radius - fast symbolic execution with r2

radius is a rust rewrite of ESILSolve with some architectural improvements. It uses boolector as the SMT solver rather than z3. It executes about 1000x faster than ESILSolve on average. radius gains additional speed over other rust based symbex tools by using u64 primitives for concrete values instead of constant valued bitvectors which incur significant overhead for all operations.

Building

Install radare2 with git clone https://github.com/radareorg/radare2.git radare2/sys/install.sh Then clone and build radius with cargo build --release

Example

```rust use radius2::radius::Radius;

fn main() { let mut radius = Radius::new("tests/r100"); let mut state = radius.callstate(0x004006fd); let addr: u64 = 0x100000; let flagval = state.symbolicvalue("flag", 12*8); state.memory.writevalue(addr, &flagval, 12); state.registers.set("rdi", state.concretevalue(addr, 64));

radius.breakpoint(0x004007a1);
radius.avoid(&[0x00400790]);
let mut new_state = radius.run(state, 1).unwrap();
let flag = new_state.evaluate_string_value(&flag_val).unwrap();
println!("FLAG: {}", flag);
assert_eq!(flag, "Code_Talkers");

} ```