Ingenico 6500 ユーザーズマニュアル

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98 
Chapter 9 Key Architecture 
 
Section 9.5 Security Options 
9.5.6 
Atalla Key Block Protection Option 
This option controls whether the double-length master/session key injection is protected by 
the Atalla key block injection. If the option is enabled, double-length master or session key 
can only be injected through Atalla key block. 
Possible 
Values 
Status 
Description 
Disabled 
No protection is applied. Double-length master/session key 
can be injected through any format. (Default) 
Enabled 
Protection is applied.  
 
Double-length master key and double-length session 
key can only be injected through Atalla key block. They 
cannot be injected through the normal key format.  
 
Single-length master/session keys, Atalla key block 
format keys, single or double feature keys, and single 
or double DUKPT keys can be injected through both 
the normal key format and Atalla key block format. 
9.5.7 
Terminal Startup Verify MAC Option 
This option controls whether the terminal needs to verify the MAC at terminal startup for 
user application code files and data files that are contained in a valid certificate file. The 
default value is disabled because the manufacturer does not load the certificate file.  
Possible 
Values 
Status 
Description 
Disabled 
Disable startup verify MAC option. (Default) 
1 Enabled 
Enable 
startup 
verify MAC option. 
9.5.8 
Visa PED Mode Option 
This option controls whether the terminal runs in Visa PED mode. In this mode, if prompt 
MAC verification fails, PIN exhaustion validation and the three button limit will be applied 
when prompt MAC verification fails.  
 
PIN exhaustion validation means that the customer can only enter their PIN three 
times; after the third failed attempt, the terminal returns to the idle prompt.  
 
The three button limit means that forms that do not have Prompt MACing are 
limited to three buttons. If the form requires more than three data inputs, such as 
PIN entry or cash back amount, it must have prompt MACing.   
Possible 
Values 
Status 
Description 
0 Disabled 
Normal 
mode. 
Enabled 
Visa PED mode.