Document source of montgomery::differential_add_and_double

daxpedda · daxpedda · commit c57407d416d0 · 2025-08-03T18:46:17.000+02:00
diff --git a/ed448-goldilocks/src/montgomery/x.rs b/ed448-goldilocks/src/montgomery/x.rs
@@ -199,6 +199,8 @@ impl Mul<&ProjectiveMontgomeryXpoint> for &EdwardsScalar {
     }
 }
 
+// (1987 Montgomery) Speeding the Pollard and elliptic curve methods of factorization
+// fifth and sixth displays, plus common-subexpression elimination, plus assumption Z1=1
 fn differential_add_and_double(
     P: &mut ProjectiveMontgomeryXpoint,
     Q: &mut ProjectiveMontgomeryXpoint,

Original file line number	Diff line number	Diff line change
`@@ -199,6 +199,8 @@ impl Mul<&ProjectiveMontgomeryXpoint> for &EdwardsScalar {`
`199`	`199`	`}`
`200`	`200`	`}`
`201`	`201`
	`202`	`+// (1987 Montgomery) Speeding the Pollard and elliptic curve methods of factorization`
	`203`	`+// fifth and sixth displays, plus common-subexpression elimination, plus assumption Z1=1`
`202`	`204`	`fn differential_add_and_double(`
`203`	`205`	`P: &mut ProjectiveMontgomeryXpoint,`
`204`	`206`	`Q: &mut ProjectiveMontgomeryXpoint,`