add rsa signature tests

1 files changed, 108 insertions, 1 deletions

diff --git a/openssl/src/crypto/rsa.rs b/openssl/src/crypto/rsa.rs
index f9d1dece..021d450b 100644
--- a/openssl/src/crypto/rsa.rs
+++ b/openssl/src/crypto/rsa.rs
@@ -2,7 +2,7 @@ use ffi;
 use std::fmt;
 use ssl::error::{SslError, StreamError};
 use std::ptr;
-use std::io::{self, Read};
+use std::io::{self, Read, Write};
 
 use bn::BigNum;
 use bio::MemBio;
@@ -65,6 +65,25 @@ impl RSA {
             Ok(RSA(rsa))
         }
     }
+    
+    /// Writes an RSA private key as unencrypted PEM formatted data
+    pub fn private_key_to_pem<W>(&self, writer: &mut W) -> Result<(), SslError>
+    where W: Write
+    {
+         let mut mem_bio = try!(MemBio::new());
+         
+         let result = unsafe {
+             ffi::PEM_write_bio_RSAPrivateKey(mem_bio.get_handle(), self.0, ptr::null(), ptr::null_mut(), 0, None, ptr::null_mut())
+         };
+         
+         if result == 1 {
+             try!(io::copy(&mut mem_bio, writer).map_err(StreamError));
+         
+             Ok(())
+         } else {
+             Err(SslError::OpenSslErrors(vec![]))
+         }
+    }
 
     /// Reads an RSA public key from PEM formatted data.
     pub fn public_key_from_pem<R>(reader: &mut R) -> Result<RSA, SslError>
@@ -82,6 +101,25 @@ impl RSA {
         }
     }
     
+    /// Writes an RSA public key as PEM formatted data
+    pub fn public_key_to_pem<W>(&self, writer: &mut W) -> Result<(), SslError>
+    where W: Write
+    {
+         let mut mem_bio = try!(MemBio::new());
+         
+         let result = unsafe {
+             ffi::PEM_write_bio_RSA_PUBKEY(mem_bio.get_handle(), self.0)
+         };
+         
+         if result == 1 {
+             try!(io::copy(&mut mem_bio, writer).map_err(StreamError));
+         
+             Ok(())
+         } else {
+             Err(SslError::OpenSslErrors(vec![]))
+         }
+    }
+    
     pub fn size(&self) -> Result<u32, SslError> {
         if self.has_n() {
             unsafe {
@@ -170,3 +208,72 @@ impl fmt::Debug for RSA {
         write!(f, "RSA")
     }
 }
+
+#[cfg(test)]
+mod test {
+    use nid;
+    use std::fs::File;
+    use std::io::Write;
+    use super::*;
+    use crypto::hash::*;
+    
+    fn signing_input_rs256() -> Vec<u8> {
+        vec![101, 121, 74, 104, 98, 71, 99, 105, 79, 105, 74, 83, 85, 122, 73,
+        49, 78, 105, 74, 57, 46, 101, 121, 74, 112, 99, 51, 77, 105, 79, 105,
+        74, 113, 98, 50, 85, 105, 76, 65, 48, 75, 73, 67, 74, 108, 101, 72,
+        65, 105, 79, 106, 69, 122, 77, 68, 65, 52, 77, 84, 107, 122, 79, 68,
+        65, 115, 68, 81, 111, 103, 73, 109, 104, 48, 100, 72, 65, 54, 76,
+        121, 57, 108, 101, 71, 70, 116, 99, 71, 120, 108, 76, 109, 78, 118,
+        98, 83, 57, 112, 99, 49, 57, 121, 98, 50, 57, 48, 73, 106, 112, 48,
+        99, 110, 86, 108, 102, 81]
+    }
+   
+    fn signature_rs256() -> Vec<u8> {
+        vec![112, 46, 33, 137, 67, 232, 143, 209, 30, 181, 216, 45, 191, 120, 69,
+        243, 65, 6, 174, 27, 129, 255, 247, 115, 17, 22, 173, 209, 113, 125,
+        131, 101, 109, 66, 10, 253, 60, 150, 238, 221, 115, 162, 102, 62, 81,
+        102, 104, 123, 0, 11, 135, 34, 110, 1, 135, 237, 16, 115, 249, 69,
+        229, 130, 173, 252, 239, 22, 216, 90, 121, 142, 232, 198, 109, 219,
+        61, 184, 151, 91, 23, 208, 148, 2, 190, 237, 213, 217, 217, 112, 7,
+        16, 141, 178, 129, 96, 213, 248, 4, 12, 167, 68, 87, 98, 184, 31,
+        190, 127, 249, 217, 46, 10, 231, 111, 36, 242, 91, 51, 187, 230, 244,
+        74, 230, 30, 177, 4, 10, 203, 32, 4, 77, 62, 249, 18, 142, 212, 1,
+        48, 121, 91, 212, 189, 59, 65, 238, 202, 208, 102, 171, 101, 25, 129,
+        253, 228, 141, 247, 127, 55, 45, 195, 139, 159, 175, 221, 59, 239,
+        177, 139, 93, 163, 204, 60, 46, 176, 47, 158, 58, 65, 214, 18, 202,
+        173, 21, 145, 18, 115, 160, 95, 35, 185, 232, 56, 250, 175, 132, 157,
+        105, 132, 41, 239, 90, 30, 136, 121, 130, 54, 195, 212, 14, 96, 69,
+        34, 165, 68, 200, 242, 122, 122, 45, 184, 6, 99, 209, 108, 247, 202,
+        234, 86, 222, 64, 92, 178, 33, 90, 69, 178, 194, 85, 102, 181, 90,
+        193, 167, 72, 160, 112, 223, 200, 163, 42, 70, 149, 67, 208, 25, 238,
+        251, 71]
+   }
+   
+    #[test]
+    pub fn test_sign() {
+        let mut buffer = File::open("test/rsa.pem").unwrap();
+        let private_key = RSA::private_key_from_pem(&mut buffer).unwrap();
+        
+        let mut sha = Hasher::new(Type::SHA256);
+        sha.write_all(&signing_input_rs256()).unwrap();
+        let digest = sha.finish();
+        
+        let result = private_key.sign(nid::Nid::SHA256, &digest).unwrap();
+        
+        assert_eq!(result, signature_rs256());
+    }
+     
+    #[test]
+    pub fn test_verify() {        
+        let mut buffer = File::open("test/rsa.pem.pub").unwrap();
+        let public_key = RSA::public_key_from_pem(&mut buffer).unwrap();
+        
+        let mut sha = Hasher::new(Type::SHA256);
+        sha.write_all(&signing_input_rs256()).unwrap();
+        let digest = sha.finish();
+        
+        let result = public_key.verify(nid::Nid::SHA256, &digest, &signature_rs256()).unwrap();
+        
+        assert!(result);
+    }
+}
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