30 Nov, 2011
1 commit
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Now that serpent.c has been cleaned from checkpatch warnings,
we can do clean rename.Signed-off-by: Jussi Kivilinna
Signed-off-by: Herbert Xu
09 Nov, 2011
1 commit
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Rename module from serpent.ko to serpent_generic.ko and add module alias. This
is to allow assembler implementation to autoload on 'modprobe serpent'. Also
add driver_name and priority for serpent cipher.CC: Dag Arne Osvik
Signed-off-by: Jussi Kivilinna
Signed-off-by: Herbert Xu
21 Oct, 2011
1 commit
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This patch adds a basic userspace configuration API for the crypto layer.
With this it is possible to instantiate, remove and to show crypto
algorithms from userspace.Signed-off-by: Steffen Klassert
Signed-off-by: Herbert Xu
22 Sep, 2011
2 commits
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Rename blowfish to blowfish_generic so that assembler versions of blowfish
cipher can autoload. Module alias 'blowfish' is added.Also fix checkpatch warnings.
Signed-off-by: Jussi Kivilinna
Signed-off-by: Herbert Xu -
Patch splits up the blowfish crypto routine into a common part (key setup)
which will be used by blowfish crypto modules (x86_64 assembly and generic-c).Also fixes errors/warnings reported by checkpatch.
Signed-off-by: Jussi Kivilinna
Signed-off-by: Herbert Xu
14 Mar, 2011
1 commit
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ESP with separate encryption/authentication algorithms needs a special
treatment for the associated data. This patch add a new algorithm that
handles esp with extended sequence numbers.Signed-off-by: Steffen Klassert
Acked-by: Herbert Xu
Signed-off-by: David S. Miller
27 Nov, 2010
1 commit
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Changed Makefile to use -y instead of -objs.
Signed-off-by: Tracey Dent
Signed-off-by: Herbert Xu
26 Nov, 2010
1 commit
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This patch adds the af_alg plugin for symmetric key ciphers,
corresponding to the ablkcipher kernel operation type.Keys can optionally be set through the setsockopt interface.
Once a sendmsg call occurs without MSG_MORE no further writes
may be made to the socket until all previous data has been read.IVs and and whether encryption/decryption is performed can be
set through the setsockopt interface or as a control message
to sendmsg.The interface is completely synchronous, all operations are
carried out in recvmsg(2) and will complete prior to the system
call returning.The splice(2) interface support reading the user-space data directly
without copying (except that the Crypto API itself may copy the data
if alignment is off).The recvmsg(2) interface supports directly writing to user-space
without additional copying, i.e., the kernel crypto interface will
receive the user-space address as its output SG list.Thakns to Miloslav Trmac for reviewing this and contributing
fixes and improvements.Signed-off-by: Herbert Xu
Acked-by: David S. Miller
19 Nov, 2010
2 commits
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This patch adds the af_alg plugin for hash, corresponding to
the ahash kernel operation type.Keys can optionally be set through the setsockopt interface.
Each sendmsg call will finalise the hash unless sent with a MSG_MORE
flag.Partial hash states can be cloned using accept(2).
The interface is completely synchronous, all operations will
complete prior to the system call returning.Both sendmsg(2) and splice(2) support reading the user-space
data directly without copying (except that the Crypto API itself
may copy the data if alignment is off).For now only the splice(2) interface supports performing digest
instead of init/update/final. In future the sendmsg(2) interface
will also be modified to use digest/finup where possible so that
hardware that cannot return a partial hash state can still benefit
from this interface.Thakns to Miloslav Trmac for reviewing this and contributing
fixes and improvements.Signed-off-by: Herbert Xu
Acked-by: David S. Miller
Tested-by: Martin Willi -
This patch creates the backbone of the user-space interface for
the Crypto API, through a new socket family AF_ALG.Each session corresponds to one or more connections obtained from
that socket. The number depends on the number of inputs/outputs
of that particular type of operation. For most types there will
be a s ingle connection/file descriptor that is used for both input
and output. AEAD is one of the few that require two inputs.Each algorithm type will provide its own implementation that plugs
into af_alg. They're keyed using a string such as "skcipher" or
"hash".IOW this patch only contains the boring bits that is required
to hold everything together.Thakns to Miloslav Trmac for reviewing this and contributing
fixes and improvements.Signed-off-by: Herbert Xu
Acked-by: David S. Miller
Tested-by: Martin Willi
03 Jun, 2010
2 commits
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This fixes the broken autoloading of the corresponding twofish assembler
ciphers on x86 and x86_64 if they are available. The module name of the
generic implementation was in conflict with the alias in the assembler
modules. The generic twofish c implementation is renamed to
twofish_generic according to the other algorithms with assembler
implementations and an module alias is added for 'twofish'. You can now
load 'twofish' giving you the best implementation by priority,
'twofish-generic' to get the c implementation or 'twofish-asm' to get
the assembler version of cipher.Signed-off-by: Joachim Fritschi
Signed-off-by: Herbert Xu -
The PCOMP Kconfig entry current allows the following combination
which is illegal:ZLIB=y
PCOMP=y
ALGAPI=m
ALGAPI2=y
MANAGER=m
MANAGER2=mThis patch fixes this by adding PCOMP2 so that PCOMP can select
ALGAPI to propagate the setting to MANAGER2.Signed-off-by: Herbert Xu
07 Jan, 2010
1 commit
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This patch adds a parallel crypto template that takes a crypto
algorithm and converts it to process the crypto transforms in
parallel. For the moment only aead algorithms are supported.Signed-off-by: Steffen Klassert
Signed-off-by: Herbert Xu
02 Sep, 2009
1 commit
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This patch adds VMAC (a fast MAC) support into crypto framework.
