The error message "error:0308010C:digital envelope routines::unsupported" indicates that the digital envelope routines used in the cryptographic operation are unsupported. This error typically occurs when trying to perform an operation that is not supported by the cryptographic library or algorithm being used.
To resolve this error, you can try the following steps:
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Ensure that you are using a supported cryptographic library or algorithm. Check the documentation or specifications of the library or algorithm you are using to determine if the operation you are trying to perform is supported.
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Verify that you have the latest version of the cryptographic library installed. Outdated versions of libraries may lack support for certain operations. Upgrade to the latest version if necessary.
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If you are using a third-party library, check for any known issues or bug reports related to the specific operation you are trying to perform. It is possible that the operation is not implemented or has limitations in the library you are using.
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If you are using a custom implementation of a cryptographic algorithm, review your code to ensure that it is correctly implemented and handles all the necessary operations.
If none of the above steps resolve the issue, you may need to reach out to the support or documentation resources associated with the cryptographic library or algorithm you are using for further assistance.