Changes between 0.9.7c and 0.9.7d [xx XXX XXXX]
+ *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
+ calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
+ this HMAC (and other) operations are several times slower than OpenSSL
+ < 0.9.7.
+ [Steve Henson]
+
*) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
[Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]