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Zoella
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April 02, 2014, 12:43:17 PM |
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With both SHA256 and SCRYPT asics mining, the network will be quite secure...
Why do multiple algos make it more secure? Isn't it basically as secure as the weakest link, i.e. the algo with (relatively) least mining power? Not really. One could crash and burn, while the other 4 maintained 80%. A 51% attack on a single algo is really only about an 11% attack on the coin itself. Somebody please correct me if I'm wrong, but that was my assumption. |
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ssshhh
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April 02, 2014, 12:47:20 PM |
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With both SHA256 and SCRYPT asics mining, the network will be quite secure...
Why do multiple algos make it more secure? Isn't it basically as secure as the weakest link, i.e. the algo with (relatively) least mining power? Not really. One could crash and burn, while the other 4 maintained 80%. A 51% attack on a single algo is really only about an 11% attack on the coin itself. Somebody please correct me if I'm wrong, but that was my assumption. Mine too.. I also could be mistaken. Maybe some clarification is required.. |
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iamphoenix
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April 02, 2014, 01:08:40 PM |
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Aah finally we got the first Block:  So it seems our Skein Implementation is also working fine. So we got: https://myrgrs.suprnova.ccand https://myrskein.suprnova.cc exclusively for Myriad now :-) I've also patched Stratum against the diff-Attack, could the "bad-ass" Diff1 Faker please try to fake some shares at our Myrskein Pool ? He should get "Share above target" and banned within 60 seconds. To the moooooon ! :-) Thanks oc nice pool im mining there got my gtx580 on grostl and my 280x on skein... now i need to get my asic sha256 on a better pool |
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foodies123
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April 02, 2014, 01:15:21 PM |
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With both SHA256 and SCRYPT asics mining, the network will be quite secure...
Why do multiple algos make it more secure? Isn't it basically as secure as the weakest link, i.e. the algo with (relatively) least mining power? since the algos are independent one algo compromised means only 20% of the blockchains is compromised. unlike chained algos like x11 where the algos are sequential and if one link is broken the chain is broken. myr ftw. |
nope
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Zoella
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April 02, 2014, 01:22:53 PM |
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With both SHA256 and SCRYPT asics mining, the network will be quite secure...
Why do multiple algos make it more secure? Isn't it basically as secure as the weakest link, i.e. the algo with (relatively) least mining power? since the algos are independent one algo compromised means only 20% of the blockchains is compromised. unlike chained algos like x11 where the algos are sequential and if one link is broken the chain is broken. myr ftw. Out of curiosity, what is the possibility of compromising 3 algos onto a single fork that would constitute a 51%? Even if someone were able to force a fork on 3 of the 5, wouldn't that be 3 different forks? Is it possible to force a compromised algo to an existing fork? |
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notsoshifty
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April 02, 2014, 01:35:11 PM
Last edit: April 02, 2014, 01:56:39 PM by notsoshifty |
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Why do multiple algos make it more secure? Isn't it basically as secure as the weakest link, i.e. the algo with (relatively) least mining power?
Not really. One could crash and burn, while the other 4 maintained 80%. A 51% attack on a single algo is really only about an 11% attack on the coin itself. Somebody please correct me if I'm wrong, but that was my assumption. I don't know how "longest/best chain" is calculated on a blockchain supporting multiple algos with independent difficulties. If someone has some new technique to massively improve hashrate on one of the less popular algos (e.g. an ASIC, or an exploit for a compromised algo), what is to stop him removing the last 10 entries in the blockchain (no matter what algos those blocks were secured by) and replacing them with his own using his preferred algo? Can someone present a structured argument either way? |
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restless
Legendary
 Offline
Activity: 1151
Merit: 1001
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April 02, 2014, 01:52:37 PM |
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From poolerino http://myr-groestl.poolerino.com/index.php?page=statistics&action=poolContributor Hashrates
Rank User Name KH/s MYR/Day
1 oxymajner 23,321,672 1,254,160.351
2 oxymajner3 12,082,280 649,743.985
3 anonymous 179,516 9,653.772 In same time, watching valid shares, he has like 15x more shares than next one, NOT 195x as from live-hashrate OK, so this guys the equivalent of 2350 videocards with 6970 ?! (i have one and it makes ~ 15MH/s on myr-groestl) It seems he either uses ASICs (lots) or he hacked myr-groestl ... I think its second, because his shares are NOT so much |
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notsoshifty
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April 02, 2014, 01:56:23 PM |
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Why do multiple algos make it more secure? Isn't it basically as secure as the weakest link, i.e. the algo with (relatively) least mining power?
