[ESRG-CVS] sfesrg/esrgpcpj/shared/c_datd esrg_sha512.c, 1.4, 1.5 esrg_sha512.h, 1.3, 1.4

[David T. A. <dta...@us...>]

Update of /cvsroot/esrg/sfesrg/esrgpcpj/shared/c_datd
In directory sfp-cvsdas-1.v30.ch3.sourceforge.com:/tmp/cvs-serv31511/shared/c_datd

Modified Files:
	esrg_sha512.c esrg_sha512.h 
Log Message:
Passed final review.


Index: esrg_sha512.h
===================================================================
RCS file: /cvsroot/esrg/sfesrg/esrgpcpj/shared/c_datd/esrg_sha512.h,v
retrieving revision 1.3
retrieving revision 1.4
diff -C2 -d -r1.3 -r1.4
*** esrg_sha512.h	28 Nov 2009 19:09:02 -0000	1.3
--- esrg_sha512.h	29 Nov 2009 02:16:05 -0000	1.4
***************
*** 11,20 ****
     #endif
  
!    //Fundamental state (or RFC 1321 calls it context) for forming
!    //MD5s.  Conceptually private to this module.
     struct ESRG_SHA512_Sha512StateStruct
        {
        unsigned __int64 H0, H1, H2, H3, H4, H5, H6, H7;
!          //Directly from FIPS 180-3.
        unsigned __int64 bit_count;
           //The count of bits processed thus far.  The algorithm here
--- 11,21 ----
     #endif
  
!    //Fundamental state for forming
!    //SHA-512s.  Conceptually private to this module.
     struct ESRG_SHA512_Sha512StateStruct
        {
        unsigned __int64 H0, H1, H2, H3, H4, H5, H6, H7;
!          //Directly from FIPS 180-3.  In retrospect, this might have
! 	     //been better implemented as an array.
        unsigned __int64 bit_count;
           //The count of bits processed thus far.  The algorithm here
***************
*** 22,30 ****
           //each byte processed.  FIPS 180-3 calls for processing
  	     //messages up to length 2^128, but for obvious reasons
! 	     //we don't do that.
        unsigned __int64 M[16];
!          //These are the words corresponding to the chars.  We don't
!          //dare union them because of big-endian/little-endian concerns.
! 	     //The "M" nomenclature is from FIPS 180-3.
        unsigned char buf[128];
           //We can't proceed to execute a round unless we have the 
--- 23,35 ----
           //each byte processed.  FIPS 180-3 calls for processing
  	     //messages up to length 2^128, but for obvious reasons
! 	     //we don't do that.  2^64-1 bits is in excess of 2^61-1
! 	     //bytes, or somewhere around 2,000 terabytes.  This
! 	     //isn't a practical limit with current computer technology.
        unsigned __int64 M[16];
!          //These are the words corresponding to the chars (below).  We don't
!          //dare union to extract them because of big-endian/little-endian concerns.
! 	     //The "M" nomenclature is from FIPS 180-3.  At the time the
! 	     //SHA-512 rounds are done, the chars (below) are converted to words
! 	     //(this field) so that the rounds can be done using the words.
        unsigned char buf[128];
           //We can't proceed to execute a round unless we have the 
***************
*** 36,39 ****
--- 41,45 ----
        };
  
+ 
     //Result structure, used to hold result.  Caller is allowed to
     //pick it apart.
***************
*** 46,49 ****
--- 52,56 ----
        };
  
+ 
     //Initializes the SHA512 calculation structure.
     DECMOD_ESRG_SHA512 
***************
*** 74,77 ****
--- 81,87 ----
  /***************************************************************************
  ** $Log$
+ ** Revision 1.4  2009/11/29 02:16:05  dtashley
+ ** Passed final review.
+ **
  ** Revision 1.3  2009/11/28 19:09:02  dtashley
  ** Appears to be working.  Ready for final review and cleanup.

Index: esrg_sha512.c
===================================================================
RCS file: /cvsroot/esrg/sfesrg/esrgpcpj/shared/c_datd/esrg_sha512.c,v
retrieving revision 1.4
retrieving revision 1.5
diff -C2 -d -r1.4 -r1.5
*** esrg_sha512.c	28 Nov 2009 19:09:02 -0000	1.4
--- esrg_sha512.c	29 Nov 2009 02:16:05 -0000	1.5
***************
*** 131,134 ****
--- 131,135 ----
     }
  
+ 
  //Copies the buffer of words into a string buffer of string length 128, and also places
  //the zero terminator, which means that the string supplied by the caller must be of size
***************
*** 440,443 ****
--- 441,447 ----
  /******************************************************************************
  ** $Log$
+ ** Revision 1.5  2009/11/29 02:16:05  dtashley
+ ** Passed final review.
+ **
  ** Revision 1.4  2009/11/28 19:09:02  dtashley
  ** Appears to be working.  Ready for final review and cleanup.