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Author Topic: [BOUNTY] Lost Electrum password  (Read 10008 times)
Noitev
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April 08, 2013, 07:16:39 AM
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I lost my electrum password. (I don't recall ever making one, but whatever.) here is my electrum wallet.dat for the wallet. it has around 1.8-1.9 btc in it. if you can crack it, you can keep all btc in excess of 1 BTC (of course you can take them all, but I 'd appreciate some of it back...) (15HC2A9VGFMRYEHy3e49pUTgmmcGR5sFco)

{'change_addresses': ['15Cmq32vtG6PNAY1bTh8ks2Zez4CVELvvH'], 'expert_mode': False, 'use_encryption': True, 'labels': {}, 'fee_per_kb': 20000, 'seed': 'BZWAQbfF6GbwSXmSrd5DqOVnnin7264i1lBvzfb1jzJxvhcUPmtCL/qdjGm3AcbrkUb+Uz4BFAIwIAOKDkCRyQ==', 'accounts': {0: {0: ['1PBP2RjoEqzS4RQFqjPvjNBnMi1vxKEDny', '1JSt31iH61ZztWGer1CNDjimruFkEFAfZ7', '1fFWJgEKygq45EFTGG4AxT38H4PsJRJS6', '1C87oDR4WdnkzaVYTYo5PZpDs91rkma3e5', '1AWBA6SS1jYRccUJMh5MCcVU8A1VVS7hzz', '17a3YtEpmyn6UuWkKbWDdyvr4KQ9quwWtU'], 1: ['15Cmq32vtG6PNAY1bTh8ks2Zez4CVELvvH', '1BdhBepRV21JmR2tfUTmAZx36DYJ5jE1tt', '1LKnCv5PaoaEpjth9T7EcqdRhqhrHEoBks'], 'name': 'Main account'}}, 'aliases': {}, 'fee': 10000, 'contacts': [], 'auto_cycle': True, 'master_public_key': '240bb0ea5852e2c07d769225602c4159d9e78337053805aa68ac9cb1396c533995872ea6e1d8fe3 f11f00eea655a10f9bdc3ec49b15f9874f7244acfa343e420', 'column_widths': {'receive': [[370], [370, 200, 130]], 'contacts': [350, 330], 'history': [40, 140, 350, 140]}, 'column-widths': {'receive': [[0, 310, 200, 0, 0, 0], [50, 310, 200, 0, 130, 142], [50, 310, 200, 130, 130, 10]], 'history': [40, 140, 350, 140, 162], 'contacts': [350, 330, 152]}, 'winpos-qt': [323, 112, 840, 435], 'gap_limit': 5, 'seed_version': 4, 'requested_amounts': {}, 