Update pods spec

CryptoSwift.podspec

@@ -1,16 +1,16 @@
 Pod::Spec.new do |s|
   s.name         = "CryptoSwift"
-  s.version      = "1.5.1"
+  s.version      = "1.6.0"
   s.source       = { :git => "https://github.com/krzyzanowskim/CryptoSwift.git", :tag => "#{s.version}" }
-  s.summary      = "Cryptography in Swift. SHA, MD5, CRC, PBKDF, Poly1305, HMAC, CMAC, HDKF, Scrypt, ChaCha20, Rabbit, Blowfish, AES."
-  s.description  = "Cryptography functions and helpers for Swift implemented in Swift. SHA-1, SHA-2, SHA-3, MD5, PBKDF1, PBKDF2, Scrypt, CRC, Poly1305, HMAC, ChaCha20, Rabbit, Blowfish, AES"
+  s.summary      = "Cryptography in Swift. SHA, MD5, CRC, PBKDF, Poly1305, HMAC, CMAC, HDKF, Scrypt, ChaCha20, Rabbit, Blowfish, AES, RSA."
+  s.description  = "Cryptography functions and helpers for Swift implemented in Swift. SHA-1, SHA-2, SHA-3, MD5, PBKDF1, PBKDF2, Scrypt, CRC, Poly1305, HMAC, ChaCha20, Rabbit, Blowfish, AES, RSA"
   s.homepage     = "https://github.com/krzyzanowskim/CryptoSwift"
   s.license      = {:type => "Attribution", :file => "LICENSE"}
   s.authors      = {'Marcin Krzyżanowski' => 'marcin@krzyzanowskim.com'}
   s.social_media_url = "https://twitter.com/krzyzanowskim"
   s.cocoapods_version = '>= 1.10.0'
   s.swift_version = "5.3"
-  s.ios.deployment_target = "9.0"
+  s.ios.deployment_target = "11.0"
   s.osx.deployment_target = "10.12"
   s.watchos.deployment_target = "2.0"
   s.tvos.deployment_target = "9.0"