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linux/crypto/cmac.c

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-27 08:55:01 +02:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: remove cipher routines from public crypto API The cipher routines in the crypto API are mostly intended for templates implementing skcipher modes generically in software, and shouldn't be used outside of the crypto subsystem. So move the prototypes and all related definitions to a new header file under include/crypto/internal. Also, let's use the new module namespace feature to move the symbol exports into a new namespace CRYPTO_INTERNAL. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-12-11 13:27:15 +01:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - remove unnecessary alignment logic The cmac template is setting its alignmask to that of its underlying 'cipher'. Yet, it doesn't care itself about how its inputs and outputs are aligned, which is ostensibly the point of the alignmask. Instead, cmac actually just uses its alignmask itself to runtime-align certain fields in its tfm and desc contexts appropriately for its underlying cipher. That is almost entirely pointless too, though, since cmac is already using the cipher API functions that handle alignment themselves, and few ciphers set a nonzero alignmask anyway. Also, even without runtime alignment, an alignment of at least 4 bytes can be guaranteed. Thus, at best this code is optimizing for the rare case of ciphers that set an alignmask >= 7, at the cost of hurting the common cases. Therefore, this patch removes the manual alignment code from cmac and makes it stop setting an alignmask. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-10-18 22:53:33 -07:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - remove unnecessary alignment logic The cmac template is setting its alignmask to that of its underlying 'cipher'. Yet, it doesn't care itself about how its inputs and outputs are aligned, which is ostensibly the point of the alignmask. Instead, cmac actually just uses its alignmask itself to runtime-align certain fields in its tfm and desc contexts appropriately for its underlying cipher. That is almost entirely pointless too, though, since cmac is already using the cipher API functions that handle alignment themselves, and few ciphers set a nonzero alignmask anyway. Also, even without runtime alignment, an alignment of at least 4 bytes can be guaranteed. Thus, at best this code is optimizing for the rare case of ciphers that set an alignmask >= 7, at the cost of hurting the common cases. Therefore, this patch removes the manual alignment code from cmac and makes it stop setting an alignmask. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-10-18 22:53:33 -07:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - remove unnecessary alignment logic The cmac template is setting its alignmask to that of its underlying 'cipher'. Yet, it doesn't care itself about how its inputs and outputs are aligned, which is ostensibly the point of the alignmask. Instead, cmac actually just uses its alignmask itself to runtime-align certain fields in its tfm and desc contexts appropriately for its underlying cipher. That is almost entirely pointless too, though, since cmac is already using the cipher API functions that handle alignment themselves, and few ciphers set a nonzero alignmask anyway. Also, even without runtime alignment, an alignment of at least 4 bytes can be guaranteed. Thus, at best this code is optimizing for the rare case of ciphers that set an alignmask >= 7, at the cost of hurting the common cases. Therefore, this patch removes the manual alignment code from cmac and makes it stop setting an alignmask. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-10-18 22:53:33 -07:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - remove unnecessary alignment logic The cmac template is setting its alignmask to that of its underlying 'cipher'. Yet, it doesn't care itself about how its inputs and outputs are aligned, which is ostensibly the point of the alignmask. Instead, cmac actually just uses its alignmask itself to runtime-align certain fields in its tfm and desc contexts appropriately for its underlying cipher. That is almost entirely pointless too, though, since cmac is already using the cipher API functions that handle alignment themselves, and few ciphers set a nonzero alignmask anyway. Also, even without runtime alignment, an alignment of at least 4 bytes can be guaranteed. Thus, at best this code is optimizing for the rare case of ciphers that set an alignmask >= 7, at the cost of hurting the common cases. Therefore, this patch removes the manual alignment code from cmac and makes it stop setting an alignmask. