From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- .../gnu/javax/crypto/cipher/IBlockCipher.java | 195 +++++++++++++++++++++ 1 file changed, 195 insertions(+) create mode 100644 libjava/classpath/gnu/javax/crypto/cipher/IBlockCipher.java (limited to 'libjava/classpath/gnu/javax/crypto/cipher/IBlockCipher.java') diff --git a/libjava/classpath/gnu/javax/crypto/cipher/IBlockCipher.java b/libjava/classpath/gnu/javax/crypto/cipher/IBlockCipher.java new file mode 100644 index 000000000..86f8b34e0 --- /dev/null +++ b/libjava/classpath/gnu/javax/crypto/cipher/IBlockCipher.java @@ -0,0 +1,195 @@ +/* IBlockCipher.java -- + Copyright (C) 2001, 2002, 2006 Free Software Foundation, Inc. + +This file is a part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at +your option) any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 +USA + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.javax.crypto.cipher; + +import java.security.InvalidKeyException; +import java.util.Iterator; +import java.util.Map; + +/** + * The basic visible methods of any symmetric key block cipher. + *

+ * A symmetric key block cipher is a function that maps n-bit plaintext blocks + * to n-bit ciphertext blocks; n being the cipher's block size. This + * encryption function is parameterised by a k-bit key, and is invertible. Its + * inverse is the decryption function. + *

+ * Possible initialisation values for an instance of this type are: + *

+ *

+ * IMPLEMENTATION NOTE: Although all the concrete classes in this + * package implement the {@link Cloneable} interface, it is important to note + * here that such an operation DOES NOT clone any session key material + * that may have been used in initialising the source cipher (the instance to be + * cloned). Instead a clone of an already initialised cipher is another instance + * that operates with the same block size but without any knowledge of + * neither key material nor key size. + */ +public interface IBlockCipher + extends Cloneable +{ + /** + * Property name of the block size in which to operate a block cipher. The + * value associated with this property name is taken to be an {@link Integer}. + */ + String CIPHER_BLOCK_SIZE = "gnu.crypto.cipher.block.size"; + /** + * Property name of the user-supplied key material. The value associated to + * this property name is taken to be a byte array. + */ + String KEY_MATERIAL = "gnu.crypto.cipher.key.material"; + + /** + * Returns the canonical name of this instance. + * + * @return the canonical name of this instance. + */ + String name(); + + /** + * Returns the default value, in bytes, of the algorithm's block size. + * + * @return the default value, in bytes, of the algorithm's block size. + */ + int defaultBlockSize(); + + /** + * Returns the default value, in bytes, of the algorithm's key size. + * + * @return the default value, in bytes, of the algorithm's key size. + */ + int defaultKeySize(); + + /** + * Returns an {@link Iterator} over the supported block sizes. Each element + * returned by this object is an {@link Integer}. + * + * @return an {@link Iterator} over the supported block sizes. + */ + Iterator blockSizes(); + + /** + * Returns an {@link Iterator} over the supported key sizes. Each element + * returned by this object is an {@link Integer}. + * + * @return an {@link Iterator} over the supported key sizes. + */ + Iterator keySizes(); + + /** + * Returns a clone of this instance. + * + * @return a clone copy of this instance. + */ + Object clone(); + + /** + * Initialises the algorithm with designated attributes. Permissible names and + * values are described in the class documentation above. + * + * @param attributes a set of name-value pairs that describes the desired + * future behaviour of this instance. + * @exception InvalidKeyException if the key data is invalid. + * @exception IllegalStateException if the instance is already initialised. + * @see #KEY_MATERIAL + * @see #CIPHER_BLOCK_SIZE + */ + void init(Map attributes) throws InvalidKeyException, IllegalStateException; + + /** + * Returns the currently set block size for this instance. + * + * @return the current block size for this instance. + * @exception IllegalStateException if the instance is not initialised. + */ + int currentBlockSize() throws IllegalStateException; + + /** + * Resets the algorithm instance for re-initialisation and use with other + * characteristics. This method always succeeds. + */ + void reset(); + + /** + * Encrypts exactly one block of plaintext. + * + * @param in the plaintext. + * @param inOffset index of in from which to start considering + * data. + * @param out the ciphertext. + * @param outOffset index of out from which to store result. + * @exception IllegalStateException if the instance is not initialised. + */ + void encryptBlock(byte[] in, int inOffset, byte[] out, int outOffset) + throws IllegalStateException; + + /** + * Decrypts exactly one block of ciphertext. + * + * @param in the plaintext. + * @param inOffset index of in from which to start considering + * data. + * @param out the ciphertext. + * @param outOffset index of out from which to store result. + * @exception IllegalStateException if the instance is not initialised. + */ + void decryptBlock(byte[] in, int inOffset, byte[] out, int outOffset) + throws IllegalStateException; + + /** + * A correctness test that consists of basic symmetric encryption / + * decryption test(s) for all supported block and key sizes, as well as one + * (1) variable key Known Answer Test (KAT). + * + * @return true if the implementation passes simple + * correctness tests. Returns false otherwise. + */ + boolean selfTest(); +} -- cgit v1.2.3