Try #224:

mbedtls/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mbedtls"
-version = "0.7.1"
+version = "0.7.2"
 authors = ["Jethro Beekman <[email protected]>"]
 build = "build.rs"
 edition = "2018"
@@ -30,7 +30,7 @@ num-bigint = { version = "0.2", optional = true }
 bit-vec = { version = "0.5", optional = true }
 block-modes = { version = "0.3", optional = true }
 rc2 = { version = "0.3", optional = true }
-tokio = { version = "0.3", optional = true }
+tokio = { version = "1.16.1", optional = true }
 proc-macro2 = "=1.0.24"
 quote = "=1.0.9"
 
@@ -48,6 +48,7 @@ rand = "0.4.0"
 serde_cbor = "0.6"
 hex = "0.3"
 matches = "0.1.8"
+cfg-if = "1.0.0"
 
 [build-dependencies]
 cc = "1.0"

mbedtls/src/cipher/raw/mod.rs

@@ -23,6 +23,7 @@ define!(
         Camellia = CIPHER_ID_CAMELLIA,
         Blowfish = CIPHER_ID_BLOWFISH,
         Arc4 = CIPHER_ID_ARC4,
+        Aria = CIPHER_ID_ARIA,
     }
 );
 
@@ -37,6 +38,7 @@ impl From<cipher_id_t> for CipherId {
             CIPHER_ID_CAMELLIA => CipherId::Camellia,
             CIPHER_ID_BLOWFISH => CipherId::Blowfish,
             CIPHER_ID_ARC4 => CipherId::Arc4,
+            CIPHER_ID_ARIA => CipherId::Aria,
             // This should be replaced with TryFrom once it is stable.
             _ => panic!("Invalid cipher_id_t"),
         }

mbedtls/src/cipher/raw/serde.rs

@@ -44,6 +44,7 @@ pub struct SavedRawCipher {
 #[derive(Serialize, Deserialize)]
 enum AlgorithmContext {
     Aes(Bytes<aes_context>),
+    Aria(Bytes<aria_context>),
     Des(Bytes<des_context>),
     Des3(Bytes<des3_context>),
     Gcm {
@@ -94,6 +95,12 @@ unsafe fn serialize_raw_cipher(mut cipher_context: cipher_context_t)
             aes_context.rk = ::core::ptr::null_mut();
             AlgorithmContext::Aes(Bytes(aes_context))
         }
+        (CIPHER_ID_ARIA, MODE_CBC)
+        | (CIPHER_ID_ARIA, MODE_CTR)
+        | (CIPHER_ID_ARIA, MODE_CFB)
+        | (CIPHER_ID_ARIA, MODE_ECB) => {
+            AlgorithmContext::Aria(Bytes(*(cipher_context.cipher_ctx as *const aria_context)))
+        }
         (CIPHER_ID_DES, MODE_CBC)
         | (CIPHER_ID_DES, MODE_CTR)
         | (CIPHER_ID_DES, MODE_CFB) => {
@@ -208,6 +215,9 @@ unsafe fn deserialize_raw_cipher(raw: SavedRawCipher, padding: raw::CipherPaddin
             // mbedtls_aes_context in the mbedTLS source).
             (*ret_aes_ctx).rk = &mut (*ret_aes_ctx).buf[0];
         }
+        (CIPHER_ID_ARIA, AlgorithmContext::Aria(Bytes(aria_ctx))) => {
+            *(cipher_context.cipher_ctx as *mut aria_context) = aria_ctx
+        }
         (CIPHER_ID_DES, AlgorithmContext::Des(Bytes(des_ctx))) => {
             *(cipher_context.cipher_ctx as *mut des_context) = des_ctx
         }
@@ -321,6 +331,7 @@ impl<'de, T: BytesSerde> Deserialize<'de> for Bytes<T> {
 
 unsafe impl BytesSerde for cipher_context_t {}
 unsafe impl BytesSerde for aes_context {}
+unsafe impl BytesSerde for aria_context {}
 unsafe impl BytesSerde for des_context {}
 unsafe impl BytesSerde for des3_context {}
 unsafe impl BytesSerde for gcm_context {}

mbedtls/src/ecp/mod.rs

@@ -79,6 +79,13 @@ impl EcGroup {
         Ok(ret)
     }
 
+    /// Initialize an EcGroup with custom group parameters.
+    ///
+    /// HAZMAT: This function DOES NOT perform a full check on parameters
+    /// against all known attacks. The caller MUST make sure that parameters are
+    /// trusted. Failing to comply with this requirement may result in the use
+    /// of INSECURE curves. Prefer [EcGroup::new] with known curves listed in
+    /// [EcGroupId].
     pub fn from_parameters(
         p: Mpi,
         a: Mpi,
@@ -96,15 +103,16 @@ impl EcGroup {
         let zero = Mpi::new(0)?;
 
