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OpenSSL/Rsa-java-openssl

OpenSSL.Rsa-java-openssl History

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June 01, 2010, at 02:43 PM by 194.51.85.2 -

Added lines 1-3:

!! Pour chiffrer

Deleted lines 104-105:

Added lines 120-222:

!! Pour Signer

(:source lang=JAVA :)
import java.security.*;
import java.security.spec.*;

import org.apache.commons.codec.binary.Base64;

public final class RSAUtilsSign {

static public String PVK=
"MIICdgIBADANBgkqhkiG9w0BAQEFAASCAmAwggJcAgEAAoGBAJ+kB8MpkFt6YO84"+
"ZEu7ggnk6ECOhzeDL6rqg421nGqrzx37NeyhSZ/n0x+II91GBNMCuKH/x5VToPUG"+
"VG4i43ViBbEJFzsAyt0IGzU+fJkEkmTV/B6N9lPBwZvoyQPdnpRprn0PtbME4zMp"+
"sPIb/tFmrVRIyZKkl6zDvIB3acflAgMBAAECgYBYXd7iG/7JdEt1/7wc47VOrsQV"+
"ABA/HUHklR2u8ombznC+gtDNpFXxysxl1uErWdfPyeDT45bhxMIC/7b6pBtNfbhM"+
"Ig1Ej5ipD2Vr6+L5llHJZnYBFskFeCDcwdpV2/jlcz7h72YS5fOtcuUkA7UZ3Orz"+
"uiCY3Z3Qd5HhnRaGwQJBANHEZwWCilWHvfAPj1jr7tMF3fP/pJyoHDdwkj9YgCR5"+
"Hvhsx7b0UekTXUPMBUrFMORintSjKyx7ZUuu3ig4wnUCQQDC012+DBZJvha+zTii"+
"SUK5d7J4j8iOlkWzx7EZ015QGa9dHTr+YsJt0KTtQBXqz/J7EvLIrmkBjRwmyqZC"+
"6WGxAkA7p81cpclNlbMQqHwt37slzE9Y6uUXoD+WDK+q0DJxLPj/0X/iqgz5agZm"+
"F4mRwA6thNaCxnyqw9UE9xA7BBlZAkEAqXiTIq4A9USVJIP/r6tqj0q/xH/ORboS"+
"B8C9HWnvsF2nXaf/mSjvV/cWgAovBoK8urJQ3qBYVzEYO+YrmijJAQJAQrQBk7Bm"+
"mGWza8dn1SNATtmNXnSHOk1vWBQlnCZDla9BfpGLOhACRUttoTJObmrTdmRyr+h+"+
"MJpMBgE3IYK5Hg==";

static public String PUB=
"MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCfpAfDKZBbemDvOGRLu4IJ5OhA"+
"joc3gy+q6oONtZxqq88d+zXsoUmf59MfiCPdRgTTArih/8eVU6D1BlRuIuN1YgWx"+
"CRc7AMrdCBs1PnyZBJJk1fwejfZTwcGb6MkD3Z6Uaa59D7WzBOMzKbDyG/7RZq1U"+
"SMmSpJesw7yAd2nH5QIDAQAB";

public static void main(String[] args) {

System.out.println("input:\n" + TextStream);
boolean check;

Base64 base64 = new Base64();
System.out.println("input: " + TextStream);
byte[] Sign = sign(TextStream);
System.out.println("Signature:\n" + base64.encodeToString(Sign));
check = verify(TextStream,Sign);
System.out.println("check:\n" + check);
}

private static byte[] sign(String Buffer) {
try {
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PKCS8EncodedKeySpec privSpec = new PKCS8EncodedKeySpec(Base64.decodeBase64(PVK));
PrivateKey encryptionKey = keyFactory.generatePrivate(privSpec);

Signature instance = Signature.getInstance("SHA1withRSA");
instance.initSign(encryptionKey);
instance.update((Buffer).getBytes());
byte[] signature = instance.sign();
return signature;

