RSA密钥对使用充气城堡生成。制作code从java程序可运行 [英] RSA key pairs generating using bouncy castle. Making code runnable from java program
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问题描述
我使用Java code，我发现，生成一个公共和通过充气城堡库中的私钥。我的问题是实现它为code。通过我的Android设备运行的。像我是编程，并通过我的大部分故障排除我的code不显示RSA密钥我仍然无法让我的code照我问，虽然我没有得到任何错误。我怀疑是我把我所有的code进入方式尝试 / 抓块，但我不能真的确定。
编辑：在低code
这是生成的RSA公钥和私钥的Java类。 （它的工作原理）
公共类ClassMain {
公共静态无效的主要（字串[] args）抛出异常{
串ST =Ebenezersawesome;
字节[] =明文ST.getBytes（UTF8）;
//生成RSA密钥
的System.out.println（\\ n开始生成RSA密钥）;
KeyPairGenerator的注册机= KeyPairGenerator.getInstance（RSA）;
keyGen.initialize（4096）;
密钥对键= keyGen.generateKeyPair（）;
的System.out.println（说完产生RSA密钥）;
//
//创建一个RSA Cipher对象（指定算法，模式，
//填充）。
密码加密= Cipher.getInstance（RSA / ECB / PKCS1Padding）;
//
//打印提供商信息
的System.out.println（\\ n+ cipher.getProvider（）的getInfo（））;
的System.out.println（\\ n开始加密）;
//
//初始化Cipher对象。
cipher.init（Cipher.ENCRYPT_MODE，key.getPublic（））;
//
//使用公共密钥加密明文
字节[] =密文cipher.doFinal（明文）;
的System.out.println（完成加密：）;
的System.out.println（新的String（密文UTF8））;
的System.out.println（\\ n开始解密）;
//
//初始化Cipher对象。
cipher.init（Cipher.DECRYPT_MODE，key.getPrivate（））;
//
//使用私钥解密密文
字节[] = newPlainText cipher.doFinal（密文）;
的System.out.println（完成解密：）;
的System.out.println（新的String（newPlainTextUTF8））;
}
}
这是我尝试在Android应用程序，以显示code尝试。
编辑：在code ++工程，但由于某种原因，我的try / catch停止，并且不产生TV3 code
TextView的TV1;
TextView中TV2;
TextView的TV3;
按钮转换;
字符串publicKeyFilename = NULL;
字符串privateKeyFilename = NULL;
串ST =Ebenezersawesome; @覆盖公共无效的onCreate（捆绑savedInstanceState）
{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.main）;
Log.d（EBZ，制造它的onCreate）;
TV1 =（的TextView）findViewById（R.id.tv1）;
TV2 =（的TextView）findViewById（R.id.tv2）;
TV3 =（的TextView）findViewById（R.id.tv3）;
转换=（按钮）findViewById（R.id.button1）; // tv2.setText（ST）;
convert.setOnClickListener（新OnClickListener（）{
公共无效的onClick（视图v）{
Log.d（EBZ，制造它的onCreate）;
尝试{
字节[] =明文ST.getBytes（UTF8）;
Log.d（EBZ，去到try块）;
KeyPairGenerator的注册机=的KeyPairGenerator
.getInstance（RSA）;
keyGen.initialize（2048）;
密钥对键= keyGen.generateKeyPair（）;
密码加密= Cipher.getInstance（RSA / ECB / PKCS1Padding）;
tv1.setText（。cipher.getProvider（）的getInfo（）的toString（））;
Log.d（EBZ，制造它通过TV1）;
//tv1.setText(ST）;
cipher.init（Cipher.ENCRYPT_MODE，key.getPublic（））;
字节[] =密文cipher.doFinal（明文）;
tv2.setText（。新的String（密文UTF8）的toString（））;
Log.d（EBZ，制造它通过TV2）;
// tv2.setText（ST）;
字节[] = newPlainText cipher.doFinal（密文）;
//tv3.setText(new字符串（newPlainTextUTF8）的toString（））;
// tv3.setText（ST）;
Log.d（EBZ，制造它通过TV3）;
}赶上（例外五）{
的System.out.println（错误）;
}
}
}）;
}
解决方案
好吧尝试以下code，而不是你，看到你的的try / catch 块里面发生了什么。
TextView的TV1;
TextView中TV2;
TextView的TV3;
按钮转换;
字符串publicKeyFilename = NULL;
字符串privateKeyFilename = NULL;
串ST =Ebenezersawesome;@覆盖公共无效的onCreate（捆绑savedInstanceState）
{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.main）;
Log.d（EBZ，制造它的onCreate）;
TV1 =（的TextView）findViewById（R.id.tv1）;
TV2 =（的TextView）findViewById（R.id.tv2）;
TV3 =（的TextView）findViewById（R.id.tv3）;
转换=（按钮）findViewById（R.id.button1）; 尝试{
字节[] =明文ST.getBytes（UTF8）;
Log.d（EBZ，去到try块）;
注册机的KeyPairGenerator =
KeyPairGenerator.getInstance（RSA）;
keyGen.initialize（4096）;
密钥对键= keyGen.generateKeyPair（）;
密码加密=
Cipher.getInstance（RSA / ECB / PKCS1Padding）;
tv3.setText（。cipher.getProvider（）的getInfo（）的toString（））;
//tv3.setText(ST）;
cipher.init（Cipher.ENCRYPT_MODE，key.getPublic（））;
字节[] =密文cipher.doFinal（明文）;
tv1.setText（。新的String（密文UTF8）的toString（））;
//tv1.setText(ST）;
字节[] = newPlainText cipher.doFinal（密文）;
tv2.setText（。新的String（newPlainTextUTF8）的toString（））;
//tv2.setText(ST）;
}赶上（例外五）{
的System.out.println（错误）;
}
// tv2.setText（ST）;
convert.setOnClickListener（新OnClickListener（）{
公共无效的onClick（视图v）{
Log.d（EBZ，制造它的onCreate）;
}
}）;
}
I am using a Java code that I found that generates a public and a private key via the bouncy castle library. My problem is implementing it into code runnable by my android device. My code does not display the RSA keys like I programmed it to and through most of my troubleshooting I am still unable to make my code do as I ask, although I get no errors. My suspicion is the way I put all of my code into a try/catch block but I am not really sure.
