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Unable to find ripemd160 due to missing crypto function in OpenSSLv3 #19

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34 changes: 34 additions & 0 deletions README.md
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Expand Up @@ -11,6 +11,40 @@ pip3 install btcpay-python
```
This library is fully backward compatible with the prior unofficial library; no code changes are needed.

## Notes on Python unable to find **ripemd160**
Most likely your system is using an updated version of OpenSSL(v3) in which old crypto functions has been dissabled.
To enable old crypto functions and riemd160, you have to edit your configuration.

Find your OpenSSL version
```
openssl version
```

Find your OpenSSL config dir:
```
openssl version -d
```

Add/modify your ```openssl.cnf``` as follows:
<pre>
openssl_conf = openssl_init

[openssl_init]
providers = provider_sect

[provider_sect]
default = default_sect
legacy = legacy_sect

[default_sect]
activate = 1

[legacy_sect]
activate = 1
</pre>

A github discussion on this topic: https://github.com/openssl/openssl/issues/16994

## Pairing to your server:
To connect your website with your BTCPay server, you must first pair your application to BTCPay. To do this you will need to generate a pairing code as follows:

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