NEM (XEM) Official Thread - 100% New Code - Easy To Use APIs

[jadedjack]

Thanks jadedjack. One more question. Just for scientific purposes I would like to run it on Amazon's c4.8xlarge which has 36 vCPU's (2.9 GHz Haswell processor), 60 GB RAM and an ECU of 132. Does this make sense and how can I be sure the program uses all these ressources to 100% (CPU, RAM,...)? It would be interesting, how fast it can find an address with 10 characters for example.

I tried that for jadedjack  
I ran it for a few days without success.

What i did was to run several instances of the genacc program. And monitored the cpu and memory use with htop

I didn't run them in the background with nohup. I used the utility "screen" that creates virtual terminals.
https://www.howtoforge.com/linux_screen

I think there were 16 or so running before the cpus were maxed out.

Amazon also has GPU instances, it would be interesting to see if the java code could be modified to use a GPU.

[jadedjack]

I will leave here if someone buys my 48million at 50 satoshi each.

If you are serious post your offer here
https://forum.ournem.com/trading-and-exchanges/trading-thread-3228/

[punkrock]

Thanks jadedjack. One more question. Just for scientific purposes I would like to run it on Amazon's c4.8xlarge which has 36 vCPU's (2.9 GHz Haswell processor), 60 GB RAM and an ECU of 132. Does this make sense and how can I be sure the program uses all these ressources to 100% (CPU, RAM,...)? It would be interesting, how fast it can find an address with 10 characters for example.

I tried that for jadedjack  
I ran it for a few days without success.

What i did was to run several instances of the genacc program. And monitored the cpu and memory use with htop

I didn't run them in the background with nohup. I used the utility "screen" that creates virtual terminals.
https://www.howtoforge.com/linux_screen

I think there were 16 or so running before the cpus were maxed out.

Amazon also has GPU instances, it would be interesting to see if the java code could be modified to use a GPU.

Which EC2 did you use? The c4.8xlarge?

[jadedjack]

Thanks jadedjack. One more question. Just for scientific purposes I would like to run it on Amazon's c4.8xlarge which has 36 vCPU's (2.9 GHz Haswell processor), 60 GB RAM and an ECU of 132. Does this make sense and how can I be sure the program uses all these ressources to 100% (CPU, RAM,...)? It would be interesting, how fast it can find an address with 10 characters for example.

I tried that for jadedjack  
I ran it for a few days without success.

What i did was to run several instances of the genacc program. And monitored the cpu and memory use with htop

I didn't run them in the background with nohup. I used the utility "screen" that creates virtual terminals.
https://www.howtoforge.com/linux_screen

I think there were 16 or so running before the cpus were maxed out.

Amazon also has GPU instances, it would be interesting to see if the java code could be modified to use a GPU.

Which EC2 did you use? The c4.8xlarge?

I'm not sure. I think so. It was the most powerful I saw at the time. I talked to "A Man", he says it might be possible to port the program to use a GPU. It would probably be a LOT faster then.

[punkrock]

Maybe, yes. What about the code? Is it completely open source on github? And how can it be safe, that no one can reverse engeneering the generated private key, if he knows the address? Is it impossible?

[jadedjack]

Maybe, yes. What about the code? Is it completely open source on github? And how can it be safe, that no one can reverse engeneering the generated private key, if he knows the address? Is it impossible?

The source is included in the zip file.

Here is an interesting article on crypto keys
http://www.di-mgt.com.au/cryptokeys.html

[jabo38]

Maybe, yes. What about the code? Is it completely open source on github? And how can it be safe, that no one can reverse engineering the generated private key, if he knows the address? Is it impossible?

I can't answer that well, but all the developers used went out of their way to use vanity gens for their accounts, so that gives me confidence.   

I know that a public key is calculated from a private key, and then in a 2nd step the account number is calculated from a public key.  All this is done with heavy duty cryptography.  So, it is just my guess that if you use a vanity address, it might or might not make it a little easier to reverse engineer the public address from the account address.  And if somebody does that?  so what?  It is a public address and meant to be known. 

