Switch to little endian#72
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daira
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May 17, 2018
str4d
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May 17, 2018
| // Drop the first five bits, so it can be interpreted as a scalar. | ||
| h[0] &= 0b0000_0111; | ||
| // Drop the most significant five bits, so it can be interpreted as a scalar. | ||
| h[31] &= 0b0000_0111; |
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Spec says to interpret the BLAKE2s output as a 256-bit integer mod 2livk, and livk = 251, so this is indeed equivalent to truncating by 5 bits.
stefandeml
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Factor out Example trait.
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This correctly implements little endian encoding for everything in the circuit and outside abstractions.