Validate decryption key length to decrypt function. am: 379b672b18 am: 66cbab1f13 am: 302d2e5cd4 am: ec57d22876 am: 5c338b682d am: 2616f56718
am: a74b3beb31

Change-Id: I73bcdc9097b2146d674a7de46b16d18381b32fd2