Refactored a lot of cryptography. Moved from "rust-crypto" to https://github.com/RustCrypto

Cargo.toml

@@ -14,8 +14,12 @@ getopts = "0.2.21"
 log = "0.4.14"
 simple_logger = "1.11.0"
 toml = "0.5.8"
-rust-crypto = "^0.2"
-blakeout = "0.1.0"
+digest = "0.9.0"
+sha2 = "0.9.3"
+ed25519-dalek = "1.0.1"
+signature = "1.3.0"
+#rust-crypto = "^0.2"
+blakeout = "0.3.0"
 num_cpus = "1.13.0"
 byteorder = "1.4.3"
 serde = { version = "1.0.123", features = ["derive"] }
@@ -24,6 +28,8 @@ num-bigint = "0.4.0"
 num-traits = "0.2.14"
 chrono = { version = "0.4.13", features = ["serde"] }
 rand = "0.8.3"
+# For ed25519-dalek
+rand-old = { package = "rand", version = "0.7.0" }
 sqlite = "0.25.3"
 uuid = { version = "0.8.2", features = ["serde", "v4"] }
 mio = { version = "0.7.10", features = ["os-poll", "net"] }