Package pro.gravit.utils.helper

Class SecurityHelper

java.lang.Object

pro.gravit.utils.helper.SecurityHelper

public final class SecurityHelper
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	SecurityHelper.DigestAlgorithm

Field Summary

Fields

Modifier and Type	Field	Description
static final String	AES_CIPHER_ALGO
static final int	AES_KEY_LENGTH
static final int	CRYPTO_MAX_LENGTH
static final String	EC_ALGO
static final String	EC_CURVE
static final String	EC_SIGN_ALGO
static final String	HEX
static final String	RSA_ALGO
static final String	RSA_CIPHER_ALGO
static final int	RSA_KEY_LENGTH
static final int	RSA_KEY_LENGTH_BITS
static final String	RSA_SIGN_ALGO
static final int	TOKEN_LENGTH
static final int	TOKEN_STRING_LENGTH

Method Summary

Modifier and Type	Method	Description
static byte[]	decrypt(byte[] raw, byte[] encrypted)
static byte[]	decrypt(String seed, byte[] encrypted)
static byte[]	digest(SecurityHelper.DigestAlgorithm algo, byte[] bytes)
static byte[]	digest(SecurityHelper.DigestAlgorithm algo, InputStream input)
static byte[]	digest(SecurityHelper.DigestAlgorithm algo, String s)
static byte[]	digest(SecurityHelper.DigestAlgorithm algo, URL url)
static byte[]	digest(SecurityHelper.DigestAlgorithm algo, Path file)
static byte[]	encrypt(byte[] raw, byte[] clear)
static byte[]	encrypt(String seed, byte[] cleartext)
static byte[]	encrypt(String seed, String cleartext)
static byte[]	fromHex(String hexString)
static KeyPair	genECDSAKeyPair(SecureRandom random)
static KeyPair	genRSAKeyPair(SecureRandom random)
static byte[]	getAESKey(byte[] seed)
static boolean	isValidSign(byte[] bytes, byte[] sign, ECPublicKey publicKey)
static boolean	isValidSign(byte[] bytes, byte[] sign, RSAPublicKey publicKey)
static boolean	isValidSign(InputStream input, byte[] sign, ECPublicKey publicKey)
static boolean	isValidSign(InputStream input, byte[] sign, RSAPublicKey publicKey)
static boolean	isValidToken(CharSequence token)
static Cipher	newAESDecryptCipher(byte[] key)
static Cipher	newAESEncryptCipher(byte[] key)
static Cipher	newCipher(String algo)
static MessageDigest	newDigest(SecurityHelper.DigestAlgorithm algo)
static Signature	newECSignSignature(ECPrivateKey key)
static Signature	newECVerifySignature(ECPublicKey key)
static SecureRandom	newRandom()
static Cipher	newRSADecryptCipher(RSAPrivateKey privateKey)
static Cipher	newRSAEncryptCipher(RSAPublicKey publicKey)
static Signature	newRSASignSignature(RSAPrivateKey key)
static Signature	newRSAVerifySignature(RSAPublicKey key)
static byte[]	randomAESKey()
static byte[]	randomAESKey(Random random)
static byte[]	randomBytes(int length)
static byte[]	randomBytes(Random random, int length)
static String	randomStringAESKey()
static String	randomStringAESKey(Random random)
static String	randomStringToken()
static String	randomStringToken(Random random)
static byte[]	randomToken()
static byte[]	randomToken(Random random)
static byte[]	sign(byte[] bytes, ECPrivateKey privateKey)
static byte[]	sign(byte[] bytes, RSAPrivateKey privateKey)
static String	toHex(byte[] bytes)
static ECPrivateKey	toPrivateECDSAKey(byte[] bytes)
static RSAPrivateKey	toPrivateRSAKey(byte[] bytes)
static ECPublicKey	toPublicECDSAKey(byte[] bytes)
static RSAPublicKey	toPublicRSAKey(byte[] bytes)
static void	verifySign(byte[] bytes, byte[] sign, ECPublicKey publicKey)
static void	verifySign(byte[] bytes, byte[] sign, RSAPublicKey publicKey)
static void	verifySign(InputStream input, byte[] sign, ECPublicKey publicKey)
static void	verifySign(InputStream input, byte[] sign, RSAPublicKey publicKey)
static String	verifyToken(String token)

Methods inherited from class java.lang.Object

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

Field Details

EC_ALGO

public static final String EC_ALGO

See Also:

• Constant Field Values

EC_CURVE

public static final String EC_CURVE

See Also:

• Constant Field Values

EC_SIGN_ALGO

public static final String EC_SIGN_ALGO

See Also:

• Constant Field Values

TOKEN_LENGTH

public static final int TOKEN_LENGTH

See Also:

• Constant Field Values

RSA_ALGO

public static final String RSA_ALGO

See Also:

• Constant Field Values

RSA_SIGN_ALGO

public static final String RSA_SIGN_ALGO

See Also:

• Constant Field Values

RSA_CIPHER_ALGO

public static final String RSA_CIPHER_ALGO

See Also:

• Constant Field Values

AES_CIPHER_ALGO

public static final String AES_CIPHER_ALGO

See Also:

• Constant Field Values

AES_KEY_LENGTH

public static final int AES_KEY_LENGTH

See Also:

• Constant Field Values

TOKEN_STRING_LENGTH

public static final int TOKEN_STRING_LENGTH

See Also:

• Constant Field Values

RSA_KEY_LENGTH_BITS

public static final int RSA_KEY_LENGTH_BITS

See Also:

• Constant Field Values

RSA_KEY_LENGTH

public static final int RSA_KEY_LENGTH

See Also:

• Constant Field Values

CRYPTO_MAX_LENGTH

public static final int CRYPTO_MAX_LENGTH

See Also:

