Memory leak on OpenSSL handling

[perusio]

There seems to be problems in the way the OpenSSL contexts and all the related objects are handled. Here's a summary of the valgrind:

1 cert

==21055== LEAK SUMMARY:
==21055==    definitely lost: 0 bytes in 0 blocks
==21055==    indirectly lost: 0 bytes in 0 blocks
==21055==      possibly lost: 0 bytes in 0 blocks
==21055==    still reachable: 96,936 bytes in 2,922 blocks
==21055==         suppressed: 0 bytes in 0 blocks

10 certs

==27546== LEAK SUMMARY:
==27546==    definitely lost: 1,656 bytes in 9 blocks
==27546==    indirectly lost: 44,275 bytes in 1,147 blocks
==27546==      possibly lost: 24 bytes in 1 blocks
==27546==    still reachable: 198,976 bytes in 4,510 blocks
==27546==         suppressed: 0 bytes in 0 blocks

100 certs

==31289== LEAK SUMMARY:
==31289==    definitely lost: 18,216 bytes in 99 blocks
==31289==    indirectly lost: 488,065 bytes in 12,667 blocks
==31289==      possibly lost: 24 bytes in 1 blocks
==31289==    still reachable: 1,218,676 bytes in 20,350 blocks
==31289==         suppressed: 0 bytes in 0 blocks

1000 certs

==784== LEAK SUMMARY:
==784==    definitely lost: 183,816 bytes in 999 blocks
==784==    indirectly lost: 4,920,954 bytes in 127,703 blocks
==784==      possibly lost: 6,576 bytes in 162 blocks
==784==    still reachable: 11,417,625 bytes in 178,753 blocks
==784==         suppressed: 0 bytes in 0 blocks

As you can see it scales linearly with the number of certs starting from 10. My OpenSSL fu is nil so I can't see what is missing, or even if it's supposed to be like that.

Thanks,