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| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2015-03-11 17:53:09 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-03-13 08:32:28 +0100 |
| commit | 102d59f91fdd327c68c1b7a8c43f3f4685422f52 (patch) | |
| tree | c000562ea082fd45641872c6b3e016ad3a4852e0 /commands | |
| parent | 2f3c3f512b2ff5023a4177e167eb6b55055fe883 (diff) | |
| download | barebox-102d59f91fdd327c68c1b7a8c43f3f4685422f52.tar.gz barebox-102d59f91fdd327c68c1b7a8c43f3f4685422f52.tar.xz | |
command: add hmac sum supportfor md5, sha1, sha224, sha256, sha384, sha512
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>
Diffstat (limited to 'commands')
| -rw-r--r-- | commands/digest.c | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/commands/digest.c b/commands/digest.c index 20fa13f303..701e6a16fa 100644 --- a/commands/digest.c +++ b/commands/digest.c @@ -25,6 +25,7 @@ #include <xfuncs.h> #include <malloc.h> #include <digest.h> +#include <getopt.h> static int do_digest(char *algorithm, int argc, char *argv[]) { @@ -32,11 +33,32 @@ static int do_digest(char *algorithm, int argc, char *argv[]) int ret = 0; int i; unsigned char *hash; + unsigned char *key = NULL; + size_t keylen = 0; + int opt; + + while((opt = getopt(argc, argv, "h:")) > 0) { + switch(opt) { + case 'h': + key = optarg; + keylen = strlen(key); + break; + } + } - d = digest_alloc(algorithm); + argc -= optind; + argv += optind; + + if (key) { + char *tmp = asprintf("hmac(%s)", algorithm); + d = digest_alloc(tmp); + free(tmp); + } else { + d = digest_alloc(algorithm); + } BUG_ON(!d); - if (argc < 2) + if (argc < 1) return COMMAND_ERROR_USAGE; hash = calloc(digest_length(d), sizeof(unsigned char)); @@ -45,7 +67,6 @@ static int do_digest(char *algorithm, int argc, char *argv[]) return COMMAND_ERROR_USAGE; } - argv++; while (*argv) { char *filename = "/dev/mem"; loff_t start = 0, size = ~0; @@ -53,11 +74,14 @@ static int do_digest(char *algorithm, int argc, char *argv[]) /* arguments are either file, file+area or area */ if (parse_area_spec(*argv, &start, &size)) { filename = *argv; - if (argv[1] && !parse_area_spec(argv[1], &start, &size)) + if (argv[0] && !parse_area_spec(argv[0], &start, &size)) argv++; } - if (digest_file_window(d, filename, hash, start, size) < 0) { + ret = digest_file_window(d, filename, + key, keylen, + hash, start, size); + if (ret < 0) { ret = 1; } else { for (i = 0; i < digest_length(d); i++) |