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This is the wrong forum. You should this at Buzzword Bingo.[^]
There are only 10 types of people in the world, those who understand binary and those who don't.
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This is how I understand how the RSA algorithm works. I'd like to know if this is accurate.
- Entity A wishes to receive coded messages, and so generates a pair of prime numbers P & Q of a certain size (an easy task for that size), multiplies them together to get a composite prime N = P * Q and as well uses P & Q to derive (via a certain algorithm) another number E (both also easy tasks), and publishes these numbers N & E while keeping P & Q secret.
- Entity B wishes to send Entity A a coded message, and so uses the published numbers N & E to code the message (also an easy task).
- Entity A receives the message, and because A has knowledge of the secret numbers P & Q, the decryption is an easy task.
- Entity C nefariously intercepts and wants to decode the message. However, to decode the message, P & Q must be known - but the only way to uncover these numbers from N is to do a prime factorization on N, which for the size of N is an astronomically difficult task.
- When Entity B sends Entity A the coded message, the veracity of Entity B being the sender is proven in the same way, albeit as the converse.
I welcome any comments.
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Have you read this...?
https://en.wikipedia.org/wiki/Diffie%E2%80%93Hellman_key_exchange
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I like the one where they talk about someone sending a secret through the postal service.
1. Bob wants to send Alice a secret.
2. But Bob cannot send the locked up secret without sending Alice the key to unlock it with too. But, if he does that, then a postal worker could use the key himself or it could fall into someone elses hands.
3. To solve this issue, Alice sends Bob an unlocked lock that only she has the key to.
4. Bob places the lock on the box and locks the box and sends the locked box along to Alice
5. Alice receives the box and unlocks it with her unique key.
Now, just do that mathematically.
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Nice explanation.
Just a small question: How does Bob send Alice the key anytime before Step 4? Can that key not be duplicated by its bearer? (well, they were two questions )
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Bob never has Alice's secret key; he can lock the lock without it.
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Got it. This is the public-key / private-key thing, right?
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The postman has a shotgun. Case blown wide open.
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I was waiting for a response like this.
I am still waiting.
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Only plays in the UK. Did go to the proms once. Excellent.
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No, its a bunch of self obsessed morons jiggling around gormlessly to techno in Ibiza. Its been on the sodding beeb all weekend.
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I don't think it's appropriate to post links in the Lounge that only work in the UK!
How do we preserve the wisdom men will need,
when their violent passions are spent?
- The Lost Horizon
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get tunnelling software....
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Postings in the Lounge that require special software to view? You must be kidding!
How do we preserve the wisdom men will need,
when their violent passions are spent?
- The Lost Horizon
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Why cant UK people post for UK people. Is there a law against it?
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Munchies_Matt wrote: Why cant UK people post for UK people. I thought that was MySpace.com.
There are only 10 types of people in the world, those who understand binary and those who don't.
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This is typical of the kind of self elected lounge police that have given CP a bad name.
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Munchies_Matt wrote: self elected lounge police that have given CP a bad name. I was making a joke; however, on a serious note I don't see a problem with someone expecting you to post a link that everyone can get access to. That does not seem unreasonable.
There are only 10 types of people in the world, those who understand binary and those who don't.
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I thought everybody used a VPN with selectable worldwide servers these days?
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I won't lie - seeing your name here was disconcerting.
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It's almost like you're twins or something.
There are only 10 types of people in the world, those who understand binary and those who don't.
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Yeah, we badly need education reform: online education is the way to go! Otherwise...
Substitute Teacher (Key & Peele, Comedy Central) [^]
PS. frankly, eLearning should be implemented on a mass scale long time ago: what is that special they are doing in the classrooms that cannot be done online?
PPS. 2those who care: Part Numero Uno can be found here: Guy Stuck in History Class [^]
<lol>Life is 2short 2remove USB safely
modified 2-Aug-15 18:11pm.
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