From 215b01bba8bc662d35f72b084700b192d367dfb4 Mon Sep 17 00:00:00 2001 From: Bartlomiej Sieka Date: Tue, 22 Apr 2008 12:27:56 +0200 Subject: Add support for calculating hashes with watchdog triggering Implement watchodg-aware variants of hash calculation functions: - crc32_wd() - md5_wd() - sha1_csum_wd() The above functions calculate the hash of the input buffer in chunks, triggering the watchdog after processing each chunk. The chunk size is given as a function call parameter. Signed-off-by: Bartlomiej Sieka --- include/u-boot/md5.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/u-boot') diff --git a/include/u-boot/md5.h b/include/u-boot/md5.h index 046d1eee7..8b44a7f84 100644 --- a/include/u-boot/md5.h +++ b/include/u-boot/md5.h @@ -20,4 +20,12 @@ struct MD5Context { */ void md5 (unsigned char *input, int len, unsigned char output[16]); +/* + * Calculate and store in 'output' the MD5 digest of 'len' bytes at 'input'. + * 'output' must have enough space to hold 16 bytes. If 'chunk' Trigger the + * watchdog every 'chunk_sz' bytes of input processed. + */ +void md5_wd (unsigned char *input, int len, unsigned char output[16], + unsigned int chunk_sz); + #endif /* _MD5_H */ -- cgit v1.2.3