scrypt-1.2.1/000755 001751 001751 00000000000 13047536521 014501 5ustar00cpercivacperciva000000 000000 scrypt-1.2.1/autotools/000755 001751 001751 00000000000 13047536511 016531 5ustar00cpercivacperciva000000 000000 scrypt-1.2.1/scrypt_platform.h000644 001751 001751 00000000407 13047536511 020102 0ustar00cpercivacperciva000000 000000 #ifndef _SCRYPT_PLATFORM_H_ #define _SCRYPT_PLATFORM_H_ #if defined(CONFIG_H_FILE) #include CONFIG_H_FILE #elif defined(HAVE_CONFIG_H) #include "config.h" #else #error Need either CONFIG_H_FILE or HAVE_CONFIG_H defined. #endif #endif /* !_SCRYPT_PLATFORM_H_ */ scrypt-1.2.1/main.c000644 001751 001751 00000012724 13047536511 015576 0ustar00cpercivacperciva000000 000000 /*- * Copyright 2009 Colin Percival * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include "scrypt_platform.h" #include #include #include #include #include "getopt.h" #include "humansize.h" #include "insecure_memzero.h" #include "readpass.h" #include "scryptenc.h" #include "warnp.h" static void usage(void) { fprintf(stderr, "usage: scrypt {enc | dec} [-f] [-M maxmem]" " [-m maxmemfrac]\n" " [-t maxtime] [-v] [-P] infile [outfile]\n" " scrypt --version\n"); exit(1); } int main(int argc, char *argv[]) { FILE * infile; FILE * outfile; int devtty = 1; int dec = 0; size_t maxmem = 0; int force_resources = 0; uint64_t maxmem64; double maxmemfrac = 0.5; double maxtime = 300.0; const char * ch; char * passwd; int rc; int verbose = 0; WARNP_INIT; /* We should have "enc" or "dec" first. */ if (argc < 2) usage(); if (strcmp(argv[1], "enc") == 0) { maxmem = 0; maxmemfrac = 0.125; maxtime = 5.0; } else if (strcmp(argv[1], "dec") == 0) { dec = 1; } else if (strcmp(argv[1], "--version") == 0) { fprintf(stdout, "scrypt %s\n", PACKAGE_VERSION); exit(0); } else { warn0("First argument must be 'enc' or 'dec'.\n"); usage(); } argc--; argv++; /* Parse arguments. */ while ((ch = GETOPT(argc, argv)) != NULL) { GETOPT_SWITCH(ch) { GETOPT_OPT("-f"): force_resources = 1; break; GETOPT_OPTARG("-M"): if (humansize_parse(optarg, &maxmem64)) { warn0("Could not parse the parameter to -M."); exit(1); } if (maxmem64 > SIZE_MAX) { warn0("The parameter to -M is too large."); exit(1); } maxmem = (size_t)maxmem64; break; GETOPT_OPTARG("-m"): maxmemfrac = strtod(optarg, NULL); break; GETOPT_OPTARG("-t"): maxtime = strtod(optarg, NULL); break; GETOPT_OPT("-v"): verbose = 1; break; GETOPT_OPT("-P"): devtty = 0; break; GETOPT_MISSING_ARG: warn0("Missing argument to %s\n", ch); usage(); GETOPT_DEFAULT: warn0("illegal option -- %s\n", ch); usage(); } } argc -= optind; argv += optind; /* We must have one or two parameters left. */ if ((argc < 1) || (argc > 2)) usage(); /* If the input isn't stdin, open the file. */ if (strcmp(argv[0], "-")) { if ((infile = fopen(argv[0], "rb")) == NULL) { warnp("Cannot open input file: %s", argv[0]); exit(1); } } else { infile = stdin; } /* If we have an output file, open it. */ if (argc > 1) { if ((outfile = fopen(argv[1], "wb")) == NULL) { warnp("Cannot open output file: %s", argv[1]); exit(1); } } else { outfile = stdout; } /* Prompt for a password. */ if (readpass(&passwd, "Please enter passphrase", (dec || !devtty) ? NULL : "Please confirm passphrase", devtty)) exit(1); /* Encrypt or decrypt. */ if (dec) rc = scryptdec_file(infile, outfile, (uint8_t *)passwd, strlen(passwd), maxmem, maxmemfrac, maxtime, verbose, force_resources); else rc = scryptenc_file(infile, outfile, (uint8_t *)passwd, strlen(passwd), maxmem, maxmemfrac, maxtime, verbose); /* Zero and free the password. */ insecure_memzero(passwd, strlen(passwd)); free(passwd); /* Close any files we opened. */ if (infile != stdin) fclose(infile); if (outfile != stdout) fclose(outfile); /* If we failed, print the right error message and exit. */ if (rc != 0) { switch (rc) { case 1: warnp("Error determining amount of available memory"); break; case 2: warnp("Error reading clocks"); break; case 3: warnp("Error computing derived key"); break; case 4: warnp("Error reading salt"); break; case 5: warnp("OpenSSL error"); break; case 6: warnp("Error allocating memory"); break; case 7: warn0("Input is not valid scrypt-encrypted block"); break; case 8: warn0("Unrecognized scrypt format version"); break; case 9: warn0("Decrypting file would require too much memory"); break; case 10: warn0("Decrypting file would take too much CPU time"); break; case 11: warn0("Passphrase is incorrect"); break; case 12: warnp("Error writing file: %s", (argc > 1) ? argv[1] : "standard output"); break; case 13: warnp("Error reading file: %s", argv[0]); break; } exit(1); } return (0); } scrypt-1.2.1/FORMAT000644 001751 001751 00000001230 13047536511 015407 0ustar00cpercivacperciva000000 000000 scrypt encrypted data format ---------------------------- offset length 0 6 "scrypt" 6 1 scrypt data file version number (== 0) 7 1 log2(N) (must be between 1 and 63 inclusive) 8 4 r (big-endian integer; must satisfy r * p < 2^30) 12 4 p (big-endian integer; must satisfy r * p < 2^30) 16 32 salt 48 16 first 16 bytes of SHA256(bytes 0 .. 47) 64 32 HMAC-SHA256(bytes 0 .. 63) 96 X data xor AES256-CTR key stream generated with nonce == 0 96+X 32 HMAC-SHA256(bytes 0 .. 96 + (X - 1)) AES256-CTR is computed with a 256-bit AES key key_enc, and HMAC-SHA256 is computed with a 256-bit key key_hmac, where scrypt(password, salt, N, r, p, 64) == [key_enc][key_hmac] scrypt-1.2.1/COPYRIGHT000644 001751 001751 00000002715 13047536511 016000 0ustar00cpercivacperciva000000 000000 The included code and documentation ("scrypt") is distributed under the following terms: Copyright 2005-2016 Colin Percival. All rights reserved. Copyright 2005-2016 Tarsnap Backup Inc. All rights reserved. Copyright 2014 Sean Kelly. