Special square, pow u in final exponentiation #36
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armfazh
requested changes
Jul 16, 2023
| func (e *gfP12) SpecialSquare(a *gfP12) *gfP12 { | ||
| tmp := &gfP12{} | ||
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| f02 := &tmp.y.x |
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Let' make clear what is the isomorphism.
gfp12.go
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| // easy part of the final exponentiation. Used in the hard part | ||
| // of the final exponentiation. Function uses formulas in | ||
| // Granger/Scott (PKC2010). | ||
| func (e *gfP12) SpecialSquare(a *gfP12) *gfP12 { |
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it can be renamed to SquareCyclotomic or something more shorter. Similarly for the exponentiation by u
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renamed to SquareCyclo6
gfp12_test.go
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| got := &gfP12{} | ||
| expected := &gfP12{} | ||
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| got.SpecialSquare(in) |
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add some warning, since this test assume the input is in the cyclotomic subgroup.
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added requirement for input
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Thanks for this. For ease of review, could you add more explicitly to each function what it does; what it assumes; and why it works. |
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for details, pls refer #35