• Security
• OTP

One Time Password

• http://www.ietf.org/rfc/rfc4226.txt - HOTP: An HMAC-Based One-Time Password Algorithm

Mostly open implementations.

• http://motp.sourceforge.net/

• http://code.google.com/p/google-authenticator/

  • implementations support the HMAC-Based One-time Password (HOTP) algorithm specified in RFC 4226 and the Time-based One-time Password (TOTP) algorithm

Problems and Concerns with OTP on mobile phone

• http://www.dotnetnoob.com/2011/02/steal-google-account-and-get-free-otp.html

CategorySecurity