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. scrypt-1.2.1/BUILDING000644 001751 001751 00000003002 13047536511 015613 0ustar00cpercivacperciva000000 000000 Installing ---------- We strongly recommend that people use the latest official release tarball on https://www.tarsnap.com/scrypt.html, and build with: ./configure make make install Platform-specific notes ----------------------- - On OS X, the version of OpenSSL included with the operating system is outdated (0.9.8) and deprecated, and it is recommended that scrypt be built with an updated version of OpenSSL. On OS X 10.11 "El Capitan" and higher, OpenSSL was removed entirely. After installing a newer version of OpenSSL, use CPPFLAGS="-I /path/to/openssl/headers" LDFLAGS="-L /path/to/openssl/lib" to build scrypt. In particular, if you installed OpenSSL using homebrew, you may pass the relevant directories directly to ./configure: ./configure CPPFLAGS="-I/usr/local/opt/openssl/include" LDFLAGS="-L/usr/local/opt/openssl/lib" Alternatively, you may with to add these lines to your $HOME/.profile file: export CPPFLAGS="-I/usr/local/opt/openssl/include $CPPFLAGS" export LDFLAGS="-L/usr/local/opt/openssl/lib $LDFLAGS" and then close & re-open your terminal window. Building from git ----------------- For experimental development from git, build with: autoreconf -i ./configure make - You must have automake 1.11.2 or higher. - In order to support the `AX_CFLAGS_WARN_ALL` autoconf directive, you will need to install the autoconf archive. On Debian systems, use the `autoconf-archive` package; on FreeBSD, use `devel/autoconf-archive`. scrypt-1.2.1/lib/000755 001751 001751 00000000000 13047536511 015246 5ustar00cpercivacperciva000000 000000 scrypt-1.2.1/libcperciva/000755 001751 001751 00000000000 13047536511 016763 5ustar00cpercivacperciva000000 000000 scrypt-1.2.1/tests/000755 001751 001751 00000000000 13047536511 015642 5ustar00cpercivacperciva000000 000000 scrypt-1.2.1/scrypt.1000644 001751 001751 00000007775 13047536511 016126 0ustar00cpercivacperciva000000 000000 .\" Copyright 2009 Colin Percival .\" All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .Dd February 10, 2017 .Dt SCRYPT 1 .Os .Sh NAME .Nm scrypt .Nd encrypt and decrypt files. .Sh SYNOPSIS .Nm .Brq Cm enc | Cm dec .Op Fl f .Op Fl M Ar maxmem .Op Fl m Ar maxmemfrac .Op Fl t Ar maxtime .Op Fl P .Ar infile .Op Ar outfile .Nm .Fl -version .Sh DESCRIPTION .Nm Cm enc encrypts .Ar infile and writes the result to .Ar outfile if specified, or the standard output otherwise. The user will be prompted to enter a passphrase (twice) to be used to generate a derived encryption key. .Pp .Nm Cm dec decrypts .Ar infile and writes the result to .Ar outfile if specified, or the standard output otherwise. The user will be prompted to enter the passphrase used at encryption time to generate the derived encryption key. .Pp If .Fl P is not given, .Nm reads passphrases from its controlling terminal, or failing that, from stdin. Prompts are only printed when .Nm is reading passphrases from some terminal. If .Fl P is given, then .Nm does not print any prompts, and reads a passphrase from stdin. .Sh OPTIONS .Bl -tag -width "-m maxmemfrac" .It Fl f Force the decryption to proceed even if it is anticipated to require an excessive amount of memory or CPU time. .It Fl M Ar maxmem Use at most .Ar maxmem bytes of RAM to compute the derived encryption key. .It Fl m Ar maxmemfrac Use at most the fraction .Ar maxmemfrac of the available RAM to compute the derived encryption key. .It Fl t Ar maxtime Use at most .Ar maxtime seconds of CPU time to compute the derived encryption key. .It Fl P Always read passphrase from stdin, and do so only once even when encrypting. .It Fl -version Print version of scrypt, and exit. .El .Pp In .Nm Cm enc , the memory and CPU time limits are enforced by picking appropriate parameters to the .Nm key derivation function. In .Nm Cm dec , the memory and CPU time limits are enforced by exiting with an error if decrypting the file would require too much memory or CPU time. .Sh EXIT STATUS The .Nm utility exits 0 on success, and >0 if an error occurs. .Pp Note that if the input encrypted file is corrupted, .Nm Cm dec may produce output prior to determining that the input was corrupt and exiting with a non-zero status; so users should direct the output to a safe location and check the exit status of .Nm before using the decrypted data. .Sh SEE ALSO .Rs .%A "Colin Percival" .%T "Stronger Key Derivation via Sequential Memory-Hard Functions" .%O "Presented at BSDCan'09" .%D "May 2009" .Re .Sh HISTORY The .Nm utility was written in May 2009 by Colin Percival as a demonstration of the .Nm key derivation function. The .Nm key derivation function was invented in March 2009 by Colin Percival in order to allow key files from the .Nm tarsnap backup system to be passphrase protected. scrypt-1.2.1/config.aux/000755 001751 001751 00000000000 13047536521 016542 5ustar00cpercivacperciva000000 000000 scrypt-1.2.1/configure000755 001751 001751 00000604537 13047536520 016426 0ustar00cpercivacperciva000000 000000 #! /bin/sh # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.69 for scrypt 1.2.1. # # Report bugs to . # # # Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. # # # This configure script is free software; the Free Software Foundation # gives unlimited permission to copy, distribute and modify it. ## -------------------- ## ## M4sh Initialization. ## ## -------------------- ## # Be more Bourne compatible DUALCASE=1; export DUALCASE # for MKS sh if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then : emulate sh NULLCMD=: # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which # is contrary to our usage. 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IN NO EVENT SHALL THE # X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- # TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # # Except as contained in this notice, the name of the X Consortium shall not # be used in advertising or otherwise to promote the sale, use or other deal- # ings in this Software without prior written authorization from the X Consor- # tium. # # # FSF changes to this file are in the public domain. # # Calling this script install-sh is preferred over install.sh, to prevent # 'make' implicit rules from creating a file called install from it # when there is no Makefile. # # This script is compatible with the BSD install script, but was written # from scratch. tab=' ' nl=' ' IFS=" $tab$nl" # Set DOITPROG to "echo" to test this script. doit=${DOITPROG-} doit_exec=${doit:-exec} # Put in absolute file names if you don't have them in your path; # or use environment vars. chgrpprog=${CHGRPPROG-chgrp} chmodprog=${CHMODPROG-chmod} chownprog=${CHOWNPROG-chown} cmpprog=${CMPPROG-cmp} cpprog=${CPPROG-cp} mkdirprog=${MKDIRPROG-mkdir} mvprog=${MVPROG-mv} rmprog=${RMPROG-rm} stripprog=${STRIPPROG-strip} posix_mkdir= # Desired mode of installed file. mode=0755 chgrpcmd= chmodcmd=$chmodprog chowncmd= mvcmd=$mvprog rmcmd="$rmprog -f" stripcmd= src= dst= dir_arg= dst_arg= copy_on_change=false is_target_a_directory=possibly usage="\ Usage: $0 [OPTION]... 