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Tokenization

Tokenize Sensitive Data Without Building a Centralized Token Vault

CryptoHub generates and validates vaultless tokens without querying a centralized vault, reducing operational complexity, eliminating a high-value data target, and giving downstream systems a consistent reference value without exposing the original. Supports format-preserving and non-format-preserving tokenization, Luhn preservation, and configurable character retention. Keys protected by FIPS 140-3 Level 3 HSMs.

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Vaultless tokenization_ token generation and validation without vault lookups

Vaultless tokenization: cryptographic token generation and validation without vault lookups

Format-preserving tokenization using NIST SP 800-38G FPE and FPT algorithms

Format-preserving tokenization using NIST SP 800-38G Format-Preserving Encryption (FPE) and FPT algorithms

Non-format-preserving tokenization for internal systems and analytics pipelines

Non-format-preserving tokenization for internal systems and analytics pipelines

trailing character retention for payment card data

Luhn check digit preservation and configurable leading/trailing character retention for payment card data

Audit trails, access controls, and revocation support

Role-based detokenization access control with full audit trail

What Is Vaultless Tokenization?

Tokenization replaces a sensitive value, a payment card number, account identifier, patient record, or any field requiring a consistent reference without exposing the original, with a non-sensitive reference token. The token has no mathematical relationship to the original and can only be reversed through an authenticated request to the tokenization service.

CryptoHub supports both vaultless and vault-based tokenization. Vaultless tokenization generates and validates tokens through cryptographic operations, without storing a mapping table in a centralized repository. For high-volume environments processing millions of transactions, this simplifies scale and operational complexity. Vault-based tokenization remains a valid architecture when your systems require it. CryptoHub supports both, with HSM-backed key management and the same admin model either way.

Vaultless Tokenization Reduces PCI DSS Scope

This is the primary reason payments and banking organizations evaluate tokenization.

When PANs are replaced with tokens before they reach downstream systems, those systems interact with the token rather than the card number. Systems that handle only tokens may fall outside the cardholder data environment, reducing the number of systems, processes, and people subject to PCI DSS controls. Vaultless tokenization takes this further: without a central vault storing original values, there's no vault to bring into scope, protect, and audit under PCI DSS requirements.

CryptoHub produces the tokenization documentation and audit evidence auditors require: access control logs, key management records, and tokenization policy documentation generated automatically from the same platform. Validate scope reduction with your QSA. CryptoHub provides the evidence set that makes that conversation straightforward.

CryptoHub's cryptographic tokenization keys are protected by FIPS 140-3 Level 3 validated HSMs, a control level QSAs look for when evaluating whether tokenization is implemented with appropriate cryptographic rigor.

Tokenization Beyond Payments

PCI DSS scope reduction drives most tokenization evaluations in the payments vertical, but the underlying capability applies anywhere a sensitive field needs a consistent, referenceable value without exposing the original data.

Healthcare

Healthcare                                  

Patient identifiers, MRN values, and other PHI fields can be tokenized to reduce the number of systems that handle protected health information. Analytics and reporting systems work with the token; the underlying PHI never enters those environments. HIPAA access control and audit logging requirements are addressed through CryptoHub's centralized controls and audit trail.  

Enterprise and Identity

Enterprise and identity           

Account numbers, employee IDs, member identifiers, and internal reference values used across applications and databases. Consistent tokens across systems support analytics and reporting. Non-format-preserving tokenization is appropriate where downstream systems don't validate field structure.  

General Purpose Sensitive Fields

General-purpose sensitive fields

Any structured sensitive data field where an application needs to store, process, or reference a value without retaining the original. Social security numbers, government identifiers, contract reference numbers, the tokenization engine applies the same NIST-aligned approach regardless of the field type.  

The tokenization profile configuration in CryptoHub controls which algorithm, key, and format rules apply for each tokenization type. Payment card profiles, healthcare identifier profiles, and general-purpose profiles coexist on the same platform with separate key management and access control policies.

Format-Preserving and Non-Format-Preserving Tokenization

Format-preserving tokenization produces a token that matches the format and structure of the original value: a 16-digit payment card number produces a 16-digit token that passes field-format validation in downstream systems. No changes to applications, databases, or reporting systems that validate field length or character type. CryptoHub implements format-preserving tokenization using NIST SP 800-38G FPE and FPT algorithms.

For payment card data: CryptoHub supports Luhn check digit preservation and configurable retention of leading or trailing characters. A token can pass Luhn validation or display the last four digits while protecting the full PAN.

Non-format-preserving tokenization is the right choice when downstream systems don't validate field format. Internal analytics pipelines, data warehouses, and reporting systems that use a tokenized value as a consistent reference identifier don't need the token to look like the original. Non-format-preserving tokenization is simpler to implement in these contexts and is the standard choice for healthcare identifiers, employee IDs, and general-purpose sensitive fields.  

One Platform for Keys, Tokens, and Audit Logs

Most enterprise tokenization tools are point solutions: a vault, a token, an API. Key management lives somewhere else. Audit logs are split across systems. When the tokenization vendor and the key management platform are separate, so are the policies, the administrative overhead, and the compliance documentation.

CryptoHub integrates tokenization directly with the key management estate. Tokenization policies and profiles, encryption keys, access controls, and audit logs are managed on the same platform as database TDE, file encryption, and application encryption. One policy framework, one audit trail, one administrative interface for the full data protection environment.

Application and service integration is available through standard interfaces including REST API, PKCS#11, and KMIP, and additional platforms supported through integration engineering.

