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Convert Encryption to ES6

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This commit is contained in:
haad 2015-12-27 16:34:02 +02:00
parent 02f5af4bc0
commit c39a991edf
1 changed files with 49 additions and 73 deletions
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122
Encryption.js
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@ -2,84 +2,60 @@
var fs = require('fs'); var fs = require('fs');
var crypto = require('crypto'); var crypto = require('crypto');
var Base58 = require('bs58');
var algorithm = 'aes-256-ecb'; var algorithm = 'aes-256-ecb';
var useEncryption = true;
/* ENCRYPTION / DECRYPTION */ class Encryption {
function encrypt(text, privkey, pubkey) { static encrypt(text, privkey, pubkey) {
if(!useEncryption) var encrypted;
return text; try {
var cipher = crypto.createCipher(algorithm, privkey)
var encrypted; encrypted = cipher.update(text, 'utf8', 'hex')
try { encrypted += cipher.final('hex');
var cipher = crypto.createCipher(algorithm, privkey) } catch(e) {
encrypted = cipher.update(text, 'utf8', 'hex') console.log("Error while encrypting:", e, e.stack);
encrypted += cipher.final('hex'); }
} catch(e) { return encrypted;
console.log("Error while encrypting:", e, e.stack);
} }
return encrypted;
}
function decrypt(text, privkey, pubkey) { static decrypt(text, privkey, pubkey) {
if(!useEncryption) var decrypted;
return text; try {
var cipher = crypto.createDecipher(algorithm, privkey)
var decrypted; decrypted = cipher.update(text, 'hex', 'utf8')
try { decrypted += cipher.final('utf8');
var cipher = crypto.createDecipher(algorithm, privkey) } catch(e) {
decrypted = cipher.update(text, 'hex', 'utf8') console.log("Error while decrypting:", e, e.stack);
decrypted += cipher.final('utf8'); }
} catch(e) { return decrypted;
console.log("Error while decrypting:", e, e.stack);
} }
return decrypted;
}
/* SIGNING FUNCTIONS */ static hashWithSHA512(data, salt) {
function hashWithSHA512(data, salt) { if(!salt) salt = "null";
if(!salt) salt = "null"; var hash = crypto.createHmac('sha512', salt);
var hash = crypto.createHmac('sha512', salt); hash.update(data);
hash.update(data); var value = hash.digest('hex');
var value = hash.digest('hex'); return value;
return value;
}
function sign(data, privkey, seq, salt) {
if(!salt) salt = "null";
var sign = crypto.createSign('RSA-SHA256');
var hash = hashWithSHA512(data, "" + salt)
sign.update("" + seq + hash);
var sig = sign.sign(privkey, 'hex');
return sig;
}
function verify(data, pubkey, sig, seq, salt) {
if(!salt) salt = "null";
var verify = crypto.createVerify('RSA-SHA256');
var hash = hashWithSHA512(data, salt);
verify.update("" + seq + hash);
var verified = verify.verify(pubkey, sig, 'hex');
return verified;
}
/* PUBLIC */
module.exports = {
encrypt: function(payload, privkey, pubkey) {
return encrypt(payload, privkey, pubkey);
},
decrypt: function(payload, privkey, pubkey) {
return decrypt(payload, privkey, pubkey);
},
sign: (data, privateKey, sequenceNumber, salt) => {
return sign(data, privateKey, sequenceNumber, salt);
},
verify: (data, publicKey, signature, sequenceNumber, salt) => {
return verify(data, publicKey, signature, sequenceNumber, salt);
},
hash: (data, salt) => {
return hashWithSHA512(data, salt);
} }
}
static sign(data, privkey, seq, salt) {
if(!salt) salt = "null";
var sign = crypto.createSign('RSA-SHA256');
var hash = Encryption.hashWithSHA512(data, "" + salt)
sign.update("" + seq + hash);
var sig = sign.sign(privkey, 'hex');
return sig;
}
static verify(data, pubkey, sig, seq, salt) {
if(!salt) salt = "null";
var verify = crypto.createVerify('RSA-SHA256');
var hash = Encryption.hashWithSHA512(data, salt);
verify.update("" + seq + hash);
var verified = verify.verify(pubkey, sig, 'hex');
return verified;
}
}
module.exports = Encryption;