pgp - Ways to verify XML is unchanged in database -


i looking see if there way verify xml storing in database has not been tampered in way.

i have thought doing md5 hash skilled hacker understand , regenerate hash. looking @ pgp signatures, app verify xml unchanged when history retrieved.

does know if there spec signing xml? storing xml in xml column in sql, fact can @ column , see has been logged, fact can changed worries me can not prove unchanged.

thanks


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