fix(posixage): zero sensitive byte slices after use#490
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Clear decryption key material and plaintext secret bytes immediately after use via defer clear(), so they don't linger in the heap longer than necessary. Signed-off-by: Alano Terblanche <18033717+Benehiko@users.noreply.github.com>
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Clear decryption key material and plaintext secret bytes immediately after use via defer clear(), so they don't linger in the heap longer than necessary.