/PBOpenSSL

Prebuild pod - OpenSSL TLS/SSL and crypto library

The UnlicenseUnlicense

PBOpenSSL

TLS/SSL and crypto library

openssl.org

Build detail: toolchain version, minimal requiest OS version.

version Xcode SDK version iOS watchOS tvOS macOS bitcode
1.1.008 (1.1.0h) 9.4 iOS 11.4 >8.0 NA >9.0 NA
1.1.007 (1.1.0g) 9.2 iOS 11.2 >8.0 NA >9.0 NA
1.0.215 (1.0.2o) 9.4.1 iOS 11.4 >8.0 NA >9.0 NA
1.0.214 (1.0.2n) 9.4.1 iOS 11.4 >8.0 NA >9.0 NA
1.0.212 (1.0.2l) 9.2 iOS 11.2 >8.0 NA >9.0 NA

Build with script via x2on/OpenSSL-for-iPhone

Usage

// Add at the beginning of your podfile
source 'https://github.com/PBPods/PBOpenSSL.git'

// May also need to add the master repo manually
source 'https://github.com/CocoaPods/Specs.git'

pod 'openssl', '~> 1.0.212'

Others

I must agress @st3fan said:

OpenSSL is not a good choice for getting access to crypto primitives or for SSL/TLS networking in iOS applications.

Instead, you should use the iOS provided libraries.

The native iOS Security and Networking Frameworks will always be more up to date and receive regular security fixes as part of iOS upgrades.