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Date: Fri, 23 Mar 2018 20:16:02 +0800
From: "ethanli" <>
To: "john-users" <>
Subject: How to utilities ethereum-opencl instead of ethereum

I download ethereum wallet from and try to recover password of it by jtr.
python wallet.json > eth.enc
john --device=gpu  --format=ethereum-opencl eth.enc
it returns´╝Ü
Using default input encoding: UTF-8
No password hashes loaded (see FAQ)

if running without opencl format, it works very slowly.
john --format=ethereum eth.enc
Using default input encoding: UTF-8
Loaded 1 password hash (ethereum, Ethereum Wallet [PBKDF2-SHA256/scrypt Keccak 256/256 AVX2 8x])
Cost 1 (iteration count) is 262144 for all loaded hashes
Cost 2 (kdf [0:PBKDF2-SHA256 1:scrypt 2:PBKDF2-SHA256 presale]) is 1 for all loaded hashes

0.03295g/s 2.109p/s 2.109c/s 2.109C/s

Does that mean the format of such wallet can not utiliize the gpu?

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