SecureBlackbox 16: The signature made with SecureBlackbox can't be verified

Note: This article applies only to SecureBlackbox Legacy. For future development please consider using the latest version.

The first thing to check is whether the document is normalized. Normalization includes the conversion of end-of-line characters to LF (0x0A). By default, TElDOMDocument does not perform normalization. To normalize the document when loading, use the LoadFromStream method with the NormalizeNEL parameter set to true.

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