Linux Kernel FIPS Object Module (KFOM) Cryptographic Module
Cisco Systems, Inc. - FIPS 140 #5261
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.
Key facts
- Scheme
- FIPS 140
- Certificate
- 5261
- Standard
- FIPS 140-3
- Security level
- Level 1
- Status
- active
- Vendor
- Cisco Systems, Inc.
- Module type
- Firmware-Hybrid
- Embodiment
- MultiChipStand
- Lab
- Gossamer Security Solutions
- First validated
- May 11, 2026
- Sunset date
- May 10, 2031
- 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
Algorithms
Post-quantum: LMS
- AES-CBC
- AES-CBC-CS3
- AES-CCM
- AES-CMAC
- AES-CTR
- AES-ECB
- AES-GCM
- AES-XTS Testing Revision 2.0
- Counter DRBG
- ECDSA SigVer (FIPS186-5)
- Hash DRBG
- HMAC DRBG
- HMAC-SHA-1
- HMAC-SHA2-224
- HMAC-SHA2-256
- HMAC-SHA2-384
- HMAC-SHA2-512
- KAS-ECC CDH-Component SP800-56Ar3
- KAS-ECC-SSC Sp800-56Ar3
- LMS SigVer
- SHA-1
- SHA2-224
- SHA2-256
- SHA2-384
- SHA2-512
- SHA3-224
- SHA3-256
- SHA3-384
- SHA3-512
Algorithm families of the CAVP certificates listed for this module, plus post-quantum algorithms named in its documents.
CVEs that may affect this product
sec-certs has not matched any CVE to this certificate. That is not proof the product is unaffected.
Related CVEs and certificate references are automated matches by sec-certs, not reviewed by humans: treat them as "may be affected" and verify before acting.
Documents and sources
Source: sec-certs.org (CRoCS, Masaryk University), from NIST CMVP and the Common Criteria Portal - dataset of September 21, 2026 - synced October 15, 2026
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