Edit: Lower in code
This is the Java class that generates the RSA public and private key. (It works)
public class ClassMain {
public static void main(String[]args) throws Exception {
String ST = "Ebenezersawesome";
byte[] plainText = "ST".getBytes("UTF8");
// Generating RSA Key
System.out.println("\nStart generating RSA key");
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
keyGen.initialize(4096);
KeyPair key = keyGen.generateKeyPair();
System.out.println("Finish generating RSA key");
//
// Creates an RSA Cipher object (specifying the algorithm, mode, and
// padding).
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
//
// Print the provider information
System.out.println("\n" + cipher.getProvider().getInfo());
System.out.println("\nStart encryption");
//
// Initializes the Cipher object.
cipher.init(Cipher.ENCRYPT_MODE, key.getPublic());
//
// Encrypt the plaintext using the public key
byte[] cipherText = cipher.doFinal(plainText);
System.out.println("Finish encryption: ");
System.out.println(new String(cipherText, "UTF8"));
System.out.println("\nStart decryption");
//
// Initializes the Cipher object.
cipher.init(Cipher.DECRYPT_MODE, key.getPrivate());
//
// Decrypt the ciphertext using the private key
byte[] newPlainText = cipher.doFinal(cipherText);
System.out.println("Finish decryption: ");
System.out.println(new String(newPlainText, "UTF8"));
}
}
This is my attempt at trying to display the code in an android application. Edit: The code works but for some reason my try/catch stops and does not generate code in tv3.
TextView tv1;
TextView tv2;
TextView tv3;
Button convert;
String publicKeyFilename = null;
String privateKeyFilename = null;
String ST = "Ebenezersawesome";
@Override public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Log.d("Ebz", "Made it to onCreate");
tv1 = (TextView) findViewById(R.id.tv1);
tv2 = (TextView) findViewById(R.id.tv2);
tv3 = (TextView) findViewById(R.id.tv3);
convert = (Button) findViewById(R.id.button1);
// tv2.setText(ST);
convert.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Log.d("Ebz", "Made it to onCreate");
try {
byte[] plainText = "ST".getBytes("UTF8");
Log.d("Ebz", "made it to Try Block");
KeyPairGenerator keyGen = KeyPairGenerator
.getInstance("RSA");
keyGen.initialize(2048);
KeyPair key = keyGen.generateKeyPair();
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
tv1.setText(cipher.getProvider().getInfo().toString());
Log.d("Ebz", "Made it passed tv1");
//tv1.setText(ST);
cipher.init(Cipher.ENCRYPT_MODE, key.getPublic());
byte[] cipherText = cipher.doFinal(plainText);
tv2.setText(new String(cipherText, "UTF8").toString());
Log.d("Ebz", "Made it passed tv2");
// tv2.setText(ST);
byte[] newPlainText = cipher.doFinal(cipherText);
//tv3.setText(new String(newPlainText, "UTF8").toString());
// tv3.setText(ST);
Log.d("Ebz", "Made it passed tv3");
} catch (Exception e) {
System.out.println("error");
}
}
});
}
解决方案
Ok try following code instead yours and see what happens inside your try/catch block.
TextView tv1;
TextView tv2;
TextView tv3;
Button convert;
String publicKeyFilename = null;
String privateKeyFilename = null;
String ST = "Ebenezersawesome";
@Override public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Log.d("Ebz", "Made it to onCreate");
tv1 = (TextView) findViewById(R.id.tv1);
tv2 = (TextView) findViewById(R.id.tv2);
tv3 = (TextView) findViewById(R.id.tv3);
convert = (Button) findViewById(R.id.button1);
try {
byte[]plainText = "ST".getBytes("UTF8");
Log.d("Ebz", "made it to Try Block");
KeyPairGenerator keyGen =
KeyPairGenerator.getInstance("RSA");
keyGen.initialize(4096);
KeyPair key = keyGen.generateKeyPair();
Cipher cipher =
Cipher.getInstance("RSA/ECB/PKCS1Padding");
tv3.setText(cipher.getProvider().getInfo().toString());
//tv3.setText(ST);
cipher.init(Cipher.ENCRYPT_MODE, key.getPublic());
byte[]cipherText = cipher.doFinal(plainText);
tv1.setText(new String(cipherText, "UTF8").toString());
//tv1.setText(ST);
byte[]newPlainText = cipher.doFinal(cipherText);
tv2.setText(new String(newPlainText, "UTF8").toString());
//tv2.setText(ST);
} catch(Exception e) {
System.out.println("error");
}
// tv2.setText(ST);
convert.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Log.d("Ebz", "Made it to onCreate");
}
});
}
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