         // basic bounds checking
-        if &a <= &zero
+        if &a < &zero
             || &a >= &p
-            || &b <= &zero
+            || &b < &zero
             || &b >= &p
-            || &g_x <= &zero
+            || &g_x < &zero
             || &g_x >= &p
-            || &g_y <= &zero
+            || &g_y < &zero
             || &g_y >= &p
             || &order <= &zero
+            || (&a == &zero && &b == &zero)
         {
             return Err(Error::EcpBadInputData);
         }
@@ -191,6 +199,8 @@ impl EcGroup {
         match self.group_id()? {
             EcGroupId::Curve25519 => Ok(8),
             EcGroupId::Curve448 => Ok(4),
+            // Requires a point-counting algorithm such as SEA.
+            EcGroupId::None => Err(Error::EcpFeatureUnavailable),
             _ => Ok(1),
         }
     }
@@ -754,4 +764,154 @@ mod tests {
         let pt3 = pt1.clone();
         assert_eq!(pt2.eq(&pt3).unwrap(), true);
     }
+
+    #[cfg(feature = "std")]
+    struct Params<'a> {
+        p:   &'a str,
+        a:   &'a str,
+        b:   &'a str,
+        g_x: &'a str,
+        g_y: &'a str,
+        n:   &'a str,
+    }
+
+    #[cfg(feature = "std")]
+    impl Into<super::Result<EcGroup>> for Params<'_> {
+        fn into(self) -> super::Result<EcGroup> {
+            use std::str::FromStr;
+            EcGroup::from_parameters(
+                Mpi::from_str(self.p)?,
+                Mpi::from_str(self.a)?,
+                Mpi::from_str(self.b)?,
+                Mpi::from_str(self.g_x)?,
+                Mpi::from_str(self.g_y)?,
+                Mpi::from_str(self.n)?,
+            )
+        }
+    }
+
+    #[test]
+    #[cfg(feature = "std")]
+    fn pathological_parameters() {
+        // y² = x³ mod 7 (note  a == b == 0)
+        let singular: super::Result<_> = Params {
+            p:   "0x07",
+            a:   "0x00",
+            b:   "0x00",
+            g_x: "0x01",
+            g_y: "0x02",
+            n:   "0x0b",
+        }.into();
+        assert!(singular.is_err());
+    }
+
+    #[test]
+    #[cfg(feature = "std")]
+    fn bad_generators() {
+        // y² = x³ + x + 6 (mod 7) with bad generator (1, 2) and prime order 11
+        let small_curve: super::Result<_> = Params {
+            p:   "0x07",
+            a:   "0x01",
+            b:   "0x06",
+            g_x: "0x01",
+            g_y: "0x02",
+            n:   "0x0b",
+        }.into();
+        assert!(small_curve.is_err());
+
+        // y² = x³ + x + 6 (mod 7) with bad generator (0, 0) and prime order 11
+        let small_curve_zero_gen: super::Result<_> = Params {
+            p:   "0x07",
+            a:   "0x01",
+            b:   "0x06",
+            g_x: "0x00",
+            g_y: "0x00",
+            n:   "0x0b",
+        }.into();
+        assert!(small_curve_zero_gen.is_err());
+    }
+
+    #[test]
+    #[cfg(feature = "std")]
+    fn unknown_cofactor() {
+        // y² = x³ + x + 6 (mod 7)  with generator (1, 6) and prime order 11
+        let small_curve: super::Result<_> = Params {
+            p:   "0x07",
+            a:   "0x01",
+            b:   "0x06",
+            g_x: "0x01",
+            g_y: "0x06",
+            n:   "0x0b",
+        }.into();
+        assert!(small_curve.unwrap().cofactor().is_err());
+    }
+
+    #[test]
+    #[cfg(feature = "std")]
+    fn zero_params_curves() {
+        use super::Result;
+        // Barreto-Naehrig 254, note a = 0
+        let bn254: Result<_> = Params {
+            p:   "0x2523648240000001BA344D80000000086121000000000013A700000000000013",
+            a:   "0x0000000000000000000000000000000000000000000000000000000000000000",
+            b:   "0x0000000000000000000000000000000000000000000000000000000000000002",
+            g_x: "0x2523648240000001BA344D80000000086121000000000013A700000000000012",
+            g_y: "0x0000000000000000000000000000000000000000000000000000000000000001",
+            n:   "0x2523648240000001BA344D8000000007FF9F800000000010A10000000000000D",
+        }.into();
+        assert!(bn254.is_ok());
+
+        // Prescribed embedded degree of 12, BLS12-381
+        let bls12_381: Result<_> = Params {
+            p:   "0x1a0111ea397fe69a4b1ba7b6434bacd764774b84f38512bf6730d2a0f6b0f6241eabfffeb153ffffb9feffffffffaaab",
+            a:   "0x00",
+            b:   "0x04",
+            g_x: "0x17F1D3A73197D7942695638C4FA9AC0FC3688C4F9774B905A14E3A3F171BAC586C55E83FF97A1AEFFB3AF00ADB22C6BB",
+            g_y: "0x08B3F481E3AAA0F1A09E30ED741D8AE4FCF5E095D5D00AF600DB18CB2C04B3EDD03CC744A2888AE40CAA232946C5E7E1",
+            n:   "0x73EDA753299D7D483339D80809A1D80553BDA402FFFE5BFEFFFFFFFF00000001",
+        }.into();
+        assert!(bls12_381.is_ok());
+
+        // Fp256BN
+        let fp256_bn: Result<_> = Params {
+            p:   "0xfffffffffffcf0cd46e5f25eee71a49f0cdc65fb12980a82d3292ddbaed33013",
+            a:   "0x00",
+            b:   "0x03",
+            g_x: "0x01",
+            g_y: "0x02",
+            n:   "0xfffffffffffcf0cd46e5f25eee71a49e0cdc65fb1299921af62d536cd10b500d",
+        }.into();
+        assert!(fp256_bn.is_ok());
+
+        // id-GostR3410-2001-CryptoPro-C-ParamSet, note g_x = 0
+        let gost_r3410: Result<_> = Params {
+            p:   "0x9b9f605f5a858107ab1ec85e6b41c8aacf846e86789051d37998f7b9022d759b",
+            a:   "0x9b9f605f5a858107ab1ec85e6b41c8aacf846e86789051d37998f7b9022d7598",
+            b:   "0x805a",
+            g_x: "0x00",
+            g_y: "0x41ece55743711a8c3cbf3783cd08c0ee4d4dc440d4641a8f366e550dfdb3bb67",
+            n:   "0x9b9f605f5a858107ab1ec85e6b41c8aa582ca3511eddfb74f02f3a6598980bb9",
+        }.into();
+        assert!(gost_r3410.is_ok());
+
+        // secp256k1 (Bitcoin), note a = 0
+        let my_secp256k1: Result<EcGroup> = Params {
+            p:   "0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f",
+            a:   "0x0000000000000000000000000000000000000000000000000000000000000000",
+            b:   "0x0000000000000000000000000000000000000000000000000000000000000007",
+            g_x: "0x79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
+            g_y: "0x483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8",
+            n:   "0xfffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364141",
+        }.into();
+        assert!(my_secp256k1.is_ok());
+        let my_secp256k1 = my_secp256k1.unwrap();
+
+        // We compare against the known SecP256K1
+        let secp256k1 = EcGroup::new(EcGroupId::SecP256K1).unwrap();
+        assert!(my_secp256k1.p()         == secp256k1.p());
+        assert!(my_secp256k1.a()         == secp256k1.a());
+        assert!(my_secp256k1.b()         == secp256k1.b());
+        assert!(my_secp256k1.generator() == secp256k1.generator());
+        assert!(my_secp256k1.order()     == secp256k1.order());
+    }
 }

