fm.liveswitch.RsaCrypto Class Reference

RSA-based cryptographic functions. More...

Static Public Member Functions
static int	getDefaultKeySize ()
static void	setDefaultKeySize (int defaultKeySize)
static RsaKey	createKey ()
	Creates an RSA key. More...
static RsaKey	createKey (int keySize)
	Creates an RSA key. More...
static PrivateKey	getPrivateKey (RsaKey key) throws Exception
static PublicKey	getPublicKey (RsaKey key) throws Exception
static byte[]	signMd5Sha1 (byte[] md5sha1, RsaKey privateKey)
	Signs an MD5/SHA-1 hash using a specified key. More...
static boolean	verifyMd5Sha1 (byte[] md5sha1, byte[] signature, RsaKey publicKey)
	Verifies an MD5/SHA-1 hash using a specified key and signature. More...
static byte[]	signSha1 (byte[] sha1, RsaKey privateKey)
	Signs a SHA-1 hash using a specified key. More...
static boolean	verifySha1 (byte[] sha1, byte[] signature, RsaKey publicKey)
	Verifies a signature using a specified key and SHA-1 hash. More...
static byte[]	signSha256 (byte[] sha256, RsaKey privateKey)
	Signs a SHA-256 hash using a specified key. More...
static boolean	verifySha256 (byte[] sha256, byte[] signature, RsaKey publicKey)
	Verifies a signature using a specified key and SHA-256 hash. More...
static byte[]	encrypt (byte[] b, RsaKey publicKey)
	Encrypts a value using a specified public key. More...
static byte[]	decrypt (byte[] b, RsaKey privateKey)
	Decrypts a value using a specified private key. More...

Detailed Description

RSA-based cryptographic functions.

Member Function Documentation

createKey() [1/2]

static RsaKey fm.liveswitch.RsaCrypto.createKey ( )

static

Creates an RSA key.

Returns

An RSA key.

createKey() [2/2]

static RsaKey fm.liveswitch.RsaCrypto.createKey ( int  keySize )

static

Creates an RSA key.

Returns

An RSA key.

decrypt()

static byte [] fm.liveswitch.RsaCrypto.decrypt ( byte[]  b, RsaKey  privateKey  )

static

Decrypts a value using a specified private key.

Parameters

b	The input byte array.
privateKey	The private key.

Returns

The output byte array.

encrypt()

static byte [] fm.liveswitch.RsaCrypto.encrypt ( byte[]  b, RsaKey  publicKey  )

static

Encrypts a value using a specified public key.

Parameters

b	The input byte array.
publicKey	The public key.

Returns

The output byte array.

getDefaultKeySize()

static int fm.liveswitch.RsaCrypto.getDefaultKeySize ( )

static

getPrivateKey()

static PrivateKey fm.liveswitch.RsaCrypto.getPrivateKey ( RsaKey  key ) throws Exception

static

getPublicKey()

static PublicKey fm.liveswitch.RsaCrypto.getPublicKey ( RsaKey  key ) throws Exception

static

setDefaultKeySize()

static void fm.liveswitch.RsaCrypto.setDefaultKeySize ( int  defaultKeySize )

static

signMd5Sha1()

static byte [] fm.liveswitch.RsaCrypto.signMd5Sha1 ( byte[]  md5sha1, RsaKey  privateKey  )

static

Signs an MD5/SHA-1 hash using a specified key.

Parameters

md5sha1	The MD5/SHA-1 hash.
privateKey	The private key.

Returns

The output byte array.

signSha1()

static byte [] fm.liveswitch.RsaCrypto.signSha1 ( byte[]  sha1, RsaKey  privateKey  )

static

Signs a SHA-1 hash using a specified key.

Parameters

sha1	The SHA-1 hash.
privateKey	The private key.

Returns

The output byte array.

signSha256()

static byte [] fm.liveswitch.RsaCrypto.signSha256 ( byte[]  sha256, RsaKey  privateKey  )

static

Signs a SHA-256 hash using a specified key.

Parameters

sha256	The SHA-256 hash.
privateKey	The private key.

Returns

The output byte array.

verifyMd5Sha1()

static boolean fm.liveswitch.RsaCrypto.verifyMd5Sha1 ( byte[]  md5sha1, byte[]  signature, RsaKey  publicKey  )

static

Verifies an MD5/SHA-1 hash using a specified key and signature.

Parameters

md5sha1	The MD5/SHA-1 hash.
signature	The input signature.
publicKey	The public key.

Returns

true if the signature is valid; otherwise, false.

verifySha1()

static boolean fm.liveswitch.RsaCrypto.verifySha1 ( byte[]  sha1, byte[]  signature, RsaKey  publicKey  )

static

Verifies a signature using a specified key and SHA-1 hash.

Parameters

sha1	The SHA-1 hash.
signature	The input signature.
publicKey	The public key.

Returns

true if the signature is valid; otherwise, false.

verifySha256()

static boolean fm.liveswitch.RsaCrypto.verifySha256 ( byte[]  sha256, byte[]  signature, RsaKey  publicKey  )

static

Verifies a signature using a specified key and SHA-256 hash.

Parameters

sha256	The SHA-256 hash.
signature	The input signature.
publicKey	The public key.

Returns

true if the signature is valid; otherwise, false.