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linux-next/crypto
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Denis Kenzior 64ae16dfee KEYS: asym_tpm: Add support for the sign operation [ver #2] 
The sign operation can operate in a non-hashed mode by running the RSA
sign operation directly on the input.  This assumes that the input is
less than key_size_in_bytes - 11.  Since the TPM performs its own PKCS1
padding, it isn't possible to support 'raw' mode, only 'pkcs1'.

Alternatively, a hashed version is also possible.  In this variant the
input is hashed (by userspace) via the selected hash function first.
Then this implementation takes care of converting the hash to ASN.1
format and the sign operation is performed on the result.  This is
similar to the implementation inside crypto/rsa-pkcs1pad.c.

ASN1 templates were copied from crypto/rsa-pkcs1pad.c.  There seems to
be no easy way to expose that functionality, but likely the templates
should be shared somehow.

The sign operation is implemented via TPM_Sign operation on the TPM.
It is assumed that the TPM wrapped key provided uses
TPM_SS_RSASSAPKCS1v15_DER signature scheme.  This allows the TPM_Sign
operation to work on data up to key_len_in_bytes - 11 bytes long.

In theory, we could also use TPM_Unbind instead of TPM_Sign, but we would
have to manually pkcs1 pad the digest first.

Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Marcel Holtmann <marcel@holtmann.org>
Reviewed-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: James Morris <james.morris@microsoft.com>
2018-10-26 09:30:47 +01:00
..
asymmetric_keys KEYS: asym_tpm: Add support for the sign operation [ver #2] 2018-10-26 09:30:47 +01:00
async_tx async_pq: Remove VLA usage 2018-06-18 20:17:38 +05:30
842.c crypto: acomp - add support for 842 via scomp 2016-10-25 11:08:33 +08:00
ablkcipher.c crypto: ablkcipher - fix crash flushing dcache in error path 2018-08-03 18:06:04 +08:00
acompress.c crypto: acomp - allow registration of multiple acomps 2017-04-21 20:30:50 +08:00
aead.c crypto: aead - prevent using AEADs without setting key 2018-01-12 23:03:39 +11:00
aegis128.c crypto: aead - remove useless setting of type flags 2018-07-09 00:30:26 +08:00
aegis128l.c crypto: aead - remove useless setting of type flags 2018-07-09 00:30:26 +08:00
aegis256.c crypto: aead - remove useless setting of type flags 2018-07-09 00:30:26 +08:00
aegis.h crypto: aegis/generic - fix for big endian systems 2018-10-08 13:44:53 +08:00
aes_generic.c crypto: aes-generic - drop alignment requirement 2017-02-11 17:50:43 +08:00
aes_ti.c crypto: aes_ti - fix comment for MixColumns step 2017-06-19 14:11:53 +08:00
af_alg.c Revert "net: simplify sock_poll_wait" 2018-10-23 10:57:06 -07:00
ahash.c crypto: user - Implement a generic crypto statistics 2018-09-28 12:46:25 +08:00
akcipher.c crypto: Replaced gcc specific attributes with macros from compiler.h 2017-01-13 00:24:39 +08:00
algapi.c crypto: user - Implement a generic crypto statistics 2018-09-28 12:46:25 +08:00
algboss.c crypto: api - Introduce notifier for new crypto algorithms 2018-09-04 11:37:04 +08:00
algif_aead.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
algif_hash.c crypto: hash - Remove VLA usage 2018-09-04 11:35:03 +08:00
algif_rng.c net: remove sock_no_poll 2018-05-26 09:16:44 +02:00
algif_skcipher.c Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
ansi_cprng.c crypto: ansi_cprng - Convert to new rng interface 2015-04-22 09:30:18 +08:00
anubis.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
api.c evm: Don't deadlock if a crypto algorithm is unavailable 2018-07-18 07:27:22 -04:00
arc4.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
authenc.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
authencesn.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
blkcipher.c crypto: blkcipher - fix crash flushing dcache in error path 2018-08-03 18:06:04 +08:00
blowfish_common.c
blowfish_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
camellia_generic.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
cast5_generic.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
cast6_generic.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
