Hello,
I need to generate a pkcs#7 certificate with a enveloped message
inside it. As far as I understand this message (X509) will be
encrypted with a random generated TDES key.
This is my snippet, but it is still incomplete and some comments
regarding my doubts, I hope someone could help me!!
//Load rsa key above
data=BIO_new_file("file.txt","r");
recipient=PEM_read_bio_X509(data,NULL,NULL,NULL);
PKCS7_set_type(p7, NID_pkcs7_enveloped);
PKCS7_add_recipient(p7, recipient);
EVP_PKEY_assign_RSA(pkey, rsa); //how will this RSA key be used??
pkey = EVP_PKEY_new();
EVP_PKEY_assign_RSA(pkey, rsa);
PKCS7_set_cipher(p7, EVP_des_ede3_cbc()); //TDES generated here
/*
BIO_puts(data, "Hello World!"); //so here is my data?
if ((p7bio = PKCS7_dataInit (p7,NULL)) == NULL) goto err;
for (;;){
i=BIO_read(data,buf,sizeof(buf));
if (i <= 0) break;
BIO_write(p7bio,buf,i);
}
BIO_flush(p7bio);
PKCS7_dataFinal(p7, p7bio);*/
PEM_write_PKCS7(stdout,p7);
Thanks,
[]s
Douglas Gemignani
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