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CRYPT_E_INVALID_INDEX
The caller requested a signer, recipient, certificate, CRL, or attribute by an index that is no longer valid for the current message state.
What to check for CRYPT_E_INVALID_INDEX
- Validate bounds against the count returned for the currently decoded message.
- After deleting a signer, certificate, CRL, or unauthenticated attribute through CryptMsgControl, reacquire indices; Microsoft documents that existing indices can become invalid.
- Do not reuse cached index values across a new message handle or a new decode operation.
Diagnostic interpretation
CRYPT_E_INVALID_INDEX has the HRESULT value 0x80091008. AllStat records the condition as “The index value is not valid.”.
Evidence to capture
- Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions this result or the crypt / index operation.
- compare the failing machine with a working one at the same configuration boundary: component version, policy, registration, identity, and target resource.
Retry and recovery
” has changed.
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