BlueRSA

Seamlessly uses Security framework on Apple platforms and OpenSSL on Linux, providing a unified Swift API for RSA operations, as highlighted in the cross-platform support feature.

Supports creating public and private keys from various sources like Data, Base64 strings, PEM/DER files, and certificates, with seven factory methods each, as detailed in the Key Handling section.

Provides structured types such as PublicKey, PrivateKey, and EncryptedData, ensuring compile-time safety and reducing runtime errors in cryptographic operations.

Offers straightforward functions for encryption, decryption, signing, and verification with clear examples, like encrypting plaintext with a public key using .sha1 algorithm.