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Use MessageDigests abstraction in core

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This commit removes the message digest providers in x-plugins by using
the MessageDigests abstraction in core. In particular, this permits the
removal of the use of MessageDigest#clone in x-plugins.

Closes elastic/elasticsearch#1489

Original commit: elastic/x-pack-elasticsearch@6868e6e8ed
This commit is contained in:
Jason Tedor 2016-02-09 09:02:16 -05:00
parent 3a6a1d5dc2
commit 602f67d7c6
1 changed files with 7 additions and 76 deletions
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83
elasticsearch/x-pack/shield/src/main/java/org/elasticsearch/shield/authc/support/Hasher.java
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@ -7,6 +7,7 @@ package org.elasticsearch.shield.authc.support;
import org.elasticsearch.common.Base64;
import org.elasticsearch.common.Randomness;
import org.elasticsearch.common.hash.MessageDigests;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
@ -142,7 +143,7 @@ public enum Hasher {
@Override
public char[] hash(SecuredString text) {
byte[] textBytes = CharArrays.toUtf8Bytes(text.internalChars());
MessageDigest md = SHA1Provider.sha1();
MessageDigest md = MessageDigests.sha1();
md.update(textBytes);
String hash = Base64.encodeBytes(md.digest());
return (SHA1_PREFIX + hash).toCharArray();
@ -155,7 +156,7 @@ public enum Hasher {
return false;
}
byte[] textBytes = CharArrays.toUtf8Bytes(text.internalChars());
MessageDigest md = SHA1Provider.sha1();
MessageDigest md = MessageDigests.sha1();
md.update(textBytes);
String passwd64 = Base64.encodeBytes(md.digest());
String hashNoPrefix = hashStr.substring(SHA1_PREFIX.length());
@ -166,7 +167,7 @@ public enum Hasher {
MD5() {
@Override
public char[] hash(SecuredString text) {
MessageDigest md = MD5Provider.md5();
MessageDigest md = MessageDigests.md5();
md.update(CharArrays.toUtf8Bytes(text.internalChars()));
String hash = Base64.encodeBytes(md.digest());
return (MD5_PREFIX + hash).toCharArray();
@ -179,7 +180,7 @@ public enum Hasher {
return false;
}
hashStr = hashStr.substring(MD5_PREFIX.length());
MessageDigest md = MD5Provider.md5();
MessageDigest md = MessageDigests.md5();
md.update(CharArrays.toUtf8Bytes(text.internalChars()));
String computedHashStr = Base64.encodeBytes(md.digest());
return SecuredString.constantTimeEquals(hashStr, computedHashStr);
@ -189,7 +190,7 @@ public enum Hasher {
SSHA256() {
@Override
public char[] hash(SecuredString text) {
MessageDigest md = SHA256Provider.sha256();
MessageDigest md = MessageDigests.sha256();
md.update(CharArrays.toUtf8Bytes(text.internalChars()));
char[] salt = SaltProvider.salt(8);
md.update(CharArrays.toUtf8Bytes(salt));
@ -209,7 +210,7 @@ public enum Hasher {
}
hashStr = hashStr.substring(SSHA256_PREFIX.length());
char[] saltAndHash = hashStr.toCharArray();
MessageDigest md = SHA256Provider.sha256();
MessageDigest md = MessageDigests.sha256();
md.update(CharArrays.toUtf8Bytes(text.internalChars()));
md.update(new String(saltAndHash, 0, 8).getBytes(StandardCharsets.UTF_8));
String computedHash = Base64.encodeBytes(md.digest());
@ -279,76 +280,6 @@ public enum Hasher {
public abstract boolean verify(SecuredString data, char[] hash);
static final class MD5Provider {
private static final MessageDigest digest;
static {
try {
digest = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException e) {
throw new IllegalStateException("unsupported digest algorithm [MD5]. Please verify you are running on Java 7 or above", e);
}
}
private static MessageDigest md5() {
try {
MessageDigest md5 = (MessageDigest) digest.clone();
md5.reset();
return md5;
} catch (CloneNotSupportedException e) {
throw new IllegalStateException("could not create MD5 digest", e);
}
}
}
static final class SHA1Provider {
private static final MessageDigest digest;
static {
try {
digest = MessageDigest.getInstance("SHA-1");
} catch (NoSuchAlgorithmException e) {
throw new IllegalStateException("unsupported digest algorithm [SHA-1]", e);
}
}
private static MessageDigest sha1() {
try {
MessageDigest sha1 = (MessageDigest) digest.clone();
sha1.reset();
return sha1;
} catch (CloneNotSupportedException e) {
throw new IllegalStateException("could not create SHA-1 digest", e);
}
}
}
static final class SHA256Provider {
private static final MessageDigest digest;
static {
try {
digest = MessageDigest.getInstance("SHA-256");
} catch (NoSuchAlgorithmException e) {
String msg = "unsupported digest algorithm [SHA-256]. Please verify you are running on Java 7 or above";
throw new IllegalStateException(msg, e);
}
}
private static MessageDigest sha256() {
try {
MessageDigest sha = (MessageDigest) digest.clone();
sha.reset();
return sha;
} catch (CloneNotSupportedException e) {
throw new IllegalStateException("could not create [SHA-256] digest", e);
}
}
}
static final class SaltProvider {
static final char[] ALPHABET = new char[]{