Package org.elasticsearch.common.hash

Class MessageDigests

java.lang.Object

org.elasticsearch.common.hash.MessageDigests

public final class MessageDigests
extends java.lang.Object

This MessageDigests class provides convenience methods for obtaining thread local MessageDigest instances for MD5, SHA-1, and SHA-256 message digests.

Constructor Summary

Constructors

Constructor	Description
MessageDigests()

Method Summary

Modifier and Type	Method	Description
static java.security.MessageDigest	md5()	Returns a MessageDigest instance for MD5 digests; note that the instance returned is thread local and must not be shared amongst threads.
static java.security.MessageDigest	sha1()	Returns a MessageDigest instance for SHA-1 digests; note that the instance returned is thread local and must not be shared amongst threads.
static java.security.MessageDigest	sha256()	Returns a MessageDigest instance for SHA-256 digests; note that the instance returned is thread local and must not be shared amongst threads.
static java.lang.String	toHexString(byte[] bytes)	Format a byte array as a hex string.

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageDigests

public MessageDigests()

Method Detail

md5

public static java.security.MessageDigest md5()

Returns a MessageDigest instance for MD5 digests; note that the instance returned is thread local and must not be shared amongst threads.

Returns:

a thread local MessageDigest instance that provides MD5 message digest functionality.

sha1

public static java.security.MessageDigest sha1()

Returns a MessageDigest instance for SHA-1 digests; note that the instance returned is thread local and must not be shared amongst threads.

Returns:

a thread local MessageDigest instance that provides SHA-1 message digest functionality.

sha256

public static java.security.MessageDigest sha256()

Returns a MessageDigest instance for SHA-256 digests; note that the instance returned is thread local and must not be shared amongst threads.

Returns:

a thread local MessageDigest instance that provides SHA-256 message digest functionality.

toHexString

public static java.lang.String toHexString(byte[] bytes)

Format a byte array as a hex string.

Parameters:

bytes - the input to be represented as hex.

Returns:

a hex representation of the input as a String.