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Yay! Note: for some reason libtool 1.4 doesn't like ## it if -MD -MP comes after the -MF stuff. Hmm. ## Unfortunately, FreeBSD c89 acceptance of flags depends upon ## the command line argument order; so add the flags where they ## appear in depend2.am. Note that the slowdown incurred here ## affects only configure: in makefiles, %FASTDEP% shortcuts this. for arg do case $arg in -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;; *) set fnord "$@" "$arg" ;; esac shift # fnord shift # $arg done "$@" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi mv "$tmpdepfile" "$depfile" ;; gcc) ## Note that this doesn't just cater to obsosete pre-3.x GCC compilers. ## but also to in-use compilers like IMB xlc/xlC and the HP C compiler. ## (see the conditional assignment to $gccflag above). ## There are various ways to get dependency output from gcc. 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Also, it might not be ## supported by the other compilers which use the 'gcc' depmode. ## - Using -M directly means running the compiler twice (even worse ## than renaming). if test -z "$gccflag"; then gccflag=-MD, fi "$@" -Wp,"$gccflag$tmpdepfile" stat=$? if test $stat -ne 0; then rm -f "$tmpdepfile" exit $stat fi rm -f "$depfile" echo "$object : \\" > "$depfile" # The second -e expression handles DOS-style file names with drive # letters. sed -e 's/^[^:]*: / /' \ -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile" ## This next piece of magic avoids the "deleted header file" problem. ## The problem is that when a header file which appears in a .P file ## is deleted, the dependency causes make to die (because there is ## typically no way to rebuild the header). We avoid this by adding ## dummy dependencies for each header file. Too bad gcc doesn't do ## this for us directly. ## Some versions of gcc put a space before the ':'. On the theory ## that the space means something, we add a space to the output as ## well. hp depmode also adds that space, but also prefixes the VPATH ## to the object. Take care to not repeat it in the output. ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; hp) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. 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We also remove comment lines; # the IRIX cc adds comments like '#:fec' to the end of the # dependency line. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \ | tr "$nl" ' ' >> "$depfile" echo >> "$depfile" # The second pass generates a dummy entry for each header file. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \ >> "$depfile" else make_dummy_depfile fi rm -f "$tmpdepfile" ;; xlc) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; aix) # The C for AIX Compiler uses -M and outputs the dependencies # in a .u file. In older versions, this file always lives in the # current directory. 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This case will never be run, # since it is checked for above. exit 1 ;; #nosideeffect) # This comment above is used by automake to tell side-effect # dependency tracking mechanisms from slower ones. dashmstdout) # Important note: in order to support this mode, a compiler *must* # always write the preprocessed file to stdout, regardless of -o. "$@" || exit $? # Remove the call to Libtool. if test "$libtool" = yes; then while test "X$1" != 'X--mode=compile'; do shift done shift fi # Remove '-o $object'. IFS=" " for arg do case $arg in -o) shift ;; $object) shift ;; *) set fnord "$@" "$arg" shift # fnord shift # $arg ;; esac done test -z "$dashmflag" && dashmflag=-M # Require at least two characters before searching for ':' # in the target name. This is to cope with DOS-style filenames: # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise. "$@" $dashmflag | sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile" rm -f "$depfile" cat < "$tmpdepfile" > "$depfile" # Some versions of the HPUX 10.20 sed can't process this sed invocation # correctly. Breaking it into two sed invocations is a workaround. tr ' ' "$nl" < "$tmpdepfile" \ | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \ | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; dashXmstdout) # This case only exists to satisfy depend.m4. It is never actually # run, as this mode is specially recognized in the preamble. exit 1 ;; makedepend) "$@" || exit $? # Remove any Libtool call if test "$libtool" = yes; then while test "X$1" != 'X--mode=compile'; do shift done shift fi # X makedepend shift cleared=no eat=no for arg do case $cleared in no) set ""; shift cleared=yes ;; esac if test $eat = yes; then eat=no continue fi case "$arg" in -D*|-I*) set fnord "$@" "$arg"; shift ;; # Strip any option that makedepend may not understand. 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"$@" || exit $? # Remove the call to Libtool. if test "$libtool" = yes; then while test "X$1" != 'X--mode=compile'; do shift done shift fi # Remove '-o $object'. IFS=" " for arg do case $arg in -o) shift ;; $object) shift ;; *) set fnord "$@" "$arg" shift # fnord shift # $arg ;; esac done "$@" -E \ | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \ | sed '$ s: \\$::' > "$tmpdepfile" rm -f "$depfile" echo "$object : \\" > "$depfile" cat < "$tmpdepfile" >> "$depfile" sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; msvisualcpp) # Important note: in order to support this mode, a compiler *must* # always write the preprocessed file to stdout. "$@" || exit $? # Remove the call to Libtool. if test "$libtool" = yes; then while test "X$1" != 'X--mode=compile'; do shift done shift fi IFS=" " for arg do case "$arg" in -o) shift ;; $object) shift ;; "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI") set fnord "$@" shift shift ;; *) set fnord "$@" "$arg" shift shift ;; esac done "$@" -E 2>/dev/null | sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile" rm -f "$depfile" echo "$object : \\" > "$depfile" sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile" echo "$tab" >> "$depfile" sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile" rm -f "$tmpdepfile" ;; msvcmsys) # This case exists only to let depend.m4 do its work. It works by # looking at the text of this script. This case will never be run, # since it is checked for above. exit 1 ;; none) exec "$@" ;; *) echo "Unknown depmode $depmode" 1>&2 exit 1 ;; esac exit 0 # Local Variables: # mode: shell-script # sh-indentation: 2 # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC" # time-stamp-end: "; # UTC" # End: scrypt-1.2.1/tests/01-known-values.sh000644 001751 001751 00000001153 13047536511 021045 0ustar00cpercivacperciva000000 000000 #!