Cryptography-as-a-Service (CaaS)

Protect your data and systems in the Cloud using certified high performance HSMs without employing crypto experts or buying expensive hardware and having unused capacity. Hosted and expertly managed in the UK while, crucially, you retain complete control over your encryption keys. Buy what you need when you need it!


  • FIPS 140-2(Level 3) validated & EAL4+ certified Hardware Security Modules
  • Supports all the major algorithms and cryptographic APIs
  • HSMs located at Trustis or in your preferred cloud hoster
  • High availability (active-active) architecture for resilience
  • High performance via load balancing and platform processing speed
  • Secure partitioning of key material for multiple requirements
  • Two person control of sensitive cryptographic operations
  • Master control of encryption keys always remains with the customer
  • Connectivity may include PSN
  • Shared or dedicated secure backup of key material


  • Pay only for what cryptographic processing you need
  • Avoids unnecessary capital purchase of capacity rarely, if ever, used
  • Managed by SC Cleared operators (CESG Crypto Custodians as needed)
  • High performance HSMs with burst capacity for peak periods
  • 24x7 operation with ITIL compliant customer service
  • High assurance afforded by tScheme & ISO27001 controls
  • Meet your exact needs with a bespoke Key Management Policy
  • Provides a central or distributed cryptographic processing service
  • Protect data at rest, data in transit or sign transactions
  • Ensures consistently strong handling of cryptographic material for information assurance


£1400 per instance per month

  • Free trial available

Service documents

G-Cloud 9



Robert Hann

+44 (0)7818 552411

Service scope

Service scope
Software add-on or extension No
Cloud deployment model Hybrid cloud
Service constraints Trustis run a scheduled maintenance regime but this does not impact on published availability.
System requirements Supports the available Safenet HSM interfaces as published

User support

User support
Email or online ticketing support Email or online ticketing
Support response times Service requests are acknowledged within 1 hour during the working day and if a 24x7 support package is not in place, they are acknowledged to within 1 hour of the next working day. Different resolution targets apply based on severity of the issue.
User can manage status and priority of support tickets No
Phone support Yes
Phone support availability 9 to 5 (UK time), Monday to Friday
Web chat support No
Onsite support Yes, at extra cost
Support levels All services operate 24x7. The standard support package is 9am - 5pm Monday-Friday (excluding holidays). Other support options are available. A customer service engineer is allocated for each service request.
Support available to third parties Yes

Onboarding and offboarding

Onboarding and offboarding
Getting started Trustis agrees the preferred interface to the HSM, sets up the VPN between the HSM and customer's application, assists/trains the customer to install and configure the HSM client and tests the system. Training is largely unnecessary except for installing and configuring the HSM client process.
Service documentation Yes
Documentation formats PDF
End-of-contract data extraction The customer provides a Backup HSM for Trustis to load their live and historical key material. They can then reload this onto another set of HSMs.
End-of-contract process If the customer exits the contract and requires their key material, on a T&M basis Trustis can assist the customer in backing up their key material.

Using the service

Using the service
Web browser interface No
Application to install Yes
Compatible operating systems
  • Linux or Unix
  • Windows
Designed for use on mobile devices No
Accessibility standards None or don’t know
Description of accessibility This is not applicable, consists of machine interface.
Accessibility testing This is not applicable to the service, consists of machine interface.
What users can and can't do using the API The APIs/protocols are defined in the Service Description. Users select the most appropriate interface method to the HSMs for their applications at service setup. Once setup there is no means (or need) to change the interface without service interruption.
API documentation Yes
API documentation formats PDF
API sandbox or test environment No
Customisation available No


Independence of resources Our HSM clusters never exceed 50% utilisation and once we reach this threshold we add further HSMs to the cluster(s).


Service usage metrics Yes
Metrics types Customer is able to see some HSM logs via the client at their end.
Reporting types Reports on request


Supplier type Not a reseller

Staff security

Staff security
Staff security clearance Conforms to BS7858:2012
Government security clearance Up to Developed Vetting (DV)

Asset protection

Asset protection
Knowledge of data storage and processing locations Yes
Data storage and processing locations United Kingdom
User control over data storage and processing locations No
Datacentre security standards Complies with a recognised standard (for example CSA CCM version 3.0)
Penetration testing frequency At least once a year
Penetration testing approach ‘IT Health Check’ performed by a CHECK service provider
Protecting data at rest
  • Physical access control, complying with CSA CCM v3.0
  • Encryption of all physical media
Data sanitisation process Yes
Data sanitisation type Explicit overwriting of storage before reallocation
Equipment disposal approach Complying with a recognised standard, for example CSA CCM v.30, CAS (Sanitisation) or ISO/IEC 27001

Data importing and exporting

Data importing and exporting
Data export approach By their nature, HSMs prevent data export. See answer for Contract Exit.
Data export formats Other
Other data export formats This question is not applicable to the service
Data import formats Other
Other data import formats This questions is not applicable to the service

Data-in-transit protection

Data-in-transit protection
Data protection between buyer and supplier networks
  • TLS (version 1.2 or above)
  • IPsec or TLS VPN gateway
Data protection within supplier network TLS (version 1.2 or above)

Availability and resilience

Availability and resilience
Guaranteed availability Service availabilities are published in the Service Description, for CaaS availability is 99.5%. We offer service credits on large value contracts only.
Approach to resilience Available on request
Outage reporting We provide email alerts to customers affected.