Algorithm Lifecycle and Crypto-Agility

Cryptographic algorithm requirements change. PCI DSS and related standards periodically revise acceptable algorithms and key lengths. Post-quantum planning is adding transition pressure for cryptographic infrastructure across the industry.

With a standalone tokenization tool, an algorithm transition typically means application changes across every system that calls the tokenization API. With CryptoHub, algorithm and key lifecycle are managed centrally. Applications continue calling the same tokenization service. The platform handles the transition.

CryptoHub's tokenization uses NIST SP 800-38G FPE and FPT algorithms, current NIST-recommended methods for format-preserving tokenization. Key rotation, cryptographic algorithm updates, and policy changes are applied at the platform level without requiring modifications to integrated applications.

HSM-Backed Root of Trust

Cryptographic tokenization keys in CryptoHub are generated, stored, and used within FIPS 140-3 Level 3 validated hardware security modules. Key material never exists outside HSM protection.

Software-based tokenization implementations protect key material with operating system controls. HSM-backed key protection satisfies the cryptographic requirements for PCI DSS, FIPS, and other frameworks that specify hardware-based key storage, and it removes the OS attack surface from the key protection model.

rootOfTrust

Deployment models

CryptoHub is available as an on-premises hardware appliance, a virtual appliance for private or hybrid cloud environments, or CryptoHub Cloud, a fully managed SaaS deployment. Organizations with strict data residency requirements run on-premises hardware. Teams that need rapid deployment without infrastructure overhead use CryptoHub Cloud. Hybrid configurations are supported when workloads are distributed across both.

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On-Premises Appliance

CryptoHub deployed in your data center with HSMs under your physical control. Common in regulated financial services and healthcare environments with data residency requirements.

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Hybrid / Virtual Appliance

Tokenization operations run in one environment with key management centralized in another. Common in architectures where processing happens at the edge or in the cloud, and key custody must remain on-premises.

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CryptoHub Cloud (SaaS)

CryptoHub deployed in a cloud environment with HSM-backed key protection. Suitable for organizations that have moved infrastructure to cloud but require hardware-backed cryptographic controls.

Frequently Asked Questions

What is vaultless tokenization?

Vaultless tokenization generates and validates tokens through cryptographic operations without storing a mapping between the original value and the token. There's no central vault holding original values. The token can only be reversed through an authenticated request, and validation happens through cryptographic means rather than a lookup. For high-volume environments, this simplifies scale and reduces operational complexity.

Format-preserving vs. non-format-preserving tokens

Format-preserving tokenization produces a token that matches the structure of the original value, length, character type, and check digits. A 16-digit PAN produces a 16-digit token that passes format validation in downstream systems without requiring application changes. Non-format-preserving tokenization produces a token with a different format. Use format-preserving when downstream systems validate field structure; use non-format-preserving when format compatibility is not required.

Does CryptoHub tokenization reduce PCI DSS scope?

Tokenization can reduce PCI DSS scope by replacing PANs with tokens in systems that don't need to process actual card data. Those systems may fall outside the cardholder data environment depending on deployment and isolation. Vaultless tokenization avoids creating a vault of original values that would itself need to be brought into scope. Validate scope reduction with your QSA. CryptoHub provides the audit logs, access controls, and key management documentation auditors require.

Which tokenization algorithms does CryptoHub use?

CryptoHub implements NIST SP 800-38G FPE (Format-Preserving Encryption) and FPT (Format-Preserving Tokenization) for format-preserving tokenization profiles. These are the current NIST-recommended methods. Non-format-preserving profiles use CryptoHub's standard cryptographic key-based token generation.

What data types can be tokenized?

CryptoHub tokenization works on any sensitive string value: account numbers, SSNs, patient identifiers, employee IDs, government identifiers, or any field where a consistent reference token is needed without exposing the underlying value. Profile configuration controls which algorithm and key are used for each tokenization type.

How does detokenization access control work?

Detokenization requires an authenticated request through CryptoHub. Role-based access controls determine which applications and users can request detokenization for each token type. All detokenization operations are logged in CryptoHub's detokenization audit trail with requester identity, timestamp, and token type.

Is tokenization integrated with key management?

Tokenization is an integrated cryptographic function within the CryptoHub platform. Tokenization profiles, key management, access controls, and audit logs are managed in the same platform as database TDE, file encryption, and enterprise key management. This is the core architectural difference from standalone tokenization tools.

What deployment options are available for CryptoHub tokenization?

CryptoHub supports on-premises, cloud-hosted, and hybrid deployment models. All configurations use HSM-backed key protection and the same integrated platform for key management, access control, and audit logging.

Featured Resources

"By deploying Futurex devices, Ecentric will be the first payments provider in Africa to deploy ‘point-to-point’ encryption (P2PE), thereby establishing the strongest protection possible... P2PE will provide a competitive advantage and is a major step forward in assisting our customers..."

 

- Hassen Sheik, CEO

Ecentric

Evaluate Vaultless Tokenization for Your Environment

If you're assessing vaultless tokenization architecture for PCI DSS scope reduction, healthcare identifier protection, or enterprise data fields that need consistent reference values without exposure, CryptoHub is worth a direct evaluation. The architectural difference, no vault holding original values, platform-integrated cryptographic key management, HSM-backed keys, has real implications for high-volume environments and organizations managing sensitive data across multiple use cases.

A Futurex data protection architect can walk through your current environment, where vaultless and vault-based tokenization fit, and how CryptoHub integrates with your existing key management and encryption infrastructure. Start for Free.