Java RSA中String的键
发布时间:2020-12-14 05:59:20 所属栏目:Java 来源:网络整理
导读:我在我的应用程序中使用RSA加密.要存储生成的公钥,我将其转换为String,然后将其保存在数据库中. Key publicKey=null; Key privateKey=null; KeyPair keyPair=RsaCrypto.getKeyPairRSA(1024); publicKey=keyPair.getPublic(); privateKey=keyPair.getPrivate(
我在我的应用程序中使用RSA加密.要存储生成的公钥,我将其转换为String,然后将其保存在数据库中.
Key publicKey=null; Key privateKey=null; KeyPair keyPair=RsaCrypto.getKeyPairRSA(1024); publicKey=keyPair.getPublic(); privateKey=keyPair.getPrivate(); String publicK=Base64.encodeToString(publicKey.getEncoded(),Base64.DEFAULT); String privateK=Base64.encodeToString(privateKey.getEncoded(),Base64.DEFAULT); 我保存了Strings publicK和privateK. public static String encrypt(Key publicKey,String inputText){ byte[]encodedBytes=null; String encryptedText=""; try { Cipher cipher=Cipher.getInstance("RSA"); cipher.init(Cipher.ENCRYPT_MODE,publicKey); encodedBytes=cipher.doFinal(inputText.getBytes()); } catch (Exception e) {Log.e("Error","RSA encryption error"); } encryptedText=Base64.encodeToString(encodedBytes,Base64.DEFAULT); return encryptedText; } 你有什么主意吗? 解决方法
要将publicK(String)转换为Public Key,请执行以下操作:
byte[] keyBytes = Base64.decode(publicK.getBytes("utf-8")); X509EncodedKeySpec spec = new X509EncodedKeySpec(keyBytes); KeyFactory keyFactory = KeyFactory.getInstance("RSA"); PublicKey key = keyFactory.generatePublic(spec); 要将privateK(String)转换为私钥,请执行以下操作: byte[] keyBytes = Base64.decode(privateK.getBytes("utf-8")); PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(keyBytes); KeyFactory fact = KeyFactory.getInstance("RSA"); PrivateKey priv = fact.generatePrivate(keySpec); (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |