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Editorial Team
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Asked: 2026-06-18T14:25:54+00:00

Does anyone know how to add HMAC based authentication for WSO2 API Manager? Background

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Does anyone know how to add HMAC based authentication for WSO2 API Manager?

Background – We’re rolling out WSO2 API Manager 1.3 in front of our publicly available web services and we need JavaScript applications (once authenticated) to be able to consume the services directly (not via a service proxy on their server to handle the OAuth authentication).

Does anyone know the easiest way to get this implemented in WSO2? We’ve started implementing an AbstractHandler and Authenticator but this seems overkill – someone must have done this or have some pointers on this?

Thank you very much in advance.

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1 Answer

  1. Editorial Team

    You can write your own handler which can implement the AbstractHandler.
    Signature verification can be implemented as an API handler similar to the ‘APIAuthenticationHandler’. The access token that was provided earlier can be used as the Mac Identifier. The consumer secret can be used as the Mac key, which is a shared secret between the consumer and the provider used to sign the normalized request string.

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