Identity and authentication

Identity and authentication
User authentication needed No
Access restrictions in management interfaces and support channels The user has the management component on their side so their access controls apply. For the support portal, all users have UID/PW and have been previously trained so met in person.
Access restriction testing frequency At least once a year
Management access authentication Other

Audit information for users

Audit information for users
Access to user activity audit information Users have access to real-time audit information
How long user audit data is stored for User-defined
Access to supplier activity audit information Users contact the support team to get audit information
How long supplier audit data is stored for At least 12 months
How long system logs are stored for At least 12 months

Standards and certifications

Standards and certifications
ISO/IEC 27001 certification Yes
Who accredited the ISO/IEC 27001 Lloyds Register Quality Assurance Ltd
ISO/IEC 27001 accreditation date Issued on the 21/02/2017
What the ISO/IEC 27001 doesn’t cover All Trustis business operations and locations are covered by the scope of the ISO27001:2013 certification
ISO 28000:2007 certification No
CSA STAR certification No
PCI certification No
Other security accreditations No

Security governance

Security governance
Named board-level person responsible for service security Yes
Security governance accreditation Yes
Security governance standards ISO/IEC 27001
Information security policies and processes We have over 150 Policies and Procedures, all of which are audited as part of our company wide ISO27001:2013 certification. These are available to customers with an NDA in place. Our Security Management Committee meets monthly and consists of personnel from all parts of the organisation to review operational security. Policy or procedural changes are disseminated and training provided if required.

Operational security

Operational security
Configuration and change management standard Conforms to a recognised standard, for example CSA CCM v3.0 or SSAE-16 / ISAE 3402
Configuration and change management approach We have strict change control on all our customer systems and configurations and the process is audited for our ISO27001 certification. Once a change is approved after operational, functional and security assessment, two person control is often necessary depending on the security impact of the change.
Vulnerability management type Conforms to a recognised standard, for example CSA CCM v3.0 or SSAE-16 / ISAE 3402
Vulnerability management approach Trustis have developed a ISO27001:2013 Information Security Management System consisting of information security policies and procedures; Physical, documentary, personnel and technical. This is audited through a 3-year audit plan. All policies and procedures are reviewed regularly and promulgated.
The ISMS includes Key Performance Indicators to measure performance of the ISMS and compliance with company security policy and procedures.
The Trustis Security Manager reports to the Director of Managed Services but also has a direct line of reporting to the Trustis Board of Directors. Trustis operate a Security Management forum for management review and reporting regarding information security and the ISMS.
Protective monitoring type Supplier-defined controls
Protective monitoring approach Trustis employ reactive and proactive controls.
Automated tools such as AlienVault’s USM and OSSIM are deployed to monitor, report and alert to any potential security issues. This includes IDS, HIPS, log events & vulnerability management.
Logs are controlled and protected so they cannot be manipulated. Networks are synchronised from a single trusted time source.
Operations Staff are trained in the deployment, management and analysis of automated tools.
Trustis has a Protective Monitoring policy that fits closely with its Incident Management & Reporting Policy. When an event or potential incident is identified, trained personnel respond in accordance with Security Incident policies.
Incident management type Supplier-defined controls
Incident management approach Trustis follows ISO27001:2013 and ISO27002 for its incident management policies and procedures.
Any incidents are reported in accordance with the policy and investigated thoroughly by trained and experienced personnel.
Disciplinary processes are in place as well as security awareness training for all personnel.
Following a complete investigation, measures to prevent such an occurrence are considered and designed into technical, personnel, physical or documentary controls.

Secure development

Secure development
Approach to secure software development best practice Independent review of processes (for example CESG CPA Build Standard, ISO/IEC 27034, ISO/IEC 27001 or CSA CCM v3.0)

Public sector networks

Public sector networks
Connection to public sector networks No


Price £1400 per instance per month
Discount for educational organisations No
Free trial available Yes
Description of free trial A test HSM can be setup with the effort required provided via our SFIA Card.


Pricing document View uploaded document
Skills Framework for the Information Age rate card View uploaded document
Service definition document View uploaded document
Terms and conditions document View uploaded document
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