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Re: [PATCH 3/3] sha1: use char type for temporary work buffer

From
Junio C Hamano <gitster@pobox.com>
Date
Sep 12, 2012, 18:42 UTC
Message-ID
<7v8vcfccbn.fsf@alter.siamese.dyndns.org>
In-Reply-To
<a8c30a998cad6a7b38bd983e7689a628567a8176.1347442430.git.ydroneaud@opteya.com>
Yann Droneaud <ydroneaud@opteya.com> writes:
Show 7 quoted lines
> The SHA context is holding a temporary buffer for partial block.
>
> This block must 64 bytes long. It is currently described as
> an array of 16 integers.
>
> Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
> ---

As we do not work with 16-bit integers anyway, 16 integers occupy 64 bytes anyway.

What problem does this series fix?
Show 16 quoted lines
>  block-sha1/sha1.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/block-sha1/sha1.h b/block-sha1/sha1.h
> index b864df6..d29ff6a 100644
> --- a/block-sha1/sha1.h
> +++ b/block-sha1/sha1.h
> @@ -9,7 +9,7 @@
>  typedef struct {
>  	unsigned long long size;
>  	unsigned int H[5];
> -	unsigned int W[16];
> +	unsigned char W[64];
>  } blk_SHA_CTX;
>  
>  void blk_SHA1_Init(blk_SHA_CTX *ctx);
Previous: Yann DroneaudNext: Yann Droneaud
Message 13 of 14 in “Janitor minor fixes on SHA1”
  1. 0/3 Janitor minor fixes on SHA1Yann Droneaud, Sep 12, 2012
  2. 1/3 sha1: update pointer and remaining length after subfunction callYann Droneaud, Sep 12, 2012
  3. Junio C HamanoSep 12, 2012
  4. 2/3 sha1: clean pointer arithmeticYann Droneaud, Sep 12, 2012
  5. Junio C HamanoSep 12, 2012
  6. Yann DroneaudSep 12, 2012
  7. Bruce KorbSep 12, 2012
  8. 3/3 sha1: use char type for temporary work bufferYann Droneaud, Sep 12, 2012
  9. Jeff KingSep 12, 2012
  10. Yann DroneaudSep 12, 2012
  11. Jeff KingSep 12, 2012
  12. Yann DroneaudSep 13, 2012
  13. Junio C HamanoSep 12, 2012
  14. Yann DroneaudSep 12, 2012

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