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Title: Double hashing as a mining shortcut countermeasure Post by: Come-from-Beyond on October 25, 2015, 02:20:49 PM As it's known, any hash function output bit can be represented as a polynomial of input bits. If the degree of this polynomial is low then mining ASICs can get a speedup by analyzing first N bits of the hash before doing actual hashing. A double hashing increases degree of the polynomial reducing speedup or even making it negative. Does anyone know if doubling is enough to make it unprofitable to do N-bit analysis (for any N) in mining hardware, or maybe triple hashing should be done?
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