On 27/08/2016 20:32, Sugumar wrote: > Can any one help me on this? Thanks. Some of the calls you mention can be made to fail if you can tell valgrind to simulate an out-of-memory (malloc fail) during the call. Some of the others fail only for invalid parameters or only under extremely rare conditions. Some cannot fail. Also note that on your list of functions, the functions whose names do not contain "EVP" are not EVP calls, but traditional OpenSSL/SSLeay crypto calls that are probably discontinued in OpenSSL 1.1.0. Enjoy Jakob -- Jakob Bohm, CIO, Partner, WiseMo A/S. https://www.wisemo.com Transformervej 29, 2860 S?borg, Denmark. Direct +45 31 13 16 10 This public discussion message is non-binding and may contain errors. WiseMo - Remote Service Management for PCs, Phones and Embedded