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ippStsIvalidPublicKey
The spelling of the constant is historical, but the diagnostic meaning is clear: the ECC public key did not pass IPP validation. A public key is not just a pair of coordinates; it must be encoded correctly and belong to the selected elliptic-curve group.
Common causes include wrong-curve data, truncated coordinates, missing point conversion, an imported compressed point that was not decoded first, or a peer key that was never validated before use.
Check before blaming transport
- Curve name and field size negotiated by the protocol.
- Point encoding format and coordinate length.
- Point-at-infinity and point-on-curve validation.
Intel IPP Error Reporting · Intel IPP Cryptography Reference · NIST SP 800-56A public-key validation
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