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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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1
include/config_cmd_all.h
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@ -41,6 +41,7 @@
#define CONFIG_CMD_FLASH /* flinfo, erase, protect */
#define CONFIG_CMD_FPGA /* FPGA configuration Support */
#define CONFIG_CMD_GETTIME /* Get time since boot */
#define CONFIG_CMD_HASH /* calculate hash / digest */
#define CONFIG_CMD_HWFLOW /* RTS/CTS hw flow control */
#define CONFIG_CMD_I2C /* I2C serial bus support */
#define CONFIG_CMD_IDE /* IDE harddisk support */