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prezu.ca | ||
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labanskoller.se
You probably use an "authenticator app" such as Google Authenticator to enable two-step verification (sometimes called two-factor authentication, 2FA, or multi-factor authentication, MFA) for an online account. The method is called Time-Based One-Time Password Algorithm (TOTP) and is standardized in RFC 6238. In October 2017 when I evaluated HashiCorp Vault for generating and storing TOTP secrets for a system at work I realized that the Android version and iOS version of Google Authenticator differed a lot when it comes to which modes are supported. |
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zserge.com
Many of us use one-time passwords (OTP) regularly to log into different services. Most probably rely on Google Authenticator and similar tools. But what about building one by ourselves? |
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stefansundin.github.io
2FA QR Code Generator |
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dzone.com
We examine cookie and token-based authentication, advantages of using tokens, and address common questions developers have regarding token-based auth. |
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