1. First you must have a pair of public key, private key; "' Pubkeystr =" migfma0gcsqgsib3dqebaquaa4gnadcbiqkbgqc1gr+rifylanunlifsk/ knb54nqrcrtrmodujtwkpqklo4pnyj2stmrywetefxocftct/7ixturu2rggjkiolyc3144h0djkdtpxw9+ Mfyw1vwwvtfoisuektebz1tshghecdevvq6qlsqukilaezabiwfee30tq6g979x6yxhnqidaqab ";p rikeystr =" Miiceqibadanbgkqhkig9w0baqefaascammwggjfageaaogbalwcv6sh9ivo1q0uiwwr8qdvnidcsjfnew526npcsmooujik1ipzk2avjyrn4xe4iw0k3 /ulfnsttzeyaoqg6vglfxjihr0koo09fd36yxjbvxba+1+ ijjr4pmrvpw1iecerx0s9wrqqvjc6sisarlpulb8qtfrndqd3v1fphegdagmbaaecgyearmr1w3zfcxoxpvitjuuv589akl/ rs7temygomdqzrel1cplczrxinsmvq3otlzja5genncpx2eyunl7ydf+t2wgcvpplm+turbnti9gkywlxiwpuwou8ozolhatuqqulfnjtz+ 6cyjha3s4xnrjaevvs8xgy6/uajwxupm/dqaecqqdlw9lporwaavfuzqftvtwhtjhvmbz/aeuxcmmmf2kbgaujbxjuvhve5rzw9/ 6tqowinuk4j/uolcfl3vttepgzakeaypggjwgyq3uz0kx8yschv/ guza56l5grofmripiek4uvt2jm1kqgiq9t9pionv7dz7burk2gxi3glgeuhdr2jqjbajpaypz7qmbfdnkdosyoqztdegcr+ fqj3azrq0m3knr4gy0nlz8jw4qgjmkdcjmvkhdh+dae1ywzx7icmof6hgkcqqcto+ Lkiivx7growahi5j5lbvtwbqcyepbhbx8z5z8pj1mwwxxdbmtk4gc9momw1qwwqg9bdiqvfgw+2n2bv5xbakeahuaidfoywrib3vuzwtqeilvfqxhd8a9acelltgijk8wiu9gngifkwuvoveoq0gcftvqwo5tlac+ oedhccimlyq== ";"
The generation method is slightly;
2. JS Encryption * Gets the public keyexponent/modulus for use in JS"' Publickey.getpublicexponent (). ToString ();p ublickey.getmodulus (). ToString (16); ' * ' * Dependent package address http:// www.ohdave.com/rsa/introduction of dependent files "var rsa_m =" b582bfab21f62568d50d2e216c2bf2a76f9e2742b0914d130e76e8d3c24a6a28ba38a4d623d92b66af25844de17138216d0adffb8b14d4ad4d911868e 420e9580b7d78e21d1d24a0ed3d7c3dfa61725b55705afb5fa2249478a4c46f3d6d48782111c744bd5abaaa5490ba488b00465a6e2c1f104df44d0ea0 f7bf57e985e19d "; var rsa_e = "10001"; Setmaxdigits (131); 131 = hexadecimal digits of n =/2+3 var key = new Rsakeypair (rsa_e, ', rsa_m); E,m is obtained from Java code.
var password = "123456"; Password = encryptedstring (key, password); Do not support kanji//pass password to the background, use Java decryption in the background "
3. Java decryption because JS encryption uses the nopadding mode (the same as every encryption result), and Java default is PADDING15, each encryption result is different, so rely on third-party package to decrypt *//http://mvnrepository.com /artifact/org.bouncycastle/bcprov-jdk15on compile group: ' Org.bouncycastle ', Name: ' Bcprov-jdk15on ', version: ' 1.54 ' * /' ' Rsautil.decryptjsrsa (password);
"Java Code Tool Class: ' Package Com.wch.encrypt; import java.security.keyfactory;import Java.security.PrivateKey; Import Java.security.interfaces.rsapublickey;import Java.security.spec.pkcs8encodedkeyspec;import Java.security.spec.x509encodedkeyspec;import Java.util.base64; import Javax.crypto.cipher; import Org.bouncycastle.jce.provider.bouncycastleprovider;import Org.bouncycastle.util.encoders.hex; import com.netfinworks.util.rsa; /** * RSA Tool class. Provides encryption, decryption, and generation of key equivalence methods. Bcprov-jdk16-140.jar package is required. * JS Dependent http://www.ohdave.com/rsa/*//Http://mvnrepository.com/artifact/org.bouncycastle/bcprov-jdk15on Compile Group: ' Org.bouncycastle ', Name: ' Bcprov-jdk15on ', version: ' 1.54 ' */public class