1 files changed, 0 insertions, 145 deletions
diff --git a/src/rust/crypto/rand/rng.rs b/src/rust/crypto/rand/rng.rs
deleted file mode 100644
index 644a5c20b1..0000000000
--- a/src/rust/crypto/rand/rng.rs
+++ /dev/null
@@ -1,145 +0,0 @@
-// Copyright (c) 2018-2019, The Tor Project, Inc.
-// Copyright (c) 2018, isis agora lovecruft
-// See LICENSE for licensing information
-
-//! Wrappers for Tor's random number generators to provide implementations of
-//! `rand_core` traits.
-
-// This is the real implementation, in use in production, which calls into our C
-// wrappers in /src/common/crypto_rand.c, which call into OpenSSL, system
-// libraries, and make syscalls.
-#[cfg(not(test))]
-mod internal {
-    use std::u64;
-
-    use rand_core::impls::next_u32_via_fill;
-    use rand_core::impls::next_u64_via_fill;
-    use rand_core::CryptoRng;
-    use rand_core::Error;
-    use rand_core::RngCore;
-
-    use external::c_tor_crypto_rand;
-    use external::c_tor_crypto_seed_rng;
-    use external::c_tor_crypto_strongest_rand;
-
-    use tor_log::LogDomain;
-    use tor_log::LogSeverity;
-
-    /// Largest strong entropy request permitted.
-    //
-    // C_RUST_COUPLED: `MAX_STRONGEST_RAND_SIZE` /src/common/crypto_rand.c
-    const MAX_STRONGEST_RAND_SIZE: usize = 256;
-
-    /// A wrapper around OpenSSL's RNG.
-    pub struct TorRng {
-        // This private, zero-length field forces the struct to be treated the
-        // same as its opaque C counterpart.
-        _unused: [u8; 0],
-    }
-
-    /// Mark `TorRng` as being suitable for cryptographic purposes.
-    impl CryptoRng for TorRng {}
-
-    impl TorRng {
-        // C_RUST_COUPLED: `crypto_seed_rng()` /src/common/crypto_rand.c
-        #[allow(dead_code)]
-        pub fn new() -> Self {
-            if !c_tor_crypto_seed_rng() {
-                tor_log_msg!(
-                    LogSeverity::Warn,
-                    LogDomain::General,
-                    "TorRng::from_seed()",
-                    "The RNG could not be seeded!"
-                );
-            }
-            // XXX also log success at info level —isis
-            TorRng { _unused: [0u8; 0] }
-        }
-    }
-
-    impl RngCore for TorRng {
-        // C_RUST_COUPLED: `crypto_strongest_rand()` /src/common/crypto_rand.c
-        fn next_u32(&mut self) -> u32 {
-            next_u32_via_fill(self)
-        }
-
-        // C_RUST_COUPLED: `crypto_strongest_rand()` /src/common/crypto_rand.c
-        fn next_u64(&mut self) -> u64 {
-            next_u64_via_fill(self)
-        }
-
-        // C_RUST_COUPLED: `crypto_strongest_rand()` /src/common/crypto_rand.c
-        fn fill_bytes(&mut self, dest: &mut [u8]) {
-            c_tor_crypto_rand(dest);
-        }
-
-        // C_RUST_COUPLED: `crypto_strongest_rand()` /src/common/crypto_rand.c
-        fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
-            Ok(self.fill_bytes(dest))
-        }
-    }
-
-    /// A CSPRNG which hashes together randomness from OpenSSL's RNG and entropy
-    /// obtained from the operating system.
-    pub struct TorStrongestRng {
-        // This private, zero-length field forces the struct to be treated the
-        // same as its opaque C counterpart.
-        _unused: [u8; 0],
-    }
-
-    /// Mark `TorRng` as being suitable for cryptographic purposes.
-    impl CryptoRng for TorStrongestRng {}
-
-    impl TorStrongestRng {
-        // C_RUST_COUPLED: `crypto_seed_rng()` /src/common/crypto_rand.c
-        #[allow(dead_code)]
-        pub fn new() -> Self {
-            if !c_tor_crypto_seed_rng() {
-                tor_log_msg!(
-                    LogSeverity::Warn,
-                    LogDomain::General,
-                    "TorStrongestRng::from_seed()",
-                    "The RNG could not be seeded!"
-                );
-            }
-            // XXX also log success at info level —isis
-            TorStrongestRng { _unused: [0u8; 0] }
-        }
-    }
-
-    impl RngCore for TorStrongestRng {
-        // C_RUST_COUPLED: `crypto_strongest_rand()` /src/common/crypto_rand.c
-        fn next_u32(&mut self) -> u32 {
-            next_u32_via_fill(self)
-        }
-
-        // C_RUST_COUPLED: `crypto_strongest_rand()` /src/common/crypto_rand.c
-        fn next_u64(&mut self) -> u64 {
-            next_u64_via_fill(self)
-        }
-
-        // C_RUST_COUPLED: `crypto_strongest_rand()` /src/common/crypto_rand.c
-        fn fill_bytes(&mut self, dest: &mut [u8]) {
-            debug_assert!(dest.len() <= MAX_STRONGEST_RAND_SIZE);
-
-            c_tor_crypto_strongest_rand(dest);
-        }
-
-        // C_RUST_COUPLED: `crypto_strongest_rand()` /src/common/crypto_rand.c
-        fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
-            Ok(self.fill_bytes(dest))
-        }
-    }
-}
-
-// For testing, we expose a pure-Rust implementation.
-#[cfg(test)]
-mod internal {
-    // It doesn't matter if we pretend ChaCha is a CSPRNG in tests.
-    pub use rand_crate::ChaChaRng as TorRng;
-    pub use rand_crate::ChaChaRng as TorStrongestRng;
-}
-
-// Finally, expose the public functionality of whichever appropriate internal
-// module.
-pub use self::internal::*;