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yzg-util
Commit 03bc58c5 authored by yanzg's avatar yanzg
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修改实体位置

parent 26394ccf
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Showing with 93 additions and 55 deletions
yzg-util-base/src/main/java/com/yanzuoguang/util/helper/RsaHelper.java
View file @ 03bc58c5
......@@ -37,18 +37,22 @@ public final class RsaHelper {
*
* @throws Exception
*/
public static void generatorKeyPair() throws Exception {
KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance(ALGORITHM_RSA);
keyPairGen.initialize(KEYPAIR_LEN);
KeyPair keyPair = keyPairGen.generateKeyPair();
RSAPublicKey rsaPublicKey = (RSAPublicKey) keyPair.getPublic();
byte[] keyBs = rsaPublicKey.getEncoded();
String publicKey = encodeBase64(keyBs);
logger.info("生成的公钥：\t{}", publicKey);
RSAPrivateKey rsaPrivateKey = (RSAPrivateKey) keyPair.getPrivate();
keyBs = rsaPrivateKey.getEncoded();
String privateKey = encodeBase64(keyBs);
logger.info("生成的私钥：\t{}", privateKey);
public static void generatorKeyPair() {
try {
KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance(ALGORITHM_RSA);
keyPairGen.initialize(KEYPAIR_LEN);
KeyPair keyPair = keyPairGen.generateKeyPair();
RSAPublicKey rsaPublicKey = (RSAPublicKey) keyPair.getPublic();
byte[] keyBs = rsaPublicKey.getEncoded();
String publicKey = encodeBase64(keyBs);
logger.info("生成的公钥：\t{}", publicKey);
RSAPrivateKey rsaPrivateKey = (RSAPrivateKey) keyPair.getPrivate();
keyBs = rsaPrivateKey.getEncoded();
String privateKey = encodeBase64(keyBs);
logger.info("生成的私钥：\t{}", privateKey);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
/**
......@@ -58,9 +62,13 @@ public final class RsaHelper {
* @throws Exception
*/
private static PublicKey getPublicKey(String publicKey) throws Exception {
X509EncodedKeySpec publicKeySpec = new X509EncodedKeySpec(decodeBase64(publicKey));
KeyFactory keyFactory = KeyFactory.getInstance(ALGORITHM_RSA);
return keyFactory.generatePublic(publicKeySpec);
try {
X509EncodedKeySpec publicKeySpec = new X509EncodedKeySpec(decodeBase64(publicKey));
KeyFactory keyFactory = KeyFactory.getInstance(ALGORITHM_RSA);
return keyFactory.generatePublic(publicKeySpec);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
/**
......@@ -69,10 +77,14 @@ public final class RsaHelper {
* @return
* @throws Exception
*/
private static PrivateKey getPrivateKey(String privateKey) throws Exception {
PKCS8EncodedKeySpec privateKeySpec = new PKCS8EncodedKeySpec(decodeBase64(privateKey));
KeyFactory keyFactory = KeyFactory.getInstance(ALGORITHM_RSA);
return keyFactory.generatePrivate(privateKeySpec);
private static PrivateKey getPrivateKey(String privateKey) {
try {
PKCS8EncodedKeySpec privateKeySpec = new PKCS8EncodedKeySpec(decodeBase64(privateKey));
KeyFactory keyFactory = KeyFactory.getInstance(ALGORITHM_RSA);
return keyFactory.generatePrivate(privateKeySpec);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
/**
......@@ -89,7 +101,8 @@ public final class RsaHelper {
Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
cipher.update(source.getBytes(SystemContants.UTF8));
String target = encodeBase64(cipher.doFinal());
byte[] bytes = cipher.doFinal();
String target = encodeBase64(bytes);
return target;
} catch (Exception ex) {
throw new RuntimeException(ex);
......@@ -102,12 +115,17 @@ public final class RsaHelper {
* @param target
* @throws Exception
*/
public static String decryptionByPublicKey(String target, String publicKeyStr) throws Exception {
PublicKey publicKey = getPublicKey(publicKeyStr);
Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, publicKey);
cipher.update(decodeBase64(target));
return new String(cipher.doFinal(), SystemContants.UTF8);
public static String decryptionByPublicKey(String target, String publicKeyStr) {
try {
byte[] bytes = decodeBase64(target);
PublicKey publicKey = getPublicKey(publicKeyStr);
Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm());
cipher.init(Cipher.DECRYPT_MODE, publicKey);
cipher.update(bytes);
return new String(cipher.doFinal(), SystemContants.UTF8);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
/**
......@@ -116,15 +134,19 @@ public final class RsaHelper {
* @return
* @throws Exception
*/
public static void verifyByPublicKey(String target, String sign, String publicKeyStr) throws Exception {
PublicKey publicKey = getPublicKey(publicKeyStr);
Signature signature = Signature.getInstance(ALGORITHM_SIGN);
signature.initVerify(publicKey);
signature.update(target.getBytes(SystemContants.UTF8));
if (signature.verify(decodeBase64(sign))) {
logger.info("sign true");
} else {
logger.info("sign false");
public static void verifyByPublicKey(String target, String sign, String publicKeyStr) {
try {
PublicKey publicKey = getPublicKey(publicKeyStr);
Signature signature = Signature.getInstance(ALGORITHM_SIGN);
signature.initVerify(publicKey);
signature.update(target.getBytes(SystemContants.UTF8));
if (signature.verify(decodeBase64(sign))) {
logger.info("sign true");
} else {
logger.info("sign false");
}
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
......@@ -135,13 +157,17 @@ public final class RsaHelper {
* @return
* @throws Exception
*/
public static String encryptionByPrivateKey(String source, String privateKeyStr) throws Exception {
PrivateKey privateKey = getPrivateKey(privateKeyStr);
Cipher cipher = Cipher.getInstance(privateKey.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, privateKey);
cipher.update(source.getBytes(SystemContants.UTF8));
String target = encodeBase64(cipher.doFinal());
return target;
public static String encryptionByPrivateKey(String source, String privateKeyStr) {
try {
PrivateKey privateKey = getPrivateKey(privateKeyStr);
Cipher cipher = Cipher.getInstance(privateKey.getAlgorithm());
cipher.init(Cipher.ENCRYPT_MODE, privateKey);
cipher.update(source.getBytes(SystemContants.UTF8));
String target = encodeBase64(cipher.doFinal());
return target;
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
/**
......@@ -169,13 +195,17 @@ public final class RsaHelper {
* @return
* @throws Exception
*/
public static String signByPrivateKey(String target, String privateKeyStr) throws Exception {
PrivateKey privateKey = getPrivateKey(privateKeyStr);
Signature signature = Signature.getInstance(ALGORITHM_SIGN);
signature.initSign(privateKey);
signature.update(target.getBytes(SystemContants.UTF8));
String sign = encodeBase64(signature.sign());
return sign;
public static String signByPrivateKey(String target, String privateKeyStr) {
try {
PrivateKey privateKey = getPrivateKey(privateKeyStr);
Signature signature = Signature.getInstance(ALGORITHM_SIGN);
signature.initSign(privateKey);
signature.update(target.getBytes(SystemContants.UTF8));
String sign = encodeBase64(signature.sign());
return sign;
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
/**
......@@ -185,9 +215,13 @@ public final class RsaHelper {
* @return
* @throws Exception
*/
private static String encodeBase64(byte[] source) throws Exception {
byte[] to = Base64Utils.encode(source);
return new String(to, SystemContants.UTF8);
private static String encodeBase64(byte[] source) {
try {
byte[] to = Base64Utils.encode(source);
return new String(to, SystemContants.UTF8);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
/**
......@@ -197,8 +231,12 @@ public final class RsaHelper {
* @return
* @throws Exception
*/
private static byte[] decodeBase64(String target) throws Exception {
byte[] from = target.getBytes(SystemContants.UTF8);
return Base64Utils.decode(from);
private static byte[] decodeBase64(String target) {
try {
byte[] from = target.getBytes(SystemContants.UTF8);
return Base64Utils.decode(from);
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
}
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