mbedtls/src/hash/mod.rs

@@ -147,6 +147,29 @@ impl Md {
             Ok(olen)
         }
     }
+
+    pub fn hkdf(md: Type, salt: &[u8], ikm: &[u8], info: &[u8], key: &mut [u8]) -> Result<()> {
+        let md: MdInfo = match md.into() {
+            Some(md) => md,
+            None => return Err(Error::MdBadInputData),
+        };
+
+        unsafe {
+            hkdf(
+                md.inner,
+                salt.as_ptr(),
+                salt.len(),
+                ikm.as_ptr(),
+                ikm.len(),
+                info.as_ptr(),
+                info.len(),
+                key.as_mut_ptr(),
+                key.len(),
+            )
+            .into_result()?;
+            Ok(())
+        }
+    }
 }
 
 pub fn pbkdf2_hmac(

mbedtls/src/self_test.rs

@@ -59,7 +59,7 @@ pub unsafe fn disable() {
 }
 
 pub use mbedtls_sys::{
-    aes_self_test as aes, arc4_self_test as arc4, base64_self_test as base64,
+    aes_self_test as aes, arc4_self_test as arc4, aria_self_test as aria, base64_self_test as base64,
     camellia_self_test as camellia, ccm_self_test as ccm, ctr_drbg_self_test as ctr_drbg,
     des_self_test as des, dhm_self_test as dhm, ecjpake_self_test as ecjpake, ecp_self_test as ecp,
     entropy_self_test as entropy, gcm_self_test as gcm, hmac_drbg_self_test as hmac_drbg,