} catch (Exception e) {
e.printStackTrace();
}
return null;
}

private static boolean verify(String buffer,byte[] passwordCrypte) {
try {
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
X509EncodedKeySpec pubSpec = new X509EncodedKeySpec(Base64.decodeBase64(PUB));
PublicKey decryptionKey = keyFactory.generatePublic(pubSpec);

Signature instance = Signature.getInstance("SHA1withRSA");
instance.initVerify(decryptionKey);
instance.update(buffer.getBytes());
return instance.verify(passwordCrypte) ? true : false;

} catch (Exception e) {
e.printStackTrace();
}
return false;
}
}

(:sourcend:)

%left bgcolor=#f0f0f0' padding=5px%@@'''C:\>javac RSAUtilsSign.java'''@@
\\
@@'''C:\>java RSAUtilsSign'''@@\\
@@input:@@\\
@@this is the input text@@\\
@@Signature:@@\\
@@l/mQPS04XmwMtqaBr0d46MJYMIDHUPeRzl8uXdDgrf9aXubFKu+UwlqES0NGs9QgrNS32RGtolUB@@\\
@@BN3LZtTshyrsi7RjY0bStrLdn0fLNVk14NONjGJio6NM5dPeJCNeW4u1QtPH9YnHznd2kR6LOQuZ@@\\
@@MowGQhvclB/WK68d4XY=@@\\
\\
@@check:@@\\
@@true@@\\

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June 01, 2010, at 02:31 PM by 194.51.85.2 -

Added lines 1-119:

%left bgcolor=#f0f0f0' padding=5px%@@'''C:\>openssl genrsa -out privateKey.pem 1024'''\\
Loading 'screen' into random state - done\\
Generating RSA private key, 1024 bit long modulus\\
...................++++++\\
....................++++++\\
e is 65537 (0x10001)\\
\\
'''C:\>openssl rsa -in privateKey.pem -out publicKey.key -pubout -outform der'''\\
writing RSA key\\
\\
'''C:\>openssl pkcs8 -in privateKey.pem -out privateKey.p8 -outform der -nocrypt -topk8'''@@

Les fichiers privateKey.p8 et publicKey.key transformés en Base64 deviennent respectivement les variables PVK et PUB du code ci-dessous.

(:source lang=JAVA :)
import java.security.*;
import java.security.spec.*;
import javax.crypto.Cipher;

import org.apache.commons.codec.binary.Base64;

public final class RSAUtilsCipher {

static public String PVK=
"MIICdgIBADANBgkqhkiG9w0BAQEFAASCAmAwggJcAgEAAoGBAJ+kB8MpkFt6YO84"+
"ZEu7ggnk6ECOhzeDL6rqg421nGqrzx37NeyhSZ/n0x+II91GBNMCuKH/x5VToPUG"+
"VG4i43ViBbEJFzsAyt0IGzU+fJkEkmTV/B6N9lPBwZvoyQPdnpRprn0PtbME4zMp"+
"sPIb/tFmrVRIyZKkl6zDvIB3acflAgMBAAECgYBYXd7iG/7JdEt1/7wc47VOrsQV"+
"ABA/HUHklR2u8ombznC+gtDNpFXxysxl1uErWdfPyeDT45bhxMIC/7b6pBtNfbhM"+
"Ig1Ej5ipD2Vr6+L5llHJZnYBFskFeCDcwdpV2/jlcz7h72YS5fOtcuUkA7UZ3Orz"+
"uiCY3Z3Qd5HhnRaGwQJBANHEZwWCilWHvfAPj1jr7tMF3fP/pJyoHDdwkj9YgCR5"+
"Hvhsx7b0UekTXUPMBUrFMORintSjKyx7ZUuu3ig4wnUCQQDC012+DBZJvha+zTii"+
"SUK5d7J4j8iOlkWzx7EZ015QGa9dHTr+YsJt0KTtQBXqz/J7EvLIrmkBjRwmyqZC"+
"6WGxAkA7p81cpclNlbMQqHwt37slzE9Y6uUXoD+WDK+q0DJxLPj/0X/iqgz5agZm"+
"F4mRwA6thNaCxnyqw9UE9xA7BBlZAkEAqXiTIq4A9USVJIP/r6tqj0q/xH/ORboS"+
"B8C9HWnvsF2nXaf/mSjvV/cWgAovBoK8urJQ3qBYVzEYO+YrmijJAQJAQrQBk7Bm"+
"mGWza8dn1SNATtmNXnSHOk1vWBQlnCZDla9BfpGLOhACRUttoTJObmrTdmRyr+h+"+
"MJpMBgE3IYK5Hg==";

