Linux Kernel FIPS Object Module (KFOM) Cryptographic Module

Certificate details

Certificate ID #5261
Status active
Validation dates 11.05.2026 , 03.08.2026
Sunset date 10-05-2031
Standard FIPS 140-3
Security level 1
Type Firmware-Hybrid
Embodiment MultiChipStand
Caveat No assurance of the minimum strength of generated SSPs (e.g., keys). No assurance of minimum security of SSPs (e.g., keys, bit strings) that are externally loaded, or of SSPs established with externally loaded SSPs
Exceptions
  • Non-invasive security: N/A
  • Mitigation of other attacks: N/A
Description The Cisco Linux Kernel FIPS Object Module (KFOM) is a firmware hybrid cryptographic library that serves the operating system kernel. It does not implement any security protocols, instead only allowing for Linux kernel applications access to using approved algorithms.
Vendor Cisco Systems, Inc. http://www.cisco.com
Lab Gossamer Security Solutions
References

This certificate's webpage directly references 0 certificates, transitively this expands into 0 certificates.
Certificate
Webpage

Security policy

Extracted keywords

Symmetric Algorithms
AES-128, AES-192, AES-256, AES, CAST, HMAC
Asymmetric Algorithms
ECDH, ECDSA, ECC
Post-quantum Algorithms
LMS
Hash functions
SHA-1, SHA-256, SHA2, SHA3-224, SHA3-256, SHA3-384, SHA3-512
Schemes
MAC
Randomness
DRBG, RBG
Elliptic Curves
P-256, P-384
Block cipher modes
GCM, XTS

Trusted Execution Environments
PSP, SSC
Vendor
Cisco Systems, Inc, Cisco Systems, Cisco

Security level
Level 1, level 1

Creation date D:20260730161821-04'00'
Modification date D:20260730161821-04'00'
Pages 28
Creator Microsoft® Word for Microsoft 365
Producer Microsoft® Word for Microsoft 365

Automated analysis

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Cross-references

No references are available for this certificate.

Processing updates

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Raw data

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  "cert_id": 5261,
  "dgst": "b2b7178dc27bc498",
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      "elements": [
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        "AES-CBC-CS3A6627",
        "SHA2-512A6627",
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        "HMAC-SHA2-512A6627",
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        "AES-XTS Testing Revision 2.0A6627",
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  "pdf_data": {
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    "keywords": {
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      "cplc_data": {},
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      "fips_cert_id": {
        "Cert": {
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      "fips_certlike": {
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          "AES-192": 1,
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          "HMAC-SHA-1": 2,
          "SHA-1": 6,
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          "SHA2": 1,
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          "SHA3-384": 2,
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      "fips_security_level": {
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            "SHA3-256": 6,
            "SHA3-384": 2,
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      "ic_data_group": {},
      "javacard_api_const": {},
      "javacard_packages": {},
      "javacard_version": {},
      "os_name": {},
      "pq_crypto": {
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      "randomness": {
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        "RNG": {
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      "side_channel_analysis": {},
      "standard_id": {
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          "FIPS 180-4": 5,
          "FIPS 186-5": 1,
          "FIPS 198-1": 5,
          "FIPS 202": 4,
          "FIPS186-5": 4
        },
        "ISO": {
          "ISO/IEC 19790": 2
        },
        "NIST": {
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          "SP 800-38E": 1
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      },
      "symmetric_crypto": {
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            "AES-192": 1,
            "AES-256": 1
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          "CAST": {
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        "constructions": {
          "MAC": {
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        }
      },
      "tee_name": {
        "AMD": {
          "PSP": 3
        },
        "IBM": {
          "SSC": 1
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      },
      "tls_cipher_suite": {},
      "vendor": {
        "Cisco": {
          "Cisco": 5,
          "Cisco Systems": 2,
          "Cisco Systems, Inc": 30
        }
      },
      "vulnerability": {}
    },
    "policy_metadata": {
      "/CreationDate": "D:20260730161821-04\u002700\u0027",
      "/Creator": "Microsoft\u00ae Word for Microsoft 365",
      "/ModDate": "D:20260730161821-04\u002700\u0027",
      "/Producer": "Microsoft\u00ae Word for Microsoft 365",
      "pdf_file_size_bytes": 604704,
      "pdf_hyperlinks": {
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        "elements": []
      },
      "pdf_is_encrypted": false,
      "pdf_number_of_pages": 28
    }
  },
  "state": {
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    "module": {
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      "convert_ok": true,
      "download_ok": true,
      "extract_ok": true,
      "json_hash": null,
      "source_hash": null,
      "txt_hash": null
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    "policy": {
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  },
  "web_data": {
    "_type": "sec_certs.sample.fips.FIPSCertificate.WebData",
    "caveat": "No assurance of the minimum strength of generated SSPs (e.g., keys). No assurance of minimum security of SSPs (e.g., keys, bit strings) that are externally loaded, or of SSPs established with externally loaded SSPs",
    "certificate_pdf_url": "https://csrc.nist.gov/CSRC/media/projects/cryptographic-module-validation-program/documents/certificates/May 2026_030626_0716.pdf",
    "date_sunset": "2031-05-10",
    "description": "The Cisco Linux Kernel FIPS Object Module (KFOM) is a firmware hybrid cryptographic library that serves the operating system kernel. It does not implement any security protocols, instead only allowing for Linux kernel applications access to using approved algorithms.",
    "embodiment": "MultiChipStand",
    "exceptions": [
      "Non-invasive security: N/A",
      "Mitigation of other attacks: N/A"
    ],
    "fw_versions": null,
    "historical_reason": null,
    "hw_versions": null,
    "level": 1,
    "mentioned_certs": {},
    "module_name": "Linux Kernel FIPS Object Module (KFOM) Cryptographic Module",
    "module_type": "Firmware-Hybrid",
    "revoked_link": null,
    "revoked_reason": null,
    "standard": "FIPS 140-3",
    "status": "active",
    "sw_versions": null,
    "tested_conf": null,
    "validation_history": [
      {
        "_type": "sec_certs.sample.fips.FIPSCertificate.ValidationHistoryEntry",
        "date": "2026-05-11",
        "lab": "Gossamer Security Solutions",
        "validation_type": "Initial"
      },
      {
        "_type": "sec_certs.sample.fips.FIPSCertificate.ValidationHistoryEntry",
        "date": "2026-08-03",
        "lab": "Gossamer Security Solutions",
        "validation_type": "Update"
      }
    ],
    "vendor": "Cisco Systems, Inc.",
    "vendor_url": "http://www.cisco.com"
  }
}