President Joe Biden

NorCalDad said:
Cryptocurrencies use cryptography, it's not just the blockchain:

How Cryptography is Used in Cryptocurrency | World Crypto Index

Digital currencies like Bitcoin, Litecoin and Ethereum all use cryptography. Learn what cryptography is, how it works and how it is used in cryptocurrency.
www.worldcryptoindex.com www.worldcryptoindex.com

But even the roots of blockchain (proof of work) go back to the early 90s:

Proof of work - Wikipedia

en.wikipedia.org en.wikipedia.org

Just read the wikipedia page on blockchain:

Blockchain - Wikipedia

en.wikipedia.org en.wikipedia.org

In 1982 the first blockchain-like protocol was proposed....

I know you don't like @espola, but this is a weird hill to die on. A lot of computer science algorithms/concepts have a very rich history. Just read up on Ada Lovelace, Charles Babbage, Alan Turning, Donald Knuth, etc etc etc.
Click to expand...
One can never learn if they can’t acknowledge their mistakes.
 
NorCalDad said:
Cryptocurrencies use cryptography, it's not just the blockchain:

How Cryptography is Used in Cryptocurrency | World Crypto Index

Digital currencies like Bitcoin, Litecoin and Ethereum all use cryptography. Learn what cryptography is, how it works and how it is used in cryptocurrency.
www.worldcryptoindex.com www.worldcryptoindex.com

But even the roots of blockchain (proof of work) go back to the early 90s:

Proof of work - Wikipedia

en.wikipedia.org en.wikipedia.org

I know you don't like @espola, but this is a weird hill to die on. A lot of computer science algorithms/concepts have a very rich history. Just read up on Ada Lovelace, Charles Babbage, Alan Turning, Donald Knuth, etc etc etc.
Click to expand...

Turing (sp) is one of my heroes of computer science. The last hard course I took to get my Computer Science degree from SDSU was Introduction to Computability. The study of Turing machines was about half of the course content. The Turing test is relevant to current online interactions today - is that a person or a computer?

Turing is relevant here because he and his crew of oddballs famously broke the German Enigma machine, although if you study the real history of that (and not movies like The Imitation Game) they were helped a great deal by sloppy procedures among the German radio operators. One example is that they often chose the same 3 letters for the secondary machine settings (something like their girlfriend's initials). That's equivalent to giving away each day's settings, once the cryptanalysts realized what was happening. Another weakness was covered to some degree in the movie -- using standard formats for weather messages sent at the same time every morning and, being good Nazis, including a "Heil Hitler" as a closing salutation. Even that could have been disguised by well-known techniques such as Russian copulation (chopping a message in two parts and sending the second part first - that disguises the location of the standard opening and closing phrases and the proper placement of the two halves is usually obvious after decoding).

Blockchain techniques were first proposed in a crude form in the early '80s but no one did anything useful with them. There was a revolution in electronics in the '70s as a lot of difficult, sloppy, techniques were shown to have simple, precise analogs in the digital domain. I had the pleasure of working with fred harris (no caps in his name) an SDSU electronics/computer wizard who rode around the campus on a skateboard and had a house full of model trains. He was a consultant for our company and regularly gave seminars on the latest techniques in our conference room. At one time the speed and capability of our bigger machines (FFT sonar analyzers) were limited by the race between the capabilities of analog-to-digital converters and digital multiplier chips.
 
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NorCalDad said:
Cryptocurrencies use cryptography, it's not just the blockchain:

How Cryptography is Used in Cryptocurrency | World Crypto Index

Digital currencies like Bitcoin, Litecoin and Ethereum all use cryptography. Learn what cryptography is, how it works and how it is used in cryptocurrency.
www.worldcryptoindex.com www.worldcryptoindex.com

But even the roots of blockchain (proof of work) go back to the early 90s:

Proof of work - Wikipedia

en.wikipedia.org en.wikipedia.org

Just read the wikipedia page on blockchain:

Blockchain - Wikipedia

en.wikipedia.org en.wikipedia.org

In 1982 the first blockchain-like protocol was proposed....

