Document source of montgomery::differential_add_and_double

daxpedda · daxpedda · commit 3adb2f649ade · 2025-07-20T20:35:44.000+02:00
diff --git a/ed448-goldilocks/src/montgomery/x.rs b/ed448-goldilocks/src/montgomery/x.rs
@@ -187,6 +187,8 @@ 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
`@@ -187,6 +187,8 @@ impl Mul<&ProjectiveMontgomeryXpoint> for &EdwardsScalar {`
`187`	`187`	`}`
`188`	`188`	`}`
`189`	`189`
	`190`	`+// (1987 Montgomery) Speeding the Pollard and elliptic curve methods of factorization`
	`191`	`+// fifth and sixth displays, plus common-subexpression elimination, plus assumption Z1=1`
`190`	`192`	`fn differential_add_and_double(`
`191`	`193`	`P: &mut ProjectiveMontgomeryXpoint,`
`192`	`194`	`Q: &mut ProjectiveMontgomeryXpoint,`