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23 lines
779 B
Go
23 lines
779 B
Go
package arbo
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import "math/big"
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var (
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// BN254BaseField is the base field for the BN254 curve.
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BN254BaseField, _ = new(big.Int).SetString("21888242871839275222246405745257275088548364400416034343698204186575808495617", 10)
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// BLS12377BaseField is the base field for the BLS12377 curve.
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BLS12377BaseField, _ = new(big.Int).SetString("25825498262808887005865186224201665565126143020923472090132963926938185026661", 10)
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)
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// BigToFF function returns the finite field representation of the big.Int
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// provided. It uses the curve scalar field to represent the provided number.
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func BigToFF(baseField, iv *big.Int) *big.Int {
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z := big.NewInt(0)
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if c := iv.Cmp(baseField); c == 0 {
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return z
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} else if c != 1 && iv.Cmp(z) != -1 {
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return iv
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}
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return z.Mod(iv, baseField)
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}
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