汉化日志

11090815 · Dec 19, 2023 · 51a56f1 · 51a56f1
1 parent ea3824c
commit 51a56f1
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diff --git a/README.md b/README.md
diff --git a/algorithm/extractak.go b/algorithm/extractak.go
@@ -1,93 +1,93 @@
-package algorithm
-
-import (
-	"crypto/elliptic"
-	"crypto/sha256"
-	"encoding/hex"
-
-	"github.com/11090815/dscabs/ecdsa"
-	"github.com/11090815/dscabs/ecdsa/bigint"
-	"github.com/11090815/dscabs/sm2"
-)
-
-func ExtractAK(params *SystemParams, w []string) *AttributeKey {
-	key := &AttributeKey{PublicKey: make(map[string]*ecdsa.EllipticCurvePoint)}
-	var r *bigint.BigInt
-	var zero = new(bigint.BigInt).SetInt64(0)
-
-	for {
-		r = ecdsa.RandNumOnCurve(params.Curve) // select a random number
-		var R = &ecdsa.EllipticCurvePoint{}
-		rx, ry := params.Curve.ScalarBaseMult(r.Bytes())
-		R.X, R.Y = bigint.GoToBigInt(rx), bigint.GoToBigInt(ry)
-		if R.X.Cmp(zero) != 0 && R.Y.Cmp(zero) != 0 {
-			break
-		}
-	}
-
-	var sk = new(bigint.BigInt).SetInt64(0)
-	for _, attrVal := range w {
-		attr := GetAttributeFromUniverse(attrVal)
-		if attr == nil {
-			attr = AddAttributeIntoUniverse(params, attrVal)
-		}
-		sk.Add(sk, attr.x)
-		key.PublicKey[attr.hashVal] = &ecdsa.EllipticCurvePoint{}
-		tmp := new(bigint.BigInt).Set(r)
-		tmp.Mul(tmp, attr.x)
-		tmp.Mod(tmp, bigint.GoToBigInt(params.Curve.Params().N))
-		_x, _y := params.Curve.ScalarBaseMult(tmp.Bytes())
-		key.PublicKey[attr.hashVal].X, key.PublicKey[attr.hashVal].Y = bigint.GoToBigInt(_x), bigint.GoToBigInt(_y)
-	}
-	sk.Mul(sk, r)
-	sk.Mul(sk, params.MSK)
-	sk.Mod(sk, bigint.GoToBigInt(params.Curve.Params().N))
-	key.SecretKey = sk
-	key.Attributes = make([]string, len(w))
-	copy(key.Attributes, w)
-
-	key.SM2SecretKey, _ = sm2.GenerateKey_(sk.GetGoBigInt(), params.Curve)
-
-	return key
-}
-
-func GetAttributeFromUniverse(attrVal string) *attribute {
-	var h = sha256.New().Sum([]byte(attrVal))
-	hashVal := hex.EncodeToString(h)
-
-	if attr, ok := universe[hashVal]; ok {
-		return attr
-	}
-	return nil
-}
-
-func AddAttributeIntoUniverse(params *SystemParams, attrVal string) *attribute {
-	var attr = &attribute{}
-	var h = sha256.New().Sum([]byte(attrVal))
-	attr.value, attr.hashVal = attrVal, hex.EncodeToString(h)
-	x, ok := new(bigint.BigInt).SetString(attr.hashVal, 16)
-	if !ok {
-		panic("failed to convert string to big int")
-	}
-	x = x.Mul(x, params.MSK)
-
-	attr.x = x.Mod(x, bigint.GoToBigInt(params.Curve.Params().N))
-	attr.y = &ecdsa.EllipticCurvePoint{}
-	attrYX, attrYY := params.Curve.ScalarBaseMult(attr.x.Bytes())
-	attr.y.X, attr.y.Y = bigint.GoToBigInt(attrYX), bigint.GoToBigInt(attrYY)
-	if universe == nil {
-		universe = make(map[string]*attribute)
-	}
-	universe[attr.hashVal] = attr
-	return attr
-}
-
-func (a *attribute) init(curve elliptic.Curve) {
-	var h = sha256.New().Sum([]byte(a.value))
-	a.hashVal = hex.EncodeToString(h)
-	a.x = new(bigint.BigInt).Set(universe[a.hashVal].x)
-	a.y = &ecdsa.EllipticCurvePoint{
