On Thu, Feb 05, 2015, Gayathri Manoj wrote: > Hi All, > > Tried with above method and its not worked. Please let me know is it > possible to use NID_md5WithRSAEncryption, NID_md5 in fips mode. > You can use the OID and encode structures using it: the ASN.1 code is not part of the FIPS module. You can't use the signing or digest algorithm (at least by default) as that is blocked in FIPS mode. But you'd get an error message and not a crash. Steve. -- Dr Stephen N. Henson. OpenSSL project core developer. Commercial tech support now available see: http://www.openssl.org