/bin/sh ### Constants # The scenario command requires a lot of memory, so valgrind is only enabled # if $USE_VALGRIND > 1. c_valgrind_min=2 test_output="${s_basename}-stdout.txt" reference="${scriptdir}/test_scrypt.good" ### Actual command scenario_cmd() { # Run the binary which tests known input/output strings. setup_check_variables ( ${c_valgrind_cmd} ${bindir}/tests/test_scrypt 1> ${test_output} echo $? > ${c_exitfile} ) # The generated values should match the known good values. setup_check_variables if cmp -s ${test_output} ${reference}; then echo "0" else echo "1" fi > ${c_exitfile} } scrypt-1.2.1/tests/test_scrypt.c000644 001751 001751 00000002154 13047536511 020373 0ustar00cpercivacperciva000000 000000 #include #include #include #include "crypto_scrypt.h" #include "warnp.h" static struct scrypt_test { const char * passwd; const char * salt; uint64_t N; uint32_t r; uint32_t p; } tests[4] = { { "", "", 16, 1, 1 }, { "password", "NaCl", 1024, 8, 16 }, { "pleaseletmein", "SodiumChloride", 16384, 8, 1 }, { "pleaseletmein", "SodiumChloride", 1048576, 8, 1 } }; int main(int argc, char * argv[]) { struct scrypt_test * test; char kbuf[64]; size_t i; WARNP_INIT; (void)argc; /* UNUSED */ (void)argv; /* UNUSED */ for (test = tests; test < tests + sizeof(tests) / sizeof(tests[0]); test++) { crypto_scrypt((const uint8_t *)test->passwd, strlen(test->passwd), (const uint8_t *)test->salt, strlen(test->salt), test->N, test->r, test->p, (uint8_t *)kbuf, 64); printf("scrypt(\"%s\", \"%s\", %u, %u, %u, 64) =\n", test->passwd, test->salt, (unsigned int)test->N, (unsigned int)(test->r), (unsigned int)test->p); for (i = 0; i < 64; i++) { printf("%02x ", (uint8_t)kbuf[i]); if ((i % 16) == 15) printf("\n"); } } return (0); } scrypt-1.2.1/tests/shared_test_functions.sh000644 001751 001751 00000017774 13047536511 022613 0ustar00cpercivacperciva000000 000000 #!/bin/sh ### Definitions # # This test suite uses the following terminology: # - scenario: a series of commands to test. Each must be in a # separate file, and must be completely self-contained # (other than the variables listed below). # - check: a series of commands that produces an exit code which # the test suite should check. A scenario may contain any # number of checks. # ### Design # # The main function is scenario_runner(scenario_filename), which # takes a scenario file as the argument, and runs a # scenario_cmd() # function which was defined in that file. # ### Variables # # Wherever possible, this suite uses local variables and # explicitly-passed arguments, with the following exceptions: # - s_basename: this is the basename for the scenario's temporary # and log files. # - s_val_basename: this is the basename for the scenario's # valgrind log files. # - s_count: this is the count of the scenario's checks (so that # each check can have distinct files). # - s_retval: this is the overall exit code of the scenario. # - c_exitfile: this contains the exit code of each check. # - c_valgrind_min: this is the minimum value of USE_VALGRIND # which will enable valgrind checking for this check. # - c_valgrind_cmd: this is the valgrind command (including # appropriate log file) if necessary, or is "" otherwise. set -o nounset ### Constants out="tests-output" out_valgrind="tests-valgrind" valgrind_suppressions="${out_valgrind}/suppressions" valgrind_suppressions_log="${out_valgrind}/suppressions.pre" # Keep the user-specified ${USE_VALGRIND}, or initialize to 0. USE_VALGRIND=${USE_VALGRIND:-0} # A non-zero value unlikely to be used as an exit code by the programs being # tested. valgrind_exit_code=108 ## prepare_directories(): # Delete any old directories, and create new ones as necessary. Must be run # after check_optional_valgrind(). prepare_directories() { # Clean up previous directories. if [ -d "${out}" ]; then rm -rf ${out} fi if [ -d "${out_valgrind}" ]; then rm -rf ${out_valgrind} fi # Make new directories. mkdir ${out} if [ "$USE_VALGRIND" -gt 0 ]; then mkdir ${out_valgrind} fi } ## find_system (cmd, args...): # Looks for ${cmd} in the $PATH, and ensure that it supports ${args}. find_system() { cmd=$1 cmd_with_args=$@ # Look for ${cmd}. system_binary=`command -v ${cmd}` if [ -z "${system_binary}" ]; then system_binary="" printf "System ${cmd} not found.\n" 1>&2 # If the command exists, check it ensures the ${args}. elif ${cmd_with_args} 2>&1 >/dev/null | \ grep -qE "(invalid|illegal) option"; then system_binary="" printf "Cannot use system ${cmd}; does not" 1>&2 printf " support necessary arguments.\n" 1>&2 fi echo "${system_binary}" } ## check_optional_valgrind (): # Return a $USE_VALGRIND variable defined; if it was previously defined and # was greater than 0, then check that valgrind is available in the $PATH. check_optional_valgrind() { if [ "$USE_VALGRIND" -gt 0 ]; then # Look for valgrind in $PATH. if ! command -v valgrind >/dev/null 2>&1; then printf "valgrind not found\n" 1>&2 exit 1 fi fi } ## ensure_valgrind_suppresssion (potential_memleaks_binary): # Runs the ${potential_memleaks_binary} through valgrind, keeping # track of any apparent memory leak in order to suppress reporting # those leaks when testing other binaries. ensure_valgrind_suppression() { potential_memleaks_binary=$1 # Quit if we're not using valgrind. if [ ! "$USE_VALGRIND" -gt 0 ]; then return fi; printf "Generating valgrind suppressions... " # Run valgrind on the binary, sending it a "\n" so that # a test which uses STDIN will not wait for user input. printf "\n" | (valgrind --leak-check=full --show-leak-kinds=all \ --gen-suppressions=all \ --log-file=${valgrind_suppressions_log} \ ${potential_memleaks_binary}) # Strip out useless parts from the log file, as well as # removing references to the main and "pl_*" ("potential # loss") functions so that the suppressions can apply to # other binaries. (grep -v "^==" ${valgrind_suppressions_log} \ | grep -v " fun:pl_" - \ | grep -v " fun:main" - \ > ${valgrind_suppressions} ) # Clean up rm -f ${valgrind_suppressions_log} printf "done.