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using System;
namespace Org.BouncyCastle.Crypto
{
/// <summary>
/// Operators that reduce their input to the validation of a signature produce this type.
/// </summary>
public interface IVerifier
{
/// <summary>
/// Return true if the passed in data matches what is expected by the verification result.
/// </summary>
/// <param name="data">The bytes representing the signature.</param>
/// <returns>true if the signature verifies, false otherwise.</returns>
bool IsVerified(byte[] data);
/// <summary>
/// Return true if the length bytes from off in the source array match the signature
/// expected by the verification result.
/// </summary>
/// <param name="source">Byte array containing the signature.</param>
/// <param name="off">The offset into the source array where the signature starts.</param>
/// <param name="length">The number of bytes in source making up the signature.</param>
/// <returns>true if the signature verifies, false otherwise.</returns>
bool IsVerified(byte[] source, int off, int length);
#if NETCOREAPP2_1_OR_GREATER || NETSTANDARD2_1_OR_GREATER
// TODO[api]
//bool IsVerified(ReadOnlySpan<byte> data);
#endif
}
}
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