Add 'sapling-crypto/' from commit '21084bde2019c04bd34208e63c3560fe2c02fb0e'

git-subtree-dir: sapling-crypto
git-subtree-mainline: 9f748554d0
git-subtree-split: 21084bde20

sapling-crypto/src/lib.rs

@@ -0,0 +1,22 @@
+extern crate pairing;
+extern crate bellman;
+extern crate blake2_rfc;
+extern crate digest;
+extern crate rand;
+extern crate byteorder;
+
+#[cfg(test)]
+#[macro_use]
+extern crate hex_literal;
+
+#[cfg(test)]
+extern crate crypto;
+
+pub mod jubjub;
+pub mod group_hash;
+pub mod circuit;
+pub mod pedersen_hash;
+pub mod primitives;
+pub mod constants;
+pub mod redjubjub;
+pub mod util;