LNP/BP identity protocols implementation

.github/workflows/build.yml

@@ -68,7 +68,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        toolchain: [ nightly, beta, stable ]
+        toolchain: [ nightly, beta, stable, 1.59.0 ]
     steps:
       - uses: actions/checkout@v2
       - name: Install rust ${{ matrix.toolchain }}
@@ -81,24 +81,6 @@ jobs:
         with:
           command: check
           args: --workspace --all-targets --all-features
-  toolchains-old:
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        toolchain: [ 1.51.0 ]
-    steps:
-      - uses: actions/checkout@v2
-      - name: Install rust ${{ matrix.toolchain }}
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: ${{ matrix.toolchain }}
-          override: true
-      - name: All features
-        uses: actions-rs/cargo@v1
-        with:
-          command: check
-          args: --workspace --all-targets --features all_msrv47
   dependency:
     runs-on: ubuntu-latest
     steps:

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "lnpbp"
-version = "0.9.0-alpha.1"
+version = "0.9.0-alpha.2"
 license = "MIT"
 authors = ["Dr. Maxim Orlovsky <[email protected]>"]
 description = "LNP/BP Core Library implementing LNPBP specifications & standards"
@@ -24,28 +24,31 @@ required-features = ["cli"]
 
 [dependencies]
 amplify = { version = "3.13.0", features = ["stringly_conversions", "std"] }
+strict_encoding = "2.0.0-alpha.2"
 lnpbp_bech32 = { version = "0.9.0-alpha.1", path = "bech32" }
 lnpbp_chain = { version = "0.9.0-alpha.1", path = "chain" }
 lnpbp_elgamal = { version = "0.9.0", path = "elgamal", optional = true }
+lnpbp_identity = { version = "0.9.0-beta.1", path = "identity", optional = true }
 serde_crate = { package = "serde", version = "1", features = ["derive"], optional = true }
 serde_with = { version = "1.8", features = ["hex"], optional = true }
 # serde_with_macros = { version = "~1.2.0", optional = true } # Fix for the problem in 1.3.0
-clap = { version = "~3.1.18", features = ["derive"], optional = true }
-serde_yaml = { version = "0.9", optional = true }
-serde_json = { version = "1", optional = true }
+clap = { version = "~3.1.18", features = ["derive"], optional = true } # Used by cli only
+serde_yaml = { version = "0.9", optional = true } # Used by cli only
+serde_json = { version = "1", optional = true } # Used by cli only
 base64-compat = { version = "1", optional = true } # Used by cli only
 base58 = { version = "0.2", optional = true } # Used by cli only
+colorize = { version = "0.1.0", optional = true } # Used by cli only
 
 [features]
 default = ["zip"]
-all = ["serde", "elgamal", "zip", "cli"]
-cli = ["clap", "serde", "base64-compat", "base58", "serde_yaml", "serde_json", "amplify/hex"]
+all = ["serde", "elgamal", "identity", "zip", "cli"]
+cli = ["clap", "serde", "identity", "base64-compat", "base58", "serde_yaml", "serde_json", "amplify/hex", "colorize"]
 serde = ["serde_crate", "serde_with", "amplify/serde",
          "lnpbp_bech32/serde", "lnpbp_chain/serde"]
+identity = ["lnpbp_identity"]
 elgamal = ["lnpbp_elgamal"] # Provides ElGamal encryption module from this library
 zip = ["lnpbp_bech32/zip"]
-all_msrv47 = ["serde", "elgamal", "zip"] # Used in testing against MSRV 1.47
 
 [workspace]
-members = [".", "bech32", "chain", "elgamal"]
-default-members = [".", "bech32", "chain", "elgamal"]
+members = [".", "bech32", "chain", "elgamal", "identity"]
+default-members = [".", "bech32", "chain", "elgamal", "identity"]

README.md

@@ -60,7 +60,7 @@ The development of the libraries is supported by LNP/BP Standards Association.
 
 ### Clone and compile library
 
-Minimum supported rust compiler version (MSRV): 1.51.0 (if command-line tool is not used) and 1.54.0 (otherwise).
+Minimum supported rust compiler version (MSRV): 1.59.0.
 
 ```shell script
 git clone https://github.com/lnp-bp/rust-lnpbp

chain/src/lib.rs

@@ -207,9 +207,7 @@ hash_newtype!(
 );
 
 impl Default for AssetId {
-    fn default() -> Self {
-        AssetId::from_inner([0u8; 32])
-    }
+    fn default() -> Self { AssetId::from_inner([0u8; 32]) }
 }
 
 impl strict_encoding::Strategy for AssetId {

elgamal/src/lib.rs

@@ -79,7 +79,8 @@ pub fn encrypt<C: Signing + Verification>(
     let mut hash = sha256::Hash::hash(&encryption_key.serialize());
 
     // Tweaking the encryption key with the blinding factor
-    let tweak = Scalar::from_be_bytes(blinding_key.secret_bytes()).expect("negligible probability");
+    let tweak = Scalar::from_be_bytes(blinding_key.secret_bytes())
+        .expect("negligible probability");
     encryption_key = encryption_key.add_exp_tweak(context, &tweak)?;
 
     // Pad the message to the round number of 30-byte chunks with the generated
@@ -152,7 +153,8 @@ pub fn decrypt<C: Verification>(
     }
 
     // Tweak the encryption key with the blinding factor
-    let tweak = Scalar::from_be_bytes(decryption_key.secret_bytes()).expect("negligible probability");
+    let tweak = Scalar::from_be_bytes(decryption_key.secret_bytes())
+        .expect("negligible probability");
     unblinding_key = unblinding_key.add_exp_tweak(context, &tweak)?;
     let encryption_key = unblinding_key;
 
@@ -237,8 +239,10 @@ mod test {
 
         let uk = unblinding_key.clone();
         let ek = encryption_key.clone();
-        let tweak1 = Scalar::from_be_bytes(blinding_key.secret_bytes()).unwrap();
-        let tweak2 = Scalar::from_be_bytes(decryption_key.secret_bytes()).unwrap();
+        let tweak1 =
+            Scalar::from_be_bytes(blinding_key.secret_bytes()).unwrap();
+        let tweak2 =
+            Scalar::from_be_bytes(decryption_key.secret_bytes()).unwrap();
         assert_eq!(
             ek.add_exp_tweak(&SECP256K1, &tweak1).unwrap(),
             uk.add_exp_tweak(&SECP256K1, &tweak2).unwrap()

identity/Cargo.toml

@@ -0,0 +1,22 @@
+[package]
+name = "lnpbp_identity"
+version = "0.9.0-beta.1"
+license = "MIT"
+authors = ["Dr. Maxim Orlovsky <[email protected]>"]
+description = "LNP/BP identity standards implementation"
+repository = "https://github.com/LNP-BP/rust-lnpbp"
+homepage = "https://github.com/LNP-BP/rust-lnpbp/tree/master/identity"
+keywords = ["bitcoin", "lnp-bp", "identity", "ed25519", "secp256k1"]
+categories = ["cryptography"]
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+amplify = "4.0.0-alpha.1"
+secp256k1 = { version = "0.24.1", features = ["global-context", "rand-std"] }
+strict_encoding = "2.0.0-alpha.2"
+bech32 = "0.9.1"
+crc32fast = "1.3.2"
+mnemonic = "1.0.1"
+bitcoin_hashes = "0.11.0"