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8179098: Crypto AES/ECB encryption/decryption performance regression (introduced in jdk9b73)

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Do bounds check per encryption/decryption call instead of per block

Reviewed-by: ascarpino, redestad
This commit is contained in:
Valerie Peng 2018-07-13 02:36:42 +00:00
parent b8d80042d7
commit b0af57a018
9 changed files with 137 additions and 73 deletions
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16
src/java.base/share/classes/com/sun/crypto/provider/CipherFeedback.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -27,6 +27,7 @@ package com.sun.crypto.provider;
import java.security.InvalidKeyException;
import java.security.ProviderException;
import sun.security.util.ArrayUtil;
/**
* This class represents ciphers in cipher-feedback (CFB) mode.
@ -149,9 +150,9 @@ final class CipherFeedback extends FeedbackCipher {
*/
int encrypt(byte[] plain, int plainOffset, int plainLen,
byte[] cipher, int cipherOffset) {
if ((plainLen % numBytes) != 0) {
throw new ProviderException("Internal error in input buffering");
}
ArrayUtil.blockSizeCheck(plainLen, numBytes);
ArrayUtil.nullAndBoundsCheck(plain, plainOffset, plainLen);
ArrayUtil.nullAndBoundsCheck(cipher, cipherOffset, plainLen);
int nShift = blockSize - numBytes;
int loopCount = plainLen / numBytes;
@ -225,9 +226,10 @@ final class CipherFeedback extends FeedbackCipher {
*/
int decrypt(byte[] cipher, int cipherOffset, int cipherLen,
byte[] plain, int plainOffset) {
if ((cipherLen % numBytes) != 0) {
throw new ProviderException("Internal error in input buffering");
}
ArrayUtil.blockSizeCheck(cipherLen, numBytes);
ArrayUtil.nullAndBoundsCheck(cipher, cipherOffset, cipherLen);
ArrayUtil.nullAndBoundsCheck(plain, plainOffset, cipherLen);
int nShift = blockSize - numBytes;
int loopCount = cipherLen / numBytes;