The Bondi crypto Module - Version 1.5

Code example

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Code example

 //Use the crypto API to encrypt and decrypt a string.
 // We're using 128 bit AES in Electronic Cookbook Mode (ECB) without padding.
 
 var clearText="This is a text I don't want anyone to read during transmission.";
 var myKey=bondi.crypto.getCipher.getKey();
 myKey.privateKey = "password";
 var myCipherObject;

 // this function handles the error case
 function onError(error) {
      alert(error.code);
 }
 
 // this function is called on successful decryption
 function onDecryptionSuccess(decryptedText) {
      alert("Decrypted text is "+decryptedText+" original text was "+clearText+" both should be identical.");
 }
                 
 // this function is called on successful encryption
 function onEncryptionSuccess(encryptedText) {
      alert("Encrypted text is: " + encryptedText);
      // decrypt it
      myCipherObject.decrypt(onDecryptionSuccess, onError, cipherText, myKey);
 }

 var useAlgorithm = bondi.crypto.CIPHER_ALGORITHM_AES;
 var useMode = bondi.crypto.CIPHER_MODE_ECB;
 var usePadding = bondi.crypto.CIPHER_PADDING_NONE;           

 myCipherObject=bondi.crypto.getCipher(useAlgorithm, useMode, usePadding);

 // encrypt the clear text 
 myCipherObject.encrypt(onEncryptionSuccess, onError, clearText, myKey);
 

Code example

 // Use the crypto API to hash data in a string.
 // We're using 256 bit SHA 2 hashing in this example.
 
 var hashText="This is the text that I want to know the hash value of.";

 // this function handles the error case
 function onError(error) {
      alert(error.code);
 }

 // this function is called on successful hashing
 function onHashSuccess(hashValue) {
      alert("Hash value for text "+hashText+" is "+hashValue);
 }
                      
 var useHashAlgorithm=bondi.crypto.HASH_ALGORITHM_SHA256;
 var myHashObject=bondi.crypto.getHash(useHashAlgorithm);                 

 // calculate hash value for the text
 myHashObject.calculate(onHashSuccess, onError, hashText);
 

Code example

 // Use the crypto API to sign a string and verify it afterwards.
 // We're using DSA with a 2048 bit key as the signature algorithm
 
 var signText="This is the text that I want to sign.";
 var myDSAKey ... // for the setting of a key, please refer to the key interface
 var mySignatureObject;

 // this function handles the error case
 function onError(error) {
      alert(error.code);
 }
                      
 // this function is called on completion of signature verification function
 function onVerificationSuccess(verificationResult) {
      if(verificationResult)alert("Signature for "+signText+" has been verified.");
      else                  alert("Signature verification for "+signText+" failed!");
 }

 // this function is called on successful signing
 function onSignatureSuccess(signatureValue) {
      alert("Signature value for text "+signText+" is "+signatureValue);
      // the verification uses the public key from the Key object
      mySignatureObject.verify(onVerificationSuccess, onError, signatureValue, signText, myDSAKey);
 }

 var useSignatureAlgorithm=bondi.crypto.SIGNATURE_ALGORITHM_DSA;
 mySignatureObject=bondi.crypto.getSignature(useSignatureAlgorithm);                 

 // calculate signature value for the text - thus uses the private key from the Key object
 mySignatureObject.sign(onSignatureSuccess, onError, signText, myDSAKey);
 

Code example