\n" } ## setup_check_variables (): # Set up the "check" variables ${c_exitfile} and ${c_valgrind_cmd}, the # latter depending on the previously-defined ${c_valgrind_min}. # Advances the number of checks ${s_count} so that the next call to this # function will set up new filenames. setup_check_variables() { # Set up the "exit" file. c_exitfile="${s_basename}-`printf %02d ${s_count}`.exit" # If we don't have a suppressions file, don't try to use it. if [ ! -e ${valgrind_suppressions} ]; then valgrind_suppressions=/dev/null fi # Set up the valgrind command if $USE_VALGRIND is greater # than or equal to ${valgrind_min}; otherwise, produce an # empty string. Using --error-exitcode means that if # there is a serious problem (such that scrypt calls # exit(1)) *and* a memory leak, the test suite reports an # exit value of ${valgrind_exit_code}. However, if there # is a serious problem but no memory leak, we still # receive a non-zero exit code. The most important thing # is that we only receive an exit code of 0 if both the # program and valgrind are happy. if [ "$USE_VALGRIND" -ge "${c_valgrind_min}" ]; then val_logfilename=${s_val_basename}-`printf %02d ${s_count}`.log c_valgrind_cmd="valgrind \ --log-file=${val_logfilename} \ --leak-check=full --show-leak-kinds=all \ --errors-for-leak-kinds=all \ --suppressions=${valgrind_suppressions} \ --error-exitcode=${valgrind_exit_code} " else c_valgrind_cmd="" fi # Advances the number of checks. s_count=$((s_count + 1)) } ## get_val_logfile (val_basename, exitfile): # Return the valgrind logfile corresponding to ${exitfile}. get_val_logfile() { val_basename=$1 exitfile=$2 num=`echo "${exitfile}" | rev | cut -c 1-7 | rev | cut -c 1-2 ` echo "${val_basename}-${num}.log" } ## notify_success_or_fail (log_basename, val_log_basename): # Examine all "exit code" files beginning with ${log_basename} and # print "SUCCESS!" or "FAILED!" as appropriate. If the test failed # with the code ${valgrind_exit_code}, output the appropriate # valgrind logfile to stdout. notify_success_or_fail() { log_basename=$1 val_log_basename=$2 # Check each exitfile. for exitfile in `ls ${log_basename}-*.exit | sort`; do ret=`cat ${exitfile}` if [ "${ret}" -lt 0 ]; then echo "SKIP!" return fi if [ "${ret}" -gt 0 ]; then echo "FAILED!" retval=${ret} if [ "${ret}" -eq "${valgrind_exit_code}" ]; then val_logfilename=$( get_val_logfile \ ${val_log_basename} ${exitfile} ) cat ${val_logfilename} fi s_retval=${ret} return fi done echo "SUCCESS!" } ## scenario_runner (scenario_filename): # Runs a test scenario from ${scenario_filename}. scenario_runner() { scenario_filename=$1 basename=`basename ${scenario_filename} .sh` printf " ${basename}... " 1>&2 # Initialize "scenario" and "check" variables. s_basename=${out}/${basename} s_val_basename=${out_valgrind}/${basename} s_count=0 c_exitfile=/dev/null c_valgrind_min=9 c_valgrind_cmd="" # Load scenario_cmd() from the scenario file. unset scenario_cmd . ${scenario_filename} if ! command -v scenario_cmd 1>/dev/null ; then printf "ERROR: scenario_cmd() is not defined in\n" printf " ${scenario_filename}\n" exit 1 fi # Run the scenario command. scenario_cmd # Print PASS or FAIL, and return result. s_retval=0 notify_success_or_fail ${s_basename} ${s_val_basename} return "${s_retval}" } ## run_scenarios (scenario_filenames): # Runs all scenarios matching ${scenario_filenames}. run_scenarios() { printf -- "Running tests\n" printf -- "-------------\n" scenario_filenames=$@ for scenario in ${scenario_filenames}; do # We can't call this function with $( ... ) because we # want to allow it to echo values to stdout. scenario_runner ${scenario} retval=$? if [ ${retval} -gt 0 ]; then exit ${retval} fi done } scrypt-1.2.1/tests/test_scrypt.sh000755 001751 001751 00000001725 13047536511 020571 0ustar00cpercivacperciva000000 000000 #!/bin/sh # Build directory (allowing flexible out-of-tree builds). bindir=$1 # Constants used in multiple scenarios. password="hunter2" # Find script directory and load helper functions. scriptdir=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd -P) . ${scriptdir}/shared_test_functions.sh # We need a ${bindir}. if [ -z ${bindir} ]; then printf "Warning: Scrypt binary directory not given.\n" printf "Attempting to use default values for in-source-tree build.\n" bindir=".." fi # Find system scrypt, and ensure it supports -P. system_scrypt=$( find_system scrypt enc -P ) # Check for optional valgrind. check_optional_valgrind # Clean up previous directories, and create new ones. prepare_directories # Generate valgrind suppression file if it is required. Must be # done after preparing directories. ensure_valgrind_suppression ${bindir}/tests/valgrind/potential-memleaks # Run the test scenarios; this will exit on the first failure. run_scenarios ${scriptdir}/??-*.sh scrypt-1.2.1/tests/test_scrypt.good000644 001751 001751 00000001731 13047536511 021101 0ustar00cpercivacperciva000000 000000 scrypt("", "", 16, 1, 1, 64) = 77 d6 57 62 38 65 7b 20 3b 19 ca 42 c1 8a 04 97 f1 6b 48 44 e3 07 4a e8 df df fa 3f ed e2 14 42 fc d0 06 9d ed 09 48 f8 32 6a 75 3a 0f c8 1f 17 e8 d3 e0 fb 2e 0d 36 28 cf 35 e2 0c 38 d1 89 06 scrypt("password", "NaCl", 1024, 8, 16, 64) = fd ba be 1c 9d 34 72 00 78 56 e7 19 0d 01 e9 fe 7c 6a d7 cb c8 23 78 30 e7 73 76 63 4b 37 31 62 2e af 30 d9 2e 22 a3 88 6f f1 09 27 9d 98 30 da c7 27 af b9 4a 83 ee 6d 83 60 cb df a2 cc 06 40 scrypt("pleaseletmein", "SodiumChloride", 16384, 8, 1, 64) = 70 23 bd cb 3a fd 73 48 46 1c 06 cd 81 fd 38 eb fd a8 fb ba 90 4f 8e 3e a9 b5 43 f6 54 5d a1 f2 d5 43 29 55 61 3f 0f cf 62 d4 97 05 24 2a 9a f9 e6 1e 85 dc 0d 65 1e 40 df cf 01 7b 45 57 58 87 scrypt("pleaseletmein", "SodiumChloride", 1048576, 8, 1, 64) = 21 01 cb 9b 6a 51 1a ae ad db be 09 cf 70 f8 81 ec 56 8d 57 4a 2f fd 4d ab e5 ee 98 20 ad aa 47 8e 56 fd 8f 4b a5 d0 9f fa 1c 6d 92 7c 40 f4 c3 37 30 40 49 e8 a9 52 fb cb f4 5c 6f a7 7a 41 a4 scrypt-1.2.1/tests/valgrind/000755 001751 001751 00000000000 13047536511 017450 5ustar00cpercivacperciva000000 000000 scrypt-1.2.1/tests/test_scrypt_good.enc000644 001751 001751 00000002131 13047536511 021721 0ustar00cpercivacperciva000000 000000 scryptÐôóÂòÀ¶÷÷èÉ#à4Š•>Éô»'欣…f¹¿sæÆ77wH?3¶÷­I‡³™ß”Ʊ¡1S˜Î (´U¼/ÇJ(è‹ŠC‚ ó‹/L¯°Ð=¿píJ;Ñv²-f°!