14Copyright © 2005 Nokia. All rights reserved.PIN codesThe personal identification number (PIN) code and the universal personalidentification number (UPIN) code (4 to 8 digits) help to protect your SIM cardagainst unauthorized use. See Security p. 78.The PIN2 code (4 to 8 digits) may be supplied with the SIM card and is required forsome functions.The module PIN is required to access the information in the security module. SeeSecurity module p. 116.The signing PIN is required for the digital signature. See Digital signature p. 118.PUK codesThe personal unblocking key (PUK) code and the universal personal unblocking key(UPUK) code (8 digits) are required to change a blocked PIN code and UPIN code,respectively. The PUK2 code (8 digits) is required to change a blocked PIN2 code. Ifthe codes are not supplied with the SIM card, contact your local service providerfor the codes.Barring passwordThe barring password (4 digits) is required when using the Call barring service. SeeSecurity p. 78.
