HTTPS
=====

OkHttp attempts to balance two competing concerns:

 * **Connectivity** to as many hosts as possible. That includes advanced hosts that run the latest versions of [boringssl](https://boringssl.googlesource.com/boringssl/) and less out of date hosts running older versions of [OpenSSL](https://www.openssl.org/).

security.

OkHttp uses your platform's built-in TLS implementation. On Java platforms OkHttp also supports
[Conscrypt][conscrypt], which integrates [BoringSSL](https://github.com/google/boringssl) with Java. OkHttp will use Conscrypt if it is
the first security provider:

```java
Security.insertProviderAt(Conscrypt.newProvider(), 1);
```

only used for randomly-selected w in the // context of RSA key generation, we can use a smaller number of iterations. // The exact number depends on the size of the prime (and the implied // security level). See BoringSSL for the full formula. // https://cs.opensource.google/boringssl/boringssl/+/master:crypto/fipsmodule/bn/prime.c.inc;l=208-283;drc=3a138e43 bits := mr.w.BitLen() var iterations int switch { case bits >= 3747: iterations = 3 case bits >= 1345: iterations = 4 case bits >= 476: iterations...