Hi,
I'm trying to write a pkcs7 object with following code to a file:
unsigned char *tmp, signature;
int iLen;
iLen = i2d_PKCS7(p7, NULL);
signature = (unsigned char*) malloc(iLen);
tmp = signature;
iLen = i2d_PKCS7(p7, &tmp);
FILE *fpkcs7 = fopen("C:\\sig.p7s", "w+");
for(int i = 0; i < iLen; i++)
fprintf(fpkcs7, "%c", signature[i]);
fclose(fpkcs7);
If I try to verify the file "sig.p7s" with an asn1 dump it isn't a
valid asn1 structure.
If I use the following code and dump "sig.p7s" there is no problem:
FILE *fpkcs7 = fopen("C:\\sig.p7s", "w+");
BIO *out = BIO_new(BIO_s_file());
BIO_set_fp(out, fpkcs7, BIO_NOCLOSE);
i2d_PKCS7_bio(out, p7);
fclose(fpkcs7);
Can anybody tell me what is the difference? The asn1 dump is 100% working
correct!
I have to use the DER representation of the pkcs7 object "p7" and so I want
to use
the first code but I don't know if it's working correct because I can't dump
it!
Best regards,
Christian Wiesbauer