-		X: new(bigint.BigInt).Set(universe[a.hashVal].y.X),
-		Y: new(bigint.BigInt).Set(universe[a.hashVal].y.Y),
-	}
-}
+package algorithm
+
+import (
+	"crypto/elliptic"
+	"crypto/sha256"
+	"encoding/hex"
+
+	"github.com/11090815/dscabs/ecdsa"
+	"github.com/11090815/dscabs/ecdsa/bigint"
+	"github.com/11090815/dscabs/sm2"
+)
+
+func ExtractAK(params *SystemParams, w []string) *AttributeKey {
+	key := &AttributeKey{PublicKey: make(map[string]*ecdsa.EllipticCurvePoint)}
+	var r *bigint.BigInt
+	var zero = new(bigint.BigInt).SetInt64(0)
+
+	for {
+		r = ecdsa.RandNumOnCurve(params.Curve) // select a random number
+		var R = &ecdsa.EllipticCurvePoint{}
+		rx, ry := params.Curve.ScalarBaseMult(r.Bytes())
+		R.X, R.Y = bigint.GoToBigInt(rx), bigint.GoToBigInt(ry)
+		if R.X.Cmp(zero) != 0 && R.Y.Cmp(zero) != 0 {
+			break
+		}
+	}
+
+	var sk = new(bigint.BigInt).SetInt64(0)
+	for _, attrVal := range w {
+		attr := GetAttributeFromUniverse(attrVal)
+		if attr == nil {
+			attr = AddAttributeIntoUniverse(params, attrVal)
+		}
+		sk.Add(sk, attr.x)
+		key.PublicKey[attr.hashVal] = &ecdsa.EllipticCurvePoint{}
+		tmp := new(bigint.BigInt).Set(r)
+		tmp.Mul(tmp, attr.x)
+		tmp.Mod(tmp, bigint.GoToBigInt(params.Curve.Params().N))
+		_x, _y := params.Curve.ScalarBaseMult(tmp.Bytes())
+		key.PublicKey[attr.hashVal].X, key.PublicKey[attr.hashVal].Y = bigint.GoToBigInt(_x), bigint.GoToBigInt(_y)
+	}
+	sk.Mul(sk, r)
+	sk.Mul(sk, params.MSK)
+	sk.Mod(sk, bigint.GoToBigInt(params.Curve.Params().N))
+	key.SecretKey = sk
+	key.Attributes = make([]string, len(w))
+	copy(key.Attributes, w)
+
+	key.SM2SecretKey, _ = sm2.GenerateKey_(sk.GetGoBigInt(), params.Curve)
+
+	return key
+}
+
+func GetAttributeFromUniverse(attrVal string) *attribute {
+	var h = sha256.New().Sum([]byte(attrVal))
+	hashVal := hex.EncodeToString(h)
+
+	if attr, ok := universe[hashVal]; ok {
+		return attr
+	}
+	return nil
+}
+
+func AddAttributeIntoUniverse(params *SystemParams, attrVal string) *attribute {
+	var attr = &attribute{}
+	var h = sha256.New().Sum([]byte(attrVal))
+	attr.value, attr.hashVal = attrVal, hex.EncodeToString(h)
+	x, ok := new(bigint.BigInt).SetString(attr.hashVal, 16)
+	if !ok {
+		panic("failed to convert string to big int")
+	}
+	x = x.Mul(x, params.MSK)
+
+	attr.x = x.Mod(x, bigint.GoToBigInt(params.Curve.Params().N))
+	attr.y = &ecdsa.EllipticCurvePoint{}
+	attrYX, attrYY := params.Curve.ScalarBaseMult(attr.x.Bytes())
+	attr.y.X, attr.y.Y = bigint.GoToBigInt(attrYX), bigint.GoToBigInt(attrYY)
+	if universe == nil {
+		universe = make(map[string]*attribute)
+	}
+	universe[attr.hashVal] = attr
+	return attr
+}
+
+func (a *attribute) init(curve elliptic.Curve) {
+	var h = sha256.New().Sum([]byte(a.value))
+	a.hashVal = hex.EncodeToString(h)
+	a.x = new(bigint.BigInt).Set(universe[a.hashVal].x)
+	a.y = &ecdsa.EllipticCurvePoint{
+		X: new(bigint.BigInt).Set(universe[a.hashVal].y.X),
+		Y: new(bigint.BigInt).Set(universe[a.hashVal].y.Y),
+	}
+}