Awarded for completing Public Key Cryptography in Depth and passing its exam, demonstrating the ability to construct and evaluate RSA and elliptic curve key pairs, Diffie-Hellman key exchange, hybrid encryption and the practical failure modes that undermine otherwise sound designs.
Certificates are designed to be checked, not just displayed.
The credential is valid for 12 months from issue. Its public page states the expiry date, and renewing means passing the current exam again — so the credential always reflects the current material.