I know you don't like @espola, but this is a weird hill to die on. A lot of computer science algorithms/concepts have a very rich history. Just read up on Ada Lovelace, Charles Babbage, Alan Turning, Donald Knuth, etc etc etc.
Click to expand...
Not gonna die on a hill. My point was E and his knowledge if cryptography does not give him credence in crypto currency. He has no idea what blockchain or even white paper are or do in the crypto space.

Blockchain, as far as use in crypto is fairly new..post 2k. I don't doubt a form of it was proposed earlier but being used in actual application is another thing.

Take AI. It's been around for a long time in some form but just recently has been put to use in the crypto world.

I could care less about Es "credentials " in cryptography that he learned in the 70s as they are of little use in the crypto space of today. He might be able to hack a soccer website.. doesn't mean he understands how cc work.

And you would be correct. I generally don't like people who lie at the drop of a hat.. hence my feelings for E.
 
Multi Sport said:
Not gonna die on a hill. My point was E and his knowledge if cryptography does not give him credence in crypto currency. He has no idea what blockchain or even white paper are or do in the crypto space.

Blockchain, as far as use in crypto is fairly new..post 2k. I don't doubt a form of it was proposed earlier but being used in actual application is another thing.

Take AI. It's been around for a long time in some form but just recently has been put to use in the crypto world.

I could care less about Es "credentials " in cryptography that he learned in the 70s as they are of little use in the crypto space of today. He might be able to hack a soccer website.. doesn't mean he understands how cc work.

And you would be correct. I generally don't like people who lie at the drop of a hat.. hence my feelings for E.
Click to expand...

What lies?
 
espola said:
Turing (sp) is one of my heroes of computer science. The last hard course I took to get my Computer Science degree from SDSU was Introduction to Computability. The study of Turing machines was about half of the course content. The Turing test is relevant to current online interactions today - is that a person or a computer?

Turing is relevant here because he and his crew of oddballs famously broke the German Enigma machine, although if you study the real history of that (and not movies like The Imitation Game) they were helped a great deal by sloppy procedures among the German radio operators. One example is that they often chose the same 3 letters for the secondary machine settings (something like their girlfriend's initials. That's equivalent to giving away each day's settings, once the cryptanalysts realized what was happening. Another weakness was covered to some degree in the movie -- using standard formats for weather messages sent at the same time every morning and, being good Nazis, including a "Heil Hitler" as a closing salutation. Even that could have been disguised by well-known techniques such as Russian copulation (chopping a message in two parts and sending the second part first - that disguises the location of the standard opening and closing phrases and the proper placement of the two halves is usually obvious after decoding).

Blockchain techniques were first proposed in a crude form in the early '80s but no one did anything useful with them. There was a revolution in electronics in the '70s as a lot of difficult, sloppy, techniques were shown to have simple, precise analogs in the digital domain. I had the pleasure of working with fred harris (no caps in his name) an SDSU electronics/computer wizard who rode around the campus on a skateboard and had a house full of model trains. He was a consultant for our company and regularly gave seminars on the latest techniques in our conference room. At one time the speed and capability of our bigger machines (FFT sonar analyzers) were limited by the race between the capabilities of analog-to-digital converters and digital multiplier chips.
Click to expand...

I should have added that the Enigma machine when used properly was totally adequate for 1939, or even 1945. Computing power was not strong enough then to conquer that level of encryption. Nowadays NSA's computers can probably crack Enigma-level encryption in real time once they have a good-sized collection of messages to analyze. Turing's bombes and follow-on machines developed at Bletchley Park were just about ready to pull the curtain completely off Enigma when the war ended and the British government decided to destroy all the machines. They wanted the fact that they could break secret communications to be kept secret, and not much was known to the public about Turing's accomplishments until the '70s.

