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| howto:encrypted_partitions 2011/05/09 19:31 | howto:encrypted_partitions 2017/09/06 18:38 current | ||
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| But be aware that this will have a huge impact on performance (expect to get about 10% the performance of normal disk access...) | But be aware that this will have a huge impact on performance (expect to get about 10% the performance of normal disk access...) | ||
| - | ====== Firmware dns323_FW_110b07_BETA.zip ====== | + | |
| + | ===== Firmware dns323_FW_110b07_BETA.zip ===== | ||
| Looks like works both encrypted loopback (see instructions below) and dm-crypt + device-mapper (both modules already in kernel). | Looks like works both encrypted loopback (see instructions below) and dm-crypt + device-mapper (both modules already in kernel). | ||
| For work with dm-crypt you need to setup ffp, take all necessary encryption modules from page below (http://www.x-linked.de/dns323/fw105/cryptloop/modules/crypto/). | For work with dm-crypt you need to setup ffp, take all necessary encryption modules from page below (http://www.x-linked.de/dns323/fw105/cryptloop/modules/crypto/). | ||
| Line 64: | Line 65: | ||
| Regarding cryptsetup looks like it is not nesessary because you can setup encrypted device using only device-mapper & dmsetup tool (see http://www.saout.de/misc/dm-crypt/) | Regarding cryptsetup looks like it is not nesessary because you can setup encrypted device using only device-mapper & dmsetup tool (see http://www.saout.de/misc/dm-crypt/) | ||
| - | ====== Performance in case of dm-crypt ====== | + | |
| - | It is really nightmare. F.E. DNS-323 use Samsung 1,5TB drive. | + | |
| + | |||
| + | ==== Performance in case of dm-crypt ==== | ||
| + | It is really nightmare (if you think to move 1TB data from not encrypted disk to encrypted). F.E. DNS-323 use Samsung 1,5TB drive. | ||
| <code bash> | <code bash> | ||
| dd bs=10M if=/dev/zero of=zero count=149 | dd bs=10M if=/dev/zero of=zero count=149 | ||
| Line 72: | Line 76: | ||
| dd bs=10M if=zero of=/dev/null count=149 | dd bs=10M if=zero of=/dev/null count=149 | ||
| </code> takes ~8min (3MB/sec) for encrypted drive and 30s for normal drive (49MB/sec) | </code> takes ~8min (3MB/sec) for encrypted drive and 30s for normal drive (49MB/sec) | ||
| - | From one point of view it is normal to see some movies and play sound from that drives | + | |
| + | From another point of view it is not so bad and you can see Full DH movies and play sound from DNS-323 in case if it is connected to your WiFi which is not faster than 2MB/sec. | ||
