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git-subtree-dir: erigon-lib git-subtree-mainline:3c8cbda809git-subtree-split:93d9c9d9fe
22 lines
677 B
C++
22 lines
677 B
C++
#ifndef STARKWARE_CRYPTO_PEDERSEN_HASH_H_
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#define STARKWARE_CRYPTO_PEDERSEN_HASH_H_
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#include "gsl-lite.hpp"
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#include "prime_field_element.h"
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namespace starkware {
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/*
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Computes the Starkware version of the Pedersen hash of x and y.
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The hash is defined by:
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shift_point + x_low * P_0 + x_high * P1 + y_low * P2 + y_high * P3
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where x_low is the 248 low bits of x, x_high is the 4 high bits of x and similarly for y.
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shift_point, P_0, P_1, P_2, P_3 are constant points generated from the digits of pi.
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*/
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PrimeFieldElement PedersenHash(const PrimeFieldElement& x, const PrimeFieldElement& y);
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} // namespace starkware
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#endif // STARKWARE_CRYPTO_PEDERSEN_HASH_H_
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