JDK with JDK-8005408 changed the behaviour of PKCS#12 KeyStore so it will use SecretKeyFactory to convert from SecretKeySpec to SecretKey. So a SecretKeyFactorySpi implementation is needed to support PKCS#7 Data OID used when storing data as SecretKeys in the PKCS#12 KeyStore.

This relates to ELY-920 and the test failure on JDK 1.8.0_74.