"Length of the data to decrypt is invalid" error when trying to issue a smart card using Internet Explorer 8
Posted by Nikolay Lazitskiy, Last modified by Mikhail Yakovlev on 22 February 2019 04:29 PM

Problem:
"Length of the data to decrypt is invalid" error occurs when attempting to issue a smart card along with certificate writing to it.

Cause:
The error might be conditioned by outdated Internet Explorer version (below 8.0.7601.17514). Absence of corresponding security updates for Windows XP x86 SP3/x64 SP1 might also be the cause.

Solution:
Install the latest updates available for the Windows version used.

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