关于安全以及密码保护app

1.Securely™ Password Vault for iPad

Securely Password Vault is the first and only password storage system to utilize iCloud for storage of your sensitive 

特长就是使用了icloud，其实此类密码保存工具，售价多挺高得。

The App is crude, not grouping to allow for organizing your data and limited input fields, but has a neat copy feature that allow you to copy the password to your app.

2. password fault

Carry all of you passwords around in a single encrypted vault. Open that vault with a single passphrase and easily copy user names, passwords, and URLs into the pasteboard. 

Passwords are kept encrypted while in memory until copied to the pasteboard.PasswordVault manages multiple vaults and each vault is compatible with thePasswordSafe(tm) file format and algorithms. Use iTunes file sharing to easily keep your desktop PasswordSafe(tm) databases in sync with PasswordVault at no extra charge.PasswordVault, like PasswordSafe, is open-source. The source code is available at ipasswordvault.sourceforge.netPasswordVault, like PasswordSafe, is open-source. The source code is available at ipasswordvault.sourceforge.net

This is the iPhone / iPod Touch version of PasswordVault 2.0

check this web site:http://ipasswordvault.sourceforge.net/

3. 

Lockbox – Password Vault Application for iPhone

电子钱包，帐号密码保护器，这个类型的应用成为用户十分期待的应用之一。Lockbox，可以尝试一下，在2007年就推出了。

4. 加解密程序这块，尤其要考虑程序意外终止以及意外打断进入后台运行的情况，需要把临时目录下的数据清除，甚至是内存数据。