com.platon.crypto

类 ECDSASignature

java.lang.Object

com.platon.crypto.ECDSASignature

public class ECDSASignature
extends java.lang.Object

An ECDSA Signature.

字段概要

字段

限定符和类型	字段和说明
java.math.BigInteger	r
java.math.BigInteger	s

构造器概要

构造器

构造器和说明
ECDSASignature(java.math.BigInteger r, java.math.BigInteger s)

方法概要

限定符和类型	方法和说明
boolean	isCanonical()
ECDSASignature	toCanonicalised() Will automatically adjust the S component to be less than or equal to half the curve order, if necessary.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

r

public final java.math.BigInteger r

s

public final java.math.BigInteger s

构造器详细资料

ECDSASignature

public ECDSASignature(java.math.BigInteger r,
                      java.math.BigInteger s)

方法详细资料

isCanonical

public boolean isCanonical()

返回:

true if the S component is "low", that means it is below Sign.HALF_CURVE_ORDER. See BIP62.

toCanonicalised

public ECDSASignature toCanonicalised()

Will automatically adjust the S component to be less than or equal to half the curve order, if necessary. This is required because for every signature (r,s) the signature (r, -s (mod N)) is a valid signature of the same message. However, we dislike the ability to modify the bits of a Bitcoin transaction after it's been signed, as that violates various assumed invariants. Thus in future only one of those forms will be considered legal and the other will be banned.

返回:

the signature in a canonicalised form.