StoreCore supports four SSL modes per store. This ssl_mode is a 4 bit value stored as a decimal integer in the core sc_stores table. The binary bitmask is outlined below.

Bin Dec SSL Secured Information
0000 0 Off: no SSL support
0001 1 Payment transactions
0010 2 Personally identifiable information (PII)
0100 4 Company and legal information
1000 8 General information
1111 15 On: full SSL support

In most use cases, the SSL mode can simply be set to 15 (on) or 0 (off). The other two supported modes are 1 (0001) for payment transactions only and 3 (0011) for payment transactions plus personally identifiable information (PII).