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- Fixed incorrect handling of negative first input value in mpi_sub_abs() (found by code coverage tests).

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Paul Bakker 2009-06-20 10:50:55 +00:00
parent f7ca7b99dd
commit 1ef7a53fa2
2 changed files with 7 additions and 0 deletions
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2
ChangeLog
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@ -6,6 +6,8 @@ Bug fixes
mpi_read_string() (found by code coverage tests). mpi_read_string() (found by code coverage tests).
* Fixed incorrect handling of one single negative input * Fixed incorrect handling of one single negative input
value in mpi_add_abs() (found by code coverage tests). value in mpi_add_abs() (found by code coverage tests).
* Fixed incorrect handling of negative first input
value in mpi_sub_abs() (found by code coverage tests).
= Version 0.11.1 released on 2009-05-17 = Version 0.11.1 released on 2009-05-17
* Fixed missing functionality for SHA-224, SHA-256, SHA384, * Fixed missing functionality for SHA-224, SHA-256, SHA384,

5
library/bignum.c
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@ -762,6 +762,11 @@ int mpi_sub_abs( mpi *X, mpi *A, mpi *B )
if( X != A ) if( X != A )
MPI_CHK( mpi_copy( X, A ) ); MPI_CHK( mpi_copy( X, A ) );
/*
* X should always be positive as a result of unsigned substractions.
*/
X->s = 1;
ret = 0; ret = 0;
for( n = B->n - 1; n >= 0; n-- ) for( n = B->n - 1; n >= 0; n-- )