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KeyperPLUS Hardware Security Module

Protect cryptographic keys throughout their lifecycle

Important Announcement

End of Life of Ultra Intelligence & Communications’ KeyperPLUS – Updated 1 October 2023

The purpose of this announcement is to inform you that KeyperPLUS, one of our Hardware Security Module (HSM) products, has reached End Of Life (EOL). This decision has been made after careful consideration and is part of our ongoing effort to continuously improve and innovate our product offerings.

As per the prior EOL notice issued in March 2023, KeyperPLUS will no longer be sold after 12 months from 6 March 2023, subject to available remaining stock.

This position remains unchanged with respect to the product. However, as a result of existing customer feedback received to the EOL notice published in March 2023, we have taken the decision to extend our offer to provide support and maintenance for the product by 2 years from 31 March 2025 to now until 31 March 2027, unless otherwise contractually agreed.

We understand that this change may impact your business and would like to assure you that we are committed to minimising any disruption, and as such have extended our support end date. Our team is available to discuss alternative solutions that may meet your needs.

Please do not hesitate to contact us at [email protected] if you have any questions or concerns regarding this notice.


Simon Croall

Vice President Business Development & Innovation
Ultra Cyber Limited
Ultra Intelligence & Communications

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KeyperPLUS is a network Hardware Security Module (HSM) that provides robust and reliable cryptographic technologies to give the ultimate layer of protection for your most sensitive key material, used to protect your most highly sensitive information. Going far beyond the layers of security offered by mediums including software, smart cards and USB tokens. Trust and integrity are derived from the security of the underlying signing and encryption keys, meaning that the protection of these keys is critical to the security of the system.

Key Features

Capabilities above Level 3 HSMs

  • Multi-factor, identity-based authentication using N of M smartcards
  • Active and passive tamper detection and response
  • Temperature/Voltage Environmental failure protection

Capabilities above Level 4 (Physical) HSMs

  • Common Criteria EAL4 evaluated operating software
  • Formal model design and validation

Other features:

  • Industry standard interface libraries: PKCS#11, MSCAPI, and CNG
  • Platforms supported (to date): Windows Server 2012R2, 2016, 2019, 2022 (64 bit), RHE Linux 7.9 & 8.3 (64 bit)
  • Third-party interoperability: Entrust Authority Security Manager, Oracle database TDE, UniCERT, Microsoft ADCS, IIS, Bloombase Storesafe, EJBCA, ISC BIND, OpenDNSSEC, KnotDNS, OpenVPN, LibraSwan, OpenSSL, Java, Apache, Nginx
  • Remote management application software provided, permitting run-time application key backup, audit log retrieval and firmware update
  • N of M storage key backup via smartcard
  • Encrypted application key backup on to smartcard(s) or USB
  • Load Balancer software provides redundancy and improved overall system performance
  • Rack-mount installation kit including redundant power supply available

Integration Support

Ultra supports your project with our expert services in:

  • Assistance with third-party integration
  • Periodic replacement of internal battery
  • Firmware and external management tools updates
  • Implementation of bespoke algorithms and APIs

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