Crypto (greetgo-security-core 1.0.0 API)

All Known Implementing Classes:

CryptoBridge
```
public interface Crypto
```
Encrypt and decrypt data. Sign and verify signature of data. Random generation.

Key pair will generate automatically and saved into key storage on first using

To create implementation use CryptoBuilder

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`byte[]`	`decrypt(byte[] encryptedBytes)`	Decrypt encrypted data using private key
`byte[]`	`encrypt(byte[] bytes)`	Encrypt data using public key
`byte[]`	`makeHash(byte[] sourceBytes)`	Generate hash
`java.security.SecureRandom`	`rnd()`	Gives security random generator
`byte[]`	`sign(byte[] bytes)`	Sign data
`boolean`	`verifySignature(byte[] bytes, byte[] signature)`	Verifies signature

- Method Detail
  - encrypt
```
byte[] encrypt(byte[] bytes)
```
    Encrypt data using public key
    
    Parameters:
    
    bytes - data to encrypt
    
    Returns:
    
    encrypted data
  - decrypt
```
byte[] decrypt(byte[] encryptedBytes)
```
    Decrypt encrypted data using private key
    
    Parameters:
    
    encryptedBytes - encrypted data
    
    Returns:
    
    decrypted (original) data
  - sign
```
byte[] sign(byte[] bytes)
```
    Sign data
    
    Parameters:
    
    bytes - the data to sign
    
    Returns:
    
    signature
  - verifySignature
```
boolean verifySignature(byte[] bytes,
                        byte[] signature)
```
    Verifies signature
    
    Parameters:
    
    bytes - checking data
    
    signature - verifying signature
    
    Returns:
    
    verification result: true - verification is OK, otherwise - verification wrong
  - rnd
```
java.security.SecureRandom rnd()
```
    Gives security random generator
    
    Returns:
    
    security random generator
  - makeHash
```
byte[] makeHash(byte[] sourceBytes)
```
    Generate hash
    
    Parameters:
    
    sourceBytes - source data
    
    Returns:
    
    hash