Swift 5.8.1 build issue Linux

There are some build issues for this package in Swift 5.8.1 (current release version). The issues I am seeing are as follows:

```
/var/www/project/.build/checkouts/BlueRSA/Sources/CryptorRSA/CryptorRSA.swift:476:61: error: cannot find 'EVP_PKEY_size' in scope
ek = UnsafeMutablePointer.allocate(capacity: Int(EVP_PKEY_size(.make(optional: key.reference))))
^~~~~~~~~~~~~
/var/www/project/.build/checkouts/BlueRSA/Sources/CryptorRSA/CryptorRSA.swift:476:76: error: cannot infer contextual base in reference to member 'make'
ek = UnsafeMutablePointer.allocate(capacity: Int(EVP_PKEY_size(.make(optional: key.reference))))
~^~~~
/var/www/project/.build/checkouts/BlueRSA/Sources/CryptorRSA/CryptorRSA.swift:481:20: error: cannot find 'EVP_CIPHER_iv_length' in scope
let IVLength = EVP_CIPHER_iv_length(.make(optional: enc))
^~~~~~~~~~~~~~~~~~~~
/var/www/project/.build/checkouts/BlueRSA/Sources/CryptorRSA/CryptorRSA.swift:481:42: error: cannot infer contextual base in reference to member 'make'
let IVLength = EVP_CIPHER_iv_length(.make(optional: enc))
~^~~~
/var/www/project/.build/checkouts/BlueRSA/Sources/CryptorRSA/CryptorRSA.swift:688:28: error: cannot find 'EVP_PKEY_size' in scope
let encKeyLength = Int(EVP_PKEY_size(.make(optional: key.reference)))
^~~~~~~~~~~~~
/var/www/project/.build/checkouts/BlueRSA/Sources/CryptorRSA/CryptorRSA.swift:688:43: error: cannot infer contextual base in reference to member 'make'
let encKeyLength = Int(EVP_PKEY_size(.make(optional: key.reference)))
~^~~~
/var/www/project/.build/checkouts/BlueRSA/Sources/CryptorRSA/CryptorRSA.swift:690:27: error: cannot find 'EVP_CIPHER_iv_length' in scope
let encIVLength = Int(EVP_CIPHER_iv_length(.make(optional: encType)))
^~~~~~~~~~~~~~~~~~~~
/var/www/project/.build/checkouts/BlueRSA/Sources/CryptorRSA/CryptorRSA.swift:690:49: error: cannot infer contextual base in reference to member 'make'
let encIVLength = Int(EVP_CIPHER_iv_length(.make(optional: encType)))
~^~~~
/var/www/project/.build/checkouts/BlueRSA/Sources/CryptorRSA/CryptorRSA.swift:697:74: error: cannot convert value of type 'String' to expected argument type 'Data.Index' (aka 'Int')
let encryptedData = self.data.subdata(in: encKeyLength..