[ANN][BLC] Blakecoin Blake-256 for GPU/FPGA With Merged Mined Pools Stable Net

[BlueDragon747]

Hi, thanks for the bitstream. I considered installing a getwork proxy I have used in the past which could resolve the wallet client issue myself and others have had (by running multiple wallets and staggering their restarts, not a *real* fix). It could also allow pool mining.

you could setup a private pool server as it does both getwork and stratum?

[kramble]

Hi, thanks for the bitstream. I considered installing a getwork proxy I have used in the past which could resolve the wallet client issue myself and others have had (by running multiple wallets and staggering their restarts, not a *real* fix). It could also allow pool mining. https://github.com/cdhowie/Bitcoin-mining-proxy

You're welcome. BlueDragon's suggestion of running a private pool sounds useful. Alternatively if you're of a coding bent, you could just diff the changes kr105 made to cgminer 3.1.1 to get blake working on stratum and apply them to the proxy. I think its just the blake hash function plus a couple of esoteric tweaks to the sha256 hashing used in the work generation (BlueDragon swapped a double hash for a single hash).

I may take another look at the x6500 code if there is enough interest (I've also had a call to do a litecoin port). Unfortunately I've gotten so frustrated with the xilinx toolchain that there was a looming risk of burnout, so I've been taking it easy the last few weeks. Give me a while longer and I may feel up to it again.

[bzyzny]

anyone seen this and comprehend it?
https://eprint.iacr.org/2013/852.pdf
i came across it recently but am not clear on its significance. Is it relevant to blakecoin, and what kind of impact may it have? it seems to suggest a weakness in 8 round blake-256 but i am unfamiliar with what exactly a boomerang attack is.

[mogrith]

Hi, thanks for the bitstream. I considered installing a getwork proxy I have used in the past which could resolve the wallet client issue myself and others have had (by running multiple wallets and staggering their restarts, not a *real* fix). It could also allow pool mining. https://github.com/cdhowie/Bitcoin-mining-proxy

You're welcome. BlueDragon's suggestion of running a private pool sounds useful. Alternatively if you're of a coding bent, you could just diff the changes kr105 made to cgminer 3.1.1 to get blake working on stratum and apply them to the proxy. I think its just the blake hash function plus a couple of esoteric tweaks to the sha256 hashing used in the work generation (BlueDragon swapped a double hash for a single hash).

I may take another look at the x6500 code if there is enough interest (I've also had a call to do a litecoin port). Unfortunately I've gotten so frustrated with the xilinx toolchain that there was a looming risk of burnout, so I've been taking it easy the last few weeks. Give me a while longer and I may feel up to it again.

i may be getting a used one of these soon. So I have an interest in being able to change bitstream from SHA256 to Blake.

[BlueDragon747]

anyone seen this and comprehend it?
https://eprint.iacr.org/2013/852.pdf
i came across it recently but am not clear on its significance. Is it relevant to blakecoin, and what kind of impact may it have? it seems to suggest a weakness in 8 round blake-256 but i am unfamiliar with what exactly a boomerang attack is.

I was reading this the other day its even better than I thought I had assumed that a best attack of 2¹⁹² but in real world the best attack is 2²⁰⁰ which is great news  

the Boomerang attack is not a weakness in the way we are using the hash function in Blakecoin, the Boomerang attack does not provide a quicker way than the current bruteforce method it might be an issues if you are using the function to encode plain text in some sort of message system but 2²⁰⁰ is a huge number and not easily broken

the Boomerang attack = feeding the ciphered text back into the hash function with a few extra known values added then rinse and repeat and look for patterns in the way the extra known values have changed and using that knowledge try to decrypt the rest of the message
http://www.youtube.com/watch?v=z53O4bX_TBw

edit:
you would need to break both blake-256 and sha-256 in Blakecoin due to the way I have used the hash functions e.g its not 100% blake-256 or 100% sha-256 this mix brings more security as to decrypt the whole transaction you need both and do it within a few minutes which is just unlikely in the real world  

*the act of mining is a bruteforce attack and it is upto 2²⁵⁶ for a single blake-256/sha-256 hash and 2²⁵⁵ for a double sha-256 hash

[bzyzny]

excellent, thanks for explaining that

[BlueDragon747]

excellent, thanks for explaining that

no problem I find it a very interesting subject although the maths is very hard 

[saamxx]

Thats the hell with https://www.blakecoinpool.org/
My ac was locked. There is no any email to contact with support

The support link on pool said "This product comes 'as-is' without any warranty. Please check the Apache License, Version 2.0, for details."?

[BlueDragon747]

Thats the hell with https://www.blakecoinpool.org/
My ac was locked. There is no any email to contact with support

The support link on pool said "This product comes 'as-is' without any warranty. Please check the Apache License, Version 2.0, for details."?

have you sent a pm to kr105 he runs the pool @ www.blakecoinpool.org
https://bitcointalk.org/index.php?action=profile;u=12229

[Ignatius]

You're welcome. BlueDragon's suggestion of running a private pool sounds useful. Alternatively if you're of a coding bent, you could just diff the changes kr105 made to cgminer 3.1.1 to get blake working on stratum and apply them to the proxy. I think its just the blake hash function plus a couple of esoteric tweaks to the sha256 hashing used in the work generation (BlueDragon swapped a double hash for a single hash).

