Can I create a Bitcoin address with pen and paper ? - page 2.

shorena

copper member

Activity: 1498

Merit: 1528

No I dont escrow anymore.

Quote from: BTCfan668 on October 10, 2014, 05:54:25 PM

-snip-

In theory this would allow you to use google's resources to try to "mine" addresses for possible brain wallets

No it wouldnt. It* would help does willing to learn to understand how exactly an address is made. If you want to farm brain wallets there are allready pages out there that are way more efficient.

* "It" beeing the version that allows to create an address "by hand", if it is possible to do in a spreadsheet at all.

RocketSingh

legendary

Activity: 1662

Merit: 1050

Quote from: BTCfan668 on October 10, 2014, 05:54:25 PM

Quote from: David Rabahy on October 09, 2014, 09:34:06 AM

Just for the fun of it, inspired by Ken Shirriff, I have gone ahead and written SHA256 in a Google sheet https://docs.google.com/spreadsheets/d/1mOTrqckdetCoRxY5QkVcyQ7Z0gcYIH. It does so from scratch, so to speak; it actually calculates the two sets of constants. All steps are fully revealed demonstrating the intricate details of the algorithm.

To use it yourself, copy the sheet (File->Make a copy...) and then in your copy go to 'input'!B2 and enter up to 55 printable ASCII characters. Be patient; it can take a minute or more to complete the calculation (many thanks to Google for making compute power available). The resulting 512-bit hash will be displayed as 64 hex-digits at 'post-round 64'!A10.

donations 17MCh7jJ4dHU5iAfLPv2t8hdjGDDzn95DK

Quote from: from-the-link-you-provided

Sorry, the file you have requested does not exist.

Make sure that you have the correct URL and that the owner of the file hasn't deleted it.

Did you delete this file???

In theory this would allow you to use google's resources to try to "mine" addresses for possible brain wallets

Correct link is given in the quote below...

Quote from: David Rabahy on October 03, 2014, 11:46:54 AM

https://docs.google.com/spreadsheets/d/1mOTrqckdetCoRxY5QkVcyQ7Z0gcYIH-Dc0tu7t9f7tw now works. It computes the SHA-256 hash of the null string or a string of up to 55 printable ASCII characters. It does so from scratch, so to speak; it calculates the 2 set of constants. All steps are fully revealed demonstrating the intricate details of the algorithm.

Ken Shirriff was my inspiration. http://www.righto.com/2014/09/mining-bitcoin-with-pencil-and-paper.html

It is not supposed to mine address. It is supposed to find hashes.

BTCfan668

member

Activity: 88

Merit: 10

Quote from: David Rabahy on October 09, 2014, 09:34:06 AM

Just for the fun of it, inspired by Ken Shirriff, I have gone ahead and written SHA256 in a Google sheet https://docs.google.com/spreadsheets/d/1mOTrqckdetCoRxY5QkVcyQ7Z0gcYIH. It does so from scratch, so to speak; it actually calculates the two sets of constants. All steps are fully revealed demonstrating the intricate details of the algorithm.

To use it yourself, copy the sheet (File->Make a copy...) and then in your copy go to 'input'!B2 and enter up to 55 printable ASCII characters. Be patient; it can take a minute or more to complete the calculation (many thanks to Google for making compute power available). The resulting 512-bit hash will be displayed as 64 hex-digits at 'post-round 64'!A10.

donations 17MCh7jJ4dHU5iAfLPv2t8hdjGDDzn95DK

Quote from: from-the-link-you-provided

Sorry, the file you have requested does not exist.

Make sure that you have the correct URL and that the owner of the file hasn't deleted it.

Did you delete this file???

In theory this would allow you to use google's resources to try to "mine" addresses for possible brain wallets

BitcoinExchangeIndia.com

sr. member

Activity: 311

Merit: 264

Quote from: David Rabahy on October 09, 2014, 09:34:06 AM

Just for the fun of it, inspired by Ken Shirriff, I have gone ahead and written SHA256 in a Google sheet https://docs.google.com/spreadsheets/d/1mOTrqckdetCoRxY5QkVcyQ7Z0gcYIH. It does so from scratch, so to speak; it actually calculates the two sets of constants. All steps are fully revealed demonstrating the intricate details of the algorithm.

