Cipher - Klyn API

Cipher

classin packageklyn.cryptography

public class Cipher:

Cipher

High-level encryption facade.

This class is intentionally focused on encryption and decryption. Hashing, MACs, signatures, random generation and key derivation are exposed by dedicated classes such as MessageDigest, Mac, Signature, SecureRandom, KeyGenerator, KeyPairGenerator and SecretKeyFactory.

Supported features:

AES encryption/decryption in GCM, CBC and CTR
RSA encryption/decryption in OAEP and PKCS1

import klyn.cryptography

keyGenerator = AESKeyGenerator()
keyGenerator.initialize(256)
key = keyGenerator.generateKey()
payload = Cipher.aesGcmEncrypt("secret", key)
plain = Cipher.aesGcmDecrypt(payload, key)
print(plain)

Methods

Modifier and Type	Member	Description
public static	aesCbcDecrypt `aesCbcDecrypt(payload as AESCipherText, key as String, keyEncoding as String = "base64") as String throws CryptoException:`	Convenience AES-CBC decryption helper.
public static	aesCbcEncrypt `aesCbcEncrypt(plainText as String, key as String, keyEncoding as String = "base64", iv as String = null, ivEncoding as String = "base64") as AESCipherText throws CryptoException:`	Convenience AES-CBC encryption helper.
public static	aesCtrDecrypt `aesCtrDecrypt(payload as AESCipherText, key as String, keyEncoding as String = "base64") as String throws CryptoException:`	Convenience AES-CTR decryption helper.
public static	aesCtrEncrypt `aesCtrEncrypt(plainText as String, key as String, keyEncoding as String = "base64", iv as String = null, ivEncoding as String = "base64") as AESCipherText throws CryptoException:`	Convenience AES-CTR encryption helper.
public static	aesDecrypt `aesDecrypt(payload as AESCipherText, key as String, keyEncoding as String = "base64", aad as String = null) as String throws CryptoException:`	Decrypts an AES payload produced by `aesEncrypt`.
public static	aesEncrypt `aesEncrypt(plainText as String, key as String, mode as String = "GCM", keyEncoding as String = "base64", iv as String = null, ivEncoding as String = "base64", aad as String = null) as AESCipherText throws CryptoException:`	Encrypts text with AES.
public static	aesGcmDecrypt `aesGcmDecrypt(payload as AESCipherText, key as String, keyEncoding as String = "base64", aad as String = null) as String throws CryptoException:`	Convenience AES-GCM decryption helper.
public static	aesGcmEncrypt `aesGcmEncrypt(plainText as String, key as String, keyEncoding as String = "base64", iv as String = null, ivEncoding as String = "base64", aad as String = null) as AESCipherText throws CryptoException:`	Convenience AES-GCM encryption helper.
public static	rsaDecrypt `rsaDecrypt(cipherText as String, privateKeyPem as String, padding as String = "OAEP", hashAlgorithm as String = "SHA-256", inputEncoding as String = "base64") as String throws CryptoException:`	Decrypts RSA ciphertext with a private key.
public static	rsaEncrypt `rsaEncrypt(plainText as String, publicKeyPem as String, padding as String = "OAEP", hashAlgorithm as String = "SHA-256", outputEncoding as String = "base64") as String throws CryptoException:`	Encrypts text with an RSA public key.