source/encryption.js
function encryptGCM(text, keyDerivationInfo, iv) {
    return Promise.resolve().then(() => {
        const ivHex = iv.toString("hex");
        const { rounds } = keyDerivationInfo;
        const encryptTool = crypto.createCipheriv(ENC_ALGORITHM_GCM, keyDerivationInfo.key, iv);
        // Add additional auth data
        encryptTool.setAAD(new Buffer(`${ivHex}${keyDerivationInfo.salt}`, "utf8"));
        // Perform encryption
        let encryptedContent = encryptTool.update(text, "utf8", "base64");
        encryptedContent += encryptTool.final("base64");
        // Handle authentication
        const tag = encryptTool.getAuthTag();
        // Output encrypted components
        return {
            mode: "gcm",
            iv: ivHex,
            salt: keyDerivationInfo.salt,
            rounds,
            content: encryptedContent,
            auth: tag.toString("hex")
        };
    });
}
function encryptGCM(text, keyDerivationInfo, iv) {
    return Promise.resolve().then(() => {
        const ivHex = iv.toString("hex");
        const { rounds } = keyDerivationInfo;
        const encryptTool = crypto.createCipheriv(ENC_ALGORITHM_GCM, keyDerivationInfo.key, iv);
        // Add additional auth data
        encryptTool.setAAD(new Buffer(`${ivHex}${keyDerivationInfo.salt}`, "utf8"));
        // Perform encryption
        let encryptedContent = encryptTool.update(text, "utf8", "base64");
        encryptedContent += encryptTool.final("base64");
        // Handle authentication
        const tag = encryptTool.getAuthTag();
        // Output encrypted components
        return {
            mode: "gcm",
            iv: ivHex,
            salt: keyDerivationInfo.salt,
            rounds,
            content: encryptedContent,
            auth: tag.toString("hex")
        };
    });
}
function encryptGCM ( text , keyDerivationInfo , iv ) { return Promise . resolve ( ) . then ( ( ) => { const ivHex = iv . toString ( "hex" ) ; const { rounds } = keyDerivationInfo ; const encryptTool = crypto . createCipheriv ( ENC_ALGORITHM_GCM , keyDerivationInfo . key , iv ) ; // Add additional auth data encryptTool . setAAD ( new Buffer ( ` ${ ivHex } ${ keyDerivationInfo . salt } ` , "utf8" ) ) ; // Perform encryption let encryptedContent = encryptTool . update ( text , "utf8" , "base64" ) ; encryptedContent += encryptTool . final ( "base64" ) ; // Handle authentication const tag = encryptTool . getAuthTag ( ) ; // Output encrypted components return { mode : "gcm" , iv : ivHex , salt : keyDerivationInfo . salt , rounds , content : encryptedContent , auth : tag . toString ( "hex" ) } ; } ) ; }
Encrypt text using AES-GCM
@param {String} text The text to encrypt
@param {DerivedKeyInfo} keyDerivationInfo Key derivation information
@param {Buffer} iv A buffer containing the IV
@returns {Promise.<EncryptedComponents>} A promise that resolves with encrypted components
Encrypt text using AES - GCM