'addr_history': {'15Cmq32vtG6PNAY1bTh8ks2Zez4CVELvvH': [], '1C87oDR4WdnkzaVYTYo5PZpDs91rkma3e5': [], '1BdhBepRV21JmR2tfUTmAZx36DYJ5jE1tt': [], '1fFWJgEKygq45EFTGG4AxT38H4PsJRJS6': [], '1PBP2RjoEqzS4RQFqjPvjNBnMi1vxKEDny': [(u'c25543061eeb5a587a906ff46f60fdb99da0daf69406b8fcddf5b30d875be8fa', 224778)], '1LKnCv5PaoaEpjth9T7EcqdRhqhrHEoBks': [], '17a3YtEpmyn6UuWkKbWDdyvr4KQ9quwWtU': [], '1JSt31iH61ZztWGer1CNDjimruFkEFAfZ7': [], '1AWBA6SS1jYRccUJMh5MCcVU8A1VVS7hzz': []}, 'prioritized_addresses': [], 'frozen_addresses': [], 'use_change': True, 'transactions': {u'c25543061eeb5a587a906ff46f60fdb99da0daf69406b8fcddf5b30d875be8fa': '0100000001fb1c03f95962fe18119d829314cec60dc79268200fcc76d16533aee8db78fb7701000 0008a4730440220029918eaf35ff9ecb37e8ac44da167c0f49510e545ac56b36dc7c15b77d92b96 02201a4487793792a6b12fd93990daa3ef351dfa0639f10126873a652c08718eb769014104b31b2 c6f63bd34f600f5ad400f82d42eee73655dae0b7fe3a3f381f14bf7a6e70c1ab88cb29fc808ccba cbeb4e977b179c77435f62209adb7d7650d28a47f741ffffffff027f66040b000000001976a914f 3494fe3a14b79e5a4c79c18b385f6d4f6b2931988ac7128350d000000001976a914cc189b504d9b a4ec2e84b65931a86c156c18d52988ac00000000'}, 'console-history': [], 'num_zeros': 0, 'proxy': None, 'authorities': {}, 'receipts': {}, 'addresses': ['1PBP2RjoEqzS4RQFqjPvjNBnMi1vxKEDny', '1JSt31iH61ZztWGer1CNDjimruFkEFAfZ7', '1fFWJgEKygq45EFTGG4AxT38H4PsJRJS6', '1C87oDR4WdnkzaVYTYo5PZpDs91rkma3e5', '1AWBA6SS1jYRccUJMh5MCcVU8A1VVS7hzz', '17a3YtEpmyn6UuWkKbWDdyvr4KQ9quwWtU'], 'qt_receive_tab_mode': 0, 'language': '', 'conversion_currency': 'BRL', 'gui': 'classic', 'server': u'electrum.bytesized-hosting.com:50001:t', 'imported_keys': {}, 'verified_tx3': {u'c25543061eeb5a587a906ff46f60fdb99da0daf69406b8fcddf5b30d875be8fa': (224778, 1362713115, 49)}, 'verified_tx2': {u'c25543061eeb5a587a906ff46f60fdb99da0daf69406b8fcddf5b30d875be8fa': (224778, 1362713115)}, 'history': {}}

