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(SQL Server) Obfuscate StringDemonstrates how to obfuscate and unobfuscate a string.
// Important: See this note about string length limitations for strings returned by sp_OAMethod calls. // CREATE PROCEDURE ChilkatSample AS BEGIN DECLARE @hr int DECLARE @sTmp0 nvarchar(4000) DECLARE @sb int EXEC @hr = sp_OACreate 'Chilkat_9_5_0.StringBuilder', @sb OUT IF @hr <> 0 BEGIN PRINT 'Failed to create ActiveX component' RETURN END DECLARE @success int DECLARE @s nvarchar(4000) SELECT @s = 'Hello World!' EXEC sp_OAMethod @sb, 'Append', @success OUT, @s EXEC sp_OAMethod @sb, 'GetAsString', @sTmp0 OUT PRINT @sTmp0 -- Output is "Hello World!"; -- Obfuscate the string. -- This is NOT encryption. It's just a simple obfuscation. EXEC sp_OAMethod @sb, 'Obfuscate', NULL EXEC sp_OAMethod @sb, 'GetAsString', @sTmp0 OUT PRINT @sTmp0 -- Output is 2GsgGhbSQVyG8Vb9 -- ------------------------- -- Unobfuscate. DECLARE @sb2 int EXEC @hr = sp_OACreate 'Chilkat_9_5_0.StringBuilder', @sb2 OUT DECLARE @s2 nvarchar(4000) SELECT @s2 = '2GsgGhbSQVyG8Vb9' EXEC sp_OAMethod @sb2, 'Append', @success OUT, @s2 EXEC sp_OAMethod @sb2, 'Unobfuscate', NULL EXEC sp_OAMethod @sb2, 'GetAsString', @sTmp0 OUT PRINT @sTmp0 -- Output is "Hello World!"; EXEC @hr = sp_OADestroy @sb EXEC @hr = sp_OADestroy @sb2 END GO |
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