wstrange/GoogleAuth

Health v2 · maintenance only

Adoption not part of the score

1108 stars · 333 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

GoogleAuth is a Java server-side library implementing the Time-based One-Time Password (TOTP) algorithm from RFC 6238, compatible with Google Authenticator clients. It lets Java applications generate TOTP shared secrets and verify one-time passwords for multi-factor authentication.

Use cases

• add TOTP two-factor authentication to a Java web app
• generate TOTP shared secrets for users to scan into Google Authenticator
• verify one-time passwords server-side during login
• implement MFA compatible with authenticator apps like Google Authenticator or Authy
• build custom TOTP token validation in Java 7+ applications

When to choose

• you need server-side TOTP verification in a Java or JVM application
• you want compatibility with standard authenticator apps without implementing RFC 6238 yourself
• you need a small, well-documented library with JavaDoc and tests

When to avoid

• you need full MFA flows including enrollment UI, backup codes, or push notifications
• your stack is not on the JVM
• you need HOTP counter-based OTP or other OTP variants beyond TOTP

Facets

library · maturity stable

auth cryptography security security backend developer-tools jvm cross-platform totp two-factor-authentication google-authenticator rfc6238 mfa otp

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markdown · JSON · MCP: product_card(name="wstrange/GoogleAuth")