65 lines
1.8 KiB
Lua
65 lines
1.8 KiB
Lua
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mtt.register("otp.hmac", function(callback)
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local secret_b32 = "N6JGKMEKU2E6HQMLLNMJKBRRGVQ2ZKV7"
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local secret = otp.basexx.from_base32(secret_b32)
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local unix_time = 1640995200
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local expected_hmac = otp.basexx.from_base64("m04YheEb7i+ThPMUJEfVXVybZFo=")
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assert(#expected_hmac == 20)
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local tx = 30
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local ct = math.floor(unix_time / tx)
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local counter = otp.write_uint64_be(ct)
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assert( #secret == 20 )
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assert( otp.basexx.to_base64(secret) == "b5JlMIqmiePBi1tYlQYxNWGsqr8=" )
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assert( #counter == 8 )
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assert( otp.basexx.to_base64(counter) == "AAAAAANCp0A=" )
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local hmac = otp.hmac(secret, counter)
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assert(#hmac == 20)
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for i=1,20 do
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assert( string.byte(expected_hmac,i) == string.byte(hmac, i) )
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end
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callback()
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end)
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mtt.register("otp.generate_totp", function(callback)
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local expected_code = 699847
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local secret_b32 = "N6JGKMEKU2E6HQMLLNMJKBRRGVQ2ZKV7"
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local unix_time = 1640995200
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local code, valid_seconds = otp.generate_totp(secret_b32, unix_time)
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assert(code == ""..expected_code)
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assert(valid_seconds > 0)
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code, valid_seconds = otp.generate_totp(secret_b32)
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print("Current code: " .. code .. " valid for " .. valid_seconds .. " seconds")
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callback()
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end)
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mtt.register("otp.create_qr_png", function(callback)
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local url = "otpauth://totp/abc:myaccount?algorithm=SHA1&digits=6&issuer=abc&period=30&"
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.. "secret=N6JGKMEKU2E6HQMLLNMJKBRRGVQ2ZKV7"
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local ok, code = otp.qrcode(url)
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assert(ok)
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assert(code)
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local png = otp.create_qr_png(code)
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assert(png)
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local f = io.open(minetest.get_worldpath() .. "/qr.png", "w")
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f:write(png)
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f:close()
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callback()
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end)
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mtt.register("otp.generate_secret", function(callback)
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local s = otp.generate_secret()
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assert(#s == 20)
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callback()
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end) |