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-10-18 22:53:33 -07:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - remove unnecessary alignment logic The cmac template is setting its alignmask to that of its underlying 'cipher'. Yet, it doesn't care itself about how its inputs and outputs are aligned, which is ostensibly the point of the alignmask. Instead, cmac actually just uses its alignmask itself to runtime-align certain fields in its tfm and desc contexts appropriately for its underlying cipher. That is almost entirely pointless too, though, since cmac is already using the cipher API functions that handle alignment themselves, and few ciphers set a nonzero alignmask anyway. Also, even without runtime alignment, an alignment of at least 4 bytes can be guaranteed. Thus, at best this code is optimizing for the rare case of ciphers that set an alignmask >= 7, at the cost of hurting the common cases. Therefore, this patch removes the manual alignment code from cmac and makes it stop setting an alignmask. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-10-18 22:53:33 -07:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - remove unnecessary alignment logic The cmac template is setting its alignmask to that of its underlying 'cipher'. Yet, it doesn't care itself about how its inputs and outputs are aligned, which is ostensibly the point of the alignmask. Instead, cmac actually just uses its alignmask itself to runtime-align certain fields in its tfm and desc contexts appropriately for its underlying cipher. That is almost entirely pointless too, though, since cmac is already using the cipher API functions that handle alignment themselves, and few ciphers set a nonzero alignmask anyway. Also, even without runtime alignment, an alignment of at least 4 bytes can be guaranteed. Thus, at best this code is optimizing for the rare case of ciphers that set an alignmask >= 7, at the cost of hurting the common cases. Therefore, this patch removes the manual alignment code from cmac and makes it stop setting an alignmask. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-10-18 22:53:33 -07:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - remove unnecessary alignment logic The cmac template is setting its alignmask to that of its underlying 'cipher'. Yet, it doesn't care itself about how its inputs and outputs are aligned, which is ostensibly the point of the alignmask. Instead, cmac actually just uses its alignmask itself to runtime-align certain fields in its tfm and desc contexts appropriately for its underlying cipher. That is almost entirely pointless too, though, since cmac is already using the cipher API functions that handle alignment themselves, and few ciphers set a nonzero alignmask anyway. Also, even without runtime alignment, an alignment of at least 4 bytes can be guaranteed. Thus, at best this code is optimizing for the rare case of ciphers that set an alignmask >= 7, at the cost of hurting the common cases. Therefore, this patch removes the manual alignment code from cmac and makes it stop setting an alignmask. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-10-18 22:53:33 -07:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - Use modern init_tfm/exit_tfm Use the modern init_tfm/exit_tfm interface instead of the obsolete cra_init/cra_exit interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-05-19 16:28:32 +08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - Use modern init_tfm/exit_tfm Use the modern init_tfm/exit_tfm interface instead of the obsolete cra_init/cra_exit interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-05-19 16:28:32 +08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - Use modern init_tfm/exit_tfm Use the modern init_tfm/exit_tfm interface instead of the obsolete cra_init/cra_exit interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-05-19 16:28:32 +08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - Add support for cloning Allow cmac to be cloned. The underlying cipher needs to support cloning by not having a cra_init function (all implementations of aes that do not require a fallback can be cloned). Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-05-19 16:28:37 +08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - Use modern init_tfm/exit_tfm Use the modern init_tfm/exit_tfm interface instead of the obsolete cra_init/cra_exit interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-05-19 16:28:32 +08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - Use modern init_tfm/exit_tfm Use the modern init_tfm/exit_tfm interface instead of the obsolete cra_init/cra_exit interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-05-19 16:28:32 +08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - use crypto_grab_cipher() and simplify error paths Make the cmac template use the new function crypto_grab_cipher() to initialize its cipher spawn. This is needed to make all spawns be initialized in a consistent way. This required making cmac_create() allocate the instance directly rather than use shash_alloc_instance(). Also simplify the error handling by taking advantage of crypto_drop_*() now accepting (as a no-op) spawns that haven't been initialized yet, and by taking advantage of crypto_grab_*() now handling ERR_PTR() names. