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From DESCR: 2fa is a two-factor authentication agent. "2fa -add name" adds a new key to the 2fa keychain with the given name. It prints a prompt to standard error and reads a two-factor key from standard input. Two-factor keys are short case-insensitive strings of letters A-Z and digits 2-7. "2fa name" prints a two-factor authentication code from the key with the given name. With no arguments, "2fa" prints two-factor authentication codes from all known time-based keys. The default time-based authentication codes are derived from a hash of the key and the current time, so it is important that the system clock have at least one-minute accuracy. The keychain is stored unencrypted in the text file "$HOME/.2fa".
18 lines
710 B
Text
18 lines
710 B
Text
2fa is a two-factor authentication agent.
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"2fa -add name" adds a new key to the 2fa keychain with the given name. It
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prints a prompt to standard error and reads a two-factor key from standard
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input. Two-factor keys are short case-insensitive strings of letters A-Z and
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digits 2-7.
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"2fa name" prints a two-factor authentication code from the key with the
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given name.
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With no arguments, "2fa" prints two-factor authentication codes from all
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known time-based keys.
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The default time-based authentication codes are derived from a hash of the
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key and the current time, so it is important that the system clock have at
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least one-minute accuracy.
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The keychain is stored unencrypted in the text file "$HOME/.2fa".
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