since the algos are independent one algo compromised means only 20% of the blockchains is compromised. unlike chained algos like x11 where the algos are sequential and if one link is broken the chain is broken. myr ftw. With a single blockchain secured by five algos (with independent difficulties), what does it mean for "20% of the blockchains" to be compromised? Surely a blockchain is either compromised or it's not. Can you expand please? |
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foodies123
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April 02, 2014, 02:23:22 PM |
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Why do multiple algos make it more secure? Isn't it basically as secure as the weakest link, i.e. the algo with (relatively) least mining power?
since the algos are independent one algo compromised means only 20% of the blockchains is compromised. unlike chained algos like x11 where the algos are sequential and if one link is broken the chain is broken. myr ftw. With a single blockchain secured by five algos (with independent difficulties), what does it mean for "20% of the blockchains" to be compromised? Surely a blockchain is either compromised or it's not. Can you expand please? It's only a metaphorical picture. If a malicious attacker would gain leverage over 1 algo (20% of the blockchain) there are 4 other algos that will secure the blockchain, thus the blockchain will remain unaffected. We only use the percentages to give a better idea of what a 51% attack would look like to myr. There was a 51% accident on scrypt last week about the same time it happened on AUR. You know what happened ? Nothing. The pool with 51% of scrypt forked and that's about it, the blockchain had no reaction whatsover to the fork created and ignored it like business as usual. Like it was explained above 51% in one algo is only about 11% of the whole hash power. It's like cutting off a reptile's limb, the rest of the body remains unaffected and it will grow back the said limb imediately.  |
nope
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foodies123
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April 02, 2014, 02:23:46 PM |
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From poolerino http://myr-groestl.poolerino.com/index.php?page=statistics&action=poolContributor Hashrates
Rank User Name KH/s MYR/Day
1 oxymajner 23,321,672 1,254,160.351
2 oxymajner3 12,082,280 649,743.985
3 anonymous 179,516 9,653.772 In same time, watching valid shares, he has like 15x more shares than next one, NOT 195x as from live-hashrate OK, so this guys the equivalent of 2350 videocards with 6970 ?! (i have one and it makes ~ 15MH/s on myr-groestl) It seems he either uses ASICs (lots) or he hacked myr-groestl ... I think its second, because his shares are NOT so much someone tell mike asap. I'm at work. EDIT: nevermind he took care of it. |
nope
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foodies123
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April 02, 2014, 02:25:23 PM |
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With both SHA256 and SCRYPT asics mining, the network will be quite secure...
