---------------------------------------------------------------------------
SignatureAlgorithm      digestAlgo        (I)  signatureAlgo (RFC 2630)
                                          (II) digestEncrAlgo(PKCS#7)
---------------------------------------------------------------------------
(A) sha1WithRSA            1.3.14.3.2.26  (Ia)     1.2.840.113549.1.1.5
   (1.2.840.113549.1.1.5)                 (Ib)     1.2.840.113549.1.1.1
                                          (II)     1.2.840.113549.1.1.1


(B) md5WithRSA           1.2.840.1x9.2.5  (Ia)     1.2.840.113549.1.1.4
   (1.2.840.113549.1.1.4)                 (Ib)     1.2.840.113549.1.1.1
                                          (II)     1.2.840.113549.1.1.1


(C) ripeMD160WithRsa        1.3.36.3.2.1  (Ia)     1.3.36.3.3.1.2
   (1.3.36.3.3.1.2)                       (Ib)     1.2.840.113549.1.1.1
                                          (II)     1.2.840.113549.1.1.1


(D) sha1WithDsa            1.3.14.3.2.26  (Ia)     1.2.840.10040.4.3
   (1.2.840.10040.4.3)                    (Ib)     1.2.840.10040.4.1 (?)
                                          (II)     1.2.840.10040.4.1
