kz.greetgo.security.crypto

Interface Crypto

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

Modifier and Type	Method and Description
byte[]	decrypt(byte[] encryptedBytes) Decrypt encrypted data using private key
byte[]	encrypt(byte[] bytes) Encrypt data using public key
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:

entrypted 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