Thanks Tom Added OpenSSL_add_all_digests() It is working
From: owner-openssl-us...@openssl.org [mailto:owner-openssl-us...@openssl.org] On Behalf Of Tom marchand Sent: Saturday, August 10, 2013 5:25 AM To: openssl-users@openssl.org Subject: Re: Issue facing while using function "const EVP_MD *EVP_get_digestbyname(const char *name)" Do you have to call OpenSSL_add_all_digests() first? On Aug 9, 2013, at 7:17 PM, Sanjay Kumar (sanjaku5) wrote: Hello All, I have a test program to use the function EVP_get_digestbyname as below I am not able figure out why function "EVP_get_digestbyname" return NULL ? After running the program as below I am getting the print "md is NULL" Any help ? #include <stdio.h> #include <openssl/evp.h> int main(int argc, char *argv[]) { const EVP_MD *md; const char *hash_type = "SHA1"; md = EVP_get_digestbyname(hash_type); if(md == NULL) { printf("\n md is NULL\n"); } return 0; } Compilation: cc test.c -lcrypto Running: ./a.out md is NULL Thanks, Sanjay
