phc-discussions - RE: [PHC] A must read...

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Message-ID: <a59ad76d15b04cb3be40042dc10b6d4f@BY2PR03MB074.namprd03.prod.outlook.com>
Date: Tue, 14 Jan 2014 20:27:40 +0000
From: Marsh Ray <maray@...rosoft.com>
To: "discussions@...sword-hashing.net" <discussions@...sword-hashing.net>
Subject: RE: [PHC] A must read...

> Memory.  If each pipeline stage requires 500MB of DRAM, then this gets rather expensive.

Looks like 500 MiB DDR3 is currently $4.22 retail. This doesn't sound cost-prohibitive to an attacker building their own custom ASIC. Pin count is likely to be the limiting factor in up-front costs, while power consumption costs are likely to dominate after few months of continuous operation.

- Marsh

www newegg com/Product/Product.aspx?Item=N82E16820226259
Mushkin Enhanced Essentials 32GB (4 x 8GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Desktop Memory Model 994017 $269.99