• Constant Field Values

HEX

public static final String HEX

See Also:

• Constant Field Values

Method Details

digest

public static byte[] digest(SecurityHelper.DigestAlgorithm algo,
 byte[] bytes)

digest

public static byte[] digest(SecurityHelper.DigestAlgorithm algo,
 InputStream input)
                     throws IOException

Throws:

IOException

digest

public static byte[] digest(SecurityHelper.DigestAlgorithm algo,
 Path file)
                     throws IOException

Throws:

IOException

digest

public static byte[] digest(SecurityHelper.DigestAlgorithm algo,
 String s)

digest

public static byte[] digest(SecurityHelper.DigestAlgorithm algo,
 URL url)
                     throws IOException

Throws:

IOException

genECDSAKeyPair

public static KeyPair genECDSAKeyPair(SecureRandom random)

genRSAKeyPair

public static KeyPair genRSAKeyPair(SecureRandom random)

isValidSign

public static boolean isValidSign(byte[] bytes,
 byte[] sign,
 ECPublicKey publicKey)
                           throws SignatureException

Throws:

SignatureException

isValidSign

public static boolean isValidSign(InputStream input,
 byte[] sign,
 ECPublicKey publicKey)
                           throws IOException,
SignatureException

Throws:

IOException

SignatureException

isValidSign

public static boolean isValidSign(byte[] bytes,
 byte[] sign,
 RSAPublicKey publicKey)
                           throws SignatureException

Throws:

SignatureException

isValidSign

public static boolean isValidSign(InputStream input,
 byte[] sign,
 RSAPublicKey publicKey)
                           throws IOException,
SignatureException

Throws:

IOException

SignatureException

isValidToken

public static boolean isValidToken(CharSequence token)

newCipher

public static Cipher newCipher(String algo)

newDigest

public static MessageDigest newDigest(SecurityHelper.DigestAlgorithm algo)

newRandom

public static SecureRandom newRandom()

newECSignSignature

public static Signature newECSignSignature(ECPrivateKey key)

newRSASignSignature

public static Signature newRSASignSignature(RSAPrivateKey key)

newECVerifySignature

public static Signature newECVerifySignature(ECPublicKey key)

newRSAVerifySignature

public static Signature newRSAVerifySignature(RSAPublicKey key)

randomBytes

public static byte[] randomBytes(int length)

randomBytes

public static byte[] randomBytes(Random random,
 int length)

randomStringToken

public static String randomStringToken()

randomStringToken

public static String randomStringToken(Random random)

randomToken

public static byte[] randomToken()

randomToken

public static byte[] randomToken(Random random)

randomStringAESKey

public static String randomStringAESKey()

randomStringAESKey

public static String randomStringAESKey(Random random)

randomAESKey

public static byte[] randomAESKey()

randomAESKey

public static byte[] randomAESKey(Random random)

sign

public static byte[] sign(byte[] bytes,
 ECPrivateKey privateKey)

sign

public static byte[] sign(byte[] bytes,
 RSAPrivateKey privateKey)

toHex

public static String toHex(byte[] bytes)

toPublicECDSAKey

public static ECPublicKey toPublicECDSAKey(byte[] bytes)
                                    throws InvalidKeySpecException

Throws:

InvalidKeySpecException

toPrivateECDSAKey

public static ECPrivateKey toPrivateECDSAKey(byte[] bytes)
                                      throws InvalidKeySpecException

Throws:

InvalidKeySpecException

toPublicRSAKey

public static RSAPublicKey toPublicRSAKey(byte[] bytes)
                                   throws InvalidKeySpecException

Throws:

InvalidKeySpecException

toPrivateRSAKey

public static RSAPrivateKey toPrivateRSAKey(byte[] bytes)
                                     throws InvalidKeySpecException

Throws:

InvalidKeySpecException

verifySign

public static void verifySign(byte[] bytes,
 byte[] sign,
 ECPublicKey publicKey)
                       throws SignatureException

Throws:

SignatureException

verifySign

public static void verifySign(InputStream input,
 byte[] sign,
 ECPublicKey publicKey)
                       throws SignatureException,
IOException

Throws:

SignatureException

IOException

verifySign

public static void verifySign(byte[] bytes,
 byte[] sign,
 RSAPublicKey publicKey)
                       throws SignatureException

Throws:

SignatureException

verifySign

public static void verifySign(InputStream input,
 byte[] sign,
 RSAPublicKey publicKey)
                       throws SignatureException,
IOException

Throws:

SignatureException

IOException

verifyToken

public static String verifyToken(String token)

newRSADecryptCipher

public static Cipher newRSADecryptCipher(RSAPrivateKey privateKey)

newRSAEncryptCipher

public static Cipher newRSAEncryptCipher(RSAPublicKey publicKey)

newAESDecryptCipher

public static Cipher newAESDecryptCipher(byte[] key)

newAESEncryptCipher

public static Cipher newAESEncryptCipher(byte[] key)

encrypt

public static byte[] encrypt(String seed,
 byte[] cleartext)
                      throws Exception

Throws:

Exception

encrypt

public static byte[] encrypt(String seed,
 String cleartext)
                      throws Exception

Throws:

Exception

getAESKey

public static byte[] getAESKey(byte[] seed)
                        throws Exception

Throws:

Exception

encrypt

public static byte[] encrypt(byte[] raw,
 byte[] clear)
                      throws Exception

Throws:

Exception

decrypt

public static byte[] decrypt(byte[] raw,
 byte[] encrypted)
                      throws Exception

Throws:

Exception

decrypt

public static byte[] decrypt(String seed,
 byte[] encrypted)
                      throws Exception

Throws:

Exception

fromHex

public static byte[] fromHex(String hexString)