al PKCS#5 v1.5 specification. They only offer 56 bits of protection since they both use DES.</p>

</dd>
<dt id="PBE-SHA1-RC2-64-PBE-MD2-RC2-64-PBE-MD5-RC2-64-PBE-SHA1-DES"><b>PBE-SHA1-RC2-64</b>, <b>PBE-MD2-RC2-64</b>, <b>PBE-MD5-RC2-64</b>, <b>PBE-SHA1-DES</b></dt>
<dd>

<p>These algorithms are not mentioned in the original PKCS#5 v1.5 specification but they use the same key derivation algorithm and are supported by some software. They are mentioned in PKCS#5 v2.0. They use either 64 bit RC2 or 56 bit DES.