gt;</span> Unsigned.size_t</code></dt><dd><p><code>pk_encryption_set_recipient_key encryption public_key public_key_len</code></p><p>Set the recipient's public key for encrypting to</p></dd></dl><dl><dt class="spec value" id="val-pk_ciphertext_length"><a href="#val-pk_ciphertext_length" class="anchor"></a><code><span class="keyword">val</span> pk_ciphertext_length : <span><a href="../Types/PkEncryption/index.html#type-t">Types.PkEncryption.t</a> Ctypes_static.ptr</span> <span>&#45;&gt;</span> Unsigned.size_