java.lang.Object

net.minecraft.util.Crypt

public class Crypt extends Object

Nested Class Summary

Nested Classes

Modifier and Type

Class

Description

private static interface

Crypt.ByteArrayToKeyFunction<T extends Key>

static final record

Crypt.SaltSignaturePair

static class

Crypt.SaltSupplier
Field Summary

Fields

Modifier and Type

Field

Description

private static final String

ASYMMETRIC_ALGORITHM

private static final int

ASYMMETRIC_BITS

private static final String

BYTE_ENCODING

private static final String

HASH_ALGORITHM

static final Base64.Encoder

MIME_ENCODER

static final String

MIME_LINE_SEPARATOR

private static final String

PEM_RSA_PRIVATE_KEY_FOOTER

private static final String

PEM_RSA_PRIVATE_KEY_HEADER

static final Codec<PrivateKey>

PRIVATE_KEY_CODEC

static final Codec<PublicKey>

PUBLIC_KEY_CODEC

private static final String

RSA_PUBLIC_KEY_FOOTER

static final String

RSA_PUBLIC_KEY_HEADER

static final int

SIGNATURE_BYTES

static final String

SIGNING_ALGORITHM

private static final String

SYMMETRIC_ALGORITHM

private static final int

SYMMETRIC_BITS
Constructor Summary

Constructors

Constructor

Description

Crypt()
Method Summary

Modifier and Type

Method

Description

private static PrivateKey

byteToPrivateKey(byte[] keyData)

static PublicKey

byteToPublicKey(byte[] keyData)

private static byte[]

cipherData(int cipherOpMode, Key key, byte[] input)

static SecretKey

decryptByteToSecretKey(PrivateKey privateKey, byte[] keyData)

static byte[]

decryptUsingKey(Key key, byte[] input)

private static byte[]

digestData(byte[]... inputs)

static byte[]

digestData(String serverId, PublicKey publicKey, SecretKey sharedKey)

static byte[]

encryptUsingKey(Key key, byte[] input)

static KeyPair

generateKeyPair()

static SecretKey

generateSecretKey()

static Cipher

getCipher(int opMode, Key key)

static String

pemRsaPrivateKeyToString(PrivateKey privateKey)

static String

rsaPublicKeyToString(PublicKey publicKey)

private static <T extends Key> T

rsaStringToKey(String input, String header, String footer, Crypt.ByteArrayToKeyFunction<T> byteArrayToKey)

private static Cipher

setupCipher(int cipherOpMode, String algorithm, Key key)

static PrivateKey

stringToPemRsaPrivateKey(String rsaString)

static PublicKey

stringToRsaPublicKey(String rsaString)

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- SYMMETRIC_ALGORITHM
  private static final String SYMMETRIC_ALGORITHM
  
  See Also:
  
  Constant Field Values
- SYMMETRIC_BITS
  private static final int SYMMETRIC_BITS
  
  See Also:
  
  Constant Field Values
- ASYMMETRIC_ALGORITHM
  private static final String ASYMMETRIC_ALGORITHM
  
  See Also:
  
  Constant Field Values
- ASYMMETRIC_BITS
  private static final int ASYMMETRIC_BITS
  
  See Also:
  
  Constant Field Values
- BYTE_ENCODING
  private static final String BYTE_ENCODING
  
  See Also:
  
  Constant Field Values
- HASH_ALGORITHM
  private static final String HASH_ALGORITHM
  
  See Also:
  
  Constant Field Values
- SIGNING_ALGORITHM
  public static final String SIGNING_ALGORITHM
  
  See Also:
  
  Constant Field Values
- SIGNATURE_BYTES
  public static final int SIGNATURE_BYTES
  
  See Also:
  
  Constant Field Values
- PEM_RSA_PRIVATE_KEY_HEADER
  private static final String PEM_RSA_PRIVATE_KEY_HEADER
  
  See Also:
  
  Constant Field Values
- PEM_RSA_PRIVATE_KEY_FOOTER
  private static final String PEM_RSA_PRIVATE_KEY_FOOTER
  
  See Also:
  
  Constant Field Values
- RSA_PUBLIC_KEY_HEADER
  public static final String RSA_PUBLIC_KEY_HEADER
  
  See Also:
  
  Constant Field Values
- RSA_PUBLIC_KEY_FOOTER
  private static final String RSA_PUBLIC_KEY_FOOTER
  
