crypto: split crypto move lib

crates/sui-framework/sources/crypto/bls12381.move

@@ -0,0 +1,26 @@
+// Copyright (c) 2022, Mysten Labs, Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+module sui::bls12381 {
+    friend sui::validator;
+
+    /// @param signature: A 48-bytes signature that is a point on the G1 subgroup
+    /// @param public_key: A 96-bytes public key that is a point on the G2 subgroup
+    /// @param msg: The message that we test the signature against.
+    ///
+    /// If the signature is a valid BLS12381 signature of the message and public key, return true.
+    /// Otherwise, return false.
+    public native fun bls12381_verify_g1_sig(signature: vector<u8>, public_key: vector<u8>, msg: vector<u8>): bool; 
+
+    /// @param signature: 32-byte signature that is a point on the Ed25519 elliptic curve.
+    /// @param public_key: 32-byte signature that is a point on the Ed25519 elliptic curve.
+    /// @param msg: The message that we test the signature against.
+    /// @param domain: The domain that the signature is tested again. We essentially prepend this to the message.
+    ///
+    /// If the signature is a valid Ed25519 signature of the message and public key, return true.
+    /// Otherwise, return false.
+    public(friend) fun bls12381_verify_with_domain(signature: vector<u8>, public_key: vector<u8>, msg: vector<u8>, domain: vector<u8>): bool {
+        std::vector::append(&mut domain, msg);
+        bls12381_verify_g1_sig(signature, public_key, domain)
+    }
+}

crates/sui-framework/sources/crypto/ecdsa.move

@@ -0,0 +1,37 @@
+// Copyright (c) 2022, Mysten Labs, Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+module sui::ecdsa {
+    /// @param signature: A 65-bytes signature in form (r, s, v) that is signed using 
+    /// Secp256k1. Reference implementation on signature generation using RFC6979: 
+    /// https://github.com/MystenLabs/narwhal/blob/5d6f6df8ccee94446ff88786c0dbbc98be7cfc09/crypto/src/secp256k1.rs
+    /// The accepted v values are {0, 1, 2, 3}.
+    /// 
+    /// @param hashed_msg: the hashed 32-bytes message. The message must be hashed instead 
+    /// of plain text to be secure.
+    /// 
+    /// If the signature is valid, return the corresponding recovered Secpk256k1 public 
+    /// key, otherwise throw error. This is similar to ecrecover in Ethereum, can only be 
+    /// applied to Secp256k1 signatures.
+    public native fun ecrecover(signature: vector<u8>, hashed_msg: vector<u8>): vector<u8>;
+
+    /// @param pubkey: A 33-bytes compressed public key, a prefix either 0x02 or 0x03 and a 256-bit integer.
+    /// 
+    /// If the compressed public key is valid, return the 65-bytes uncompressed public key,
+    /// otherwise throw error. 
+    public native fun decompress_pubkey(pubkey: vector<u8>): vector<u8>;
+
+    /// @param data: arbitrary bytes data to hash
+    /// Hash the input bytes using keccak256 and returns 32 bytes.
+    public native fun keccak256(data: vector<u8>): vector<u8>;
+
+    /// @param signature: A 65-bytes signature in form (r, s, v) that is signed using 
+    /// Secp256k1. Reference implementation on signature generation using RFC6979: 
+    /// https://github.com/MystenLabs/narwhal/blob/5d6f6df8ccee94446ff88786c0dbbc98be7cfc09/crypto/src/secp256k1.rs
+    /// 
+    /// @param public_key: The public key to verify the signature against
+    /// @param hashed_msg: The hashed 32-bytes message, same as what the signature is signed against.
+    /// 
+    /// If the signature is valid to the pubkey and hashed message, return true. Else false.
+    public native fun secp256k1_verify(signature: vector<u8>, public_key: vector<u8>, hashed_msg: vector<u8>): bool;
+}

