Commit Graph

20 Commits

Author SHA1 Message Date
Pedro F. Giffuni
3728855a0f sys/geom: adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:17:37 +00:00
Pedro F. Giffuni
e8d5712284 sys/geom: spelling fixes in comments.
No functional change.
2016-04-29 20:56:58 +00:00
Allan Jude
7a3f5d11fb Replace sys/crypto/sha2/sha2.c with lib/libmd/sha512c.c
cperciva's libmd implementation is 5-30% faster

The same was done for SHA256 previously in r263218

cperciva's implementation was lacking SHA-384 which I implemented, validated against OpenSSL and the NIST documentation

Extend sbin/md5 to create sha384(1)

Chase dependancies on sys/crypto/sha2/sha2.{c,h} and replace them with sha512{c.c,.h}

Reviewed by:	cperciva, des, delphij
Approved by:	secteam, bapt (mentor)
MFC after:	2 weeks
Sponsored by:	ScaleEngine Inc.
Differential Revision:	https://reviews.freebsd.org/D3929
2015-12-27 17:33:59 +00:00
Maxim Sobolev
6dfb88de83 Kill leading whilespace. 2005-11-30 19:07:28 +00:00
Hajimu UMEMOTO
68527b3aad stop including rijndael-api-fst.h from rijndael.h.
this is required to integrate opencrypto into crypto.
2005-03-11 15:42:51 +00:00
Warner Losh
fa521b0366 /* -> /*- for copyright notices, minor format tweaks as necessary 2005-01-06 18:27:30 +00:00
Christian Brueffer
44d086bde6 Fix typo in a comment.
MFC after:	3 days
2004-12-15 12:18:41 +00:00
Poul-Henning Kamp
cbca0b53e5 Respect that G_BDE_MAXKEYS is a compile time variable. 2004-09-11 17:57:51 +00:00
Poul-Henning Kamp
f4db0cbe58 Interior decoration changes. 2003-10-07 09:28:07 +00:00
Poul-Henning Kamp
82db45a5af Use sys/endian.h instead of geom_enc.c for endian-agnostfication. 2003-04-03 11:33:51 +00:00
Poul-Henning Kamp
0b94902f81 Forward compatibility: NULL check the passed in meta argument. 2003-03-25 09:02:41 +00:00
Poul-Henning Kamp
b4b138c27f Including <sys/stdint.h> is (almost?) universally only to be able to use
%j in printfs, so put a newsted include in <sys/systm.h> where the printf
prototype lives and save everybody else the trouble.
2003-03-18 08:45:25 +00:00
Poul-Henning Kamp
4ec353005c Move the g_stat struct to its own .h file, we will export it to other code.
Insted of embedding a struct g_stat in consumers and providers, merely
include a pointer.

Remove a couple of <sys/time.h> includes now unneeded.

Add a special allocator for struct g_stat.  This allocator will allocate
entire pages and hand out g_stat functions from there.  The "id" field
indicates free/used status.

Add "/dev/geom.stats" device driver whic exports the pages from the
allocator to userland with mmap(2) in read-only mode.

This mmap(2) interface should be considered a non-public interface and
the functions in libgeom (not yet committed) should be used to access
the statistics data.
2003-02-08 13:03:57 +00:00
Poul-Henning Kamp
7725f875ee Add the new statistics structure, put one in consumers and providers.
include <sys/time.h> as necessary.
2003-02-07 21:43:34 +00:00
Poul-Henning Kamp
88806cc28c Fix two blunders in the mapping functions which can lead to corrupt data,
for request sizes larger than the sectorsize or for multi-key setups.

See warning mailed to current@ for details of recovery.

Found by:	Marcus Reid <marcus@blazingdot.com>
2002-12-18 19:57:27 +00:00
Poul-Henning Kamp
3a4c5955ce Use unsigned for an index.
Sponsored by:	DARPA & NAI Labs.
Approved by:	re (blanket).
2002-12-01 15:47:49 +00:00
Poul-Henning Kamp
5afa461402 Run a revision on the GBDE encryption facility.
Replace ARC4 with SHA2-512.
Change lock-structure encoding to use random ordering rather for obscurity.
Encrypt lock-structure with AES/256 instead of AES/128.
Change kkey derivation to be MD5 hash based.
Watch for malloc(M_NOWAIT) failures and ditch our cache when they happen.
Remove clause 3 of the license with NAI Labs consent.

Many thanks to "Lucky Green" <shamrock@cypherpunks.to> and "David
Wagner" <daw@cs.berkeley.edu>, for code reading, inputs and
suggestions.

This code has still not been stared at for 10 years by a gang of
hard-core cryptographers.  Discretion advised.

NB: These changes result in the on-disk format changing: dump/restore needed.

Sponsored by:   DARPA & NAI Labs.
2002-11-04 09:27:01 +00:00
Poul-Henning Kamp
6c4a970782 Change the kkey generation cherry-picker to use MD5.
Sponsored by:	DARPA & NAI Labs
2002-10-30 22:13:54 +00:00
Poul-Henning Kamp
8e91949016 Constify input to the arc4 seed function.
Implement the lockfile hunting in sector zero.

Sponsored by:	DARPA & NAI Labs.
2002-10-20 11:09:58 +00:00
Poul-Henning Kamp
19b5c7bc4b Add Geom Based Disk Encryption to the tree.
This is an encryption module designed for to secure denial of access
to the contents of "cold disks" with or without destruction activation.

Major features:

   * Based on AES, MD5 and ARC4 algorithms.
   * Four cryptographic barriers:
        1) Pass-phrase encrypts the master key.
        2) Pass-phrase + Lock data locates master key.
        3) 128 bit key derived from 2048 bit master key protects sector key.
        3) 128 bit random single-use sector keys protect data payload.
   * Up to four different changeable pass-phrases.
   * Blackening feature for provable destruction of master key material.
   * Isotropic disk contents offers no information about sector contents.
   * Configurable destination sector range allows steganographic deployment.

This commit adds the kernel part, separate commits will follow for the
userland utility and documentation.

This software was developed for the FreeBSD Project by Poul-Henning Kamp and
NAI Labs, the Security Research Division of Network Associates, Inc.  under
DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
research program.

Many thanks to Robert Watson, CBOSS Principal Investigator for making this
possible.

Sponsored by:   DARPA & NAI Labs.
2002-10-19 17:02:17 +00:00