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CipherSpecs and CipherSuites in IBM MQ

IBM MQ supports TLS 1.2 CipherSpecs, and RSA and Diffie-Hellman algorithms. However, we can enable deprecated CipherSpecs, if we need to do so.

See Enable CipherSpecs for information on:

  • CipherSpecs supported by IBM MQ.
  • How you enable deprecated SSL 3.0 and TLS 1.0 CipherSpecs.

IBM MQ supports the RSA and Diffie-Hellman key exchange and authentication algorithms. The size of the key used during the TLS handshake can depend on the digital certificate we use, but some CipherSpecs include a specification of the handshake key size. Larger handshake key sizes provide stronger authentication. With smaller key sizes, the handshake is faster.

Parent topic: TLS security protocols in IBM MQ


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Last updated: 2020-10-04