Hello,
Please refer to Configure WS-Security Decoration Assertion - CA API Gateway - 9.3 - CA Technologies Documentation
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- Signature Digest Algorithm: Choose the Signature Digest Algorithm to use: SHA-1, SHA-256, SHA-384, SHA-512. The default "<Unchanged>" setting uses the algorithm in the target message's existing decoration requirements.
The Signature Digest Algorithm can also be set in the Sign Element Assertion.
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So, only SHA-1, SHA-256, SHA-384, SHA-512 are available.
For SHA2, we may need to create an idea.
Regards,
Mark