But to reverse engineer the public address to the private address, would still be just as impossible as before. 

So, just my guess and only a guess is that a vanity key shortens the amount of time it would take one to try to crack a public address from an account number (a pointless task), but would make no difference trying to calculate a private key from a known public key, which would still be all but impossible. 

Now if somebody wanted to make a vanity private key, that I am guessing would be a security threat. 

[jabo38]

If anybody is trying to make a Bitcoin <-> NEM solution, NEM already has an awesome multisig feature set built in.  And in the future we will have mobile apps that will be able to work effectively as 2FA device that isn't relying on a third party service or third party software, but instead is all blockchain based.

But what about the on the BTC end?  Lots and lots of people have had security breach after security breach, and it has really seriously hurt BTC.  

Good news for BTC, I just read about a new solution for a $200 device.  http://techcrunch.com/2015/05/04/case-is-an-insanely-secure-hardware-bitcoin-wallet/ and that is a lot of money for sure, but for a business, this looks like the way to go.  Even for a regular person with a lot of BTC and using it often, it looks good.

But of course when the NEM mobile app comes out and adds support for a fingerprint scanning on your mobile, you will be getting they same level of security as that $200 device, but for free, and with no third party.  

[rigel]

Maybe, yes. What about the code? Is it completely open source on github? And how can it be safe, that no one can reverse engeneering the generated private key, if he knows the address? Is it impossible?

Most of the code has been open sourced, not all.
The core is open source.
I  hope remaining parts will be released soon.

Nothing is impossible  but with current technology getting the private key out of the public one will cost you much more than XEM market cap

[gimre]

Please keep the personal attacks out of here. Im sorry I want results.

I want jelly starfish.

[yshin365new]

Wow!
NEM's public interest score is 8th.
Same with NXT.

https://www.coingecko.com/en

[punkrock]

I have a question. Did poloniex.com get a stake from the Sustainability Fund or am I reading this transaction wrong?

Code:

    Block: 43618
    Type:multisig transaction Timestamp:2015-04-28 21:41:28
    Hash: a30aef15d5e8cc3780b6dc7cbbb4e79d5af48575550246d4d02a2e7a0daf8ace
    Sender: NCYP7E7S67LB4G4Y4RJWE7REFBZI4EXJ73MRKIWW
    Sender PK:719862cd7d0f4e875a6a0274c9a1738f38f40ad9944179006a54c34724c1274d
    Fee:6.000000
        Multisig:NDSUSTAAB2GWHBUFJXP7QQGYHBVEFWZESBUUWM4P
        Type:transfer transaction
        Recipient: NBZMQO7ZPBYNBDUR7F75MAKA2S3DHDCIFG775N3D
        Amount:2249828.000000 Inner fee:148.000000
        Message:
        Message type:encrypted
        Total multisig fees:24.000000
        Cosignatories
        NADMEHCFJD45GPTDL4HZP2LJLZVAZRLYWYPNEMLY
        NALICEXDMHEAVGSWHLSXDMUMCCHTBJLPKPI63IFY
        NCOSIGIMCITYNRE7XUR77OREOYFLPAILCNUYLTPD
    Total fee:172.000000
    Sig:96ad6dc671006e28e89ebc963051319872e8608ea41c376b22d9feca546c4a8a9721efd78aaecf74c6ce127593aea671716db06d07fc1653f14447b5fe530702

[kodtycoon]

I have a question. Did poloniex.com get a stake from the Sustainability Fund or am I reading this transaction wrong?

