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AS4

Incorrect X25519 URI used for key agreement

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By cjw on Thu, 10/15/2026 - 13:30
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AS4

The constant ALGO_ID_KEYAGREEMENT_X25519 defined in EncryptedKeyPartHandlerX25519 uses an incorrect URI:

http://w3.org/2021/04/xmldsig-more#x25519

The URI is missing the required www. prefix.

According to RFC 9231, Section 2.7.1, the correct URI is:

http://www.w3.org/2021/04/xmldsig-more#x25519

This causes receiving AS4 systems to reject messages with an UNSUPPORTED_ALGORITHM error during decryption.

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Ed25519 certificate cannot be imported

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By tavius80 on Thu, 05/07/2026 - 14:36
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AS4

Hello,
I used the latest build (39) and attempted to import several ED25519 certificates. However, I encountered the following error: Cannot invoke "Object.hashCode()" because key is null.
The same certificates were imported successfully in other applications without any issues.
Is there a way to resolve this problem?

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How to create a Certificate Signing Request for (AS-4 BDEW Profile) SMPKI

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By fha on Tue, 04/29/2025 - 16:24
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AS4

Hello,

I am currently testing an AS4 communication solution (BDEW profiles) for one of our partners in the energy market.

In order to participate in AS4-based market communication in accordance with SM-PKI specifications, a Certificate Signing Request (CSR) must be created for a test certificate from Deutsche Telekom Security GmbH.

Could someone please let me know if they can provide specific tools, scripts, or instructions to help with the creation of such a CSR?

Thank you in advance for your assistance.

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