Moran.Michael wrote:
My initial attack plan was to do the following:
1. Call decrypt() with the old-passphrase to decrypt each table's existing
data.
2. Temporarily store the decrypted data in temp tables.
3. Delete all rows of encrypted data from the original tables -- thereby
clearing the tables of all data encrypted with the old passphrase.
4. Call encrypt() with the new passphrase to encrypt all data in the temp
tables -- thereby repopulating the production tables with data encrypted
with the new passphrase.
5. Blow away the temp tables.
But this seems like a tedious procedure.
Is there any simple way to update ALL existing encrypted data with a new
passphrase, assuming you know the old passphrase and encryption type (i.e.
AES, Blowfish, etc.) without having to go through the 5-step process
mentioned above?
Why not use a single UPDATE command, e.g. something like:
UPDATE tbl
SET f1 = encrypt(decrypt(f1, 'oldkey', 'aes'), 'newkey', 'aes');
Joe
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