Good luck!

[mods if this is in the wrong section, sorry Sad]

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April 08, 2013, 07:25:54 AM
 #2

I lost my electrum password. (I don't recall ever making one, but whatever.) here is my electrum wallet.dat for the wallet. it has around 1.8-1.9 btc in it. if you can crack it, you can keep all btc in excess of 1 BTC (of course you can take them all, but I 'd appreciate some of it back...) (15HC2A9VGFMRYEHy3e49pUTgmmcGR5sFco)

{'change_addresses': ['15Cmq32vtG6PNAY1bTh8ks2Zez4CVELvvH'], 'expert_mode': False, 'use_encryption': True, 'labels': {}, 'fee_per_kb': 20000, 'seed': 'BZWAQbfF6GbwSXmSrd5DqOVnnin7264i1lBvzfb1jzJxvhcUPmtCL/qdjGm3AcbrkUb+Uz4BFAIwIAOKDkCRyQ==', 'accounts': {0: {0: ['1PBP2RjoEqzS4RQFqjPvjNBnMi1vxKEDny', '1JSt31iH61ZztWGer1CNDjimruFkEFAfZ7', '1fFWJgEKygq45EFTGG4AxT38H4PsJRJS6', '1C87oDR4WdnkzaVYTYo5PZpDs91rkma3e5', '1AWBA6SS1jYRccUJMh5MCcVU8A1VVS7hzz', '17a3YtEpmyn6UuWkKbWDdyvr4KQ9quwWtU'], 1: ['15Cmq32vtG6PNAY1bTh8ks2Zez4CVELvvH', '1BdhBepRV21JmR2tfUTmAZx36DYJ5jE1tt', '1LKnCv5PaoaEpjth9T7EcqdRhqhrHEoBks'], 'name': 'Main account'}}, 'aliases': {}, 'fee': 10000, 'contacts': [], 'auto_cycle': True, 'master_public_key': '240bb0ea5852e2c07d769225602c4159d9e78337053805aa68ac9cb1396c533995872ea6e1d8fe3 f11f00eea655a10f9bdc3ec49b15f9874f7244acfa343e420', 'column_widths': {'receive': [[370], [370, 200, 130]], 'contacts': [350, 330], 'history': [40, 140, 350, 140]}, 'column-widths': {'receive': [[0, 310, 200, 0, 0, 0], [50, 310, 200, 0, 130, 142], [50, 310, 200, 130, 130, 10]], 'history': [40, 140, 350, 140, 162], 'contacts': [350, 330, 152]}, 'winpos-qt': [323, 112, 840, 435], 'gap_limit': 5, 'seed_version': 4, 'requested_amounts': {}, 'addr_history': {'15Cmq32vtG6PNAY1bTh8ks2Zez4CVELvvH': [], '1C87oDR4WdnkzaVYTYo5PZpDs91rkma3e5': [], '1BdhBepRV21JmR2tfUTmAZx36DYJ5jE1tt': [], '1fFWJgEKygq45EFTGG4AxT38H4PsJRJS6': [], '1PBP2RjoEqzS4RQFqjPvjNBnMi1vxKEDny': [(u'c25543061eeb5a587a906ff46f60fdb99da0daf69406b8fcddf5b30d875be8fa', 224778)], '1LKnCv5PaoaEpjth9T7EcqdRhqhrHEoBks': [], '17a3YtEpmyn6UuWkKbWDdyvr4KQ9quwWtU': [], '1JSt31iH61ZztWGer1CNDjimruFkEFAfZ7': [], '1AWBA6SS1jYRccUJMh5MCcVU8A1VVS7hzz': []}, 'prioritized_addresses': [], 'frozen_addresses': [], 'use_change': True, 'transactions': {u'c25543061eeb5a587a906ff46f60fdb99da0daf69406b8fcddf5b30d875be8fa': '0100000001fb1c03f95962fe18119d829314cec60dc79268200fcc76d16533aee8db78fb7701000 0008a4730440220029918eaf35ff9ecb37e8ac44da167c0f49510e545ac56b36dc7c15b77d92b96 02201a4487793792a6b12fd93990daa3ef351dfa0639f10126873a652c08718eb769014104b31b2 c6f63bd34f600f5ad400f82d42eee73655dae0b7fe3a3f381f14bf7a6e70c1ab88cb29fc808ccba cbeb4e977b179c77435f62209adb7d7650d28a47f741ffffffff027f66040b000000001976a914f 3494fe3a14b79e5a4c79c18b385f6d4f6b2931988ac7128350d000000001976a914cc189b504d9b a4ec2e84b65931a86c156c18d52988ac00000000'}, 'console-history': [], 'num_zeros': 0, 'proxy': None, 'authorities': {}, 'receipts': {}, 'addresses': ['1PBP2RjoEqzS4RQFqjPvjNBnMi1vxKEDny', '1JSt31iH61ZztWGer1CNDjimruFkEFAfZ7', '1fFWJgEKygq45EFTGG4AxT38H4PsJRJS6', '1C87oDR4WdnkzaVYTYo5PZpDs91rkma3e5', '1AWBA6SS1jYRccUJMh5MCcVU8A1VVS7hzz', '17a3YtEpmyn6UuWkKbWDdyvr4KQ9quwWtU'], 'qt_receive_tab_mode': 0, 'language': '', 'conversion_currency': 'BRL', 'gui': 'classic', 'server': u'electrum.bytesized-hosting.com:50001:t', 'imported_keys': {}, 'verified_tx3': {u'c25543061eeb5a587a906ff46f60fdb99da0daf69406b8fcddf5b30d875be8fa': (224778, 1362713115, 49)}, 'verified_tx2': {u'c25543061eeb5a587a906ff46f60fdb99da0daf69406b8fcddf5b30d875be8fa': (224778, 1362713115)}, 'history': {}}

Good luck!

