mirror of https://github.com/moparisthebest/mail
51 lines
1.5 KiB
JavaScript
51 lines
1.5 KiB
JavaScript
/**
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* A Wrapper for Forge's AES-CBC encryption
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*/
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var AesCBC = function(forge) {
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'use strict';
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var utl = forge.util;
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/**
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* Encrypt a String using AES-CBC-Pkcs7 using the provided keysize (e.g. 128, 256)
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* @param plaintext [String] The input string in UTF-16
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* @param key [String] The base64 encoded key
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* @param iv [String] The base64 encoded IV
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* @return [String] The base64 encoded ciphertext
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*/
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this.encrypt = function(plaintext, key, iv) {
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// decode args to utf8 and encrypt
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var cipher = forge.aes.createEncryptionCipher(utl.decode64(key));
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cipher.start(utl.decode64(iv));
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cipher.update(utl.createBuffer(utl.encodeUtf8(plaintext)));
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cipher.finish();
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// encode to base64
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return utl.encode64(cipher.output.getBytes());
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};
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/**
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* Decrypt a String using AES-CBC-Pkcs7 using the provided keysize (e.g. 128, 256)
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* @param ciphertext [String] The base64 encoded ciphertext
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* @param key [String] The base64 encoded key
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* @param iv [String] The base64 encoded IV
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* @return [String] The decrypted plaintext in UTF-16
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*/
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this.decrypt = function(ciphertext, key, iv) {
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// decode args input to utf8 decrypt
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var cipher = forge.aes.createDecryptionCipher(utl.decode64(key));
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cipher.start(utl.decode64(iv));
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cipher.update(utl.createBuffer(utl.decode64(ciphertext)));
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cipher.finish();
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// decode to utf16
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return utl.decodeUtf8(cipher.output.getBytes());
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};
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};
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if (typeof module !== 'undefined' && module.exports) {
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module.exports = AesCBC;
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} else {
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app.crypto.AesCBC = AesCBC;
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} |