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ippStsInvalidCryptoKeyErr
This status should be treated as a key-validation failure, not as a generic memory or buffer-size problem. IPP uses it when the requested cryptographic operation is suspended because the key material is invalid or compromised for the selected primitive.
The important diagnostic boundary is between representation and trust. A key can be stored in the expected byte length and still be rejected because it violates algorithm-specific constraints, domain parameters, or library checks.
Recommended checks
- Regenerate or re-import the key through the normal key-loading path; do not patch bytes in place.
- Verify algorithm, mode, key length, and domain parameters together.
- Record whether the key came from random generation, import, unwrap, or persistent storage.
Intel IPP Error Reporting · Intel IPP Cryptography Reference
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