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Friday, July 21, 2023

Data Technical News #2023 - 12
Nasdaq to Enhance Client Certification Key Encryption

Markets Impacted:

  • US Equities and Options Markets

Products Impacted:

  • Nasdaq Workstation (NWS)
  • ACT Workstation
  • IPO Workstation
  • Certificates required through security.nasdaq.com
  • Products accessed via: https://nwsfdata.nasdaq.com

Contact Information:

What you need to know:

On September 29, 2023, Nasdaq will be introducing an enhancement to the client certificate request process. Customers will now have additional encryption options during their recertification process.

What is changing?

On September 29, 2023, Nasdaq will be introducing an enhancement to the client certificate request process. Currently, certificates are downloaded via security.nasdaq.com and are provided as 1024 bits by default.

With this enhancement, Nasdaq will be providing customers with the ability to select either 1024-bit, 2048-bit or 4096-bit certificates.

All bit lengths will allow for successful authentication to Nasdaq managed applications.

We are offering this enhancement for customers electing to improve their security posture when connecting into Nasdaq. Please note that this will only affect applications which require a client certificate.

As a reminder, certificates are renewed every two years. If you have an existing certificate that is not due to expire, you do NOT need to request a renewal once this change is implemented. Current application access will function as normal.

Products Impacted

  • Nasdaq Workstation (NWS)
  • ACT Workstation
  • IPO Workstation
  • Certificates required through security.nasdaq.com
  • Products accessed via: https://nwsfdata.nasdaq.com
Please note, that while the below products can be accessed via https://nwsfdata.nasdaq.com, where a certificate would be required, if they are accessed via nasdaqtrader.com or via FTP there is no change to implementation:
  • Daily List*
  • Short Sale Volume and Transaction Reports
  • Short Interest Reports
  • Fundamental Data*
  • Nasdaq Daily Share Volume Report (DSV)
  • Index Watch
*These two products can also be accessed through nasdaqtrader.com without a certificate.

Contact Information

For additional information, please contact Nasdaq Trading Services at +1 212 231 5180.


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Nasdaq (Nasdaq: NDAQ) is a leading global provider of trading, clearing, exchange technology, listing, information and public company services. Through its diverse portfolio of solutions, Nasdaq enables customers to plan, optimize and execute their business vision with confidence, using proven technologies that provide transparency and insight for navigating today's global capital markets. As the creator of the world's first electronic stock market, its technology powers more than 90 marketplaces in 50 countries, and 1 in 10 of the world's securities transactions. Nasdaq is home to approximately 3,900 total listings with a market value of approximately $13 trillion. To learn more, visit: business.nasdaq.com.

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