sys/ec: add EVP_PKEY_CTX_set_ec_paramgen_curve_nid

Author: huwcbjones

openssl-sys/src/ec.rs

@@ -5,6 +5,20 @@ use super::*;
 
 pub const OPENSSL_EC_NAMED_CURVE: c_int = 1;
 
+cfg_if! {
+    if #[cfg(not(ossl300))] {
+        pub unsafe fn EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx: *mut EVP_PKEY_CTX, nid: c_int) -> c_int {
+            EVP_PKEY_CTX_ctrl(
+                ctx,
+                EVP_PKEY_EC,
+                EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN,
+                EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID,
+                nid,
+                ptr::null_mut(),
+            )
+        }
+    }
+}
 #[cfg(ossl300)]
 pub unsafe fn EVP_EC_gen(curve: *const c_char) -> *mut EVP_PKEY {
     EVP_PKEY_Q_keygen(
@@ -14,3 +28,5 @@ pub unsafe fn EVP_EC_gen(curve: *const c_char) -> *mut EVP_PKEY {
         curve,
     )
 }
+
+pub const EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID: c_int = EVP_PKEY_ALG_CTRL + 1;

openssl-sys/src/handwritten/ec.rs

@@ -1,6 +1,11 @@
 use super::super::*;
 use libc::*;
 
+#[cfg(ossl300)]
+extern "C" {
+    pub fn EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx: *mut EVP_PKEY_CTX, nid: c_int) -> c_int;
+}
+
 #[repr(C)]
 #[derive(Copy, Clone)]
 pub enum point_conversion_form_t {