ÆÔí­¿Òû¾ljؤsN‡ Ýÿ‡M¸öæ=-| :–Õ¥TaK,o88eÙ~¥fFP$°ˆÉ"…=}ÃN@‡j›áEvý†…X^~4€°Ýóç›Í/ˆèzc^] ý.ÚRA+S1eÃÇ2éßKØ/ÊÌ[°[œ‘ %WnûáñaN]Yÿ&eòσßNõj'Ê„Ì^и­?A‚jÐÑÊ˯W«ìmÀÍÌÖx½8ÛÂlVÞmf#™@»¹ùT<Œ5ÄŸµãq¾5ú_xKûQ‘¥Z{ñß=%Æ ëÓûèEÒfΓóöHzW¤GhÏ“*°ic[–7~¯±n—Y®ŒS]_Ù©Ì(Aè<`83ä}š@2çÁ¤Ñ_I¶bryÐ)íI „OýOüÉÀc ¡Wà—õ‡HçIp1ø ’[ öiÐÑz“rÅ-¯g±’RCP$ ámƱ>UZìý@Jž?•*vjÇNåšý5½±Î Ú š‚àkù 0¢æ5÷Ÿìámp~që…Üü¬PÀ>|¯SPì¹\ê© ±6[†cÑoJW˜C …¥¦Žˆy¦š›‡Ð÷ž²KUçÄD:ˆñF~ì節5É‚b’q€_?„L£ß‰9‘Æ«Ð=;0èsߤ´%"µ‹6(ÁÌ­úP¢·[ålYnY™amÆ ï6êÒßÄÁÃ?XgŒiµ|cñô°TJ?0ŒèÁQZõÐ…Jh*K4  ${c_exitfile} ) # The decrypted reference file should match the reference. setup_check_variables if cmp -s ${decrypted_reference_file} ${reference_file}; then echo "0" else echo "1" fi > ${c_exitfile} } scrypt-1.2.1/tests/03-encrypt-decrypt-file.sh000644 001751 001751 00000002147 13047536511 022473 0ustar00cpercivacperciva000000 000000 #!/bin/sh ### Constants c_valgrind_min=1 reference_file="${scriptdir}/test_scrypt.good" encrypted_file="${out}/attempt.enc" decrypted_file="${out}/attempt.txt" scenario_cmd() { # Encrypt a file. setup_check_variables ( echo ${password} | ${c_valgrind_cmd} ${bindir}/scrypt \ enc -P -t 1 ${reference_file} ${encrypted_file} echo $? > ${c_exitfile} ) # The encrypted file should be different from the original file. # We cannot check against the "reference" encrypted file, because # encrypted files include random salt. If successful, don't delete # ${encrypted_file} yet; we need it for the next test. setup_check_variables if cmp -s ${encrypted_file} ${reference_file}; then echo "1" else echo "0" fi > ${c_exitfile} # Decrypt the file we just encrypted. setup_check_variables ( echo ${password} | ${c_valgrind_cmd} ${bindir}/scrypt \ dec -P ${encrypted_file} ${decrypted_file} echo $? > ${c_exitfile} ) # The decrypted file should match the reference. setup_check_variables if cmp -s ${decrypted_file} ${reference_file}; then echo "0" else echo "1" fi > ${c_exitfile} } scrypt-1.2.1/tests/04-force-resources.sh000644 001751 001751 00000002764 13047536511 021536 0ustar00cpercivacperciva000000 000000 #!/bin/sh ### Constants c_valgrind_min=1 reference_file="${scriptdir}/test_scrypt.good" longwait_encrypted_file="${out}/longwait.enc" longwait_decrypted_file="${out}/longwait.txt" longwait_failed_log="${out}/longwait-failed.log" scenario_cmd() { # Encrypt file which should take a long time to decrypt. setup_check_variables ( echo ${password} | ${c_valgrind_cmd} ${bindir}/scrypt \ enc -P -t 10 ${reference_file} \ ${longwait_encrypted_file} echo $? > ${c_exitfile} ) # Attempt to decrypt it with limited time. We want this # command to fail, so we negate the normal return code. setup_check_variables ( echo ${password} | ${c_valgrind_cmd} ${bindir}/scrypt \ dec -P -t 1 ${longwait_encrypted_file} \ ${longwait_decrypted_file} \ 2> ${longwait_failed_log} test ! $? -eq 0 echo $? > ${c_exitfile} ) # We should have received an error message. setup_check_variables if grep -q "scrypt: Decrypting file would take too much CPU time" \ ${longwait_failed_log}; then echo "0" else echo "1" fi > ${c_exitfile} # Attempt to decrypt it with limited time, but force success. setup_check_variables ( echo ${password} | ${c_valgrind_cmd} ${bindir}/scrypt \ dec -P -t 1 -f ${longwait_encrypted_file} \ ${longwait_decrypted_file} echo $? > ${c_exitfile} ) # The decrypted reference file should match the reference. setup_check_variables if cmp -s ${longwait_decrypted_file} ${reference_file}; then echo "0" else echo "1" fi > ${c_exitfile} } scrypt-1.2.1/tests/05-system-scrypt-encrypt-decrypt.sh000644 001751 001751 00000003264 13047536511 024425 0ustar00cpercivacperciva000000 000000 #!/bin/sh ### Constants c_valgrind_min=1 reference_file="${scriptdir}/test_scrypt.good" encrypted_file_1="${out}/sys-scrypt.enc" decrypted_file_1="${out}/sys-scrypt.txt" encrypted_file_2="${out}/our-scrypt.enc" decrypted_file_2="${out}/our-scrypt.txt" scenario_cmd() { if [ -z "${system_scrypt}" ]; then printf "no suitable system scrypt: " # Inform test suite that we are skipping. setup_check_variables echo "-1" > ${c_exitfile} return fi # Encrypt a file with our scrypt. setup_check_variables ( echo ${password} | ${c_valgrind_cmd} ${bindir}/scrypt \ enc -P -t 1 ${reference_file} ${encrypted_file_1} echo $? > ${c_exitfile} ) # Use the system scrypt to decrypt the file we just # encrypted. Don't use valgrind for this. setup_check_variables ( echo ${password} | ${system_scrypt} \ dec -P ${encrypted_file_1} ${decrypted_file_1} echo $? > ${c_exitfile} ) # The decrypted file should match the reference. setup_check_variables if cmp -s ${decrypted_file_1} ${reference_file}; then echo "0" else echo "1" fi > ${c_exitfile} # Encrypt a file with the system scrypt. Don't use # valgrind for this. setup_check_variables ( echo ${password} | ${system_scrypt} \ enc -P -t 1 ${reference_file} ${encrypted_file_2} echo $? > ${c_exitfile} ) # Use our scrypt to decrypt the file we just encrypted. setup_check_variables ( echo ${password} | ${c_valgrind_cmd} ${bindir}/scrypt \ dec -P ${encrypted_file_2} ${decrypted_file_2} echo $? > ${c_exitfile} ) # The decrypted file should match the reference. setup_check_variables if cmp -s ${decrypted_file_2} ${reference_file}; then echo "0" else echo "1" fi > ${c_exitfile} } scrypt-1.2.1/tests/valgrind/potential-memleaks.c000644 001751 001751 00000000523 13047536511 023407 0ustar00cpercivacperciva000000 000000 #include #include #define FGETS_BUFSIZE 64 /* Problem with FreeBSD 10.3 fgets() with stdin. */ static void pl_freebsd_fgets() { char buf[FGETS_BUFSIZE]; if (fgets(buf, FGETS_BUFSIZE, stdin) == NULL) exit(1); } int main() { /* Test