sodium_crypto_kx_publickey

(PHP 7 >= 7.2.0, PHP 8)

sodium_crypto_kx_publickey — Extract the public key from a crypto_kx keypair

function sodium_crypto_kx_publickey(#[\SensitiveParameter] string $key_pair): string

Extract the public key from a crypto_kx keypair.

key_pair: X25519 keypair, such as one generated by sodium_crypto_kx_keypair().

X25519 public key.