Centric Trust Services
Licensed for trusted time stamping and document signing in Kenya.
Centric Limited is a licensed and accredited Electronic Certification Service Provider (E-CSP) under Kenya’s National Public Key Infrastructure, licensed by the Communications Authority of Kenya for time stamping and document signing.
Certificates are issued under our DDSign brand and chain to Kenya’s national trust anchor, so organisations can move approvals, contracts, and records fully online, with proof of who signed, what was signed, and when.
Licensed & accredited E-CSP
Listed on Kenya’s official register of licensed and accredited E-CSPs cleared to offer services, published by KE-CIRT under the Communications Authority of Kenya.
View the official registerTrusted time stamping
An RFC 3161 time-stamp proves that a document, filing, or log existed at a specific moment and has not been altered since: evidence that matters when a deadline, filing window, or priority date is in dispute.
Proof of existence and integrity for documents and data
Any later change to a time-stamped file is detectable
Long-term evidence for contracts, filings, and records
Time-stamps from a licensed provider, not a local clock
Document signing
Advanced electronic signatures identify who signed, prove the document has not changed since, and cannot be disowned afterwards. Identity is verified once; certificates are issued against it.
Signatures tied to a verified identity
Documents sealed against changes after signing
Signer, document, and time recorded together
Integrates with your existing document and approval systems
Built to be checked
A signature is only worth what the system behind it can prove. Our Certificate Policy, Certification Practice Statement, revocation list, and verification guide are public in the PKI repository at certs.ddsign.ae, and we are audited against them every year.
Your private key never leaves you: we never generate or hold it
Our signing key sits in FIPS 140-2 Level 3 hardware
Revocations published within one business day
Every issuance record kept for seven years
Why licensed matters
Ordinary e-signatures can be hard to prove later. Signing and time stamping from a licensed E-CSP give digital documents the assurance that auditors, regulators, and counterparties expect, so paper approvals no longer have to slow the work down.
Who it's for
Government & public sector
Paperless approvals and records with verifiable signatures.
Financial institutions
Signed, time-stamped contracts and customer documents.
Legal & professional services
Evidence of what was agreed, by whom, and when.
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