Package com.peterphi.std.crypto.digest

Class DigestHelper

java.lang.Object

com.peterphi.std.crypto.digest.DigestHelper

public class DigestHelper
extends Object

Where possible implementations should use DigestUtils from commons-codec

Field Summary

Fields

Modifier and Type	Field	Description
static final int	ENCODE_BASE64
static final int	ENCODE_HEX
static final String	MD5
static final String	SHA1

Constructor Summary

Constructors

Constructor	Description
DigestHelper()

Method Summary

Modifier and Type	Method	Description
static long	crc32(File testFile)
static long	crc32(InputStream is)
static String	digest(File testFile, String algorithm, int encoding)
static byte[]	digest(InputStream is, String algorithm)
static String	digest(InputStream is, String algorithm, int encoding)
static String	md5(File testFile)
static String	md5(File testFile, int encoding)
static byte[]	sha1(byte[] plaintext)
static String	sha1(File testFile)
static String	sha1(File testFile, int encoding)
static String	sha1(InputStream is, int encoding)
static String	sha1(String plaintext)
static String	sha1(String plaintext, int encoding)
static byte[]	sha1hmac(byte[] key, byte[] text)
static String	sha1hmac(String key, String plaintext)	Performs HMAC-SHA1 on the UTF-8 byte representation of strings
static String	sha1hmac(String key, String plaintext, int encoding)	Performs HMAC-SHA1 on the UTF-8 byte representation of strings, returning the hexidecimal hash as a result

Methods inherited from class java.lang.Object

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

Field Details

ENCODE_BASE64

public static final int ENCODE_BASE64

See Also:

• Constant Field Values

ENCODE_HEX

public static final int ENCODE_HEX

See Also:

• Constant Field Values

SHA1

public static final String SHA1

See Also:

• Constant Field Values

MD5

public static final String MD5

See Also:

• Constant Field Values

Constructor Details

DigestHelper

public DigestHelper()

Method Details

sha1hmac

public static String sha1hmac(String key,
 String plaintext)

Performs HMAC-SHA1 on the UTF-8 byte representation of strings

Parameters:

key -

plaintext -

Returns:

sha1hmac

public static String sha1hmac(String key,
 String plaintext,
 int encoding)

Performs HMAC-SHA1 on the UTF-8 byte representation of strings, returning the hexidecimal hash as a result

Parameters:

key -

plaintext -

Returns:

sha1hmac

public static byte[] sha1hmac(byte[] key,
 byte[] text)
                       throws IllegalArgumentException

Parameters:

key -

text -

Returns:

Throws:

IllegalArgumentException

sha1

public static byte[] sha1(byte[] plaintext)
                   throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

sha1

public static String sha1(String plaintext)
                   throws IOException,
NoSuchAlgorithmException

Throws:

IOException

NoSuchAlgorithmException

sha1

public static String sha1(String plaintext,
 int encoding)
                   throws IOException,
NoSuchAlgorithmException

Throws:

IOException

NoSuchAlgorithmException

sha1

public static String sha1(File testFile)
                   throws FileNotFoundException,
IOException,
NoSuchAlgorithmException

Throws:

FileNotFoundException

IOException

NoSuchAlgorithmException

sha1

public static String sha1(File testFile,
 int encoding)
                   throws FileNotFoundException,
IOException,
NoSuchAlgorithmException

Throws:

FileNotFoundException

IOException

NoSuchAlgorithmException

sha1

public static String sha1(InputStream is,
 int encoding)
                   throws FileNotFoundException,
IOException,
NoSuchAlgorithmException

Throws:

FileNotFoundException

IOException

NoSuchAlgorithmException

digest

public static String digest(File testFile,
 String algorithm,
 int encoding)
                     throws IOException,
NoSuchAlgorithmException

Throws:

IOException

NoSuchAlgorithmException

digest

public static byte[] digest(InputStream is,
 String algorithm)
                     throws IOException,
NoSuchAlgorithmException

Throws:

IOException

NoSuchAlgorithmException

digest

public static String digest(InputStream is,
 String algorithm,
 int encoding)
                     throws IOException,
NoSuchAlgorithmException

Throws:

IOException

NoSuchAlgorithmException

crc32

public static long crc32(File testFile)
                  throws FileNotFoundException,
IOException

Throws:

FileNotFoundException

IOException

crc32

public static long crc32(InputStream is)
                  throws IOException

Throws:

IOException

md5

public static String md5(File testFile)
                  throws FileNotFoundException,
IOException,
NoSuchAlgorithmException

Throws:

FileNotFoundException

IOException

NoSuchAlgorithmException

md5

public static String md5(File testFile,
 int encoding)
                  throws FileNotFoundException,
IOException,
NoSuchAlgorithmException

Throws:

FileNotFoundException

IOException

NoSuchAlgorithmException