B</td>
</tr>
<tr class="row-odd"><td>Twofish</td>
<td>MCrypt</td>
<td>128 / 16, 192 / 24, 256 / 32</td>
<td>CBC, CTR, CFB, CFB8, OFB, OFB8, ECB</td>
</tr>
<tr class="row-even"><td>CAST-128</td>
<td>MCrypt</td>
<td>40-128 / 5-16</td>
<td>CBC, CTR, CFB, CFB8, OFB, OFB8, ECB</td>
</tr>
<tr class="row-odd"><td>CAST-256</td>
<td>MCrypt</td>
<td>128 / 16, 192 / 24, 256 / 32</td>
<td>CBC, CTR, CFB, CFB8, OFB, OFB8, ECB</td>
</tr>
<tr class="row-even"><td>Loki97</td>
<td>MCrypt</td>
<td>128 / 16, 192 / 24, 256 / 32