static public String PUB=
"MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCfpAfDKZBbemDvOGRLu4IJ5OhA"+
"joc3gy+q6oONtZxqq88d+zXsoUmf59MfiCPdRgTTArih/8eVU6D1BlRuIuN1YgWx"+
"CRc7AMrdCBs1PnyZBJJk1fwejfZTwcGb6MkD3Z6Uaa59D7WzBOMzKbDyG/7RZq1U"+
"SMmSpJesw7yAd2nH5QIDAQAB";

public static void main(String[] args) {

String TextStream = "this is the input text";
byte[] Cipher;
Base64 base64 = new Base64();
System.out.println("input:\n" + TextStream);
Cipher = encrypt(TextStream);
System.out.println("cipher:\n" + base64.encodeToString(Cipher));
System.out.println("decrypt:\n" + decrypt(Cipher));
}

private static byte[] encrypt(String Buffer) {
try {
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
X509EncodedKeySpec pubSpec = new X509EncodedKeySpec(Base64.decodeBase64(PUB));
Key encryptionKey = keyFactory.generatePublic(pubSpec);

//PKCS8EncodedKeySpec privSpec = new PKCS8EncodedKeySpec(Base64.decodeBase64(PVK));
//Key encryptionKey = keyFactory.generatePrivate(privSpec);

Cipher rsa;
rsa = Cipher.getInstance("RSA");
rsa.init(Cipher.ENCRYPT_MODE, encryptionKey);
return rsa.doFinal(Buffer.getBytes());
} catch (Exception e) {
e.printStackTrace();
}
return null;
}

private static String decrypt(byte[] buffer) {
try {
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PKCS8EncodedKeySpec privSpec = new PKCS8EncodedKeySpec(Base64.decodeBase64(PVK));
Key decryptionKey = keyFactory.generatePrivate(privSpec);

//X509EncodedKeySpec pubSpec = new X509EncodedKeySpec(Base64.decodeBase64(PUB));
//Key decryptionKey = keyFactory.generatePublic(pubSpec);

Cipher rsa;
rsa = Cipher.getInstance("RSA");
rsa.init(Cipher.DECRYPT_MODE, decryptionKey);
byte[] utf8 = rsa.doFinal(buffer);
return new String(utf8, "UTF8");
} catch (Exception e) {
e.printStackTrace();
}
return null;
}

}

(:sourcend:)

%left bgcolor=#f0f0f0' padding=5px%@@'''C:\>javac RSAUtilsCipher.java'''@@
\\
@@'''C:\>java RSAUtilsCipher'''@@\\
@@input:@@\\
@@this is the input text@@\\
@@cipher:@@\\
@@Rk0Ihq0Ks6P46EIWrTCuL5SV1iq31Nnml7ovNAgKskQolvo7P35AVFMo6fDcvrguGg+aDOprCsjf@@\\
@@gZbvIstxRGl1xROHJc6IVu0tufSRrGv3H57hOyk/E4em6j3l5WV300GIL81ygek8csGRx3LGZyt1@@\\
@@4kp09p1uSoPkLtEwomU=@@\\
\\
@@decrypt:@@\\
@@this is the input text@@\\

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