//Verify that the signature is valid
func (t Tag) Verify() bool {
if t.Hkid == nil {
return false
}
tPublicKey := ecdsa.PublicKey(geterPoster.getPublicKeyForHkid(t.Hkid))
r, s := Unmarshal(elliptic.P521(), t.Signature)
ObjectHash := t.genTagHash(t.HashBytes, t.TypeString, t.NameSegment,
t.Version, t.Parents, t.Hkid)
if r.BitLen() == 0 || s.BitLen() == 0 {
return false
}
return ecdsa.Verify(&tPublicKey, ObjectHash, r, s)
}
//Verify returns wether the Commit has a valid Signature
func (c Commit) Verify() bool {
if c.Signature == nil { // nil Commit are not valid
return false
}
ObjectHash := c.genCommitHash(c.ListHash, c.Version, c.Parents, c.Hkid)
pubkey := ecdsa.PublicKey(geterPoster.getPublicKeyForHkid(c.Hkid))
if pubkey.Curve == nil || pubkey.X == nil || pubkey.Y == nil {
return false
}
r, s := Unmarshal(pubkey.Curve, c.Signature)
//log.Println(pubkey, " pubkey\n", ObjectHash, " ObjectHash\n", r, " r\n", s, "s")
if r == nil || s == nil || r.BitLen() == 0 || s.BitLen() == 0 {
return false
}
return ecdsa.Verify(&pubkey, ObjectHash, r, s)
}
// ToECDSA returns the public key as a *ecdsa.PublicKey.
func (p PublicKey) ToECDSA() *ecdsa.PublicKey {
ecpk := ecdsa.PublicKey(p)
return &ecpk
}
// ToECDSA returns the public key as a *ecdsa.PublicKey.
func (p PublicKey) ToECDSA() *ecdsa.PublicKey {
pkecdsa := ecdsa.PublicKey(p)
return &pkecdsa
}