The National Stock Exchange (NSE) on October 12, 2023, issued a notification regarding the Encryption/Decryption of Interactive Messages
The following has been stated namely: -
• It states that in order to enhance the security posture for interactive messages, encryption of messages on an end-to-end basis is necessary.
• It states that a software solution-based approach (a combination of TLS 1.3 security protocol and AES-256 bits-based symmetric encryption) is being implemented for encryption of interactive message traffic between member applications and Exchange. While encryption of messages within member environments towards their clients will need to be done by respective members.
• It states an interim coexistence phase for accepting both encrypted and non-encrypted message traffic shall be provided by the Exchange, after which the Exchange shall discontinue the non-encrypted message flow.
• The Details of the coexistence and migration plan for Neat Adapter / NEAT and Direct connection via NNF have been attached
• It states that for further details of implementation, the members may refer to the latest NNF API document (Version 5.6) detailing the encryption protocol is available on the Exchange website under path: https://static.nseindia.com//s3fs-public/inline-files/TP_CUR_Trimmed_NNF_PROTOCOL_5.6_0.pdf
[Notification No. NSE/CD/58901]
