Hello,
Depend on RFC OAuth1 must support HMAC-SHA1 and RSA-SHA1 signature methods, also there is a possibility to setup custom signature methods:
OAuth does not mandate a particular signature method, as each
implementation can have its own unique requirements. Servers are
free to implement and document their own custom methods.
Recommending any particular method is beyond the scope of this
specification. Implementers should review the Security
Considerations section (Section 4) before deciding on which method to
support.
So my question to Trello dev team, if there is other implementations of other(more secured) signature methods?