To use it yourself, copy the sheet (File->Make a copy...) and then in your copy go to 'input'!B2 and enter up to 55 printable ASCII characters. Be patient; it can take a minute or more to complete the calculation (many thanks to Google for making compute power available). The resulting 512-bit hash will be displayed as 64 hex-digits at 'post-round 64'!A10.

donations 17MCh7jJ4dHU5iAfLPv2t8hdjGDDzn95DK

+1

Awesome. Can a bitcoin address creation be represented the same way in excel sheet ? That is all the ecdsa, sha256, ripemd 160 step by step ?

David Rabahy

hero member

Activity: 709

Merit: 503

Just for the fun of it, inspired by Ken Shirriff, I have gone ahead and written SHA256 in a Google sheet https://docs.google.com/spreadsheets/d/1mOTrqckdetCoRxY5QkVcyQ7Z0gcYIH-Dc0tu7t9f7tw. It does so from scratch, so to speak; it actually calculates the two sets of constants. All steps are fully revealed demonstrating the intricate details of the algorithm.

To use it yourself, copy the sheet (File->Make a copy...) and then in your copy go to 'input'!B2 and enter up to 55 printable ASCII characters. Be patient; it can take a minute or more to complete the calculation (many thanks to Google for making compute power available). The resulting 512-bit hash will be displayed as 64 hex-digits at 'post-round 64'!A10.

donations 17MCh7jJ4dHU5iAfLPv2t8hdjGDDzn95DK

h4xx0r

full member

Activity: 154

Merit: 100

★Bitin.io★ - Instant Exchange

Quote from: spazzdla on October 09, 2014, 08:29:49 AM

Quote from: BrunesBTC45 on October 08, 2014, 08:21:12 PM

Why make your life complicated...

For the same reason almost every coder has written code in assembler.. to understand the basics.

You don't write ASM, it writes you. Shocked

spazzdla

legendary

Activity: 1722

Merit: 1000

Quote from: BrunesBTC45 on October 08, 2014, 08:21:12 PM

Why make your life complicated...

For the same reason almost every coder has written code in assembler.. to understand the basics.

susan234

sr. member

Activity: 308

Merit: 250

Quote from: BitcoinExchangeIndia.com on October 08, 2014, 11:28:09 AM

Quote from: susan234 on October 08, 2014, 10:49:12 AM

Quote from: BitcoinExchangeIndia.com on October 08, 2014, 10:20:47 AM

Quote from: susan234 on October 08, 2014, 10:17:52 AM

Quote from: BitcoinExchangeIndia.com on October 08, 2014, 09:12:16 AM

I recently saw a post explaining how a hash can be found with pen and paper.

http://www.youtube.com/watch?v=y3dqhixzGVo

So, can someone please explain me how can I create a Bitcoin address with pen and paper ?

haha
When I saw this news, I was scared
then reading the news carefully ,it only tells us what is the principle of bitcoin.
Please don't have too much image about creating Bitcoin with pen and paper,although you can do it in principle,but not in fact

I think U did not read my post and have gone by the image. That was the example I gave. Here I'm asking about a similar solution to create Bitcoin Address with Pen & Paper.

Are you Ken Shirriff Huh

No No... it is not mine. I have clearly stated in the OP that I saw it in another post. Please dont confuse...

ok Nice to meet you here! Grin

h4xx0r

full member

Activity: 154

Merit: 100

★Bitin.io★ - Instant Exchange

Quote from: R2D221 on October 08, 2014, 11:14:50 PM

Quote from: deepceleron on October 08, 2014, 06:55:07 PM

I am so tired of seeing that stupid blog with headlines like "mining Bitcoin with pen and paper". He only calculated four bytes of one round of SHA256 by hand. An Ivy Bridge CPU can do full SHA256 stream at 13 cycles/byte. It is not even related to Bitcoin except that it makes for a trendy headline.

They are doing it just for fun. Why don't you let people have fun?

Its not that he doesn't want to let people have fun or is discouraging their learning. He is offended when people spread false truths about a field in which he has likely spent many seasons becoming adept in , and is therefore very passionate about.

R2D221

hero member

Activity: 658

Merit: 500

Quote from: deepceleron on October 08, 2014, 06:55:07 PM

I am so tired of seeing that stupid blog with headlines like "mining Bitcoin with pen and paper". He only calculated four bytes of one round of SHA256 by hand. An Ivy Bridge CPU can do full SHA256 stream at 13 cycles/byte. It is not even related to Bitcoin except that it makes for a trendy headline.

They are doing it just for fun. Why don't you let people have fun?

jsgayo

sr. member

Activity: 476

Merit: 250

This seems pretty cool. A bit complicated, is not so easy to do.

