# Secure Remote Password Protocol

**URL:** <https://forums.digi.com/t/secure-remote-password-protocol/22942>\
**Category:** XBee - DigiMesh\
**Tags:** security, srp, ble\
**Created:** [February 10, 2022, 12:22pm UTC](https://forums.digi.com/t/secure-remote-password-protocol/22942 "2022-02-10T12:22:58Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![psmale](https://avatars.discourse-cdn.com/v4/letter/p/e274bd/32.png) [@psmale](https://forums.digi.com/u/psmale)\
**Post date:** [February 10, 2022, 12:22pm UTC](https://forums.digi.com/t/secure-remote-password-protocol/22942/1 "2022-02-10T12:22:58Z")

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Secure Remote Password protocol that the xbee3 uses for the bluetooth authentication, how it gets computed in xctu? With a basic password of “hello” the advanced configuration is:  
Salt:0754A93E  
Verifier:E2DDEEA9A4C6B3D2A925E112E7D7B2B61EF083F41386703A63EC659C90DE4295AF57B0F42DAB9FAA858DD8DE85B630314EABDDB66017230F29AA98D741EDBB4EEF2B24DA2B97571A94E9D2553083DC62BCF6482CEBE7605639F5E091CAAE89A4AD0B727E73A304FA702BD1267DFE79C10455793EED6BF5340E1CF74035F9574B

How would I recrate this value?

Right now I’m using:  
N=EEAF0AB9ADB38DD69C33F80AFA8FC5E86072618775FF3C0B9EA2314C9C256576D674DF7496EA81D3383B4813D692C6E0E0D5D8E250B98BE48E495C1D6089DAD15DC7D7B46154D6B6CE8EF4AD69B15D4982559B297BCF1885C529F566660E57EC68EDBC3C05726CC02FD4CBF4976EAA9AFD5138FE8376435B9FC61D2FC0EB06E3  
g=2  
x = sha256(salt | sha256(apiservice:hello))  
v = g^x % N  
But v doesn’t = Verifier

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<div class="post-metadata">

**Author:** ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)\
**Post date:** [February 10, 2022, 12:28pm UTC](https://forums.digi.com/t/secure-remote-password-protocol/22942/2 "2022-02-10T12:28:47Z")

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Please contact Digi Support regarding this

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<div class="post-metadata">

**Author:** ![acpie360](https://avatars.discourse-cdn.com/v4/letter/a/9d8465/32.png) [@acpie360](https://forums.digi.com/u/acpie360)\
**Post date:** [February 12, 2022, 10:13am UTC](https://forums.digi.com/t/secure-remote-password-protocol/22942/3 "2022-02-12T10:13:23Z")

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C# code for SRP: [https://github.com/digidotcom/SRP](https://github.com/digidotcom/SRP)