VerifyData Method

VerifyData(byte[], byte[], bool)

Verify the signature using the dataToVerify. This method will digest the dataToVerify using SHA-256, SHA-384 or SHA-512, depending on the public key's curve, and then verify the signature using the digest.

C#

public bool VerifyData(byte[] dataToVerify, byte[] signature, bool isStandardSignature = true)

Parameters

Type	Name	Description
byte[]	dataToVerify	The data data to verify. To verify an ECDSA signature, this method will digest the data using SHA-256, SHA-384 or SHA-512, depending on the public key's curve.
byte[]	signature	The signature to verify.
bool	isStandardSignature	true if the signature is formatted as the BER encoding specified by most standards, or false if the signature is formatted as the concatenation of r and s.

Returns

bool

A boolean, true if the signature verifies, false if it does not.

Remarks

If the signature is the standard BER encoding, then pass true for isStandardSignature. That argument defaults to true so if the signature is formatted in the standard way, you can call this method with that argument missing. If the signature is the concatenation of r and s, pass false for isStandardSignature.