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Dec
29
awarded  Supporter
Dec
29
answered In storing passwords in a database should I use a per-application salt in addition to a per-secret salt?
Dec
19
comment Can I determine if a user has the wrong symmetric encryption key?
Then assuming that the encryption scheme you're using is not vulnerable to a known-plaintext attack (in which case, change it), then I can't think of anything about the method you supplied that would weaken security.
Dec
19
awarded  Teacher
Dec
19
answered Can I determine if a user has the wrong symmetric encryption key?