In this post, you’ll learn about the error “TPM_E_PCP_UNSUPPORTED_PSS_SALT 0x40290423” that is returned when working with COM based APIs or libraries in Windows.
COM Error Message
TPM_E_PCP_UNSUPPORTED_PSS_SALT 0x40290423
What is COM?
Microsoft’s COM stands for Component Object Model. Component Object Model (COM) is a networked, object-oriented framework for building interoperable binary software components. Microsoft’s OLE (compound documents), ActiveX (Internet-enabled components), and other products are built on the COM base technology.
Error Description
Below is the description of this COM Error.
The requested salt size for signing with RSAPSS does not match what the TPM uses.
