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Remove section committed by mistake. It is not yet ready.

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This commit is contained in:
Pawel Jakub Dawidek 2006-06-06 07:10:42 +00:00
parent 8091e0f54b
commit ba0b146814
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=159329
1 changed files with 0 additions and 33 deletions
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33
sbin/geom/class/eli/geli.8
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@ -443,39 +443,6 @@ Additional options include:
.It Fl v
Be more verbose.
.El
.Sh COMPONENTS
.Ss User derived key (Derived-Key).
This is a SHA-512 hash calculated from concatenated components: data from
specified keyfiles and user's passphrase.
Passphrase is by default strengthen with PKCS#5v2/SHA-1 before it goes through
SHA-512.
There could be up to two such keys based on independed passphrases and keyfiles.
This key is used to protect (encrypt) the
.Sy Master-Key
stored on provider (inside metadata).
.Ss Master-Key.
This is 128 bytes long random data. First 64 bytes are used as the
.Sy Data-Key
and the second 64 bytes are used as the
.Sy IV-Key .
There is also another 64 bytes after the Master-Key, which are reserved for
.Fn HMAC_SHA512 "HMAC_SHA512(Derived-Key, 0)" "Master-Key"
(used to verify correctness of the
.Sy Derived-Key ) .
The entire
.Sy Master-Key
and
.Fn HMAC
result is encrypted with the given encryption algorithm.
Key for encryption is
.Fn HMAC_SHA512 "Derived-Key" "1"
.Ss Data-Key.
This is the key used to encrypt every single sector with the given algorithm in
CBC mode.
.Ss IV-Key.
This is the key used for creating IV.
IV is calculated with: SHA-256(IV-Key + sector-byte-offset).
.\" TODO
.Sh SYSCTL VARIABLES
The following
.Xr sysctl 8