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7.1.1. SerializePublicKey and DeserializePublicKey

7.1.1. SerializePublicKey and DeserializePublicKey​

For P-256, P-384, and P-521, the SerializePublicKey() function of the KEM performs the uncompressed Elliptic-Curve-Point-to-Octet-String conversion according to [SECG]. DeserializePublicKey() performs the uncompressed Octet-String-to-Elliptic-Curve-Point conversion.

For X25519 and X448, the SerializePublicKey() and DeserializePublicKey() functions are the identity function, since these curves already use fixed-length byte strings for public keys.

Some deserialized public keys MUST be validated before they can be used. See Section 7.1.4 for specifics.

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