Connor936

member

Activity: 109

Merit: 10

Technically it is possible however is not advised to do so. In order to calculate (create) a bitcoin address you will first need to think of (generate) a very large random number (people are very bad at being random so your number will likely not be random). From there you will need to convert it to (I believe) Hex 16 format, this is your private key. From there you will need to apply a very complex equation to get your public address. This is where the greatest danger likely lies, as you have the potential to make a mistake and if you do there is a good chance that you would end up giving someone an address that you do not control the private key to

Rishblitz

full member

Activity: 308

Merit: 100

I'm nothing without GOD

Quote from: deepceleron on October 08, 2014, 06:55:07 PM

I am so tired of seeing that stupid blog with headlines like "mining Bitcoin with pen and paper". He only calculated four bytes of one round of SHA256 by hand. An Ivy Bridge CPU can do full SHA256 stream at 13 cycles/byte. It is not even related to Bitcoin except that it makes for a trendy headline.

More PR for bitcoin maybe?

BrunesBTC45

member

Activity: 103

Merit: 10

Why make your life complicated...

deepceleron

legendary

Activity: 1512

Merit: 1036

I am so tired of seeing that stupid blog with headlines like "mining Bitcoin with pen and paper". He only calculated four bytes of one round of SHA256 by hand. An Ivy Bridge CPU can do full SHA256 stream at 13 cycles/byte. It is not even related to Bitcoin except that it makes for a trendy headline.

BitcoinExchangeIndia.com

sr. member

Activity: 311

Merit: 264

Quote from: Mirdude on October 08, 2014, 11:35:26 AM

Wow, why would you ever not need to create a BitCoin address?

That image shows that you have a lot of time on your hands, I'd get a job if I was you

Why do you want to create a BTC with a pen?

If u understood that how much this pen & paper post could have bring in for the author, then u would not have wrote it. Job is in your fate. GooD Luck Tongue

Mirdude

sr. member

Activity: 319

Merit: 250

Wow, why would you ever not need to create a BitCoin address?

That image shows that you have a lot of time on your hands, I'd get a job if I was you

Why do you want to create a BTC with a pen?

BitcoinExchangeIndia.com

sr. member

Activity: 311

Merit: 264

Quote from: susan234 on October 08, 2014, 10:49:12 AM

Quote from: BitcoinExchangeIndia.com on October 08, 2014, 10:20:47 AM

Quote from: susan234 on October 08, 2014, 10:17:52 AM

Quote from: BitcoinExchangeIndia.com on October 08, 2014, 09:12:16 AM

I recently saw a post explaining how a hash can be found with pen and paper.

http://www.youtube.com/watch?v=y3dqhixzGVo

So, can someone please explain me how can I create a Bitcoin address with pen and paper ?

haha
When I saw this news, I was scared
then reading the news carefully ,it only tells us what is the principle of bitcoin.
Please don't have too much image about creating Bitcoin with pen and paper,although you can do it in principle,but not in fact

I think U did not read my post and have gone by the image. That was the example I gave. Here I'm asking about a similar solution to create Bitcoin Address with Pen & Paper.

Are you Ken Shirriff Huh

No No... it is not mine. I have clearly stated in the OP that I saw it in another post. Please dont confuse...

allthingsluxury

legendary

Activity: 1540

Merit: 1029

Wow! This looks like wayyy too much work for me! Cheesy

susan234

sr. member

Activity: 308

Merit: 250

Quote from: BitcoinExchangeIndia.com on October 08, 2014, 10:20:47 AM

Quote from: susan234 on October 08, 2014, 10:17:52 AM

Quote from: BitcoinExchangeIndia.com on October 08, 2014, 09:12:16 AM

I recently saw a post explaining how a hash can be found with pen and paper.

http://www.youtube.com/watch?v=y3dqhixzGVo

So, can someone please explain me how can I create a Bitcoin address with pen and paper ?

haha
When I saw this news, I was scared
then reading the news carefully ,it only tells us what is the principle of bitcoin.
Please don't have too much image about creating Bitcoin with pen and paper,although you can do it in principle,but not in fact

I think U did not read my post and have gone by the image. That was the example I gave. Here I'm asking about a similar solution to create Bitcoin Address with Pen & Paper.

Are you Ken Shirriff Huh

Topic: Can I create a Bitcoin address with pen and paper ? - page 2. (Read 4351 times)