PIN codes
The personal identification number (PIN) code and the universal personal
identification number (UPIN) code (4 to 8 digits) help to protect your SIM
card against unauthorized use. See "Security," p. 48.
The PIN2 code (4 to 8 digits) may be supplied with the SIM card and is required
for some functions.
The module PIN is required to access the information in the security module.
See "Security module," p. 69.
The signing PIN is required for the digital signature. See "Digital signature," p. 70.