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-02 19:59:02 -08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: algapi - use common mechanism for inheriting flags The flag CRYPTO_ALG_ASYNC is "inherited" in the sense that when a template is instantiated, the template will have CRYPTO_ALG_ASYNC set if any of the algorithms it uses has CRYPTO_ALG_ASYNC set. We'd like to add a second flag (CRYPTO_ALG_ALLOCATES_MEMORY) that gets "inherited" in the same way. This is difficult because the handling of CRYPTO_ALG_ASYNC is hardcoded everywhere. Address this by: - Add CRYPTO_ALG_INHERITED_FLAGS, which contains the set of flags that have these inheritance semantics. - Add crypto_algt_inherited_mask(), for use by template ->create() methods. It returns any of these flags that the user asked to be unset and thus must be passed in the 'mask' to crypto_grab_*(). - Also modify crypto_check_attr_type() to handle computing the 'mask' so that most templates can just use this. - Make crypto_grab_*() propagate these flags to the template instance being created so that templates don't have to do this themselves. Make crypto/simd.c propagate these flags too, since it "wraps" another algorithm, similar to a template. Based on a patch by Mikulas Patocka <mpatocka@redhat.com> (https://lore.kernel.org/r/alpine.LRH.2.02.2006301414580.30526@file01.intranet.prod.int.rdu2.redhat.com). Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-09 23:20:38 -07:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: algapi - use common mechanism for inheriting flags The flag CRYPTO_ALG_ASYNC is "inherited" in the sense that when a template is instantiated, the template will have CRYPTO_ALG_ASYNC set if any of the algorithms it uses has CRYPTO_ALG_ASYNC set. We'd like to add a second flag (CRYPTO_ALG_ALLOCATES_MEMORY) that gets "inherited" in the same way. This is difficult because the handling of CRYPTO_ALG_ASYNC is hardcoded everywhere. Address this by: - Add CRYPTO_ALG_INHERITED_FLAGS, which contains the set of flags that have these inheritance semantics. - Add crypto_algt_inherited_mask(), for use by template ->create() methods. It returns any of these flags that the user asked to be unset and thus must be passed in the 'mask' to crypto_grab_*(). - Also modify crypto_check_attr_type() to handle computing the 'mask' so that most templates can just use this. - Make crypto_grab_*() propagate these flags to the template instance being created so that templates don't have to do this themselves. Make crypto/simd.c propagate these flags too, since it "wraps" another algorithm, similar to a template. Based on a patch by Mikulas Patocka <mpatocka@redhat.com> (https://lore.kernel.org/r/alpine.LRH.2.02.2006301414580.30526@file01.intranet.prod.int.rdu2.redhat.com). Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-09 23:20:38 -07:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - use crypto_grab_cipher() and simplify error paths Make the cmac template use the new function crypto_grab_cipher() to initialize its cipher spawn. This is needed to make all spawns be initialized in a consistent way. This required making cmac_create() allocate the instance directly rather than use shash_alloc_instance(). Also simplify the error handling by taking advantage of crypto_drop_*() now accepting (as a no-op) spawns that haven't been initialized yet, and by taking advantage of crypto_grab_*() now handling ERR_PTR() names. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-02 19:59:02 -08:00
crypto: algapi - use common mechanism for inheriting flags The flag CRYPTO_ALG_ASYNC is "inherited" in the sense that when a template is instantiated, the template will have CRYPTO_ALG_ASYNC set if any of the algorithms it uses has CRYPTO_ALG_ASYNC set. We'd like to add a second flag (CRYPTO_ALG_ALLOCATES_MEMORY) that gets "inherited" in the same way. This is difficult because the handling of CRYPTO_ALG_ASYNC is hardcoded everywhere. Address this by: - Add CRYPTO_ALG_INHERITED_FLAGS, which contains the set of flags that have these inheritance semantics. - Add crypto_algt_inherited_mask(), for use by template ->create() methods. It returns any of these flags that the user asked to be unset and thus must be passed in the 'mask' to crypto_grab_*(). - Also modify crypto_check_attr_type() to handle computing the 'mask' so that most templates can just use this. - Make crypto_grab_*() propagate these flags to the template instance being created so that templates don't have to do this themselves. Make crypto/simd.c propagate these flags too, since it "wraps" another algorithm, similar to a template. Based on a patch by Mikulas Patocka <mpatocka@redhat.com> (https://lore.kernel.org/r/alpine.LRH.2.02.2006301414580.30526@file01.intranet.prod.int.rdu2.redhat.com). Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-07-09 23:20:38 -07:00
