Actually I'm working on a small wrapper for the X509 object.
I need all the following:
1. Version: got this from X509_get_version(cert)
2. Serial number: got this from
ASN1_INTEGER_get(X509_get_serialNumber(cert))
3. Signature Algorithm as a string: got this from
OBJ_nid2ln(X509_get_signature_type(cert))
4. Signature alg parameters as a byte buffer: will EVP_PKEY_print_param()
help?
5. Issuer name: Used X509_get_issuer_name to get a X509_NAME and then
printed it in ONELINE format to a mem bio.
6. Subject name: Similar to 5.
7. Public key: I did memcpy(destBuffer, pubkey->pkey,
EVP_PKEY_size(pubkey)).
8. Not before/after: did the following, where ptime is my internal
structure, hope it's correct.
1. char *time = (char *) malloc(asn1time->length+1);
memcpy(time, asn1time->data, asn1time->length);
time[asn1time->length] = '\0';
sscanf(time, "%2d%2d%2d%2d%2d%2dZ", &ptime->year, &ptime->month,
&ptime->day, &ptime->hour, &ptime->minute, &ptime->second);
free(time);
ptime->millisecond = 0;
Am I doing all the right things? Or am I completely off the track?
On Mon, Jan 10, 2011 at 3:25 PM, Christian Hohnstaedt <
christ...@hohnstaedt.de> wrote:
> On Mon, Jan 10, 2011 at 02:32:35PM +0530, Karthik Ravikanti wrote:
> > I remember seeing a method to get the signature parameters as a buffer. I
> > can't find it now. :-(
>
> OBJ_nid2ln(OBJ_obj2nid(cert->sig_alg->algorithm))
> returns a pointer to the string representation of the signature algorithm
> like "sha1WithRSAEncryption"
>
>
> What else do you need ?
>
>
> Christian
>
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