I may take another look at the x6500 code if there is enough interest (I've also had a call to do a litecoin port). Unfortunately I've gotten so frustrated with the xilinx toolchain that there was a looming risk of burnout, so I've been taking it easy the last few weeks. Give me a while longer and I may feel up to it again.

i may be getting a used one of these soon. So I have an interest in being able to change bitstream from SHA256 to Blake.

I would love to see more bitstreams available for the x6500, even something unrelated to cryptocurrencies like folding or similar. LTC would be great.

My experiment is still running strong 25 hours later, I only changed the timezone of the virtual machine running the blakecoin wallet and have yet to experience a problem. I did not think just changing the timezone would have any impact, I will report back if it encounters a problem.

[BlueDragon747]

My experiment is still running strong 25 hours later, I only changed the timezone of the virtual machine running the blakecoin wallet and have yet to experience a problem. I did not think just changing the timezone would have any impact, I will report back if it encounters a problem.

it might be due to fewer nodes on the network hence more time difference between nodes 

all my tests have been on GMT because of my location but the wallet does have quite a few rules for clock adjustment which I can have another look at 

please keep me updated its interesting to hear your results 

[saamxx]

Thats the hell with https://www.blakecoinpool.org/
My ac was locked. There is no any email to contact with support

The support link on pool said "This product comes 'as-is' without any warranty. Please check the Apache License, Version 2.0, for details."?

have you sent a pm to kr105 he runs the pool @ www.blakecoinpool.org
https://bitcointalk.org/index.php?action=profile;u=12229

Thanks, sent him the mes.

[luffy]

it happened to have exactly the same wallet problem with yesterday's fresh giftcoin.
the wallet is stuck and it is a scrypt coin  

[awais3344]

What do you guys think what this coin should be worth? I have been supporting the network with my hasing power. I am small guy just 2.3ghash/s. But now I am losing faith 

[BlueDragon747]

it happened to have exactly the same wallet problem with yesterday's fresh giftcoin.
the wallet is stuck and it is a scrypt coin  

if it is a timezone issue then the rules for clock adjustment come from Bitcoin!

What do you guys think what this coin should be worth? I have been supporting the network with my hasing power. I am small guy just 2.3ghash/s. But now I am losing faith 

only 1.1M Blakecoin about so its not a cheap coin to trade, the exact value just like Bitcoin is based on what the market will pay

not sure why you are losing faith

Blakecoin is designed for long term use not a pump and dump so should out last even Bitcoin, Blakecoin is only a few months old and we already have GPU/FPGA miners, pool software, block explorer(could do with more pools/block explorers).

once we see the exchanges pick up Blakecoin and a few merged coins based on the Blake-256 algo then I think Blakecoin stands a good chance at being more useful than scrypt based coins

With Blakecoin you do need some patience as it is taking a slow and steady approach, lets hope that this will create a more stable growth and lead away from the boom&bust/pump&dump style coins that have swamped this part of the forum  

[awais3344]

it happened to have exactly the same wallet problem with yesterday's fresh giftcoin.
the wallet is stuck and it is a scrypt coin  

if it is a timezone issue then the rules for clock adjustment come from Bitcoin!

What do you guys think what this coin should be worth? I have been supporting the network with my hasing power. I am small guy just 2.3ghash/s. But now I am losing faith 

only 1.1M Blakecoin about so its not a cheap coin to trade, the exact value just like Bitcoin is based on what the market will pay

not sure why you are losing faith

Blakecoin is designed for long term use not a pump and dump so should out last even Bitcoin, Blakecoin is only a few months old and we already have GPU/FPGA miners, pool software, block explorer(could do with more pools/block explorers).

once we see the exchanges pick up Blakecoin and a few merged coins based on the Blake-256 algo then I think Blakecoin stands a good chance at being more useful than scrypt based coins

With Blakecoin you do need some patience as it is taking a slow and steady approach, lets hope that this will create a more stable growth and lead away from the boom&bust/pump&dump style coins that have swamped this part of the forum  

I agree mate, Sad to see pump and dump coins getting so much attention. its killing cryptos like blakecoin. I have just actually lost faith in these everyday released coins now. Devs just premine the coins, then dump them once they're added to exchange. And people are just assholes too. They will instamine the shit out of every new coin and then sell to the late guys at over prices. This keeps on happening all day. I guess we need to start advertising blakecoins I have about 2 and half block. its not much :p But if I get some more i'll throw it your way to start some giveaway. make some good post about how blake is way more secure algo than bitcoin and scrypt. And also write its still possible to mine etc. we need to get people's attention, it's been so long this coin could do better.

[mogrith]

I'm doing a lot of giveways already. But I will donate 1000BLC for giveways Promos etc. I do believe in the long term viability of this coin. It's not a clone of anything.

[boymok]

I'm doing a lot of giveways already. But I will donate 1000BLC for giveways Promos etc. I do believe in the long term viability of this coin. It's not a clone of anything.

Maybe you can start a topic like this?

https://bitcointalk.org/index.php?topic=347927.0

[boymok]

Nobody want to sell me some blakecoins?

https://bitcointalk.org/index.php?topic=395711.0

[awais3344]

guys I can start a giveaway thread, and help get this coin get more audience and hashrate. If you believe. Donate some coins to me. All the coins donated to that address will be given out in giveaway thread. I will put in 10 blc everyday from my own balance too.