Why do multiple algos make it more secure? Isn't it basically as secure as the weakest link, i.e. the algo with (relatively) least mining power? since the algos are independent one algo compromised means only 20% of the blockchains is compromised. unlike chained algos like x11 where the algos are sequential and if one link is broken the chain is broken. myr ftw. Out of curiosity, what is the possibility of compromising 3 algos onto a single fork that would constitute a 51%? Even if someone were able to force a fork on 3 of the 5, wouldn't that be 3 different forks? Is it possible to force a compromised algo to an existing fork? It most likely is true. I don't think you can force 3 algos on one single fork but can only create 3 different forks. |
nope
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Tekkerr
Member
Offline
Activity: 82
Merit: 10
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April 02, 2014, 02:25:32 PM |
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From poolerino http://myr-groestl.poolerino.com/index.php?page=statistics&action=poolContributor Hashrates
Rank User Name KH/s MYR/Day
1 oxymajner 23,321,672 1,254,160.351
2 oxymajner3 12,082,280 649,743.985
3 anonymous 179,516 9,653.772 In same time, watching valid shares, he has like 15x more shares than next one, NOT 195x as from live-hashrate OK, so this guys the equivalent of 2350 videocards with 6970 ?! (i have one and it makes ~ 15MH/s on myr-groestl) It seems he either uses ASICs (lots) or he hacked myr-groestl ... I think its second, because his shares are NOT so much someone tell mike asap. I'm at work. EDIT: nevermind he took care of it. Already is banned and frozen, check poolerino's chat  Allthough I'm very sceptical nowaday's for mining, until startum is permanently fixed |
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gpuminer
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April 02, 2014, 02:36:16 PM |
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Mike, It is taking too long to find blocks today on GROESTL POOL despite good hashrate. Could you please check if everything is working fine since other pools has issues..Thank you.. yeah, it look very strange. I was mining there back when the pool hash rate was around 350 mh and the pool was finding on average 1-2 block per hour, sometimes hitting 4 block if lucky. With the current hashrate would expect to see at least 5 blocks per hour. I think someone in the pool is faking share. |
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Mikellev
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April 02, 2014, 02:44:11 PM |
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Mike, It is taking too long to find blocks today on GROESTL POOL despite good hashrate. Could you please check if everything is working fine since other pools has issues..Thank you.. yeah, it look very strange. I was mining there back when the pool hash rate was around 350 mh and the pool was finding on average 1-2 block per hour, sometimes hitting 4 block if lucky. With the current hashrate would expect to see at least 5 blocks per hour. I think someone in the pool is faking share. Yes, there was a user named oxymajner, he did send 34gh/s out of nothing. First time we see that, as we fixed startum nicely with ocminers help against such fake shares. Blocked him, banned him, frozen his account and coins. Sorry about that. |
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gpuminer
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April 02, 2014, 02:55:19 PM |
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Mike, It is taking too long to find blocks today on GROESTL POOL despite good hashrate. Could you please check if everything is working fine since other pools has issues..Thank you.. yeah, it look very strange. I was mining there back when the pool hash rate was around 350 mh and the pool was finding on average 1-2 block per hour, sometimes hitting 4 block if lucky. With the current hashrate would expect to see at least 5 blocks per hour. I think someone in the pool is faking share. Yes, there was a user named oxymajner, he did send 34gh/s out of nothing. First time we see that, as we fixed startum nicely with ocminers help against such fake shares. Blocked him, banned him, frozen his account and coins. Sorry about that. you might want to consider disabling "anonymous" user so that other user can spot who is faking. I can deploy 1 real hasher "anonymous" and fake 3 other "anonymous" miner. U can see block finder is often anonymous , but we can't see if the other anonymous is actually find block with their hash. If someone with high hash don't find block in a long time , we can see and inform pool operator |
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foodies123
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April 02, 2014, 04:02:18 PM |
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be on the lookout on cryptoRus skein. miners looking fishy as fuck again. curently mining on poolerino's groestl |
nope
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DeeSome
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April 02, 2014, 04:14:02 PM |
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Can someone give an idiots guide as to how it is possible to fake shares on a pool, I'm not into the technical stuff and don't want to be wasting electric if I'm not getting my fair shares. |
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lunswor
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April 02, 2014, 04:41:38 PM |
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Foodies what do you think is wrong? find me in irc. I've been monitoring things very closely all day (well actually since the pool was live).
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Mikellev
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April 02, 2014, 04:42:25 PM |
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Can someone give an idiots guide as to how it is possible to fake shares on a pool, I'm not into the technical stuff and don't want to be wasting electric if I'm not getting my fair shares. Million ways. Thats why there cant be THE FINAL fix for stratum so fast. You cant find all the tricks b4 someone tries them. |
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