Bump version to 0.2

Author: numbcoder

README.md

@@ -30,13 +30,15 @@ $ gem install sm2-crypto
 
 ## Usage
 
+### Encrypt and Decrypt
+
 ```ruby
 require 'sm2_crypto'
 
 # Generate key pair
 keypair = OpenSSL::PKey::EC.generate("SM2")
 private_key = keypair.private_key.to_s(2)
-public_key = keypair.public_key.to_bn.to_s(2)
+public_key = keypair.public_key.to_octet_string(:uncompressed)
 
 # Encrypt data
 message = "Hello, SM2 encryption!"
@@ -48,6 +50,28 @@ decrypted_message = SM2Crypto.decrypt(private_key, encrypted_data)
 puts "Decrypted message: #{decrypted_message}"
 ```
 
+### Sign and Verify
+
+```ruby
+message = "Hello, SM2 signature!"
+# get signatrue
+sign = SM2Crypto.sign(private_key, message)
+# verify signatrue
+SM2Crypto.verify(public_key, message, sign)
+
+user_id = "31323334353637383132333435363738" # user_id should be a hex string
+# sign with hash and user_id
+sign = SM2Crypto.sign(private_key, message, sm3_hash: true, user_id: user_id)
+# verify with hash and user_id
+SM2Crypto.verify(public_key, message, sign, sm3_hash: true, user_id: user_id)
+```
+
+### Get Public Key from Private Key
+
+```ruby
+public_key = SM2Crypto.get_public_key(private_key)
+```
+
 ## Contributing
 
 Contributions to the project are welcome. Please fork the repository, create a feature branch, and submit a pull request. Be sure to add tests and update documentation as needed.

sm2-crypto.gemspec

@@ -2,7 +2,7 @@
 
 Gem::Specification.new do |spec|
   spec.name = "sm2-crypto"
-  spec.version = "0.1"
+  spec.version = "0.2"
   spec.authors = ["Seekr"]
   spec.email = ["[email protected]"]
 

test/test_sm2_crypto.rb

@@ -49,7 +49,7 @@ def test_encrypt_and_decrypt_with_padding
   def test_generate_keypairs
     keypair = OpenSSL::PKey::EC.generate("SM2")
     private_key = keypair.private_key.to_s(2)
-    public_key = keypair.public_key.to_bn.to_s(2)
+    public_key = keypair.public_key.to_octet_string(:uncompressed)
 
     msg = SecureRandom.random_bytes(rand(10..100))
     encrypted_data = SM2Crypto.encrypt(public_key, msg)