cuberite/polarssl
1
0
Fork 0
mirror of https://github.com/cuberite/polarssl.git synced 2025-09-10 07:36:28 -04:00
Code Issues Packages Projects Releases Wiki Activity

Move underflow test to make time constant

Browse Source
This commit is contained in:
Janos Follath 2016-02-11 11:08:18 +00:00 committed by Simon Butcher
parent 574b118bf8
commit 092f2c48c4
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
library/rsa.c
View File

@ -702,6 +702,12 @@ int rsa_rsaes_oaep_decrypt( rsa_context *ctx,
if( md_info == NULL )
return( POLARSSL_ERR_RSA_BAD_INPUT_DATA );
hlen = mbedtls_md_get_size( md_info );
// checking for integer underflow
if( 2 * hlen + 2 > ilen )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
/*
* RSA operation
*/