crypto: cmac - use crypto_grab_cipher() and simplify error paths Make the cmac template use the new function crypto_grab_cipher() to initialize its cipher spawn. This is needed to make all spawns be initialized in a consistent way. This required making cmac_create() allocate the instance directly rather than use shash_alloc_instance(). Also simplify the error handling by taking advantage of crypto_drop_*() now accepting (as a no-op) spawns that haven't been initialized yet, and by taking advantage of crypto_grab_*() now handling ERR_PTR() names. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-02 19:59:02 -08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - return -EINVAL if block size is unsupported cmac_create() previously returned 0 if a cipher with a block size other than 8 or 16 bytes was specified. It should return -EINVAL instead. Granted, this doesn't actually change any behavior because cryptomgr currently ignores any return value other than -EAGAIN from template ->create() functions. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-10-10 10:15:14 -07:00
crypto: cmac - use crypto_grab_cipher() and simplify error paths Make the cmac template use the new function crypto_grab_cipher() to initialize its cipher spawn. This is needed to make all spawns be initialized in a consistent way. This required making cmac_create() allocate the instance directly rather than use shash_alloc_instance(). Also simplify the error handling by taking advantage of crypto_drop_*() now accepting (as a no-op) spawns that haven't been initialized yet, and by taking advantage of crypto_grab_*() now handling ERR_PTR() names. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-02 19:59:02 -08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - use crypto_grab_cipher() and simplify error paths Make the cmac template use the new function crypto_grab_cipher() to initialize its cipher spawn. This is needed to make all spawns be initialized in a consistent way. This required making cmac_create() allocate the instance directly rather than use shash_alloc_instance(). Also simplify the error handling by taking advantage of crypto_drop_*() now accepting (as a no-op) spawns that haven't been initialized yet, and by taking advantage of crypto_grab_*() now handling ERR_PTR() names. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-02 19:59:02 -08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - use crypto_grab_cipher() and simplify error paths Make the cmac template use the new function crypto_grab_cipher() to initialize its cipher spawn. This is needed to make all spawns be initialized in a consistent way. This required making cmac_create() allocate the instance directly rather than use shash_alloc_instance(). Also simplify the error handling by taking advantage of crypto_drop_*() now accepting (as a no-op) spawns that haven't been initialized yet, and by taking advantage of crypto_grab_*() now handling ERR_PTR() names. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-02 19:59:02 -08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - remove unnecessary alignment logic The cmac template is setting its alignmask to that of its underlying 'cipher'. Yet, it doesn't care itself about how its inputs and outputs are aligned, which is ostensibly the point of the alignmask. Instead, cmac actually just uses its alignmask itself to runtime-align certain fields in its tfm and desc contexts appropriately for its underlying cipher. That is almost entirely pointless too, though, since cmac is already using the cipher API functions that handle alignment themselves, and few ciphers set a nonzero alignmask anyway. Also, even without runtime alignment, an alignment of at least 4 bytes can be guaranteed. Thus, at best this code is optimizing for the rare case of ciphers that set an alignmask >= 7, at the cost of hurting the common cases. Therefore, this patch removes the manual alignment code from cmac and makes it stop setting an alignmask. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-10-18 22:53:33 -07:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - remove unnecessary alignment logic The cmac template is setting its alignmask to that of its underlying 'cipher'. Yet, it doesn't care itself about how its inputs and outputs are aligned, which is ostensibly the point of the alignmask. Instead, cmac actually just uses its alignmask itself to runtime-align certain fields in its tfm and desc contexts appropriately for its underlying cipher. That is almost entirely pointless too, though, since cmac is already using the cipher API functions that handle alignment themselves, and few ciphers set a nonzero alignmask anyway. Also, even without runtime alignment, an alignment of at least 4 bytes can be guaranteed. Thus, at best this code is optimizing for the rare case of ciphers that set an alignmask >= 7, at the cost of hurting the common cases. Therefore, this patch removes the manual alignment code from cmac and makes it stop setting an alignmask. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-10-18 22:53:33 -07:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - Use modern init_tfm/exit_tfm Use the modern init_tfm/exit_tfm interface instead of the obsolete cra_init/cra_exit interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-05-19 16:28:32 +08:00