Code:

    Block: 43618
    Type:multisig transaction Timestamp:2015-04-28 21:41:28
    Hash: a30aef15d5e8cc3780b6dc7cbbb4e79d5af48575550246d4d02a2e7a0daf8ace
    Sender: NCYP7E7S67LB4G4Y4RJWE7REFBZI4EXJ73MRKIWW
    Sender PK:719862cd7d0f4e875a6a0274c9a1738f38f40ad9944179006a54c34724c1274d
    Fee:6.000000
        Multisig:NDSUSTAAB2GWHBUFJXP7QQGYHBVEFWZESBUUWM4P
        Type:transfer transaction
        Recipient: NBZMQO7ZPBYNBDUR7F75MAKA2S3DHDCIFG775N3D
        Amount:2249828.000000 Inner fee:148.000000
        Message:
        Message type:encrypted
        Total multisig fees:24.000000
        Cosignatories
        NADMEHCFJD45GPTDL4HZP2LJLZVAZRLYWYPNEMLY
        NALICEXDMHEAVGSWHLSXDMUMCCHTBJLPKPI63IFY
        NCOSIGIMCITYNRE7XUR77OREOYFLPAILCNUYLTPD
    Total fee:172.000000
    Sig:96ad6dc671006e28e89ebc963051319872e8608ea41c376b22d9feca546c4a8a9721efd78aaecf74c6ce127593aea671716db06d07fc1653f14447b5fe530702

no message attached it looks like... so it appears someone may have given the poloniex address, using it like a hot wallet, but did not give a message so it could have been sent into the abyss.. makoto will have to look into that one. maybe it can be recovered.

[yshin365new]

Or, Poloniex.com might be a nemster, too.  

[patmast3r]

I have a question. Did poloniex.com get a stake from the Sustainability Fund or am I reading this transaction wrong?

Code:

    Block: 43618
    Type:multisig transaction Timestamp:2015-04-28 21:41:28
    Hash: a30aef15d5e8cc3780b6dc7cbbb4e79d5af48575550246d4d02a2e7a0daf8ace
    Sender: NCYP7E7S67LB4G4Y4RJWE7REFBZI4EXJ73MRKIWW
    Sender PK:719862cd7d0f4e875a6a0274c9a1738f38f40ad9944179006a54c34724c1274d
    Fee:6.000000
        Multisig:NDSUSTAAB2GWHBUFJXP7QQGYHBVEFWZESBUUWM4P
        Type:transfer transaction
        Recipient: NBZMQO7ZPBYNBDUR7F75MAKA2S3DHDCIFG775N3D
        Amount:2249828.000000 Inner fee:148.000000
        Message:
        Message type:encrypted
        Total multisig fees:24.000000
        Cosignatories
        NADMEHCFJD45GPTDL4HZP2LJLZVAZRLYWYPNEMLY
        NALICEXDMHEAVGSWHLSXDMUMCCHTBJLPKPI63IFY
        NCOSIGIMCITYNRE7XUR77OREOYFLPAILCNUYLTPD
    Total fee:172.000000
    Sig:96ad6dc671006e28e89ebc963051319872e8608ea41c376b22d9feca546c4a8a9721efd78aaecf74c6ce127593aea671716db06d07fc1653f14447b5fe530702

no message attached it looks like... so it appears someone may have given the poloniex address, using it like a hot wallet, but did not give a message so it could have been sent into the abyss.. makoto will have to look into that one. maybe it can be recovered.

I'd think that the redeemer would have to hash it out with Poloniex support anyway. Not much makoto can do in that case.

[PestoQuinty]

Please keep the personal attacks out of here. Im sorry I want results.

I want jelly starfish.

I laughed so hard haha

[punkrock]

In this list is another one who used the poloniex-address.

Code:

Kienbui : NBZMQO-7ZPBYN-

Before sending this stake you should contact him or send this stake to me, instead of poloniex. They have enough.  

[kodtycoon]

I have a question. Did poloniex.com get a stake from the Sustainability Fund or am I reading this transaction wrong?

