Package jetbrains.buildServer.serverSide.crypt

Class RSACipher

java.lang.Object

jetbrains.buildServer.serverSide.crypt.RSACipher

public class RSACipher
extends Object

Utility class intended to simplify RSA encryption / decryption.

Field Summary

Fields

Modifier and Type	Field	Description
static int	MAX_ENCRYPTED_DATA_SIZE
static int	MAX_NON_ASCII_ENCRYPTED_DATA_SIZE

Method Summary

Modifier and Type	Method	Description
static String	decryptData(String hexEncoded)	Decrypts hex encoded byte array with help of RSA private key.
static String	decryptWebRequestData(String hexEncoded)	Decrypts hex encoded JavaScript encrypted data.
static String	encryptData(String plain)	Encrypts specified string, and returns hex representation of the encrypted data
static String	encryptData(String plain, PublicKey pubKey)	Encrypts data using the specified public key using default system charset
static String	encryptData(String plain, PublicKey pubKey, Charset charset)	Encrypts data using the specified public key using the given charset
static String	encryptDataForWeb(String plain)	Encrypts specified string, and returns hex representation of the encrypted data.
static void	generateKeys()	Generates new public and private keys and stores them in static fields.
static String	getHexEncodedPublicKey()	Returns hex representation of the public key
static String	getHexEncodedPublicKeyExponent()	Returns hex representation of the public key exponent
static PublicKey	recreateKey(String hexModulus, String hexExponent)	Recreates public key from hex encoded modulus & exponent.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MAX_ENCRYPTED_DATA_SIZE

public static final int MAX_ENCRYPTED_DATA_SIZE

See Also:

Constant Field Values

MAX_NON_ASCII_ENCRYPTED_DATA_SIZE

public static final int MAX_NON_ASCII_ENCRYPTED_DATA_SIZE

See Also:

Constant Field Values

Method Detail

generateKeys

public static void generateKeys()

Generates new public and private keys and stores them in static fields.

decryptData

public static String decryptData(String hexEncoded)
                          throws DecryptionFailedException

Decrypts hex encoded byte array with help of RSA private key.

Parameters:

hexEncoded - hex encoded encrypted data

Returns:

decrypted string

Throws:

DecryptionFailedException - if decryption failed

decryptWebRequestData

@Nullable
public static String decryptWebRequestData(String hexEncoded)
                                    throws DecryptionFailedException

Decrypts hex encoded JavaScript encrypted data.

Parameters:

hexEncoded - hex encoded encrypted byte array

Returns:

decrypted string

Throws:

DecryptionFailedException - if decryption failed

encryptData

@Nullable
public static String encryptData(String plain)
                          throws EncryptionFailedException

Encrypts specified string, and returns hex representation of the encrypted data

Parameters:

plain - text to encrypt

Returns:

hex representation of the encrypted data

Throws:

EncryptionFailedException - if encryption failed

encryptDataForWeb

public static String encryptDataForWeb(String plain)
                                throws EncryptionFailedException

Encrypts specified string, and returns hex representation of the encrypted data. It differs from encryptData(String) in that it stores length of the encrypted string as a last byte into byte array before encryption

Parameters:

plain - text to encrypt

Returns:

hex representation of the encrypted data

Throws:

EncryptionFailedException - if encryption failed

encryptData

@Nullable
public static String encryptData(String plain,
                                 PublicKey pubKey)
                          throws EncryptionFailedException

Encrypts data using the specified public key using default system charset

Parameters:

plain - text to encrypt

pubKey - public key

Returns:

data encrypted with specified public key in hex form

Throws:

EncryptionFailedException - if encryption failed

encryptData

@Nullable
public static String encryptData(String plain,
                                 PublicKey pubKey,
                                 Charset charset)
                          throws EncryptionFailedException,
                                 UnsupportedEncodingException

Encrypts data using the specified public key using the given charset

Parameters:

plain - text to encrypt

pubKey - public key

charset - the Charset to be used to encode

Returns:

data encrypted with specified public key in hex form

Throws:

EncryptionFailedException - if encryption failed

UnsupportedEncodingException

getHexEncodedPublicKey

public static String getHexEncodedPublicKey()

Returns hex representation of the public key

Returns:

hex representation of the public key

getHexEncodedPublicKeyExponent

public static String getHexEncodedPublicKeyExponent()

Returns hex representation of the public key exponent

Returns:

hex representation of the public key exponent

recreateKey

public static PublicKey recreateKey(String hexModulus,
                                    String hexExponent)
                             throws InvalidKeyException

Recreates public key from hex encoded modulus & exponent.

Parameters:

hexModulus - hex encoded modulus

hexExponent - hex encoded exponent

Returns:

recreated public key

Throws:

InvalidKeyException - if key recreation failed