Add X9.42 DH test.

          . " -recip $smdir/smec2.pem -aes128"

	  . " -keyopt ecdh_kdf_md:sha256 -keyopt ecdh_cofactor_mode:1",

        "-decrypt -recip $smdir/smec2.pem -in test.cms -out smtst.txt"

    ],

    [

"enveloped content test streaming S/MIME format, X9.42 DH",

        "-encrypt -in smcont.txt"

          . " -stream -out test.cms"

          . " -recip $smdir/smdh.pem -aes128",

        "-decrypt -recip $smdir/smdh.pem -in test.cms -out smtst.txt"

    ]

);