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- // +build amd64,!noasm
-
- package p751toolbox
-
- // If choice = 0, leave x,y unchanged. If choice = 1, set x,y = y,x.
- // If choice is neither 0 nor 1 then behaviour is undefined.
- // This function executes in constant time.
- //go:noescape
- func fp751ConditionalSwap(x, y *Fp751Element, choice uint8)
-
- // Compute z = x + y (mod p).
- //go:noescape
- func fp751AddReduced(z, x, y *Fp751Element)
-
- // Compute z = x - y (mod p).
- //go:noescape
- func fp751SubReduced(z, x, y *Fp751Element)
-
- // Compute z = x + y, without reducing mod p.
- //go:noescape
- func fp751AddLazy(z, x, y *Fp751Element)
-
- // Compute z = x + y, without reducing mod p.
- //go:noescape
- func fp751X2AddLazy(z, x, y *fp751X2)
-
- // Compute z = x - y, without reducing mod p.
- //go:noescape
- func fp751X2SubLazy(z, x, y *fp751X2)
-
- // Compute z = x * y.
- //go:noescape
- func fp751Mul(z *fp751X2, x, y *Fp751Element)
-
- // Perform Montgomery reduction: set z = x R^{-1} (mod 2*p).
- // Destroys the input value.
- //go:noescape
- func fp751MontgomeryReduce(z *Fp751Element, x *fp751X2)
-
- // Reduce a field element in [0, 2*p) to one in [0,p).
- //go:noescape
- func fp751StrongReduce(x *Fp751Element)
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