A one-time pad will still always work, since it reduces a plaintext message to white noise. The problem with those is the overhead required to distribute one-time pads (or, more properly, their digital equivalents) to all the message authors and receivers in the field. There are some efforts to make pseudo-one-time pads by complicated methods so a sender and a receiver can get a new pad whenever they need one, but I don't know enough about those to describe them any more than that (and it's definitely classified anyway).

There are several websites that allow users to operate a virtual Enigma machine in order to get a good feel of how they operate. I even wote my own simulator as a hobby exercise using a free C compiler when I retired. I checked its operation against some of the online websites, but I didn't spend any time making a jazzy presentation page like those guys have done.

cryptii.com

The Enigma machine: Encrypt and decrypt online

The Enigma cipher machine is well known for the vital role it played during WWII. Alan Turing and his attempts to crack the Enigma machine code changed history. Nevertheless, many messages could not be decrypted until today.
cryptii.com

www.101computing.net

Enigma Machine Emulator - 101 Computing

The Enigma machines are a series of electro-mechanical rotor cipher machines. The first machines were invented at the end of World War I by German engineer Arthur Scherbius and were mainly used to protect commercial, diplomatic and military communication. Enigma machines became more and more...
www.101computing.net www.101computing.net
 
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Because some people in here still think this guy has all his faculties..

:At the State Department, which is tasked with making formal determinations of genocide and war crimes through an independent legal process, two officials said that Biden’s seemingly offhand declaration during a domestic policy speech in Iowa on Tuesday made it harder for the agency to credibly do its job."
 
espola said:
Did you get the answer yet? Ask Izzy - he might stumble onto the correct answer because it is so obvious, despite his long-demonstrated lack of basic arithmetic skills.
Click to expand...
Keep trying Magoof...

Maybe put your "professional" cryptographer skills to use and hack another soccer website. Or maybe you can learn how your knowledge means nothing in today's crypto space.

Or... maybe learn what the difference is between stare and compare and spying because you obviously don't know.

One can only hope...
 
Multi Sport said:
Keep trying Magoof...

Maybe put your "professional" cryptographer skills to use and hack another soccer website. Or maybe you can learn how your knowledge means nothing in today's crypto space.

Or... maybe learn what the difference is between stare and compare and spying because you obviously don't know.

One can only hope...
Click to expand...

And here we see how you work by watching one of your fables being created. You accused me of hacking Dominic's website with no proof whatsoever, and now you are using that unfounded accusation as the basis for your "hack another website" jibe.

Please continue. You're doing great. No one is laughing at you.
 
Hüsker Dü said:
Oh isn’t that cute you display your homophobia and misogyny all together. A shrink could inform you as to why you have those fears.
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Happy Easter Husker. You write like Golden Gate. Be honest with the group today for once. Are you or are you not GG? I will take you at your word. Have a blessed and beautiful day. Today is the day the Lord has made, let us rejoice and be glad. I was at Stater Bros and one of my favorite checkers took her mask off for the first time ever. She has the most beautiful smile and I told her that. She teared up Husker.
 
crush said:
Happy Easter Husker. You write like Golden Gate. Be honest with the group today for once. Are you or are you not GG? I will take you at your word. Have a blessed and beautiful day. Today is the day the Lord has made, let us rejoice and be glad. I was at Stater Bros and one of my favorite checkers took her mask off for the first time ever. She has the most beautiful smile and I told her that. She teared up Husker.
Click to expand...
Don’t be stupid.
 
espola said:
And here we see how you work by watching one of your fables being created. You accused me of hacking Dominic's website with no proof whatsoever, and now you are using that unfounded accusation as the basis for your "hack another website" jibe.

Please continue. You're doing great. No one is laughing at you.
Click to expand...
Feeling guilty about something cryptographer?
 
This is the third year in a row that Biden will be releasing his tax returns to the public. What kind of a President does he think he is, anyway?
 
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