RSA encryption in Javascript and decryption in C#.

Question

Please Provide me code of RSA encryption in Javascript and decryption in C#.

Laxmidhar Sahoo · Answer

"text/javascript" > $( function () { //Change the key size value for new keys $( ".change-key-size" ).each( function (index, value) { var el = $(value); var keySize = el.attr( 'data-value' ); el.click( function (e) { var button = $( '#key-size' ); button.attr( 'data-value' , keySize); button.html(keySize + ' bit ' ); e.preventDefault(); }); }); // Execute when they click the button. $( '#execute' ).click( function () { // Create the encryption object. var crypt = new JSEncrypt(); // Set the private. crypt.setPrivateKey($( '#privkey' ).val()); //return; // If no public key is set then set it here... var pubkey = $( '#pubkey' ).val(); if (!pubkey) { $( '#pubkey' ).val(crypt.getPublicKey()); } // Get the input and crypted values. var input = $( '#input' ).val(); var crypted = $( '#crypted' ).val(); // Alternate the values. if (input) { $( '#crypted' ).val(crypt.encrypt(input)); $( '#input' ).val( '' ); } else if (crypted) { var decrypted = crypt.decrypt(crypted); if (!decrypted) decrypted = 'This is a test!' ; $( '#input' ).val(decrypted); $( '#crypted' ).val( '' ); } }); var generateKeys = function () { var sKeySize = $( '#key-size' ).attr( 'data-value' ); var keySize = parseInt(sKeySize); var crypt = new JSEncrypt({ default_key_size: keySize }); var async = $( '#async-ck' ).is( ':checked' ); var dt = new Date(); var time = -(dt.getTime()); if (async) { $( '#time-report' ).text( '.' ); var load = setInterval( function () { var text = $( '#time-report' ).text(); $( '#time-report' ).text(text + '.' ); }, 500); crypt.getKey( function () { clearInterval(load); dt = new Date(); time += (dt.getTime()); $( '#time-report' ).text( 'Generated in ' + time + ' ms' ); $( '#privkey' ).val(crypt.getPrivateKey()); $( '#pubkey' ).val(crypt.getPublicKey()); }); return ; } crypt.getKey(); dt = new Date(); time += (dt.getTime()); $( '#time-report' ).text( 'Generated in ' + time + ' ms' ); $( '#privkey' ).val(crypt.getPrivateKey()); $( '#pubkey' ).val(crypt.getPublicKey()); }; // If they wish to generate new keys. $( '#generate' ).click(generateKeys); generateKeys(); });

Aashish Jain · Answer

Could you please share js code for my email id m.aashishjain@gmail.com Thanks, Aashish Jain

Madan Shekar · Answer

please go through this link https://blog.dotnetframework.org/2018/06/26/asymetric-encryption-in-c-and-javascript/

RSA encryption in Javascript and decryption in C#.

Answers (3)