pa_data_to_md_ts_enc(krb5_context context,
		     const AS_REQ *a,
		     const krb5_principal client,
		     krb5_get_init_creds_ctx *ctx,
		     struct pa_info_data *ppaid,
		     METHOD_DATA *md)
{
    if (ctx->keyproc == NULL || ctx->keyseed == NULL)
	return 0;

    if (ppaid) {
	add_enc_ts_padata(context, md, client,
			  ctx->keyproc, ctx->keyseed,
			  &ppaid->etype, 1,
			  &ppaid->salt, ppaid->s2kparams);
    } else {
	krb5_salt salt;

	_krb5_debug(context, 5, "krb5_get_init_creds: pa-info not found, guessing salt");

	/* make a v5 salted pa-data */
	add_enc_ts_padata(context, md, client,
			  ctx->keyproc, ctx->keyseed,
			  a->req_body.etype.val, a->req_body.etype.len,
			  NULL, NULL);

	/* make a v4 salted pa-data */
	salt.salttype = KRB5_PW_SALT;
	krb5_data_zero(&salt.saltvalue);
	add_enc_ts_padata(context, md, client,
			  ctx->keyproc, ctx->keyseed,
			  a->req_body.etype.val, a->req_body.etype.len,
			  &salt, NULL);
    }
    return 0;
}

This classification refers to vulnerabilities resulting from poor cryptographic key management, including weak generation, insecure storage, or improper handling that compromises encryption strength.