ne_ssl_client_cert

3

ne_ssl_clicert_read

ne_ssl_clicert_name

ne_ssl_clicert_encrypted

ne_ssl_clicert_decrypt

ne_ssl_clicert_owner

ne_ssl_clicert_free

SSL client certificate handling

          #include <ne_ssl.h>

            ne_ssl_client_cert *ne_ssl_clicert_read
            const char *filename

            const char *ne_ssl_clicert_name
            const ne_ssl_client_cert *ccert

            int ne_ssl_clicert_encrypted
            const ne_ssl_client_cert *ccert

            int ne_ssl_clicert_decrypt
            ne_ssl_client_cert *ccert
            const char *password

            const ne_ssl_certificate *ne_ssl_clicert_owner
            const ne_ssl_client_cert *ccert

            void ne_ssl_clicert_free
            ne_ssl_client_cert *ccert

## Description

The `ne_ssl_clicert_read` function reads a client certificate from a PKCS#12-formatted file, and returns an `ne_ssl_client_cert` object. If the client certificate is encrypted, it must be decrypted before it is used. An `ne_ssl_client_cert` object holds a client certificate and the associated private key, not just a certificate; the term "client certificate" will used to refer to this pair.

A client certificate can be in one of two states: encrypted or decrypted. The `ne_ssl_clicert_encrypted` function will return non-zero if the client certificate is in the encrypted state. A client certificate object returned by `ne_ssl_clicert_read` may be initially in either state, depending on whether the file was encrypted or not.

`ne_ssl_clicert_decrypt` can be used to decrypt a client certificate using the appropriate password. This function must only be called if the object is in the encrypted state; if decryption fails, the certificate state does not change, so decryption can be attempted more than once using different passwords.

A client certificate can be given a "friendly name" when it is created; `ne_ssl_clicert_name` will return this name (or &null; if no friendly name was specified). `ne_ssl_clicert_name` can be used when the client certificate is in either the encrypted or decrypted state, and will return the same string for the lifetime of the object.

The function `ne_ssl_clicert_owner` returns the certificate part of the client certificate; it must only be called if the client certificate is in the decrypted state.

When the client certificate is no longer needed, the `ne_ssl_clicert_free` function should be used to destroy the object.

## Return value

`ne_ssl_clicert_read` returns a client certificate object, or &null; if the file could not be read. `ne_ssl_clicert_encrypted` returns zero if the object is in the decrypted state, or non-zero if it is in the encrypted state. `ne_ssl_clicert_name` returns a &nul;-terminated friendly name string, or &null;. `ne_ssl_clicert_owner` returns a certificate object.

## Examples

The following code reads a client certificate and decrypts it if necessary, then loads it into an HTTP session.

    ne_ssl_client_cert *ccert;

    ccert = ne_ssl_clicert_read("/path/to/client.p12");

    if (ccert == NULL) {
       /* handle error... */
    } else if (ne_ssl_clicert_encrypted(ccert)) {
       char *password = prompt_for_password();

       if (ne_ssl_clicert_decrypt(ccert, password)) {
          /* could not decrypt! handle error... */
       }
    }

    ne_ssl_set_clicert(sess, ccert);

## See also

ne_ssl_cert_read