US
RFC 8551: Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 4.0 Message Specification
https://www.rfc-editor.org/rfc/rfc8551
…FC3218 ]. - The Diffie-Hellman "small-subgroup" attacks described in RFC 2785 [ RFC2785 ]. - The attacks against hash algorithms described in RFC 4270 [ RFC4270 ]. This specification uses Public-Key Cryptography technologies. It is assumed that the private key is protected to ens…