39 lines
672 B
C
39 lines
672 B
C
#ifndef H_ARITH
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#define H_ARITH
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#include <stdint.h>
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// Field element (invariant: val <= MOD)
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typedef struct {
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uint64_t val;
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} fp;
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// An authenticated share: consists of linear shares of (x, Delta * x)
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struct share {
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fp *s;
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fp *s_mac;
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};
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// Generate a fully random field element
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fp *rand_fp();
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// Convert a uint to a Fp
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fp *from(uint64_t v);
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// Add two field elements together
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fp *add(fp *a, fp *b);
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// Multiply two field elements together
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fp *mul(fp *a, fp *b);
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// Negate a field element (-x)
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fp *neg(fp *a);
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// Check if a field element is zero.
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int is_zero(fp *x);
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// Produce a printable uint64 from the field element.
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uint64_t get_output(fp *o);
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#endif
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