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Re: SIGNED Macro and PEM Signatures

1993-03-10 11:07:00


   >From: jefft(_at_)COM(_dot_)RSA (Jeff Thompson)
   >Subject: SIGNED Macro and PEM Signatures
   >Date: Mon, 8 Mar 93 09:32:09 PST

   >
   >certificate issuer's public key (Low Assurance PCA):
   >
   >30 7c 30 0d 06 09 2a 86 48 86 f7 0d
   >01 01 01 05 00 03 6b 00 30 68 02 61
   >00 b0 b4 0e 9a 3a 46 4e 87 03 ff b8
   >db ca d8 af 41 f3 c3 f4 13 1c f6 57
   >1e 39 a5 35 49 b4 20 94 dc 92 f8 ee
   >1e a1 03 5f 94 21 2b 75 1a 3b 07 44
   >5d bd d6 ef 4d 7e 23 00 f4 2c f5 73
   >47 90 bc e8 ba 51 7f a8 19 ee f7 5f
   >17 46 dc e5 ff d1 23 fe 64 2e 68 94
   >b3 81 de 5a 40 28 8d d6 d7 14 af 84
   >ef 02 03 01 00 01

I guess this is actually the X.509 subjectPublicKeyInfo of
the enclosing certificate, not X.509 C.3 subjectPublicKey... 

Thanks for the example. I eventually pulled the subjectPublicKey
from the bitstring. This minor, but unnecessary, semantic problem confused
us, and our certificate checker, for a while.

I encourage *the* worked example to return to the design (section 2.2) 
of "Some examples of the PKCS standards". It was clearer.

-------------------


( UNIV SEQ
    ( UNIV SEQ
        ( UNIV OID 0x9
            0x2a864886
            0xf70d0101
            0x01
        )
        ( UNIV NULL 0x0 )
    )
    ( UNIV BITS 0x6b
        0x00306802
        0x6100b0b4
        0x0e9a3a46
        0x4e8703ff
        0xb8dbcad8
        0xaf41f3c3
        0xf4131cf6
        0x571e39a5
        0x3549b420
        0x94dc92f8
        0xee1ea103
        0x5f94212b
        0x751a3b07
        0x445dbdd6
        0xef4d7e23
        0x00f42cf5
        0x734790bc
        0xe8ba517f
        0xa819eef7
        0x5f1746dc
        0xe5ffd123
        0xfe642e68
        0x94b381de
        0x5a40288d
        0xd6d714af
        0x84ef0203
        0x010001
    )
)


   subjectPublicKeyInfo {
      algorithm {
         algorithm 1.2.840.113549.1.1.1,
         parameters NULL
      },
      subjectPublicKey 
'003048024100c5596591f670ac387fbabff6c0d083e593220e0bc3a00f975b9eb7ad514c777bae14252df83058747f177eac9c1da5394d33ebd8de9216a41c69d2d4838fa4510203010001'H
   }
 

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