adding functionality to directly get and set RSA key material

1 files changed, 36 insertions, 1 deletions

diff --git a/openssl/src/crypto/rsa.rs b/openssl/src/crypto/rsa.rs
index ee0d9ec4..034f8828 100644
--- a/openssl/src/crypto/rsa.rs
+++ b/openssl/src/crypto/rsa.rs
@@ -7,7 +7,7 @@ use std::io::{self, Read};
 use bn::BigNum;
 use bio::MemBio;
 
-pub struct RSA(*mut ffi::RSA);
+pub struct RSA(pub *mut ffi::RSA);
 
 impl Drop for RSA {
     fn drop(&mut self) {
@@ -18,6 +18,15 @@ impl Drop for RSA {
 }
 
 impl RSA {
+    /// only useful for associating the key material directly with the key, it's safer to use
+    /// the supplied load and save methods for DER formatted keys.
+    pub fn new() -> Result<RSA, SslError> {
+        unsafe {
+            let rsa = try_ssl_null!(ffi::RSA_new());
+            Ok(RSA(rsa))
+        }
+    }
+
     /// Reads an RSA private key from PEM formatted data.
     pub fn private_key_from_pem<R>(reader: &mut R) -> Result<RSA, SslError>
     where R: Read
@@ -61,6 +70,19 @@ impl RSA {
         }
     }
 
+    /// set the key modulus
+    pub fn set_n(&mut self, n: BigNum) {
+        unsafe {
+            (*self.0).n = n.into_raw();
+        }
+    }
+
+    pub fn has_n(&self) -> bool {
+        unsafe {
+            !(*self.0).n.is_null()
+        }
+    }
+
     pub fn d(&self) -> Result<BigNum, SslError> {
         unsafe {
             BigNum::new_from_ffi((*self.0).d)
@@ -73,6 +95,19 @@ impl RSA {
         }
     }
 
+    /// set the exponent
+    pub fn set_e(&mut self, e: BigNum) {
+        unsafe {
+            (*self.0).e = e.into_raw();
+        }
+    }
+
+    pub fn has_e(&self) -> bool {
+        unsafe {
+            !(*self.0).e.is_null()
+        }
+    }
+
     pub fn p(&self) -> Result<BigNum, SslError> {
         unsafe {
             BigNum::new_from_ffi((*self.0).p)