How does recieverthe receiver compute the private key when using RSA?

I understand the public key and the private key isare generated at the same time. The encryptionpayload is doneencrypted with the public key. Sender Alice sends public key $[n,e]$ and cipher text $C$ to Bob.

Now is Bob recomputing the private key $d$?

If Bob is computing the private key $d$, can a "Man in the Middle" who gets the public key and cipher text can also do compute the same?

Or is there a scenario thatin which both Alice and Bob knowsknow the value of $p$ and $q$?

I am confused. Please help me understand this in a scenario assuming Alice and Bob are located in two different geographical locations.

How does reciever compute private key when using RSA?

I understand the public key and the private key is generated at the same time. The encryption is done with public key. Sender Alice sends public key $[n,e]$ and cipher text $C$ to Bob.

Now is Bob recomputing the private key $d$?

If Bob is computing the private key $d$, a "Man in the Middle" who gets the public key and cipher text can also do compute the same?

Or is there a scenario that both Alice and Bob knows the value of $p$ and $q$?

I am confused. Please help me understand this in a scenario assuming Alice and Bob are located in two different geographical locations.

How does the receiver compute the private key when using RSA?

I understand the public key and the private key are generated at the same time. The payload is encrypted with the public key. Sender Alice sends public key $[n,e]$ and cipher text $C$ to Bob.

Now is Bob recomputing the private key $d$?

If Bob is computing the private key $d$, can a "Man in the Middle" who gets the public key and cipher text also compute the same?

Or is there a scenario in which both Alice and Bob know the value of $p$ and $q$?

I am confused. Please help me understand this in a scenario assuming Alice and Bob are located in two different geographical locations.

Tweeted twitter.com/StackCrypto/status/809962135170281473
deleted 30 characters in body; edited title
Source Link
e-sushi
  • 17.2k
  • 12
  • 73
  • 212

RSA Cryptosystem- How does reciever compute private key when using RSA?

Ok I dont understand few things please help.

I understandthe public key and the private key is generated at the same time. The encryption is done with public key. Sender Alice sends public key [n,e]$[n,e]$ and cipher text C$C$ to Bob. Now

Now is Bob recomputing the private key "d"$d$? If

If Bob is computing the private key d$d$, a "Man in the Middle" who gets the public key and cipher text can also do compute the same?

Or is there a scenario that both Alice and Bob knows the value of p$p$ and q$q$?

I am confused. Please help explainingme understand this in a scenario assuming Alice and Bob are located in two different geographical locations.

RSA Cryptosystem- How does reciever compute private key?

Ok I dont understand few things please help.

I understand public key and private key is generated same time. The encryption is done with public key. Sender Alice sends public key [n,e] and cipher text C to Bob. Now is Bob recomputing the private key "d"? If Bob is computing the private key d, a "Man in the Middle" who gets the public key and cipher text can also do compute the same?

Or is there a scenario that both Alice and Bob knows the value of p and q?

I am confused. Please help explaining Alice and Bob in two different geographical locations

How does reciever compute private key when using RSA?

I understand the public key and the private key is generated at the same time. The encryption is done with public key. Sender Alice sends public key $[n,e]$ and cipher text $C$ to Bob.

Now is Bob recomputing the private key $d$?

If Bob is computing the private key $d$, a "Man in the Middle" who gets the public key and cipher text can also do compute the same?

Or is there a scenario that both Alice and Bob knows the value of $p$ and $q$?

I am confused. Please help me understand this in a scenario assuming Alice and Bob are located in two different geographical locations.

Source Link

RSA Cryptosystem- How does reciever compute private key?

Ok I dont understand few things please help.

I understand public key and private key is generated same time. The encryption is done with public key. Sender Alice sends public key [n,e] and cipher text C to Bob. Now is Bob recomputing the private key "d"? If Bob is computing the private key d, a "Man in the Middle" who gets the public key and cipher text can also do compute the same?

Or is there a scenario that both Alice and Bob knows the value of p and q?

I am confused. Please help explaining Alice and Bob in two different geographical locations