cast_common.c crypto: make tables used from assembler __visible 2013-08-14 20:42:03 +10:00
cbc.c crypto: cbc - Propagate NEED_FALLBACK bit 2017-03-09 18:34:39 +08:00
ccm.c crypto: ccm - Remove VLA usage 2018-09-04 11:35:03 +08:00
cfb.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
chacha20_generic.c crypto: chacha20 - Fix chacha20_block() keystream alignment (again) 2018-09-21 13:24:50 +08:00
chacha20poly1305.c crypto: chacha20poly1305 - validate the digest size 2017-12-22 19:02:33 +11:00
cipher.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
cmac.c crypto: algapi - make crypto_xor() and crypto_inc() alignment agnostic 2017-02-11 17:52:28 +08:00
compress.c crypto: api - Remove no-op exit_ops code 2016-10-21 11:03:42 +08:00
crc32_generic.c crypto: crc32-generic - remove __crc32_le() 2018-05-27 00:12:09 +08:00
crc32c_generic.c crypto: crc32c-generic - remove cra_alignmask 2018-05-27 00:12:08 +08:00
crct10dif_common.c crypto: crct10dif - Add fallback for broken initrds 2013-09-12 15:31:34 +10:00
crct10dif_generic.c crypto: squash lines for simple wrapper functions 2016-09-13 20:27:26 +08:00
cryptd.c crypto: cryptd - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
crypto_engine.c crypto: engine - Permit to enqueue all async requests 2018-02-15 23:26:50 +08:00
crypto_null.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
crypto_user_base.c crypto: user - Implement a generic crypto statistics 2018-09-28 12:46:25 +08:00
crypto_user_stat.c crypto: user - Implement a generic crypto statistics 2018-09-28 12:46:25 +08:00
crypto_wq.c crypto: crypto_wq - Fix late crypto work queue initialization 2014-03-21 21:54:28 +08:00
ctr.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
cts.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
deflate.c crypto: scomp - add support for deflate rfc1950 (zlib) 2017-04-24 18:11:08 +08:00
des_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
dh_helper.c crypto: dh - make crypto_dh_encode_key() make robust 2018-08-03 18:06:06 +08:00
dh.c crypto: dh - fix memory leak 2018-07-20 13:51:21 +08:00
drbg.c crypto: drbg - in-place cipher operation for CTR 2018-08-03 18:05:48 +08:00
ecb.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
ecc_curve_defs.h crypto: ecdh - fix typo of P-192 b value 2018-07-20 13:51:22 +08:00
ecc.c crypto: ecdh - add public key verification test 2018-07-09 00:26:19 +08:00
ecc.h crypto: ecc - Actually remove stack VLA usage 2018-04-21 00:58:29 +08:00
ecdh_helper.c crypto: ecdh - return unsigned value for crypto_ecdh_key_len() 2017-10-12 22:55:00 +08:00
ecdh.c crypto: ecc - Actually remove stack VLA usage 2018-04-21 00:58:29 +08:00
echainiv.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
fcrypt.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
fips.c crypto: fips - Move fips_enabled sysctl into fips.c 2015-04-23 14:18:09 +08:00
gcm.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
gf128mul.c crypto: gf128mul - remove incorrect comment 2017-12-22 19:52:40 +11:00
ghash-generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
hash_info.c keys, trusted: select hash algorithm for TPM2 chips 2015-12-20 15:27:12 +02:00
hmac.c crypto: hmac - require that the underlying hash algorithm is unkeyed 2017-11-29 13:39:15 +11:00
internal.h crypto: api - Introduce notifier for new crypto algorithms 2018-09-04 11:37:04 +08:00
jitterentropy-kcapi.c crypto: jitterentropy - drop duplicate header module.h 2016-11-17 23:34:52 +08:00
jitterentropy.c crypto: jitterentropy - Delete unnecessary checks before the function call "kzfree" 2015-06-25 23:18:33 +08:00
Kconfig crypto: x86/aes-ni - remove special handling of AES in PCBC mode 2018-10-05 10:16:56 +08:00
keywrap.c crypto: keywrap - Add missing ULL suffixes for 64-bit constants 2017-11-29 17:33:26 +11:00
khazad.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
kpp.c crypto: Replaced gcc specific attributes with macros from compiler.h 2017-01-13 00:24:39 +08:00
lrw.c crypto: lrw - fix rebase error after out of bounds fix 2018-10-05 10:22:48 +08:00
lz4.c crypto: lz4 - fixed decompress function to return error code 2017-04-10 19:17:27 +08:00