[mods if this is in the wrong section, sorry Sad]

if you didn't recall making one, maybe it's blank.

more or less retired.
Noitev
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April 08, 2013, 09:08:26 AM
 #3

i tried blank, and nothing happened

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April 08, 2013, 11:35:18 AM
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Could it be that you tried Electrum a few months ago and set a password back then, before deciding to use another wallet?

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Noitev
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April 08, 2013, 03:34:23 PM
 #5

nope its new

btcven
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April 09, 2013, 01:58:00 AM
 #6

If you have your seed you can restore the wallet and set a new password

Find your electrum.dat wallet file. Here is how to find it https://en.bitcoin.it/wiki/Electrum#Wallet_File

Rename it

Run Electrum and select the Restore option

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Noitev
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April 09, 2013, 06:39:48 AM
 #7

dont have the seed

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April 10, 2013, 03:07:14 PM
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I found your password. If you confirm that the address in the original post - 15HC2A9VGFMRYEHy3e49pUTgmmcGR5sFco - is correct. I'll send half of the amount there.

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April 10, 2013, 03:14:17 PM
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I found your password. If you confirm that the address in the original post - 15HC2A9VGFMRYEHy3e49pUTgmmcGR5sFco - is correct. I'll send half of the amount there.

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arsenische
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April 10, 2013, 03:17:45 PM
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so electrum is vulnerable, or is it a joke, or was it a trivial password?

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April 10, 2013, 03:19:05 PM
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so electrum is vulnerable, or is it a joke, or was it a trivial password?

Electrum itself is not vulnerable, but the password was relatively easy so I could use the bruteforce method.

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April 10, 2013, 03:28:10 PM
 #12

the coins were sent to this address: https://blockchain.info/tx/3e255a71ee4665f55b3f9d8238a3f055d0637e81b076a7c8c72d18e5a2c95dda

Electrum: the convenience of a web wallet, without the risks
stick
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April 10, 2013, 03:31:12 PM
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Yes, I wrote above I recovered the password and I'll send half of the amount to the address in the original post once the poster proves it is still correct.

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April 10, 2013, 03:58:12 PM
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Yes, I wrote above I recovered the password and I'll send half of the amount to the address in the original post once the poster proves it is still correct.

did you write some script to bruteforce electrum passwords?

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April 10, 2013, 03:59:55 PM
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Yes, I wrote above I recovered the password and I'll send half of the amount to the address in the original post once the poster proves it is still correct.

did you write some script to bruteforce electrum passwords?

It is not an Electrum password, it is an AES encryption with a easy password set

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April 11, 2013, 01:48:54 PM
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Yes, I wrote above I recovered the password and I'll send half of the amount to the address in the original post once the poster proves it is still correct.

did you write some script to bruteforce electrum passwords?

It is not an Electrum password, it is an AES encryption with a easy password set

What do you mean by "easy password set"?
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April 11, 2013, 09:07:20 PM
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What do you mean by "easy password set"?

It means that the OP (or the person he stole the wallet from) chose a passphrase that was not long or complex enough to provide substantial resistance against brute-force password guessing.

The purpose of a password is to make your encrypted wallet data hack-proof even if stolen - this demonstrates that a weak password can result in your password only being a small impediment to a stolen wallet being emptied. A GPGPU miner's computers also are very good password crackers.

A brute-force attack on a stolen wallet password is much more feasible than an attack on a 128-bit deterministic wallet or a 160-bit bitcoin address, since humans are the weakest link when they get to type in their own password. A 16 digit Base36 password like a5dznckd2bm36aaw is still 42 trillion times easier to crack than a properly generated deterministic wallet (which is already 4 billion times + weaker than bitcoin-qt addresses).

Electrum only uses one round of encryption, unlike Bitcoin which uses 25000:

Code:
# AES encryption
EncodeAES = lambda secret, s: base64.b64encode(aes.encryptData(secret,s))
DecodeAES = lambda secret, e: aes.decryptData(secret, base64.b64decode(e))

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