Ingenico 6500 User Manual

 

 

Ingenico 6500 User’s Guide 

101 

 

3.  The secure certificate file is used to validate the signature of code files and data files as 

soon as they are installed. The secure certificate can also be accessed as needed 
throughout the download procedure.  

4.  If the download is successful, the secure certificate file will be erased from a temporary 

location and updated into SSA’s memory. 

10.4 

The secure certificate is a text file that contains security information for a download 
package. 

Once the text file is constructed, it must be passed through a securing utility which 
generates the MAC of the certificate. The utility will also generate MACs for all of the 
software components described in the certificate. 

The secure certificate contains all the security information necessary for SSA to determine 
if the downloaded application is eligible to upgrade. 

The secure certificate is also a descriptor of all the software components that are 
necessary to make up a download session. In effect, the secure certificate represents an 
application descriptor file that contains secured fingerprints for each of the software 
components representing the application. 

The following is an example of a secure certificate text file. 

MAC=12345678 

[VisaPEDMode] 

1 

[Appl] 

MAC=12345678 applname dstfilename.ext authmethod encrypt 

srcfilename.ext 

[SecFiles] 

MAC=12345678 applname dstfilename.ext class authmethod encrypt 

existence srcfilename.ext 

MAC=12345678 applname dstfilename.ext class authmethod encrypt 

existence srcfilename.ext 

[NonSecFiles] 

applname filename.ext class existence 

applname filename.ext class existence 

[DeleteAppl] 

applname codefilename1 

applname codefilename2 

[DeleteFiles] 

applname filename.ext class 

applname filename.ext class 

[DeleteWholeApp] 

applname