Add decrypt feature

Cargo.toml

@@ -28,29 +28,29 @@ thiserror          = { version = "1.0" }
 tokio              = { version = "1.34" }
 tracing            = { version = "0.1" }
 # hack-ink
-subcryptor     = { version = "0.10" }
-subhasher      = { version = "0.10" }
-submetadatan   = { version = "0.10" }
-subrpcer       = { version = "0.10" }
-subruntimer    = { version = "0.10" }
-subspector     = { version = "0.10" }
-substorager    = { version = "0.10" }
-subversioner   = { version = "0.10" }
+subcryptor   = { version = "0.10", git = "https://github.com/hack-ink/substrate-minimal" }
+subhasher    = { version = "0.10", git = "https://github.com/hack-ink/substrate-minimal" }
+submetadatan = { version = "0.10", git = "https://github.com/hack-ink/substrate-minimal" }
+subrpcer     = { version = "0.10", git = "https://github.com/hack-ink/substrate-minimal" }
+subruntimer  = { version = "0.10", git = "https://github.com/hack-ink/substrate-minimal" }
+subspector   = { version = "0.10", git = "https://github.com/hack-ink/substrate-minimal" }
+substorager  = { version = "0.10", git = "https://github.com/hack-ink/substrate-minimal" }
+subversioner = { version = "0.10", git = "https://github.com/hack-ink/substrate-minimal" }
 # subalfred
 cmd-impl       = { version = "0.9", path = "bin/subalfred/src/command/impl" }
 subalfred-core = { version = "0.9", path = "lib/core" }
 subalfred-util = { version = "0.9", path = "lib/util" }
 
-# [patch.crates-io]
-# hack-ink
-# subcryptor     = { path = "../substrate-minimal/subcryptor" }
-# subhasher      = { path = "../substrate-minimal/subhasher" }
-# submetadatan   = { path = "../substrate-minimal/submetadatan" }
-# subrpcer       = { path = "../substrate-minimal/subrpcer" }
-# subruntimer    = { path = "../substrate-minimal/subruntimer" }
-# subspector     = { path = "../substrate-minimal/subspector" }
-# substorager    = { path = "../substrate-minimal/substorager" }
-# subversioner   = { path = "../substrate-minimal/subversioner" }
+# [patch.'https://github.com/hack-ink/substrate-minimal']
+# # hack-ink
+# subcryptor   = { path = "../substrate-minimal/subcryptor" }
+# subhasher    = { path = "../substrate-minimal/subhasher" }
+# submetadatan = { path = "../substrate-minimal/submetadatan" }
+# subrpcer     = { path = "../substrate-minimal/subrpcer" }
+# subruntimer  = { path = "../substrate-minimal/subruntimer" }
+# subspector   = { path = "../substrate-minimal/subspector" }
+# substorager  = { path = "../substrate-minimal/substorager" }
+# subversioner = { path = "../substrate-minimal/subversioner" }
 
 [profile.ci-dev]
 incremental = false

bin/subalfred/Cargo.toml

@@ -22,14 +22,15 @@ anyhow             = { version = "1.0" }
 array-bytes        = { workspace = true }
 clap               = { workspace = true, features = ["cargo", "derive", "wrap_help"] }
 color-eyre         = { version = "0.6" }
+rpassword          = { version = "7.3" }
 serde_json         = { workspace = true }
 tokio              = { workspace = true, features = ["macros", "rt-multi-thread"] }
 tracing-subscriber = { version = "0.3" }
 unescaper          = { version = "0.1" }
 # hack-ink
-subhasher      = { workspace = true }
-subrpcer       = { workspace = true }
-substorager    = { workspace = true }
+subhasher   = { workspace = true }
+subrpcer    = { workspace = true }
+substorager = { workspace = true }
 # subalfred
 cmd-impl       = { workspace = true }
 subalfred-core = { workspace = true, features = ["clap"] }

bin/subalfred/src/command.rs

@@ -6,6 +6,9 @@ use check::CheckCmd;
 mod convert;
 use convert::ConvertCmd;
 
+mod decrypt;
+use decrypt::DecryptCmd;
+
 mod get;
 use get::GetCmd;
 
