1-A private key is a random large combination of numbers and letters generated by a computer that allows access to the encrypted information associated with that private key. A public key is then generated based on that private key so that another party can have limited access to that data.
2- Digital signatures, secure payment
1.public key is the key which is basically available to everyone(sender and receiver both).
private key is the key which is kept secret. Both sender and Receiver have their own
private key.
In public key cryptography, for encryption procedure receiver’s public key is used whereas for decryption procedure receiver’s private key is required.
2.encryption and digital signature
- Public and Private Keys Described
The Public and Private key pair comprise of two uniquely related cryptographic keys (basically long random numbers). The private key is generated first, and the public key is derived based on the private key. The Public Key is made available to the public via a publicly accessible repository or directory. On the other hand, the Private Key remains confidential to its owner.
Owing to the mathematical relationship between the key pair, whatever is encrypted with a Public Key may only be decrypted by its corresponding Private Key and vice versa.
- Public and Private Key Use Cases
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Authentication with Digital Signatures
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Messaging applications, like Whatsapp, use end-to-end encryption to protect the confidentiality and privacy of the users’ communications and to authenticate the users.
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We have both Private and Public Keys. Private is used to sign transaction to public keys. don’t lose your private keys. keep your private keys safe and off the exchanges.
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Sending money or encrypted messages.
- A sender of a msg generates a random private key (which only sender knows). The msg is encrypted using the private key. A public key is derived from the private key and is known by the receiver of the msg. So only the receiver can decrypt the msg as the public key is associated with the private key.
- Encryption (to encrypt the msg or data in the transmission), and digital signatures (so receiver of msg or data can verify it was sent by the correct sender).