tree cc460bbf23f58b57f0f4e5f4a700a7c47faf1b16
parent df33a6a8056be7fcb8a1784fa026d0308f19dc7b
author Andres AG <andres.amayagarcia@arm.com> 1484825073 +0000
committer Andres AG <andres.amayagarcia@arm.com> 1487155442 +0000

Fix data loss in unsigned int cast in PK

This patch introduces some additional checks in the PK module for 64-bit
systems only. The problem is that the API functions in the PK
abstraction accept a size_t value for the hashlen, while the RSA module
accepts an unsigned int for the hashlen. Instead of silently casting
size_t to unsigned int, this change checks whether the hashlen overflows
an unsigned int and returns an error.