Managed PKI in Microsoft Azure

This is a high assurance, dedicated Microsoft PKI delivered as a managed service, hosted in Azure. With our Managed PKI in Azure you have a fully customised, high assurance solution with full control of your own cryptographic keys, managed from an ultra-secure, accredited facility in the UK.


  • High assurance Microsoft PKI service
  • Customer specific Certificate Policy and Certification Practice Statement
  • Bespoke design and controls, specific to customer requirements
  • Certificates for devices, computers, domain controller, Wi-FI, SSL, TLS, users
  • Full support for Microsoft device auto-enrolment and Microsoft Express Route
  • Cryptographic keys stored/managed outside of Azure in ultra-secure UK facility
  • Standalone/offline Root CA managed under your control to tScheme assurance
  • Only you can access the HSM stored Private Keys
  • Secure integration between on-premise and Azure servers, using protected VPN
  • Azure provides high SLAs in-line with your own corporate requirements


  • Quick and simplified deployment using tested templates and group policy
  • Securely integrated into AD in a Microsoft fully supported model
  • AD extended into Azure IaaS, you remain in full control
  • Reduces risk by maintaining PKI security though tScheme assurance processes
  • Provides best practice PKI management processes for your business
  • Bespoke design fits your business requirements
  • Efficient control of lifecycle of certificates to manage risks
  • Apply digital signatures to your contracts, documents, webforms, emails
  • Remote monitoring and trouble-shooting of PKI resources running in Azure
  • Provides cost savings over in-house PKI deployments


£2000 per instance per month

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 PKI Technology

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 After the configuration, assurance and technical details are agreed, the On Boarding process for THE TRUSTIS AZURE MICROSOFT PKI is straightforward and typically takes 4-8 weeks. Completion of the On Boarding process concludes with a Key Signing Ceremony. The solution will be built on Azure and will require you to have an appropriate Azure IaaS license together with the relevant Microsoft infrastructure component licenses.
Service documentation Yes
Documentation formats PDF
End-of-contract data extraction Off Boarding is triggered when the customer implements an alternative PKI and wishes to migrate the key pair(s). In any scenario, Trustis can be commissioned to provide a migration plan supported by Trustis professional services to ensure the process is carried out securely,
swiftly and with the least disruption.
End-of-contract process Off Boarding is triggered when if customer wants to migrate the key pair(s), before the keys are naturally due to expire. In this case Trustis can sell the hardware, if usable life remains in it, to the customer at current market rate. In any scenario, Trustis would provide a migration plan supported by Trustis professional services to ensure the process is carried out securely, swiftly and with the least disruption

Using the service

Using the service
Web browser interface Yes
Supported browsers
  • Internet Explorer 7
  • Internet Explorer 8
  • Internet Explorer 9
  • Internet Explorer 10+
  • Microsoft Edge
  • Firefox
  • Chrome
  • Safari 9+
  • Opera
Application to install Yes
Compatible operating systems
  • Linux or Unix
  • MacOS
  • Windows
Designed for use on mobile devices No
Accessibility standards None or don’t know
Description of accessibility This is not applicable, consists managed services.
Accessibility testing This is not applicable to the service,
What users can and can't do using the API REST, C++ / COM / Windows based programming environment
API documentation Yes
API documentation formats PDF
API sandbox or test environment No
Customisation available No


Independence of resources We operate as geographically independent contingency site in support of the Certificate Factory. This site is examined as part of all our compliance assessments. The contingency site benefits from similar facilities to the TSC in terms of networking and power. Contingency tests to confirm the ability to move operations to the site are conducted regularly.
An additional third secure site is used for storage of security components to ensure resilience and to support high availability services.


Service usage metrics Yes
Metrics types O Data will be retained by Trustis in accordance with the Certificate Policy. Due to the possible need to verify old documents signed with a private key that corresponds to the public key in a certificate which may have lapsed some time before, this retention period needs to be substantial. Data is retained for a minimum of 7 years.
o At the end of this period, the personal data is destroyed
Reporting types
  • API access
  • 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 Data Extraction: Registration data can be requested and will be presented in MS Word or MS Excel formats as appropriate.
Data export formats Other
Other data export formats
  • Excel
  • Word
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
  • Private network or public sector network
  • TLS (version 1.2 or above)
Data protection within supplier network
  • TLS (version 1.2 or above)
  • IPsec or TLS VPN gateway

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 Yes
User authentication Username or password
Access restrictions in management interfaces and support channels DESCRIBE PROCESS
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 Yes
Any other security accreditations
  • TSd0106_3-01 Approval Profile Certificate Status Management
  • TSd0104_3-01 Approval Profile Certificate Generation
  • TSd0105_3-01 Approval Profile Certificate Dissemination
  • TSd0106_3-01 Approval Profile Certificate Status Management
  • EIDAS EN 319 401 v2.1.1 General TSP requirements
  • EIDAS EN 319 411 pt 1 v.1.1.1 eIDAS CAs
  • CA Browser Forum Baseline Requirements

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 conducts routine vulnerability scans, ITHC and penetration tests in accordance with the ISMS. Internal and external resources are utilised and independent external teams are CREST/CHECK certified. All vulnerabilities are assessed and appropriate treatment plans are formulated and tracked.
AlienVault’s Unified Security Manager is used to conduct internal vulnerability scans and reporting.
Trustis Patch Management Policy sets out specific timescales for systems patching and provides for Critical/Emergency patches to be applied as soon as is operationally possible.
Automated tools, GFI LANGuard, are deployed to monitor and manage patching levels.
Protective monitoring type Supplier-defined controls
Protective monitoring approach Automated tools AlienVault’s USM and OSSIM are deployed to monitor, report, alert to any potential security issues.
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 is identified, trained personnel respond in accordance with Security Incident policies.
Incidents are responded to as soon as is operationally possible and assessment is made as to how the occurrence is managed.
Incident management type Supplier-defined controls
Incident management approach Trustis’ Incident Management policy and procedures follows best practice as required by ISO27001:2013. Examples of incidents and events are defined and subsequent actions are designed into security incident responses.
Users report incidents either by telephone, email or directly to managers or the Trustis Security Manager. All incidents are recorded in the Service Desk system and coordinated through to closure by the investigating body.
Incident reports are generated upon completed investigation and these are shared with interested parties under NDA, as required contractually, legally, regulatory. All incidents are reported to the Security Management Forum and subsequently to the Board of Directors.

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 £2000 per instance per month
Discount for educational organisations No
Free trial available No


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