crates/sui-framework/sources/crypto/ed25519.move

@@ -0,0 +1,26 @@
+// Copyright (c) 2022, Mysten Labs, Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+module sui::ed25519 {
+    friend sui::validator;
+    /// @param signature: 32-byte signature that is a point on the Ed25519 elliptic curve.
+    /// @param public_key: 32-byte signature that is a point on the Ed25519 elliptic curve.
+    /// @param msg: The message that we test the signature against.
+    /// 
+    /// If the signature is a valid Ed25519 signature of the message and public key, return true.
+    /// Otherwise, return false.
+    public(friend) native fun ed25519_verify(signature: vector<u8>, public_key: vector<u8>, msg: vector<u8>): bool;
+
+    /// @param signature: 32-byte signature that is a point on the Ed25519 elliptic curve.
+    /// @param public_key: 32-byte signature that is a point on the Ed25519 elliptic curve.
+    /// @param msg: The message that we test the signature against.
+    /// @param domain: The domain that the signature is tested again. We essentially prepend this to the message.
+    /// 
+    /// If the signature is a valid Ed25519 signature of the message and public key, return true.
+    /// Otherwise, return false.
+    public(friend) fun ed25519_verify_with_domain(signature: vector<u8>, public_key: vector<u8>, msg: vector<u8>, domain: vector<u8>): bool {
+        std::vector::append(&mut domain, msg);
+        ed25519_verify(signature, public_key, domain)
+    }
+
+}

crates/sui-framework/sources/crypto/range_proof.move

@@ -0,0 +1,18 @@
+// Copyright (c) 2022, Mysten Labs, Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+module sui::range_proof {
+    use sui::elliptic_curve::{Self as ec, RistrettoPoint};
+
+    /// Only bit_length = 64, 32, 16, 8 will work.
+    native fun native_verify_full_range_proof(proof: vector<u8>, commitment: vector<u8>, bit_length: u64);
+
+    /// @param proof: The bulletproof
+    /// @param commitment: The commitment which we are trying to verify the range proof for
+    /// @param bit_length: The bit length that we prove the committed value is whithin. Note that bit_length must be either 64, 32, 16, or 8.
+    /// 
+    /// If the range proof is valid, execution succeeds, else panics.
+    public fun verify_full_range_proof(proof: vector<u8>, commitment: RistrettoPoint, bit_length: u64) {
+        native_verify_full_range_proof(proof, ec::bytes(&commitment), bit_length)
+    }
+}

crates/sui-framework/sources/governance/validator.move

@@ -13,7 +13,7 @@ module sui::validator {
     use sui::stake::Stake;
     use sui::epoch_time_lock::EpochTimeLock;
     use std::option::Option;
-    use sui::crypto::Self;
+    use sui::bls12381::bls12381_verify_with_domain;
     use sui::staking_pool::{Self, Delegation, StakedSui, StakingPool};
 
     friend sui::genesis;
@@ -81,7 +81,7 @@ module sui::validator {
         let address_bytes = bcs::to_bytes(&sui_address);
         vector::append(&mut signed_bytes, address_bytes);
         assert!(
-            crypto::bls12381_verify_with_domain(proof_of_possession, pubkey_bytes, signed_bytes, PROOF_OF_POSSESSION_DOMAIN) == true,
+            bls12381_verify_with_domain(proof_of_possession, pubkey_bytes, signed_bytes, PROOF_OF_POSSESSION_DOMAIN) == true,
             0
         );
     }

crates/sui-framework/src/natives/mod.rs

@@ -27,20 +27,20 @@ pub fn all_natives(
     sui_framework_addr: AccountAddress,
 ) -> NativeFunctionTable {
     let sui_natives: &[(&str, &str, NativeFunction)] = &[
-        ("crypto", "ecrecover", make_native!(crypto::ecrecover)),
+        ("ecdsa", "ecrecover", make_native!(crypto::ecrecover)),
         (
-            "crypto",
+            "ecdsa",
             "decompress_pubkey",
             make_native!(crypto::decompress_pubkey),
         ),
-        ("crypto", "keccak256", make_native!(crypto::keccak256)),
+        ("ecdsa", "keccak256", make_native!(crypto::keccak256)),
         (
-            "crypto",
+            "ecdsa",
             "secp256k1_verify",
             make_native!(crypto::secp256k1_verify),
         ),
         (
-            "crypto",
+            "bls12381",
             "bls12381_verify_g1_sig",
             make_native!(crypto::bls12381_verify_g1_sig),
         ),
@@ -53,7 +53,7 @@ pub fn all_natives(
         ("object", "delete_impl", make_native!(object::delete_impl)),
         ("object", "borrow_uid", make_native!(object::borrow_uid)),
         (
-            "crypto",
+            "range_proof",
             "native_verify_full_range_proof",
             make_native!(crypto::verify_range_proof),
         ),
@@ -83,7 +83,7 @@ pub fn all_natives(
             make_native!(crypto::scalar_from_bytes),
         ),
         (
-            "crypto",
+            "ed25519",
             "ed25519_verify",
             make_native!(crypto::ed25519_verify),
         ),