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Why portable KYC is a game-changer for African investing

Cryptographic mutualisation of customer due diligence, explained simply. Ed25519 architecture, inter-broker portability, and what it means for diaspora investors.

April 1, 2026 12 min By Inopay Team

KYC, a refresher

KYC = Know Your Customer. The process by which a financial institution verifies identity, address, source of funds, risk tolerance. Mandated by AML regulations. Historically, each broker does its own KYC — meaning a multi-broker investor submits the same documents 3-5 times.

The problem with non-portable KYC

For a diaspora investor wanting BRVM + BVMAC access via two brokers:

Significant opportunity cost and friction discouraging market expansion.

The portable KYC idea

A single dossier, verified once by a trusted authority (or technical aggregator), cryptographically signed, and recognised by all brokers in the network.

1. Ed25519 signatures

Ed25519 is an elliptic-curve signature algorithm. Short signatures (64 bytes), fast verification (~40 μs), ~128-bit security. The issuing authority (Inopay) generates a key pair. Each KYC attestation is signed with the private key. Any broker verifies it in milliseconds with the public key.

2. Claims-carrying attestation

The attestation contains: dossier ID, validation date, DD level (KYC1/2/3), document hashes, expiration, Ed25519 signature. Documents themselves stay encrypted in sovereign storage (MinIO, AES-256-GCM) and are only disclosed to a broker upon explicit investor consent.

Concrete flow

  1. One-time: KYC on Inopay (6 min, mobile or web).
  2. Inopay verifies (OCR, liveness, PEP/sanctions screening, adverse media).
  3. If approved: attestation is signed and published on your profile. 12-month expiry, renewable.
  4. When connecting to a partner broker: you consent to share your attestation. The broker verifies it cryptographically — without redoing the process.
  5. Investing can start immediately.

Measurable benefits

For investors

For brokers

For regulators

Recognised by CREPMF 2026 doctrine. Since March 2026, the Regional Council explicitly grants legal value to cryptographically signed portable KYC. More in our analysis.

What about privacy?

A poorly designed portable KYC could create a centralised super-profile — unacceptable. Inopay's architecture minimises this surface:

Beyond the gadget: a redesigned market

Portable KYC changes competitive dynamics. Brokers no longer compete on onboarding (mutualised) but on what matters: execution, fees, reporting quality, support. For investors, a more liquid, transparent, less captive market. For BRVM / BVMAC / GSE, an efficiency leap that can significantly expand the investor base — particularly the diaspora.

Further reading

Ready to invest in BRVM, BVMAC or GSE?

Create your free Inopay account. Portable KYC in 6 minutes, access to all partner brokers.