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    sodium_crypto_sign_ed25519_pk_to_curve25519

    (PHP 7 >= 7.2.0, PHP 8)

    sodium_crypto_sign_ed25519_pk_to_curve25519 — Convert an Ed25519 public key to a Curve25519 public key

    Description

    sodium_crypto_sign_ed25519_pk_to_curve25519(string $public_key): string

    Given an Ed25519 public key, calculate the birationally equivalent X25519 public key.

    Parameters

    public_key

    Public key suitable for the crypto_sign functions.

    Return Values

    Public key suitable for the crypto_box functions.

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