Re: [CentOS] LUKS full disk Encryption question

2012-01-08 Thread nux
Ljubomir Ljubojevic writes: > My laptop is 3-4 years old, no AES addon in it. And I can see only high > end CPU's have them, so I will not be buying one sore several years (I > also use laptop in the field, grain silos, etc so I will not buy > anything that is expensive). > Then all the more

Re: [CentOS] LUKS full disk Encryption question

2012-01-08 Thread Ljubomir Ljubojevic
On 01/08/2012 02:13 PM, Jorge Fábregas wrote: > On 01/07/2012 06:40 PM, Ljubomir Ljubojevic wrote: >> What will be the performance impact on my Celeron 1.73 GHz CPU and/or >> hdd speed? > > To further add to what has been said, check if your particular CPU > supports the AES-NI instruction set whic

Re: [CentOS] LUKS full disk Encryption question

2012-01-08 Thread Jorge Fábregas
On 01/07/2012 06:40 PM, Ljubomir Ljubojevic wrote: > What will be the performance impact on my Celeron 1.73 GHz CPU and/or > hdd speed? To further add to what has been said, check if your particular CPU supports the AES-NI instruction set which should provide some performance boost: http://en.wi

Re: [CentOS] LUKS full disk Encryption question

2012-01-08 Thread nux
Ljubomir Ljubojevic writes: > From RHEL docs: > "The default implementation of LUKS in Red Hat Enterprise Linux is AES > 128 with a SHA256 hashing. Ciphers that are available are: > > AES - Advanced Encryption Standard - FIPS PUB 197 > Twofish (A 128-bit Block Cipher) > Serpent >

Re: [CentOS] LUKS full disk Encryption question

2012-01-07 Thread Devin Reade
Ljubomir Ljubojevic wrote: > Hm, I forgot to mention that it would be for laptop. MSI VR601x, Celeron > 1.73 GHz (Single Core), 80 GB SATA, 2GB RAM, CentOS 6.2 x86_64, > encryption would be activated by Anaconda on ext4 partitions belonging > to LVM Volume Group. I had guessed that you were t

Re: [CentOS] LUKS full disk Encryption question

2012-01-07 Thread Ljubomir Ljubojevic
On 01/08/2012 12:56 AM, Devin Reade wrote: > Ljubomir Ljubojevic wrote: > >> What will be the performance impact on my Celeron 1.73 GHz CPU and/or >> hdd speed? > > Well, the usual "it depends on your [exact] environment" is the real answer. > > However from a subjective perspective I've found tha

Re: [CentOS] LUKS full disk Encryption question

2012-01-07 Thread Devin Reade
Ljubomir Ljubojevic wrote: > What will be the performance impact on my Celeron 1.73 GHz CPU and/or > hdd speed? Well, the usual "it depends on your [exact] environment" is the real answer. However from a subjective perspective I've found that the only time that I've really noticed a performanc

[CentOS] LUKS full disk Encryption question

2012-01-07 Thread Ljubomir Ljubojevic
From RHEL docs: "The default implementation of LUKS in Red Hat Enterprise Linux is AES 128 with a SHA256 hashing. Ciphers that are available are: AES - Advanced Encryption Standard - FIPS PUB 197 Twofish (A 128-bit Block Cipher) Serpent cast5 - RFC 2144 cast6 - RFC 2612"