com.safeapi
Class CryptoSym

java.lang.Object
  com.safeapi.CryptoCommon
      com.safeapi.CryptoSym

public final class CryptoSym

extends CryptoCommon

Symmetric Cryptography APIs Module

Constructor Summary

CryptoSym()
Loads an instance of CryptoSym.

Method Summary

byte[]	decryptBuffer(String sKeyID, char[] caPassphrase, byte[] bBuffer) Decrypts a buffer with a secret key
byte[]	decryptBufferKey(String sAlgorithm, char[] caHexaKey, byte[] bBuffer) Decrypts a buffer with the key in hexadecimal format
byte[]	decryptBufferRawKey(String sAlgorithm, byte[] bSecretKey, byte[] bInitVector, byte[] bBuffer) Decrypts a buffer with the provided bytes used as key
void	decryptFile(String sKeyID, char[] caPassphrase, String sInputPath, String sOutputPath) Decrypts the specified file with a Key ID.
byte[]	encryptBuffer(String sKeyID, char[] caPassphrase, byte[] bBuffer) Encrypts a buffer with a secret key
byte[]	encryptBufferKey(String sAlgorithm, char[] caHexaKey, byte[] bBuffer) Encrypts a buffer with an hexadecimal key
byte[]	encryptBufferRawKey(String sAlgorithm, byte[] bSecretKey, byte[] bInitVector, byte[] bBuffer) Encrypts a buffer with the provided bytes used as key
void	encryptFile(String sKeyID, char[] caPassphrase, String sInputPath, String sOutputPath) Encrypt the specified file with a Key ID.
void	genSecretKey(String sAlgorithm, char[] caPassphrase, int nLength, byte[] bSeed, String sEmailSign, int nIndex) Generates a secret key for requested algorithm and length and with your seed.
String	getSecretKey(String sAlgorithm, char[] caPassphrase, String sEmail, int nIndex) Gets a secret key value in hexadecimal.

Methods inherited from class com.safeapi.CryptoCommon

createSeedFile, getParameter, getRandomBytes, getRawError, getRegisteredError, getVersion, isOperationOK, setParameter, wipe

Methods inherited from class java.lang.Object

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

Constructor Detail

CryptoSym

public CryptoSym()

Loads an instance of CryptoSym.

Method Detail

genSecretKey

public void genSecretKey(String sAlgorithm,
                         char[] caPassphrase,
                         int nLength,
                         byte[] bSeed,
                         String sEmailSign,
                         int nIndex)

Generates a secret key for requested algorithm and length and with your seed. Key is then encrypted with your passphrase and stored.

Parameters:

sAlgorithm - The symmetric algorithm name (IDEA, Blowfish, CAST-128)

caPassphrase - The secret key passphrase protection

nLength - The length for the key to generate (128 bits)

bSeed - The seed for the random used for generation

sEmailSign - The Email of the owner

nIndex - The Index of this key

getSecretKey

public String getSecretKey(String sAlgorithm,
                           char[] caPassphrase,
                           String sEmail,
                           int nIndex)

Gets a secret key value in hexadecimal.

Parameters:

sAlgorithm - The symmetric algorithm name (IDEA, Blowfish, CAST-128)

caPassphrase - The secret key passphrase protection

sEmail - The Email of the owner

nIndex - The Index of this key

encryptBuffer

public byte[] encryptBuffer(String sKeyID,
                            char[] caPassphrase,
                            byte[] bBuffer)

Encrypts a buffer with a secret key

Parameters:

sKeyID - The Key ID

caPassphrase - The secret key passphrase protection

bBuffer - The buffer to encrypt

Returns:

The encrypted buffer in hexadecimal value

encryptBufferKey

public byte[] encryptBufferKey(String sAlgorithm,
                               char[] caHexaKey,
                               byte[] bBuffer)

Encrypts a buffer with an hexadecimal key

Parameters:

sAlgorithm - The encryption algorithm

caHexaKey - The key in hexadecimal format

bBuffer - The buffer to encrypt

Returns:

The encrypted buffer

encryptBufferRawKey

public byte[] encryptBufferRawKey(String sAlgorithm,
                                  byte[] bSecretKey,
                                  byte[] bInitVector,
                                  byte[] bBuffer)

Encrypts a buffer with the provided bytes used as key

Parameters:

sAlgorithm - The encryption algorithm

bSecretKey - The bytes used as secret key

bInitVector - The initalization vector

bBuffer - The buffer to encrypt

Returns:

The encrypted buffer

decryptBuffer

public byte[] decryptBuffer(String sKeyID,
                            char[] caPassphrase,
                            byte[] bBuffer)

Decrypts a buffer with a secret key

Parameters:

sKeyID - The Key ID

caPassphrase - The secret key passphrase protection

bBuffer - The buffer to decrypt

Returns:

The decrypted buffer

decryptBufferKey

public byte[] decryptBufferKey(String sAlgorithm,
                               char[] caHexaKey,
                               byte[] bBuffer)

Decrypts a buffer with the key in hexadecimal format

Parameters:

sAlgorithm - The encryption algorithm

caHexaKey - the key in hexadecimal format

bBuffer - The buffer to decrypt

Returns:

The plain/decrypted buffer

decryptBufferRawKey

public byte[] decryptBufferRawKey(String sAlgorithm,
                                  byte[] bSecretKey,
                                  byte[] bInitVector,
                                  byte[] bBuffer)

Decrypts a buffer with the provided bytes used as key

Parameters:

sAlgorithm - The encryption algorithm

bSecretKey - The bytes used as secret key

bInitVector - The initalization vector

bBuffer - The buffer to encrypt

Returns:

The decrypted buffer

encryptFile

public void encryptFile(String sKeyID,
                        char[] caPassphrase,
                        String sInputPath,
                        String sOutputPath)

Encrypt the specified file with a Key ID.

Parameters:

sKeyID - The Key ID

caPassphrase - The secret key passphrase protection

sInputPath - The full name of the file to encrypt

sOutputPath - The encrypted file to create

decryptFile

public void decryptFile(String sKeyID,
                        char[] caPassphrase,
                        String sInputPath,
                        String sOutputPath)

Decrypts the specified file with a Key ID.

Parameters:

sKeyID - The Key ID

caPassphrase - The passphrase for key protection

sInputPath - The full name of the file to decrypt

sOutputPath - The decrypted file to create