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Add hash command to perform hashing using various algorithms

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This new command supports hashing SHA1 and SHA256. It could be extended
to others such as MD5 and the CRC algorithms. The syntax is modeled on
those:

   hash <algorithm> <address> <length> [*<dest_addr> | <dest_envvar>]

to calculate a hash, and:

   hash -v <algorithm> <address> <length> [*<verify_addr> | <verify_envvar>]

to verify a hash.

Use CONFIG_CMD_HASH to enable the command, CONFIG_SHA1 to enable SHA1 and
CONFIG_SHA256 to enable SHA256.

The existing sha1sum command remains.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2012-12-05 14:46:38 +00:00
committed by Tom Rini
parent e50b12c95c
commit bf36c5d521
4 changed files with 83 additions and 0 deletions
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common/Makefile
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@@ -104,6 +104,7 @@ COBJS-$(CONFIG_CMD_FS_GENERIC) += cmd_fs.o
COBJS-$(CONFIG_CMD_GETTIME) += cmd_gettime.o
COBJS-$(CONFIG_CMD_GPIO) += cmd_gpio.o
COBJS-$(CONFIG_CMD_I2C) += cmd_i2c.o
COBJS-$(CONFIG_CMD_HASH) += cmd_hash.o
COBJS-$(CONFIG_CMD_IDE) += cmd_ide.o
COBJS-$(CONFIG_CMD_IMMAP) += cmd_immap.o
COBJS-$(CONFIG_CMD_INI) += cmd_ini.o