Rsautil { private static final String pubkeystr = "migfma0gcsqgsib3dqebaquaa4gnadcbiqkbgqc1gr+rifylanunlifsk/ knb54nqrcrtrmodujtwkpqklo4pnyj2stmrywetefxocftct/7ixturu2rggjkiolyc3144h0djkdtpxw9+ Mfyw1vwwvtfoisuektebz1tshghecdevvq6qlsqukilaezabiwfee30tq6g979x6yxhnqidaqab "; private static final String Prikeystr = " Miiceqibadanbgkqhkig9w0baqefaascammwggjfageaaogbalwcv6sh9ivo1q0uiwwr8qdvnidcsjfnew526npcsmooujik1ipzk2avjyrn4xe4iw0k3 /ulfnsttzeyaoqg6vglfxjihr0koo09fd36yxjbvxba+1+ ijjr4pmrvpw1iecerx0s9wrqqvjc6sisarlpulb8qtfrndqd3v1fphegdagmbaaecgyearmr1w3zfcxoxpvitjuuv589akl/ rs7temygomdqzrel1cplczrxinsmvq3otlzja5genncpx2eyunl7ydf+t2wgcvpplm+turbnti9gkywlxiwpuwou8ozolhatuqqulfnjtz+ 6cyjha3s4xnrjaevvs8xgy6/uajwxupm/dqaecqqdlw9lporwaavfuzqftvtwhtjhvmbz/aeuxcmmmf2kbgaujbxjuvhve5rzw9/ 6tqowinuk4j/uolcfl3vttepgzakeaypggjwgyq3uz0kx8yschv/ guza56l5grofmripiek4uvt2jm1kqgiq9t9pionv7dz7burk2gxi3glgeuhdr2jqjbajpaypz7qmbfdnkdosyoqztdegcr+ fqj3azrq0m3knr4gy0nlz8jw4qgjmkdcjmvkhdh+dae1ywzx7icmof6hgkcqqcto+ lkiivx7growahi5j5lbvtwbqcyepbhbx8z5z8pj1mwwxxdbmtk4gc9momw1qwwqg9bdiqvfgw+ 2n2bv5xbakeahuaidfoywrib3vuzwtqeilvfqxhd8a9acelltgijk8wiu9gngifkwuvoveoq0gcftvqwo5tlac+oedhccimlyq== "; /** * Decrypt JS encrypted rsa * * @param str * JS Encrypted string; * JS Encryption Reference http://blog.csdn.net/songxiaobing/article/details * /17505237 * @return */ public static string Decryptjsrsa (String str) { Privatekey privatekey; Try { Privatekey = Rsa.getprivatekey (prikeystr); Cipher Cipher = cipher.getinstance ("rsa/none/nopadding", New BouncycastleproVider ()); Cipher.init (Cipher.DECRYPT_MODE, Privatekey); StringBuilder sb = new StringBuilder (New String (Cipher.dofinal (hex . Decode (str))); return Sb.reverse (). toString (); } catch (Exception e) { & nbsp; e.printstacktrace (); } return null; } / ** * Native plus decryption code * * @throws exception */ public static void Rsatest () throws Exception { Keyfactory factory = keyfactory.getinstance ("RSA", new Bouncycastleprovider ()); byte[] bytes = Base64.getdecoder (). Decode (PUBKEYSTR); X509ENCODEDKEYSPEC spec = new X509encodedkeyspec (bytes); Rsapublickey PublicKey = (rsapublickey) factory.generatepublic (spec); System.out.println (Publickey.getpublicexponent (). toString ()); System.out.println (Publickey.getmodulus (). toString ()); byte[] Pirvatebytes = Base64.getdecoder (). Decode (PRIKEYSTR); Pkcs8encodedkeyspec Privatespec = new Pkcs8encodedkeyspec (pirvatebytes); Privatekey Privatekey= Factory.generateprivate (Privatespec); byte[] encode = RSA.encrypt ("WCh". GetBytes (), Privatekey); System.out.println (Base64.getencoder () . encodetostring (encode)); System.out.println (New String (Rsa.decrypt ( Encode, PublicKey))); byte[] Publicencode = RSA.encrypt ("pubic". GetBytes (), PublicKey); System.out.println (Base64.getencoder (). Encodetostring (Publicencode)); System.out.println (New String ( Rsa.decrypt (Publicencode, Privatekey))); byte[] sign = RSA.sign (" WCh ". GetBytes (), Privatekey); System.out.println (Base64.getencoder (). Encodetostring (sign)); System.out.println (rsa.verify ("WCh"). GetBytes (),Sign, PublicKey)); } public static void Main (string[] args) throws Exception { rsatest (); } } "
From for notes (Wiz)
RSA JS encrypted Java decryption