Code:

    Block: 43618
    Type:multisig transaction Timestamp:2015-04-28 21:41:28
    Hash: a30aef15d5e8cc3780b6dc7cbbb4e79d5af48575550246d4d02a2e7a0daf8ace
    Sender: NCYP7E7S67LB4G4Y4RJWE7REFBZI4EXJ73MRKIWW
    Sender PK:719862cd7d0f4e875a6a0274c9a1738f38f40ad9944179006a54c34724c1274d
    Fee:6.000000
        Multisig:NDSUSTAAB2GWHBUFJXP7QQGYHBVEFWZESBUUWM4P
        Type:transfer transaction
        Recipient: NBZMQO7ZPBYNBDUR7F75MAKA2S3DHDCIFG775N3D
        Amount:2249828.000000 Inner fee:148.000000
        Message:
        Message type:encrypted
        Total multisig fees:24.000000
        Cosignatories
        NADMEHCFJD45GPTDL4HZP2LJLZVAZRLYWYPNEMLY
        NALICEXDMHEAVGSWHLSXDMUMCCHTBJLPKPI63IFY
        NCOSIGIMCITYNRE7XUR77OREOYFLPAILCNUYLTPD
    Total fee:172.000000
    Sig:96ad6dc671006e28e89ebc963051319872e8608ea41c376b22d9feca546c4a8a9721efd78aaecf74c6ce127593aea671716db06d07fc1653f14447b5fe530702

no message attached it looks like... so it appears someone may have given the poloniex address, using it like a hot wallet, but did not give a message so it could have been sent into the abyss.. makoto will have to look into that one. maybe it can be recovered.

I'd think that the redeemer would have to hash it out with Poloniex support anyway. Not much makoto can do in that case.

how does the redeemer prove thats his stake? makoto may have to confirm to poloniex whos stake it is, other wise anyone can go to poloniex and try to claim it.

[TotalPanda]

[patmast3r]

I have a question. Did poloniex.com get a stake from the Sustainability Fund or am I reading this transaction wrong?

Code:

    Block: 43618
    Type:multisig transaction Timestamp:2015-04-28 21:41:28
    Hash: a30aef15d5e8cc3780b6dc7cbbb4e79d5af48575550246d4d02a2e7a0daf8ace
    Sender: NCYP7E7S67LB4G4Y4RJWE7REFBZI4EXJ73MRKIWW
    Sender PK:719862cd7d0f4e875a6a0274c9a1738f38f40ad9944179006a54c34724c1274d
    Fee:6.000000
        Multisig:NDSUSTAAB2GWHBUFJXP7QQGYHBVEFWZESBUUWM4P
        Type:transfer transaction
        Recipient: NBZMQO7ZPBYNBDUR7F75MAKA2S3DHDCIFG775N3D
        Amount:2249828.000000 Inner fee:148.000000
        Message:
        Message type:encrypted
        Total multisig fees:24.000000
        Cosignatories
        NADMEHCFJD45GPTDL4HZP2LJLZVAZRLYWYPNEMLY
        NALICEXDMHEAVGSWHLSXDMUMCCHTBJLPKPI63IFY
        NCOSIGIMCITYNRE7XUR77OREOYFLPAILCNUYLTPD
    Total fee:172.000000
    Sig:96ad6dc671006e28e89ebc963051319872e8608ea41c376b22d9feca546c4a8a9721efd78aaecf74c6ce127593aea671716db06d07fc1653f14447b5fe530702

no message attached it looks like... so it appears someone may have given the poloniex address, using it like a hot wallet, but did not give a message so it could have been sent into the abyss.. makoto will have to look into that one. maybe it can be recovered.

I'd think that the redeemer would have to hash it out with Poloniex support anyway. Not much makoto can do in that case.

how does the redeemer prove thats his stake? makoto may have to confirm to poloniex whos stake it is, other wise anyone can go to poloniex and try to claim it.

Well how is makoto supposed to confirm it ?
I guess the redeemer will have to provide makoto a poloniex account. Wow...he'll be delighted