Signed-off-by: Shane Wang
Signed-off-by: Joseph Cihula
Signed-off-by: Herbert Xu
06 Aug, 2009
1 commit
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GHASH is implemented as a shash algorithm. The actual implementation
is copied from gcm.c. This makes it possible to add
architecture/hardware accelerated GHASH implementation.Signed-off-by: Huang Ying
Signed-off-by: Herbert Xu
14 Jul, 2009
1 commit
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This patch removes the implementation of hash and digest now that
no algorithms use them anymore. The interface though will remain
until the users are converted across.Signed-off-by: Herbert Xu
04 Mar, 2009
2 commits
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Signed-off-by: Geert Uytterhoeven
Cc: James Morris
Signed-off-by: Herbert Xu -
The current "comp" crypto interface supports one-shot (de)compression only,
i.e. the whole data buffer to be (de)compressed must be passed at once, and
the whole (de)compressed data buffer will be received at once.
In several use-cases (e.g. compressed file systems that store files in big
compressed blocks), this workflow is not suitable.
Furthermore, the "comp" type doesn't provide for the configuration of
(de)compression parameters, and always allocates workspace memory for both
compression and decompression, which may waste memory.To solve this, add a "pcomp" partial (de)compression interface that provides
the following operations:
- crypto_compress_{init,update,final}() for compression,
- crypto_decompress_{init,update,final}() for decompression,
- crypto_{,de}compress_setup(), to configure (de)compression parameters
(incl. allocating workspace memory).The (de)compression methods take a struct comp_request, which was mimicked
after the z_stream object in zlib, and contains buffer pointer and length
pairs for input and output.The setup methods take an opaque parameter pointer and length pair. Parameters
are supposed to be encoded using netlink attributes, whose meanings depend on
the actual (name of the) (de)compression algorithm.Signed-off-by: Geert Uytterhoeven
Signed-off-by: Herbert Xu
19 Feb, 2009
1 commit
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Use dedicated workqueue for crypto subsystem
A dedicated workqueue named kcrypto_wq is created to be used by crypto
subsystem. The system shared keventd_wq is not suitable for
encryption/decryption, because of potential starvation problem.Signed-off-by: Huang Ying
Signed-off-by: Herbert Xu
25 Dec, 2008
1 commit
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The shash interface replaces the current synchronous hash interface.
It improves over hash in two ways. Firstly shash is reentrant,
meaning that the same tfm may be used by two threads simultaneously
as all hashing state is stored in a local descriptor.The other enhancement is that shash no longer takes scatter list
entries. This is because shash is specifically designed for
synchronous algorithms and as such scatter lists are unnecessary.All existing hash users will be converted to shash once the
algorithms have been completely converted.There is also a new finup function that combines update with final.
This will be extended to ahash once the algorithm conversion is
done.This is also the first time that an algorithm type has their own
registration function. Existing algorithm types will be converted
to this way in due course.Signed-off-by: Herbert Xu
10 Dec, 2008
1 commit
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If we have at least one algorithm built-in then it no longer makes
sense to have the testing framework, and hence cryptomgr to be a
module. It should be either on or off, i.e., built-in or disabled.This just happens to stop a potential runaway modprobe loop that
seems to trigger on at least one distro.With fixes from Evgeniy Polyakov.
