808bits

IBM® z/OS® Version 2 Release 4 ICSF PKCS #11 Cryptographic Module

FIPS 140-2 certificate #4591 · IBM Corporation · data as of 2026-08-28
Historical. Moved to historical list due to sunsetting. Federal agencies may reference historical validations for existing systems only, not for new procurement.
Caveat: When operated in FIPS mode with module IBM(R) z/OS(R) Version 2 Release 4 Security Server RACF(R) Signature Verification Module validated to FIPS 140-2 under Cert. #2691 operating in FIPS mode

Certificate

Certificate number4591
StandardFIPS 140-2
Statushistorical
Overall level1
Module typeSoftware-Hybrid
EmbodimentMulti-Chip Stand Alone
VendorIBM Corporation · website
Software versionsICSF level HCR77D0 with APAR OA63132
Hardware versionsCOP chips integrated within processor unit [1] and COP chips integrated within processor unit and P/N 02WN654-N37880 (Low Power) [2]
Firmware versionsFeature 3863 (aka FC3863) with System Driver Level 41C [1], and Feature 3863 (aka FC3863) with System Driver Level 41C and CCA 7.0.68z [2]

Module description

ICSF is a software element of z/OS that works with hardware cryptographic features and the Security Server (RACF) to provide secure, high-speed cryptographic services in the z/OS environment. ICSF, which runs as a started task, provides the application programming interfaces by which applications request the cryptographic services.

Security level exceptions

  • Mitigation of Other Attacks: N/A

Approved algorithms

AlgorithmCAVP certificate
AESA389, C1772
CKGvendor affirmed
DRBGC1763, C1772
DSAC1772
ECDSAC1772
HMACC1772
KAS-SSCA2666, A2667
KTS
KTS
KTS
RSAC1766, C1772, C1799
SHSA389, C1772
Triple-DESA389

Allowed algorithms

AES (Cert. #A389, key unwrapping; key establishment methodology provides between 128 and 256 bits of encryption strength); MD5; NDRNG; RSA (key wrapping; key establishment methodology provides between 112 and 149 bits of encryption strength); Triple-DES (Cert. #A389, key unwrapping; key establishment methodology provides 112 bits of encryption strength)

Tested configurations

  • IBM z/OS Version 2 Release 4 running on an IBM z15 with CP Assist for Cryptographic Functions [1]
  • IBM z/OS Version 2 Release 4 running on an IBM z15 with CP Assist for Cryptographic Functions with CEX7A [2] (single-user mode)

Validation history

DateTypeLab
2023-09-11Initialatsec information security corporation

Status timeline

As observed by this tracker's snapshots. NIST publishes no dates for list moves; observation began 2026-08-21, so earlier changes carry no date.

  • 2026-08-21: first observed by this tracker, status historical
  • Validation dates on record: 2023-09-11

Source documents