enough random bytes then olm_pk_encryption_last_error() will be &quot;OLM_INPUT_BUFFER_TOO_SMALL&quot;.</p></dd></dl><dl><dt class="spec value" id="val-pk_decryption_size"><a href="#val-pk_decryption_size" class="anchor"></a><code><span class="keyword">val</span> pk_decryption_size : unit <span>&#45;&gt;</span> Unsigned.size_t</code></dt><dd><p><code>pk_decryption_size ()</code></p><p>The size of a decryption object in bytes</p></dd></dl><dl><dt class="spec value" id="val-pk_decryption"><a href="#val-pk_dec