diff options
Diffstat (limited to 'libjava/gnu/java/security/jce')
4 files changed, 181 insertions, 1 deletions
diff --git a/libjava/gnu/java/security/jce/prng/SecureRandomAdapter.h b/libjava/gnu/java/security/jce/prng/SecureRandomAdapter.h index 71b29f7734d..7495038c735 100644 --- a/libjava/gnu/java/security/jce/prng/SecureRandomAdapter.h +++ b/libjava/gnu/java/security/jce/prng/SecureRandomAdapter.h @@ -39,12 +39,17 @@ class gnu::java::security::jce::prng::SecureRandomAdapter : public ::java::secur public: // actually protected SecureRandomAdapter(::java::lang::String *); public: + static JArray< jbyte > * getSeed(jint); virtual JArray< jbyte > * engineGenerateSeed(jint); virtual void engineNextBytes(JArray< jbyte > *); virtual void engineSetSeed(JArray< jbyte > *); private: - ::gnu::java::security::prng::MDGenerator * __attribute__((aligned(__alignof__( ::java::security::SecureRandomSpi)))) adaptee; + jboolean __attribute__((aligned(__alignof__( ::java::security::SecureRandomSpi)))) isSeeded; + ::gnu::java::security::prng::MDGenerator * adaptee; ::java::lang::String * mdName; + static ::java::util::logging::Logger * logger; + static ::java::lang::String * SECURERANDOM_SOURCE; + static ::java::lang::String * JAVA_SECURITY_EGD; public: static ::java::lang::Class class$; }; diff --git a/libjava/gnu/java/security/jce/prng/VMSecureRandom.h b/libjava/gnu/java/security/jce/prng/VMSecureRandom.h new file mode 100644 index 00000000000..b24c805141a --- /dev/null +++ b/libjava/gnu/java/security/jce/prng/VMSecureRandom.h @@ -0,0 +1,43 @@ + +// DO NOT EDIT THIS FILE - it is machine generated -*- c++ -*- + +#ifndef __gnu_java_security_jce_prng_VMSecureRandom__ +#define __gnu_java_security_jce_prng_VMSecureRandom__ + +#pragma interface + +#include <java/lang/Object.h> +#include <gcj/array.h> + +extern "Java" +{ + namespace gnu + { + namespace java + { + namespace security + { + namespace jce + { + namespace prng + { + class VMSecureRandom; + } + } + } + } + } +} + +class gnu::java::security::jce::prng::VMSecureRandom : public ::java::lang::Object +{ + +public: // actually package-private + VMSecureRandom(); + static jint generateSeed(JArray< jbyte > *, jint, jint); + static jint natGenerateSeed(JArray< jbyte > *, jint, jint); +public: + static ::java::lang::Class class$; +}; + +#endif // __gnu_java_security_jce_prng_VMSecureRandom__ diff --git a/libjava/gnu/java/security/jce/prng/VMSecureRandom.java b/libjava/gnu/java/security/jce/prng/VMSecureRandom.java new file mode 100644 index 00000000000..62ff8b7aa93 --- /dev/null +++ b/libjava/gnu/java/security/jce/prng/VMSecureRandom.java @@ -0,0 +1,78 @@ +/* VMSecureRandom.java -- random seed generator. + Copyright (C) 2006, 2009 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.java.security.jce.prng; + +/** + * VM-specific methods for generating real (or almost real) random + * seeds. VM implementors should write a version of this class that + * reads random bytes from some system source. + */ +final class VMSecureRandom +{ + + /** + * <p> + * Generate a random seed. Implementations are free to generate + * fewer random bytes than are requested, and leave the remaining + * bytes of the destination buffer as zeros. Implementations SHOULD, + * however, make a best-effort attempt to satisfy the request. + * </p> + * <p> + * The GCJ implementation uses a native method to read bytes from + * a system random source (e.g. /dev/random). + * </p> + * + * @param buffer The destination buffer. + * @param offset The offset in the buffer to start putting bytes. + * @param length The number of random bytes to generate. + * @return the number of bytes generated. + */ + static int generateSeed(byte[] buffer, int offset, int length) + { + if (length < 0) + throw new IllegalArgumentException("length must be nonnegative"); + if (offset < 0 || offset + length > buffer.length) + throw new IndexOutOfBoundsException(); + + return natGenerateSeed(buffer, offset, length); + } + + static native int natGenerateSeed(byte[] buffer, int offset, int length); + +}
\ No newline at end of file diff --git a/libjava/gnu/java/security/jce/prng/natVMSecureRandomPosix.cc b/libjava/gnu/java/security/jce/prng/natVMSecureRandomPosix.cc new file mode 100644 index 00000000000..a44f3f4573b --- /dev/null +++ b/libjava/gnu/java/security/jce/prng/natVMSecureRandomPosix.cc @@ -0,0 +1,54 @@ +// natVMSecureRandomPosix.cc - Native part of VMSecureRandom class for POSIX. + +/* Copyright (C) 2009 Free Software Foundation + + This file is part of libgcj. + +This software is copyrighted work licensed under the terms of the +Libgcj License. Please consult the file "LIBGCJ_LICENSE" for +details. */ + +#include <config.h> + +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> +#include <string.h> +#include <errno.h> + +#include <gcj/cni.h> +#include <java/lang/InternalError.h> +#include <gnu/java/security/jce/prng/VMSecureRandom.h> + +jint +gnu::java::security::jce::prng::VMSecureRandom::natGenerateSeed(jbyteArray byte_array, jint offset, jint length) +{ + int a, fd; + jbyte *bytes = elements (byte_array); + ssize_t count; + + for (a = 0; a < offset; ++a) + bytes++; + fd = open ("/dev/random", O_RDONLY); + + if (fd == -1) + { + jstring oserr = JvNewStringLatin1 (strerror (errno)); + throw new ::java::lang::InternalError + (JvNewStringLatin1 ("Error opening /dev/random: ")->concat(oserr)); + } + + count = read (fd, bytes, length); + close (fd); + + if (count == -1) + { + jstring oserr = JvNewStringLatin1 (strerror (errno)); + throw new ::java::lang::InternalError + (JvNewStringLatin1 ("Error reading /dev/random: ")->concat(oserr)); + } + + return count; +} + |