About FASC-N credentials - A Federal Agency Smart Credential Number (FASC-N) is an identifier used in the Personal Identity Verification (PIV) credentials issued by US Federal Agencies. FASC-N credential bit lengths vary based on reader configuration; Security Center natively recognizes 75-bit and 200-bit formats. - Security Center 5.13 - Administrator guides

Security Center Administrator Guide 5.13
Product
Security Center
Content type
Guides > Administrator guides
Version
5.13
Release
5.13
ft:locale
en-US
Last updated
2026-04-02

A Federal Agency Smart Credential Number (FASC-N) is an identifier used in the Personal Identity Verification (PIV) credentials issued by US Federal Agencies. FASC-N credential bit lengths vary based on reader configuration; Security Center natively recognizes 75-bit and 200-bit formats.

Creating credentials

For PIV credentials, you can select either the FASC-N 75 bits or FASC-N 200-bit format while manually generating a credential in Config Tool or Security Desk.
NOTE: 200-bit FASC-N is also called Full FASC-N.
Credential creation dialog box showing card format options including FASC-N 75 bits and 200 bits.

In Security Desk, you can use Batch enrollment in the Credential management task to create multiple FASC-N or GUID data. For more information, see Enrolling multiple credentials automatically.

Security Center recognizes CIV or PIV-I credentials as RAW 128-bit credentials, which can be mapped to a custom card format.

Import tool and SDK

The FASC-N formats are available through both the Import tool and the Security Center SDK.

Import tool bindings interface showing FASC-N credential options.

You can import a FASC-N credential with its Credential raw data, its Credential code, or its individual fields. For more information, see CSV file structure and minimum requirements.

Example: The following three methods imports the same FASC-N 200 bits credential:
  • Using Credential raw data:

    D0439458210C2C19A0846D83685A1082108CE73984108CA3EE|200

  • Using Credential code:

    32/1/92446/0/1/111222333/1/1223/2/7

  • Using individual fields:
    • FASC-N 200 bits - Agency: 32
    • FASC-N 200 bits - System: 1
    • FASC-N 200 bits - Card number: 92446
    • FASC-N 200 bits - CS: 0
    • FASC-N 200 bits - ICI: 1
    • FASC-N 200 bits - PI: 111222333
    • FASC-N 200 bits - OC: 1
    • FASC-N 200 bits - OI: 1223
    • FASC-N 200 bits - POA: 2
    • FASC-N 200 bits - LRC: 7