@@ -37,6 +40,7 @@ pub(crate) enum Cmd {
 	Check,
 	#[command(subcommand)]
 	Convert,
+	Decrypt,
 	#[command(subcommand)]
 	Get,
 	Hash,

bin/subalfred/src/command/decrypt.rs

@@ -0,0 +1,33 @@
+// std
+use std::path::PathBuf;
+// crates.io
+use clap::Args;
+// subalfred
+use crate::prelude::*;
+use subalfred_core::{key::KeystoreJson, system};
+
+/// Calculate the storage key of the storage item.
+#[derive(Debug, Args)]
+pub(crate) struct DecryptCmd {
+	/// Path to the JSON keystore file.
+	#[arg(value_name = "PATH")]
+	path: PathBuf,
+}
+impl DecryptCmd {
+	pub(crate) fn run(&self) -> Result<()> {
+		let Self { path } = self;
+		let keystore = system::read_file_to_struct::<_, KeystoreJson>(path)?;
+
+		loop {
+			let password = rpassword::prompt_password("Keystore password:")?;
+
+			if let Ok(secret_key) = keystore.decrypt(&password) {
+				println!("{}", array_bytes::bytes2hex("0x", secret_key));
+
+				return Ok(());
+			} else {
+				println!("Wrong password!");
+			}
+		}
+	}
+}

lib/core/src/error/mod.rs

@@ -9,6 +9,9 @@ pub enum Error {
 	#[error(transparent)]
 	Quick(#[from] Quick),
 
+	#[error(transparent)]
+	Subcryptor(#[from] subcryptor::Error),
+
 	#[error(transparent)]
 	Cargo(#[from] Cargo),
 	#[error(transparent)]

lib/core/src/key/keystore.rs

@@ -0,0 +1,45 @@
+// crates.io
+use serde::Deserialize;
+// subalfred
+use crate::prelude::*;
+use subcryptor::constant::SECRET_KEY_LEN;
+
+/// JSON keystore structure.
+#[allow(missing_docs)]
+#[derive(Debug, Deserialize)]
+pub struct KeystoreJson {
+	pub encoded: String,
+	pub encoding: Encoding,
+}
+impl KeystoreJson {
+	/// Decrypt the keystore.
+	pub fn decrypt(&self, passphrase: &str) -> Result<[u8; SECRET_KEY_LEN]> {
+		Ok(subcryptor::decrypt_keystore(
+			passphrase.as_bytes(),
+			&subcryptor::base64_decode(&self.encoded)?,
+			&self.encoding.r#type,
+		)?)
+	}
+}
+#[test]
+fn decrypt_should_work() {
+	let alice_keystore = r#"{"encoded":"paO3SvbXf/ktnJwuxB5Jn3L5Yxrv9JPhOLA4dplOFu8AgAAAAQAAAAgAAACuIZoAe4sfEiV55sUsZaGq9cCwddaqYdBE7rMSfZfYd7kjgw5YUIo7QB6e+PVY+q6Du8uRSxOOjR5++LTEavlppjbkEce38/MrsDmrKccUqxu+hjv8Rt/RK77btcSuWDm6CA5bgX3y2lKeYqJEidMbP68dSKEN8uOoEdOuCdAFCH1BHCKPhOcu80RNcQ9puZDqZdLoPxc7QDlF9LS5","encoding":{"content":["pkcs8","sr25519"],"type":["scrypt","xsalsa20-poly1305"],"version":"3"},"address":"5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY","meta":{"genesisHash":"","name":"Alice","whenCreated":1701855108366}}"#;
+	let alice_secret_key = "0x98319d4ff8a9508c4bb0cf0b5a78d760a0b2082c02775e6e82370816fedfff48925a225d97aa00682d6a59b95b18780c10d7032336e88f3442b42361f4a66011";
+
+	assert_eq!(
+		array_bytes::bytes2hex(
+			"0x",
+			serde_json::from_str::<KeystoreJson>(alice_keystore)
+				.unwrap()
+				.decrypt("456123")
+				.unwrap()
+		),
+		alice_secret_key
+	);
+}
+/// JSON keystore encoding structure.
+#[allow(missing_docs)]
+#[derive(Debug, Deserialize)]
+pub struct Encoding {
+	pub r#type: Vec<String>,
+}

lib/core/src/key/mod.rs

@@ -1,4 +1,7 @@
-//! Subalfred core key library.
+//! Subalfred's core key library.
+
+mod keystore;
+pub use keystore::*;
 
 // std
 use std::{