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curves.go
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/
curves.go
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package key
import (
"encoding/asn1"
"github.com/deatil/go-cryptobin/ecdh"
)
type namedCurveInfo struct {
namedCurve ecdh.Curve
oid asn1.ObjectIdentifier
}
var namedCurves = make([]namedCurveInfo, 0)
func AddNamedCurve(curve ecdh.Curve, oid asn1.ObjectIdentifier) {
namedCurves = append(namedCurves, namedCurveInfo{
namedCurve: curve,
oid: oid,
})
}
func NamedCurveFromOid(oid asn1.ObjectIdentifier) ecdh.Curve {
for i := range namedCurves {
cur := &namedCurves[i]
if cur.oid.Equal(oid) {
return cur.namedCurve
}
}
return nil
}
func OidFromNamedCurve(curve ecdh.Curve) (asn1.ObjectIdentifier, bool) {
for i := range namedCurves {
cur := &namedCurves[i]
if cur.namedCurve == curve {
return cur.oid, true
}
}
return asn1.ObjectIdentifier{}, false
}