PKCS7_sign seems to add newlines

Markus Bucher Fri, 22 May 2009 00:38:13 -0700

Hi,

I'm trying to use SMIME for signing, but I can not verify my signed data
successfully since there seem to be newlines were they should not be!
It seems to have something to do with the flags because when I only set
PKCS7_TEXT, it verifies ok.


Here my code:
    PKCS7 *pkcs7 = NULL;
    BIO *data = NULL;
    BIO *out = NULL;
    data = BIO_new( BIO_s_mem());
    BIO_puts( data, "Hello World!!!\n");
    out = BIO_new_fp(stdout, BIO_NOCLOSE);
   
    int flags = PKCS7_DETACHED | PKCS7_TEXT | PKCS7_STREAM;
//    int flags = PKCS7_TEXT | PKCS7_DETACHED;
   
    pkcs7 = PKCS7_sign( x509, key, NULL, data, flags);
   
    if( SMIME_write_PKCS7( out, pkcs7, data, flags) < 1)
        cout << "SMIME_write failed" << endl;
  
    cout << "pkcs7_vrfy gave " << PKCS7_verify( pkcs7, NULL, cert_ctx,
NULL, data, flags) << endl;
   

And the output:

MIME-Version: 1.0
Content-Type: multipart/signed;
protocol="application/x-pkcs7-signature"; micalg=sha1;
boundary="----B5AA672462CF11D13C195B1453095AB8"

This is an S/MIME signed message

------B5AA672462CF11D13C195B1453095AB8
Content-Type: text/plain



Hello World!!!


------B5AA672462CF11D13C195B1453095AB8
Content-Type: application/x-pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"
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------B5AA672462CF11D13C195B1453095AB8--

pkcs7_vrfy gave 0

Thank you,
Markus

smime.p7s
Description: S/MIME Cryptographic Signature

PKCS7_sign seems to add newlines

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