Script Component - The value is too large to fit in the column data area of the buffer

Hi 

I have been trying to resolve an error message ("The value is too large to fit in the column data area of the buffer") I am getting from a Script Component (C#) that decrypts GPG encrypted column from VARBINARY(MAX) datatype to VARCAHR(MAX) datatype. It has been working fine until the past few days. Here are the Data Flow Task steps:

1. OLE DB Source - Gets the data from a SQL Server table, which is VARBINARY(MAX) datatype. 
2. Script Component - dectypts from gpg incrypted column using C#. OutPut Columns is set to DT_STR(8000), which fails if I try to increase the column size above 8000.
3. OLE DB Destination - Destination table has a VARCHAR(MAX) datatype column size. 

Here is the C# script for step #2:

 int length = (Int32)Row.MyColumnName.Length;
            if (length == 0)
            {
                Row.DecryptMyColumnName = null;
            }
            else
            {
                byte[] bytes = Row.MyColumnName.GetBlobData(0, length);
                String keyString = System.Text.Encoding.ASCII.GetString(bytes);
                if (keyString.Contains("\\r\\n"))
                {
                    keyString = keyString.Replace("\\r", "\r");
                    keyString = keyString.Replace("\\n", "\n");
                }
                else
                {
                    keyString = keyString.Replace("\\n", "\r\n");
                }

                Stream stream = new MemoryStream(System.Text.Encoding.ASCII.GetBytes(keyString));
                Row.DecryptMyColumnName = getDecryptedData(stream, keyString);
            }

I have tried the following links but to no avail:

• SSIS - The value is too large to fit in the column data area of the buffer 
• The value is too large to fit in the column data area of the buffer?     
• Microsoft.SqlServer.Dts.Pipeline.DoesNotFitBufferException   

Any help is greatly appreciated!

IN~