crypto: cmac - Add support for cloning Allow cmac to be cloned. The underlying cipher needs to support cloning by not having a cra_init function (all implementations of aes that do not require a fallback can be cloned). Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-05-19 16:28:37 +08:00
crypto: cmac - Use modern init_tfm/exit_tfm Use the modern init_tfm/exit_tfm interface instead of the obsolete cra_init/cra_exit interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2023-05-19 16:28:32 +08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: shash - convert shash_free_instance() to new style Convert shash_free_instance() and its users to the new way of freeing instances, where a ->free() method is installed to the instance struct itself. This replaces the weakly-typed method crypto_template::free(). This will allow removing support for the old way of freeing instances. Also give shash_free_instance() a more descriptive name to reflect that it's only for instances with a single spawn, not for any instance. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-02 20:04:38 -08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: cmac - use crypto_grab_cipher() and simplify error paths Make the cmac template use the new function crypto_grab_cipher() to initialize its cipher spawn. This is needed to make all spawns be initialized in a consistent way. This required making cmac_create() allocate the instance directly rather than use shash_alloc_instance(). Also simplify the error handling by taking advantage of crypto_drop_*() now accepting (as a no-op) spawns that haven't been initialized yet, and by taking advantage of crypto_grab_*() now handling ERR_PTR() names. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-02 19:59:02 -08:00
crypto: shash - convert shash_free_instance() to new style Convert shash_free_instance() and its users to the new way of freeing instances, where a ->free() method is installed to the instance struct itself. This replaces the weakly-typed method crypto_template::free(). This will allow removing support for the old way of freeing instances. Also give shash_free_instance() a more descriptive name to reflect that it's only for instances with a single spawn, not for any instance. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-01-02 20:04:38 -08:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: run initcalls for generic implementations earlier Use subsys_initcall for registration of all templates and generic algorithm implementations, rather than module_init. Then change cryptomgr to use arch_initcall, to place it before the subsys_initcalls. This is needed so that when both a generic and optimized implementation of an algorithm are built into the kernel (not loadable modules), the generic implementation is registered before the optimized one. Otherwise, the self-tests for the optimized implementation are unable to allocate the generic implementation for the new comparison fuzz tests. Note that on arm, a side effect of this change is that self-tests for generic implementations may run before the unaligned access handler has been installed. So, unaligned accesses will crash the kernel. This is arguably a good thing as it makes it easier to detect that type of bug. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-04-11 21:57:42 -07:00
crypto: add CMAC support to CryptoAPI Patch adds support for NIST recommended block cipher mode CMAC to CryptoAPI. This work is based on Tom St Denis' earlier patch, http://marc.info/?l=linux-crypto-vger&m=135877306305466&w=2 Cc: Tom St Denis <tstdenis@elliptictech.com> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-08 10:48:44 +03:00
crypto: include crypto- module prefix in template This adds the module loading prefix "crypto-" to the template lookup as well. For example, attempting to load 'vfat(blowfish)' via AF_ALG now correctly includes the "crypto-" prefix at every level, correctly rejecting "vfat": net-pf-38 algif-hash crypto-vfat(blowfish) crypto-vfat(blowfish)-all crypto-vfat Reported-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-11-24 16:32:38 -08:00
crypto: remove cipher routines from public crypto API The cipher routines in the crypto API are mostly intended for templates implementing skcipher modes generically in software, and shouldn't be used outside of the crypto subsystem. So move the prototypes and all related definitions to a new header file under include/crypto/internal. Also, let's use the new module namespace feature to move the symbol exports into a new namespace CRYPTO_INTERNAL. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-12-11 13:27:15 +01:00