Research on a Shared Bicycle Deposit Management System Based on Blockchain Technology

Algorithm 2

Decryption code for private key and public key.

	//Decry the public key in pem format
	block, _ : = pem.Decode (publicKey)
	if block == nil {
	return nil, errors.New (“public key error”)
	}
	// Parsing the public key
	pubInterface, err : = x509.ParsePKIXPublicKey(block.Bytes)
	if err ! = nil {
	return nil, err
	}
	// Type discriminant
	pub : = pubInterface.(rsa.PublicKey)
	//Encryption
	return rsa.EncryptPKCS1v15 (rand.Reader, pub, origData)
	}
	// Decryption
	func RsaDecrypt (ciphertext []byte) ([]byte, error) {
	// Decryption
	block, _ : = pem.Decode (privateKey)
	if block == nil {
	return nil, errors.New (“private key error!”)
	}
	//Resolves the private key in PKCS1 format
	priv, err : = x509.ParsePKCS1PrivateKey (block.Bytes)
	if err ! = nil {
	return nil, err
	}
	// Decryption
	return rsa.DecryptPKCS1v15 (rand.Reader, priv, ciphertext)
	}