Use rsaEncryption OID for RSA keys

Author: jschanck

src/crypto/der.rs

@@ -18,9 +18,9 @@ pub const OID_SECP256R1_BYTES: &[u8] = &[
     0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03, 0x01, 0x07,
 ];
 pub const OID_ED25519_BYTES: &[u8] = &[/* RFC 8410 (id-ed25519) */ 0x2b, 0x65, 0x70];
-pub const OID_RS256_BYTES: &[u8] = &[
-    /* RFC 4055 (sha256WithRSAEncryption) */
-    0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b,
+pub const OID_RSA_ENCRYPTION_BYTES: &[u8] = &[
+    /* RFC 4055 (rsaEncryption) */
+    0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01,
 ];
 
 pub type Result<T> = std::result::Result<T, CryptoError>;

src/crypto/mod.rs

@@ -823,7 +823,7 @@ impl COSERSAKey {
             // algorithm: AlgorithmIdentifier
             &der::sequence(&[
                 // algorithm
-                &der::object_id(der::OID_RS256_BYTES)?,
+                &der::object_id(der::OID_RSA_ENCRYPTION_BYTES)?,
                 // parameters
                 &der::null()?,
             ])?,
@@ -1246,8 +1246,8 @@ mod test {
         // $ ascii2der | xxd -i
         // SEQUENCE {
         //   SEQUENCE {
-        //     # sha256WithRSAEncryption
-        //     OBJECT_IDENTIFIER { 1.2.840.113549.1.1.11 }
+        //     # rsaEncryption
+        //     OBJECT_IDENTIFIER { 1.2.840.113549.1.1.1 }
         //     NULL {}
         //   }
         //   BIT_STRING {
@@ -1260,7 +1260,7 @@ mod test {
         // }
         let expected: &[u8] = &[
             0x30, 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d,
-            0x01, 0x01, 0x0b, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a,
+            0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a,
             0x02, 0x82, 0x01, 0x01, 0x00, 0xd4, 0xd2, 0x53, 0xed, 0x7a, 0x69, 0xb1, 0x84, 0xc9,
             0xfb, 0x70, 0x30, 0x0c, 0x51, 0xb1, 0x8f, 0x89, 0x6c, 0xb1, 0x31, 0x6d, 0x87, 0xbe,
             0xe1, 0xc7, 0xf7, 0xb0, 0x4f, 0xe7, 0x27, 0xa7, 0xb7, 0x7c, 0x55, 0x20, 0x37, 0xa8,