lz4hc.c crypto: lz4 - fixed decompress function to return error code 2017-04-10 19:17:27 +08:00
lzo.c treewide: use kv[mz]alloc* rather than opencoded variants 2017-05-08 17:15:13 -07:00
Makefile crypto: ofb - add output feedback mode 2018-09-28 12:46:26 +08:00
md4.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
md5.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
memneq.c crypto: memneq - fix for archs without efficient unaligned access 2013-12-09 20:09:12 +08:00
michael_mic.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
morus640.c crypto: morus/generic - fix for big endian systems 2018-10-08 13:44:53 +08:00
morus1280.c crypto: morus/generic - fix for big endian systems 2018-10-08 13:44:53 +08:00
ofb.c crypto: ofb - add output feedback mode 2018-09-28 12:46:26 +08:00
pcbc.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
pcrypt.c crypto: pcrypt - fix freeing pcrypt instances 2017-12-22 19:02:47 +11:00
poly1305_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
proc.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
ripemd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rmd128.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
rmd160.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
rmd256.c crypto: rmd256 - use swap macro in rmd256_transform 2018-07-27 19:28:36 +08:00
rmd320.c crypto: rmd320 - use swap macro in rmd320_transform 2018-07-27 19:28:36 +08:00
rng.c crypto: user - Implement a generic crypto statistics 2018-09-28 12:46:25 +08:00
rsa_helper.c kbuild: rename *-asn1.[ch] to *.asn1.[ch] 2018-04-07 19:04:02 +09:00
rsa-pkcs1pad.c crypto: rsa-pkcs1pad: Allow hash to be optional [ver #2] 2018-10-26 09:30:46 +01:00
rsa.c crypto: rsa - Remove unneeded error assignment 2018-04-21 00:58:37 +08:00
rsaprivkey.asn1 crypto: rsa - Store rest of the private key components 2016-07-05 23:05:26 +08:00
rsapubkey.asn1 crypto: akcipher - Changes to asymmetric key API 2015-10-14 22:23:16 +08:00
salsa20_generic.c crypto: salsa20 - Revert "crypto: salsa20 - export generic helpers" 2018-05-31 00:13:57 +08:00
scatterwalk.c crypto: scatterwalk - remove 'chain' argument from scatterwalk_crypto_chain() 2018-08-03 18:06:03 +08:00
scompress.c crypto: scompress - use sgl_alloc() and sgl_free() 2018-01-06 09:18:00 -07:00
seed.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
seqiv.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
serpent_generic.c crypto: serpent - improve __serpent_setkey with UBSAN 2017-08-09 20:17:54 +08:00
sha1_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
sha3_generic.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux 2018-08-03 17:55:12 +08:00
sha256_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
sha512_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
shash.c crypto: shash - Remove VLA usage in unaligned hashing 2018-09-04 11:37:03 +08:00
simd.c crypto: simd - allow registering multiple algorithms at once 2018-03-03 00:03:17 +08:00
skcipher.c crypto: skcipher - Introduce crypto_sync_skcipher 2018-09-28 12:46:06 +08:00
sm3_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
sm4_generic.c crypto: sm4 - export encrypt/decrypt routines to other drivers 2018-05-05 14:52:51 +08:00
tcrypt.c crypto: tcrypt - add OFB functional tests 2018-09-28 12:46:26 +08:00
tcrypt.h crypto: testmgr - update sm4 test vectors 2018-09-28 12:46:26 +08:00
tea.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
testmgr.c crypto: testmgr - fix sizeof() on COMP_BUF_SIZE 2018-10-12 14:20:45 +08:00
testmgr.h crypto: testmgr - update sm4 test vectors 2018-09-28 12:46:26 +08:00
tgr192.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
twofish_common.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
twofish_generic.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
vmac.c crypto: vmac - remove insecure version with hardcoded nonce 2018-07-01 21:00:44 +08:00
wp512.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
xcbc.c crypto: xcbc - Remove VLA usage 2018-09-04 11:35:03 +08:00
xor.c kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK 2017-11-15 18:21:04 -08:00
xts.c crypto: xts - Drop use of auxiliary buffer 2018-09-21 13:24:50 +08:00
zstd.c crypto: zstd - Add zstd support 2018-04-21 00:58:30 +08:00