Signed-off-by: Herbert Xu
29 Aug, 2008
4 commits
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This patch adds a random number generator interface as well as a
cryptographic pseudo-random number generator based on AES. It is
meant to be used in cases where a deterministic CPRNG is required.One of the first applications will be as an input in the IPsec IV
generation process.Signed-off-by: Neil Horman
Signed-off-by: Herbert Xu -
Add the ability to turn FIPS-compliant mode on or off at boot
In order to be FIPS compliant, several check may need to be preformed that may
be construed as unusefull in a non-compliant mode. This patch allows us to set
a kernel flag incating that we are running in a fips-compliant mode from boot
up. It also exports that mode information to user space via a sysctl
(/proc/sys/crypto/fips_enabled).Tested successfully by me.
Signed-off-by: Neil Horman
Signed-off-by: Herbert Xu -
This patch moves the default IV generators into their own modules
in order to break a dependency loop between cryptomgr, rng, and
blkcipher.Signed-off-by: Herbert Xu
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This patch moves the newly created alg_test infrastructure into
cryptomgr. This shall allow us to use it for testing at algorithm
registrations.Signed-off-by: Herbert Xu
15 Jul, 2008
1 commit
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This patch is clearly not ready yet for prime time.
Signed-off-by: Herbert Xu
10 Jul, 2008
4 commits
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This patch adds a cryptographic pseudo-random number generator
based on CTR(AES-128). It is meant to be used in cases where a
deterministic CPRNG is required.One of the first applications will be as an input in the IPsec IV
generation process.Signed-off-by: Neil Horman
Signed-off-by: Herbert Xu -
This patch adds asynchronous hash and digest support.
Signed-off-by: Loc Ho
Signed-off-by: Herbert Xu -
This patch adds support for the extended RIPEMD hash
algorithms RIPEMD-256 and RIPEMD-320.Signed-off-by: Adrian-Ken Rueegsegger
Signed-off-by: Herbert Xu -
This patch adds support for RIPEMD-128 and RIPEMD-160
hash algorithms.Signed-off-by: Adrian-Ken Rueegsegger
Signed-off-by: Herbert Xu
21 Apr, 2008
3 commits
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Signed-off-by: Sebastian Siewior
Signed-off-by: Herbert Xu -
Implement CTS wrapper for CBC mode required for support of AES
encryption support for Kerberos (rfc3962).Signed-off-by: Kevin Coffman
Signed-off-by: Herbert Xu -
Rename sha512 to sha512_generic and add a MODULE_ALIAS for sha512
so all sha512 implementations can be loaded automatically.Keep the broken tabs so git recognizes this as a rename.
Signed-off-by: Jan Glauber
Signed-off-by: Herbert Xu
23 Feb, 2008
1 commit
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For compatibility with dm-crypt initramfs setups it is useful to merge
chainiv/seqiv into the crypto_blkcipher module. Since they're required
by most algorithms anyway this is an acceptable trade-off.Signed-off-by: Herbert Xu
11 Jan, 2008
6 commits
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This patch adds Counter with CBC-MAC (CCM) support.
RFC 3610 and NIST Special Publication 800-38C were referenced.Signed-off-by: Joy Latten
Signed-off-by: Herbert Xu -
This generator generates an IV based on a sequence number by xoring it
with a salt. This algorithm is mainly useful for CTR and similar modes.This patch also sets it as the default IV generator for ctr.
Signed-off-by: Herbert Xu
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This generator generates an IV based on a sequence number by xoring it
with a salt and then encrypting it with the same key as used to encrypt
the plain text. This algorithm requires that the block size be equal
to the IV size. It is mainly useful for CBC.It has one noteworthy property that for IPsec the IV happens to lie
just before the plain text so the IV generation simply increases the
number of encrypted blocks by one. Therefore the cost of this generator
is entirely dependent on the speed of the underlying cipher.Signed-off-by: Herbert Xu
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The chain IV generator is the one we've been using in the IPsec stack.
It simply starts out with a random IV, then uses the last block of each
encrypted packet's cipher text as the IV for the next packet.It can only be used by synchronous ciphers since we have to make sure
that we don't start the encryption of the next packet until the last
one has completed.It does have the advantage of using very little CPU time since it doesn't
have to generate anything at all.Signed-off-by: Herbert Xu
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With the impending addition of the givcipher type, both blkcipher and
ablkcipher algorithms will use it to create givcipher objects. As such
it no longer makes sense to split the system between ablkcipher and
blkcipher. In particular, both ablkcipher.c and blkcipher.c would need
to use the givcipher type which has to reside in ablkcipher.c since it
shares much code with it.This patch merges the two Kconfig options as well as the modules into one.
Signed-off-by: Herbert Xu
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Add LZO compression algorithm support
Signed-off-by: Zoltan Sogor
Signed-off-by: Herbert Xu
