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path: root/drivers/crypto/ccp/ccp-crypto-aes-xts.c (follow)
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2018-09-28crypto: ccp - Remove VLA usage of skcipherKees Cook1-6/+7
In the quest to remove all stack VLA usage from the kernel[1], this replaces struct crypto_skcipher and SKCIPHER_REQUEST_ON_STACK() usage with struct crypto_sync_skcipher and SYNC_SKCIPHER_REQUEST_ON_STACK(), which uses a fixed stack size. [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Gary Hook <gary.hook@amd.com> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-08-04crypto: ccp - Add XTS-AES-256 support for CCP version 5Gary R Hook1-4/+22
Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-08-04crypto: ccp - Rework the unit-size check for XTS-AESGary R Hook1-37/+20
The CCP supports a limited set of unit-size values. Change the check for this parameter such that acceptable values match the enumeration. Then clarify the conditions under which we must use the fallback implementation. Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-08-04crypto: ccp - Add a call to xts_check_key()Gary R Hook1-1/+8
Vet the key using the available standard function Signed-off-by: Gary R Hook <gary.hook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-08-04crypto: ccp - Fix XTS-AES-128 support on v5 CCPsGary R Hook1-1/+3
Version 5 CCPs have some new requirements for XTS-AES: the type field must be specified, and the key requires 512 bits, with each part occupying 256 bits and padded with zeroes. cc: <stable@vger.kernel.org> # 4.9.x+ Signed-off-by: Gary R Hook <ghook@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-01crypto: ccp - Use skcipher for fallbackHerbert Xu1-23/+20
This patch replaces use of the obsolete ablkcipher with skcipher. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-05-25crypto: ccp - Fix AES XTS error for request sizes above 4096Tom Lendacky1-5/+12
The ccp-crypto module for AES XTS support has a bug that can allow requests greater than 4096 bytes in size to be passed to the CCP hardware. The CCP hardware does not support request sizes larger than 4096, resulting in incorrect output. The request should actually be handled by the fallback mechanism instantiated by the ccp-crypto module. Add a check to insure the request size is less than or equal to the maximum supported size and use the fallback mechanism if it is not. Cc: <stable@vger.kernel.org> # 3.14.x- Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2015-02-27crypto: ccp - Updates for checkpatch warnings/errorsTom Lendacky1-3/+1
Changes to address warnings and errors reported by the checkpatch script. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2014-05-22crypto: ccp - tfm->__crt_alg->cra_name directlyMarek Vasut1-2/+2
Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-12-20crypto: ccp - Remove user triggerable pr_err callsTom Lendacky1-9/+3
Remove the pr_err calls that are issued during parameter checking in some AES operations. This will eliminate the possibility of filling up syslog through these paths. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-12-05crypto: ccp - CCP XTS-AES crypto API supportTom Lendacky1-0/+285
These routines provide crypto API support for the XTS-AES mode of AES on the AMD CCP. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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