/// <summary>
/// Computes the commitment Hash
/// </summary>
/// <param name="commitment">Commitment the commitment as a byte array.</param>
/// <returns>Commitment hash as a byte array</returns>
public virtual byte[] ComputeCommitmentHash(byte[] commitment)
{
Guard.NotNull(commitment, nameof(commitment));
Guard.NotLessThanOrEqualTo(commitment.Length, 0, nameof(commitment));
return(Digests.Sha256(commitment));
}
/// <summary>
/// Verifies the commitmentHash is resulted from commitment
/// </summary>
/// <param name="commitment">Commitment as a byte array</param>
/// <param name="commitmentHash">CommitmentHash the commitment hash as a byte array</param>
/// <returns>true if commitmentHash is the Hash of commitment, false otherwise</returns>
public bool ValidateCommitment(byte[] commitment, byte[] commitmentHash)
{
Guard.NotNull(commitment, nameof(commitment));
Guard.NotLessThanOrEqualTo(commitment.Length, 0, nameof(commitment));
Guard.NotNull(commitmentHash, nameof(commitmentHash));
Guard.NotLessThanOrEqualTo(commitmentHash.Length, 0, nameof(commitmentHash));
var computedHash = Digests.Sha256(commitment);
return(computedHash.SequenceEqual(commitmentHash));
}