  See Also:
  
  Constant Field Values
- MIME_LINE_SEPARATOR
  public static final String MIME_LINE_SEPARATOR
  
  See Also:
  
  Constant Field Values
- MIME_ENCODER
  
  public static final Base64.Encoder MIME_ENCODER
- PUBLIC_KEY_CODEC
  
  public static final Codec<PublicKey> PUBLIC_KEY_CODEC
- PRIVATE_KEY_CODEC
  
  public static final Codec<PrivateKey> PRIVATE_KEY_CODEC
Constructor Details
- Crypt
  
  public Crypt()
Method Details
- generateSecretKey
  
  public static SecretKey generateSecretKey() throws CryptException
  
  Throws:
  
  CryptException
- generateKeyPair
  
  public static KeyPair generateKeyPair() throws CryptException
  
  Throws:
  
  CryptException
- digestData
  
  public static byte[] digestData(String serverId, PublicKey publicKey, SecretKey sharedKey) throws CryptException
  
  Throws:
  
  CryptException
- digestData
  
  private static byte[] digestData(byte[]... inputs) throws Exception
  
  Throws:
  
  Exception
- rsaStringToKey
  
  private static <T extends Key> T rsaStringToKey(String input, String header, String footer, Crypt.ByteArrayToKeyFunction<T> byteArrayToKey) throws CryptException
  
  Throws:
  
  CryptException
- stringToPemRsaPrivateKey
  
  public static PrivateKey stringToPemRsaPrivateKey(String rsaString) throws CryptException
  
  Throws:
  
  CryptException
- stringToRsaPublicKey
  
  public static PublicKey stringToRsaPublicKey(String rsaString) throws CryptException
  
  Throws:
  
  CryptException
- rsaPublicKeyToString
  
  public static String rsaPublicKeyToString(PublicKey publicKey)
- pemRsaPrivateKeyToString
  
  public static String pemRsaPrivateKeyToString(PrivateKey privateKey)
- byteToPrivateKey
  
  private static PrivateKey byteToPrivateKey(byte[] keyData) throws CryptException
  
  Throws:
  
  CryptException
- byteToPublicKey
  
  public static PublicKey byteToPublicKey(byte[] keyData) throws CryptException
  
  Throws:
  
  CryptException
- decryptByteToSecretKey
  
  public static SecretKey decryptByteToSecretKey(PrivateKey privateKey, byte[] keyData) throws CryptException
  
  Throws:
  
  CryptException
- encryptUsingKey
  
  public static byte[] encryptUsingKey(Key key, byte[] input) throws CryptException
  
  Throws:
  
  CryptException
- decryptUsingKey
  
  public static byte[] decryptUsingKey(Key key, byte[] input) throws CryptException
  
  Throws:
  
  CryptException
- cipherData
  
  private static byte[] cipherData(int cipherOpMode, Key key, byte[] input) throws CryptException
  
  Throws:
  
  CryptException
- setupCipher
  
  private static Cipher setupCipher(int cipherOpMode, String algorithm, Key key) throws Exception
  
  Throws:
  
  Exception
- getCipher
  
  public static Cipher getCipher(int opMode, Key key) throws CryptException
  
  Throws:
  
  CryptException

Class Crypt

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class Object

Field Details

SYMMETRIC_ALGORITHM

SYMMETRIC_BITS

ASYMMETRIC_ALGORITHM

ASYMMETRIC_BITS

BYTE_ENCODING

HASH_ALGORITHM

SIGNING_ALGORITHM

SIGNATURE_BYTES

PEM_RSA_PRIVATE_KEY_HEADER

PEM_RSA_PRIVATE_KEY_FOOTER

RSA_PUBLIC_KEY_HEADER

RSA_PUBLIC_KEY_FOOTER

MIME_LINE_SEPARATOR

MIME_ENCODER

PUBLIC_KEY_CODEC

PRIVATE_KEY_CODEC

Constructor Details

Crypt

Method Details

generateSecretKey

generateKeyPair

digestData

digestData

rsaStringToKey

stringToPemRsaPrivateKey

stringToRsaPublicKey

rsaPublicKeyToString

pemRsaPrivateKeyToString

byteToPrivateKey

byteToPublicKey

decryptByteToSecretKey

encryptUsingKey

decryptUsingKey

cipherData

setupCipher

getCipher