com.scalar.dl.ledger.crypto

Class DigitalSignatureValidator

java.lang.Object

com.scalar.dl.ledger.crypto.DigitalSignatureValidator

All Implemented Interfaces:

SignatureValidator

@Immutable
public class DigitalSignatureValidator
extends java.lang.Object
implements SignatureValidator

A validator used to validate that a given byte array was signed by the private key corresponding to the specified certificate using the specified algorithm.

Constructor Summary

Constructors

Constructor and Description
DigitalSignatureValidator(java.nio.file.Path certPath)
DigitalSignatureValidator(java.nio.file.Path certPath, java.lang.String algorithm)
DigitalSignatureValidator(java.lang.String certPem)
DigitalSignatureValidator(java.lang.String certPem, java.lang.String algorithm)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o) Indicates whether some other object is "equal to" this object.
int	hashCode() Returns a hash code value for the object.
boolean	validate(byte[] toBeValidated, byte[] signatureBytes) Validates the signature corresponds to the certificate.

Methods inherited from class java.lang.Object

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

Constructor Detail

DigitalSignatureValidator

public DigitalSignatureValidator(java.nio.file.Path certPath)

DigitalSignatureValidator

public DigitalSignatureValidator(java.nio.file.Path certPath,
                                 java.lang.String algorithm)

DigitalSignatureValidator

public DigitalSignatureValidator(java.lang.String certPem)

DigitalSignatureValidator

public DigitalSignatureValidator(java.lang.String certPem,
                                 java.lang.String algorithm)

Method Detail

validate

public boolean validate(byte[] toBeValidated,
                        byte[] signatureBytes)

Validates the signature corresponds to the certificate.

Specified by:

validate in interface SignatureValidator

Parameters:

toBeValidated - a byte array whose signature will be validated

signatureBytes - the bytes of the signature

Returns:

true if the signature corresponds to the toBeValidated bytes; false otherwise

Throws:

SignatureException - if it fails to validate

hashCode

public int hashCode()

Returns a hash code value for the object.

Overrides:

hashCode in class java.lang.Object

Returns:

a hash code value for this object.

equals

public boolean equals(java.lang.Object o)

Indicates whether some other object is "equal to" this object. The other object is considered equal if it is also an SignatureValidator and both instances have the same

• algorithm
• cert

Overrides:

equals in class java.lang.Object

Parameters:

o - an object to be tested for equality

Returns:

true if the other object is "equal to" this object otherwise false