ANDXOR OTP is a free software token for two-factor authentication for the iPhone iPad. ANDXOR OTP implements the RFC 4226 HOTP/OATH algorithm standard and is not tied to any proprietary server software. Multiple tokens are supported and may be fully configured as event-based or time-based. In particular ANDXOR KryptoEvolution is a Server for secure Digital Signature and support automatic deployment of OTP Tokens in conjunction with ANDXOR OTP. Tokens can be fully edited at any time, until if and when put in lockdown mode, after which editing is permanently disabled.