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* crypto: digest: Fix digesting over memory chunks > 4096 bytesUwe Kleine-König2017-07-101-0/+3
| | | | | | | | | | | | | | | | | | | There are two different cases that are handled in digest_file_window: a) the file to digest is memmappable (e.g. /dev/mem) b) it isn't (e.g. files in /) In both cases a file is digested in hunks of (up to) 4096 bytes. After each hunk in b) the buffer that is fed to digest_update() is then overwritten using read() to get the next hunk to digest. In case a) however it was forgotten to step forward in the buffer and instead the same data was handed to digest_update() again and again. So to fix that increase buffer by the number of bytes already digested for case a) which is characterized by flags == 0. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
* whole tree: remove trailing whitespacesDu Huanpeng2016-04-211-1/+1
| | | | | Signed-off-by: Du Huanpeng <u74147@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* crypto: add digest_alloc_by_algo()Sascha Hauer2016-01-261-1/+42
| | | | | | | | | | | In barebox the function digest_alloc() allocates a digest based on a string. When a subsystem already uses an integer value to identify a digest it makes no sense to create a string and pass it to digest_alloc(), where it is parsed again. This patch adds the possibility to get a digest by an enum. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* crypto: digest: mark signature argument as constMarc Kleine-Budde2015-05-261-5/+5
| | | | | Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* crypto: prepare to allow multiple digest driverJean-Christophe PLAGNIOL-VILLARD2015-03-271-12/+19
| | | | | | | | | | This will allow to have hw driver or asm optimised driver. Use a priority level to determine which one to use at runtime. The generic one will be 0. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* digest: allow algo to specify their length at runtimeJean-Christophe PLAGNIOL-VILLARD2015-03-271-2/+1
| | | | | | | | such as RSA as we load a DER key we will detect the key size at runtime and so the algo length. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* command: add generic digest commandJean-Christophe PLAGNIOL-VILLARD2015-03-201-5/+20
| | | | | | | That can be used for digest calculation and verify Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* digest: add digest callbackJean-Christophe PLAGNIOL-VILLARD2015-03-191-0/+18
| | | | | | | | | | | Combination of @init and @update and @final. This function effectively behaves as the entire chain of operations, @init, @update and @final issued in sequence. This is added for hardware which cannot do even the @finup, but can only do the whole transformation in one run. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* digest: add verify callbackJean-Christophe PLAGNIOL-VILLARD2015-03-191-1/+23
| | | | | | | | | | | | this will allow to compare a md with the original one When calling this do not call final For RSA_SIGN verification final does not exist only verify as final will be for signing Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* crypto: digest: digest_file_window/digest_file/digest_file_by_name drop key ↵Jean-Christophe PLAGNIOL-VILLARD2015-03-191-8/+2
| | | | | | | | | params expect the key to be set before calling Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* crypto: digest: digest_file_window: check every digest_xxx returnJean-Christophe PLAGNIOL-VILLARD2015-03-181-3/+7
| | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* crypto: digest: Fix coding styleSascha Hauer2015-03-131-4/+4
| | | | | | | | | | When declaring pointer data or a function that returns a pointer type, the preferred use of '*' is adjacent to the data name or function name and not adjacent to the type name. Fix the remaining occurences in crypto/ Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* crypto: digest: Make string arguments constSascha Hauer2015-03-131-9/+9
| | | | | | | Most string arguments for keys and filenames can be const. Change that. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* command: add hmac sum supportfor md5, sha1, sha224, sha256, sha384, sha512Jean-Christophe PLAGNIOL-VILLARD2015-03-131-2/+8
| | | | | | | | | | | | | | | pass the key via -h param barebox@barebox sandbox:/ sha256sum -h test /dev/fd0 c297473e9bb221c5dc51d47ad75c76095f1bdc4ca9dff1d5931c2e22bf11a0de /dev/fd0 0x00000000 ... 0xffffffffffffffff use the same idea as openssl command $ openssl dgst -sha256 -hmac "test" TODO HMAC-SHA256(TODO)= c297473e9bb221c5dc51d47ad75c76095f1bdc4ca9dff1d5931c2e22bf11a0de Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* digest: make it multi-instanceJean-Christophe PLAGNIOL-VILLARD2015-03-121-10/+53
| | | | | | | | | | Now you need to call digest_alloc and when you finish to use it digest_free. We need this for upcomming aes encryption support and secure boot as we will need multiple instance of the same digest. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* digest: introduce digest_{init/update/final/length}Jean-Christophe PLAGNIOL-VILLARD2015-03-121-3/+3
| | | | | | | | This will allow to move from a one at a time digest to a multi-instance with too much impact on the code using it Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* digest: move digest.c to cryptoJean-Christophe PLAGNIOL-VILLARD2015-03-121-0/+174
with not the rest of the implementation Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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