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Before using the Key Management Utility on yours or any database file, you should be aware that it has quite a few quirks. The most dangerous of them being that the Key Management Utility saves to the Key Database File arbitrary depending on your action and saves things across multiple files.
It is strongly recommended to have multiple backups made of the Key Database before making any changes to it. backup the complete set together. In this example that would be all files krypton.*.
Import Private Key
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References
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