potential memory leaks. */ pl_freebsd_fgets(); /* Success! */ exit(0); } scrypt-1.2.1/libcperciva/alg/000755 001751 001751 00000000000 13047536511 017526 5ustar00cpercivacperciva000000 000000 scrypt-1.2.1/libcperciva/cpusupport/000755 001751 001751 00000000000 13047536511 021207 5ustar00cpercivacperciva000000 000000 scrypt-1.2.1/libcperciva/crypto/000755 001751 001751 00000000000 13047536511 020303 5ustar00cpercivacperciva000000 000000 scrypt-1.2.1/libcperciva/util/000755 001751 001751 00000000000 13047536511 017740 5ustar00cpercivacperciva000000 000000 scrypt-1.2.1/libcperciva/util/insecure_memzero.c000644 001751 001751 00000000624 13047536511 023461 0ustar00cpercivacperciva000000 000000 #include #include #include "insecure_memzero.h" /* Function which does the zeroing. */ static void insecure_memzero_func(volatile void * buf, size_t len) { volatile uint8_t * _buf = buf; size_t i; for (i = 0; i < len; i++) _buf[i] = 0; } /* Pointer to memory-zeroing function. */ void (* volatile insecure_memzero_ptr)(volatile void *, size_t) = insecure_memzero_func; scrypt-1.2.1/libcperciva/util/insecure_memzero.h000644 001751 001751 00000002724 13047536511 023471 0ustar00cpercivacperciva000000 000000 #ifndef _INSECURE_MEMZERO_H_ #define _INSECURE_MEMZERO_H_ #include /* Pointer to memory-zeroing function. */ extern void (* volatile insecure_memzero_ptr)(volatile void *, size_t); /** * insecure_memzero(buf, len): * Attempt to zero ${len} bytes at ${buf} in spite of optimizing compilers' * best (standards-compliant) attempts to remove the buffer-zeroing. In * particular, to avoid performing the zeroing, a compiler would need to * use optimistic devirtualization; recognize that non-volatile objects do not * need to be treated as volatile, even if they are accessed via volatile * qualified pointers; and perform link-time optimization; in addition to the * dead-code elimination which often causes buffer-zeroing to be elided. * * Note however that zeroing a buffer does not guarantee that the data held * in the buffer is not stored elsewhere; in particular, there may be copies * held in CPU registers or in anonymous allocations on the stack, even if * every named variable is successfully sanitized. Solving the "wipe data * from the system" problem will require a C language extension which does not * yet exist. * * For more information, see: * http://www.daemonology.net/blog/2014-09-04-how-to-zero-a-buffer.html * http://www.daemonology.net/blog/2014-09-06-zeroing-buffers-is-insufficient.html */ static inline void insecure_memzero(volatile void * buf, size_t len) { (insecure_memzero_ptr)(buf, len); } #endif /* !_INSECURE_MEMZERO_H_ */ scrypt-1.2.1/libcperciva/util/readpass.c000644 001751 001751 00000012734 13047536511 021715 0ustar00cpercivacperciva000000 000000 #include #include #include #include #include #include "insecure_memzero.h" #include "warnp.h" #include "readpass.h" #define MAXPASSLEN 2048 /* Signals we need to block. */ static const int badsigs[] = { SIGALRM, SIGHUP, SIGINT, SIGPIPE, SIGQUIT, SIGTERM, SIGTSTP, SIGTTIN, SIGTTOU }; #define NSIGS sizeof(badsigs)/sizeof(badsigs[0]) /* Highest signal number we care about. */ #define MAX2(a, b) ((a) > (b) ? (a) : (b)) #define MAX4(a, b, c, d) MAX2(MAX2(a, b), MAX2(c, d)) #define MAX8(a, b, c, d, e, f, g, h) MAX2(MAX4(a, b, c, d), MAX4(e, f, g, h)) #define MAXBADSIG MAX2(SIGALRM, MAX8(SIGHUP, SIGINT, SIGPIPE, SIGQUIT, \ SIGTERM, SIGTSTP, SIGTTIN, SIGTTOU)) /* Has a signal of this type been received? */ static volatile sig_atomic_t gotsig[MAXBADSIG + 1]; /* Signal handler. */ static void handle(int sig) { gotsig[sig] = 1; } /* Restore old signals and re-issue intercepted signals. */ static void resetsigs(struct sigaction savedsa[NSIGS]) { size_t i; /* Restore old signals. */ for (i = 0; i < NSIGS; i++) sigaction(badsigs[i], &savedsa[i], NULL); /* If we intercepted a signal, re-issue it. */ for (i = 0; i < NSIGS; i++) { if (gotsig[badsigs[i]]) raise(badsigs[i]); } } /** * readpass(passwd, prompt, confirmprompt, devtty) * If ${devtty} is non-zero, read a password from /dev/tty if possible; if * not, read from stdin. If reading from a tty (either /dev/tty or stdin), * disable echo and prompt the user by printing ${prompt} to stderr. If * ${confirmprompt} is non-NULL, read a second password (prompting if a * terminal is being used) and repeat until the user enters the same password * twice. Return the password as a malloced NUL-terminated string via * ${passwd}. */ int readpass(char ** passwd, const char * prompt, const char * confirmprompt, int devtty) { FILE * readfrom; char passbuf[MAXPASSLEN]; char confpassbuf[MAXPASSLEN]; struct sigaction sa, savedsa[NSIGS]; struct termios term, term_old; size_t i; int usingtty; /* * If devtty != 0, try to open /dev/tty; if that fails, or if devtty * is zero, we'll read the password from stdin instead. */ if ((devtty == 0) || ((readfrom = fopen("/dev/tty", "r")) == NULL)) readfrom = stdin; /* We have not received any signals yet. */ for (i = 0; i <= MAXBADSIG; i++) gotsig[i] = 0; /* * If we receive a signal while we're reading the password, we might * end up with echo disabled; to prevent this, we catch the signals * here, and we'll re-send them to ourselves later after we re-enable * terminal echo. */ sa.sa_handler = handle; sa.sa_flags = 0; sigemptyset(&sa.sa_mask); for (i = 0; i < NSIGS; i++) sigaction(badsigs[i], &sa, &savedsa[i]); /* If we're reading from a terminal, try to disable echo. */ if ((usingtty = isatty(fileno(readfrom))) != 0) { if (tcgetattr(fileno(readfrom), &term_old)) { warnp("Cannot read terminal settings"); goto err2; } memcpy(&term, &term_old, sizeof(struct termios)); term.c_lflag = (term.c_lflag & ~((tcflag_t)ECHO)) | ECHONL; if (tcsetattr(fileno(readfrom), TCSANOW, &term)) { warnp("Cannot set terminal settings"); goto err2; } } retry: /* If we have a terminal, prompt the user to enter the password. */ if (usingtty) fprintf(stderr, "%s: ", prompt); /* Read the password. */ if (fgets(passbuf, MAXPASSLEN, readfrom) == NULL) { if (feof(readfrom)) warn0("EOF reading password"); else warnp("Cannot read password"); goto err3; } /* Confirm the password if necessary. */ if (confirmprompt != NULL) { if (usingtty) fprintf(stderr, "%s: ", confirmprompt); if (fgets(confpassbuf, MAXPASSLEN, readfrom) == NULL) { if (feof(readfrom)) warn0("EOF reading password"); else warnp("Cannot read password"); goto err3; } if (strcmp(passbuf, confpassbuf)) { fprintf(stderr, "Passwords mismatch, please try again\n"); goto retry; } } /* Terminate the string at the first "\r" or "\n" (if any). */ passbuf[strcspn(passbuf, "\r\n")] = '\0'; /* If we changed terminal settings, reset them. */ if (usingtty) tcsetattr(fileno(readfrom), TCSANOW, &term_old); /* Restore old signals and re-issue intercepted signals. */ resetsigs(savedsa); /* Close /dev/tty if we opened it. */ if (readfrom != stdin) fclose(readfrom); /* Copy the password out. */ if ((*passwd = strdup(passbuf)) == NULL) { warnp("Cannot allocate memory"); goto err1; } /* * Zero any stored passwords. This is not guaranteed to work, since a * "sufficiently intelligent" compiler can optimize these out due to * the values not being accessed again; and even if we outwitted the * compiler, all we can do is ensure that *a* buffer is zeroed but * not that it is the only buffer containing the data in question. * Unfortunately the C standard does not provide any way to mark data * as "sensitive" in order to prevent extra copies being sprinkled * around the implementation address space. */ insecure_memzero(passbuf, MAXPASSLEN); insecure_memzero(confpassbuf, MAXPASSLEN); /* Success! */ return (0); err3: /* Reset terminal settings if necessary. */ if (usingtty) tcsetattr(fileno(readfrom), TCSAFLUSH, &term_old); err2: /* Close /dev/tty if we opened it. */ if (readfrom != stdin) fclose(readfrom); /* Restore old signals and re-issue intercepted signals. */ resetsigs(savedsa); err1: /* Zero any stored passwords. */ insecure_memzero(passbuf, MAXPASSLEN); insecure_memzero(confpassbuf, MAXPASSLEN); /* Failure! */ return (-1); } scrypt-1.2.1/libcperciva/util/readpass.h000644 001751 001751 00000001425 13047536511 021715 0ustar00cpercivacperciva000000 000000 #ifndef _READPASS_H_ #define _READPASS_H_ /* Avoid namespace collisions with other "readpass" functions. */ #ifdef readpass #undef readpass #endif #define readpass libcperciva_readpass /** * readpass(passwd, prompt, confirmprompt, devtty) * If ${devtty} is non-zero, read a password from /dev/tty if possible; if * not, read from stdin. If reading from a tty (either /dev/tty or stdin), * disable echo and prompt the user by printing ${prompt} to stderr. If * ${confirmprompt} is non-NULL, read a second password (prompting if a * terminal is being used) and repeat until the user enters the same password * twice. Return the password as a malloced NUL-terminated string via * ${passwd}. */ int readpass(char **, const char *, const char *, int); #endif /* !_READPASS_H_ */ scrypt-1.2.1/libcperciva/util/sysendian.h000644 001751 001751 00000006137 13047536511 022115 0ustar00cpercivacperciva000000 000000 #ifndef _SYSENDIAN_H_ #define _SYSENDIAN_H_ #include /* Avoid namespace collisions with BSD . */ #define be16dec libcperciva_be16dec #define be16enc libcperciva_be16enc #define be32dec libcperciva_be32dec #define be32enc libcperciva_be32enc #define be64dec libcperciva_be64dec #define be64enc libcperciva_be64enc #define le16dec libcperciva_le16dec #define le16enc libcperciva_le16enc #define le32dec libcperciva_le32dec #define le32enc libcperciva_le32enc #define le64dec libcperciva_le64dec #define le64enc libcperciva_le64enc static inline uint16_t be16dec(const void * pp) { const uint8_t * p = (uint8_t const *)pp; return (uint16_t)((uint16_t)(p[1]) + ((uint16_t)(p[0]) << 8)); } static inline void be16enc(void * pp, uint16_t x) { uint8_t * p = (uint8_t *)pp; p[1] = x & 0xff; p[0] = (x >> 8) & 0xff; } static inline uint32_t be32dec(const void * pp) { const uint8_t * p = (uint8_t const *)pp; return ((uint32_t)(p[3]) + ((uint32_t)(p[2]) << 8) + ((uint32_t)(p[1]) << 16) + ((uint32_t)(p[0]) << 24)); } static inline void be32enc(void * pp, uint32_t x) { uint8_t * p = (uint8_t *)pp; p[3] = x & 0xff; p[2] = (x >> 8) & 0xff; p[1] = (x >> 16) & 0xff; p[0] = (x >> 24) & 0xff; } static inline uint64_t be64dec(const void * pp) { const uint8_t * p = (uint8_t const *)pp; return ((uint64_t)(p[7]) + ((uint64_t)(p[6]) << 8) + ((uint64_t)(p[5]) << 16) + ((uint64_t)(p[4]) << 24) + ((uint64_t)(p[3]) << 32) + ((uint64_t)(p[2]) << 40) + ((uint64_t)(p[1]) << 48) + ((uint64_t)(p[0]) << 56)); } static inline void be64enc(void * pp, uint64_t x) { uint8_t * p = (uint8_t *)pp; p[7] = x & 0xff; p[6] = (x >> 8) & 0xff; p[5] = (x >> 16) & 0xff; p[4] = (x >> 24) & 0xff; p[3] = (x >> 32) & 0xff; p[2] = (x >> 40) & 0xff; p[1] = (x >> 48) & 0xff; p[0] = (x >> 56) & 0xff; } static inline uint16_t le16dec(const void * pp) { const uint8_t * p = (uint8_t const *)pp; return (uint16_t)((uint16_t)(p[0]) + ((uint16_t)(p[1]) << 8)); } static inline void le16enc(void * pp, uint16_t x) { uint8_t * p = (uint8_t *)pp; p[0] = x & 0xff; p[1] = (x >> 8) & 0xff; } static inline uint32_t le32dec(const void * pp) { const uint8_t * p = (uint8_t const *)pp; return ((uint32_t)(p[0]) + ((uint32_t)(p[1]) << 8) + ((uint32_t)(p[2]) << 16) + ((uint32_t)(p[3]) << 24)); } static inline void le32enc(void * pp, uint32_t x) { uint8_t * p = (uint8_t *)pp; p[0] = x & 0xff; p[1] = (x >> 8) & 0xff; p[2] = (x >> 16) & 0xff; p[3] = (x >> 24) & 0xff; } static inline uint64_t le64dec(const void * pp) { const uint8_t * p = (uint8_t const *)pp; return ((uint64_t)(p[0]) + ((uint64_t)(p[1]) << 8) + ((uint64_t)(p[2]) << 16) + ((uint64_t)(p[3]) << 24) + ((uint64_t)(p[4]) << 32) + ((uint64_t)(p[5]) << 40) + ((uint64_t)(p[6]) << 48) + ((uint64_t)(p[7]) << 56)); } static inline void le64enc(void * pp, uint64_t x) { uint8_t * p = (uint8_t *)pp; p[0] = x & 0xff; p[1] = (x >> 8) & 0xff; p[2] = (x >> 16) & 0xff; p[3] = (x >> 24) & 0xff; p[4] = (x >> 32) & 0xff; p[5] = (x >> 40) & 0xff; p[6] = (x >> 48) & 0xff; p[7] = (x >> 56) & 0xff; } #endif /* !_SYSENDIAN_H_ */ scrypt-1.2.1/libcperciva/util/warnp.c000644 001751 001751 00000002477 13047536511 021245 0ustar00cpercivacperciva000000 000000 #include #include #include #include #include #include "warnp.h" static int initialized = 0; static char * name = NULL; /* Free the name string. */ static void done(void) { free(name); name = NULL; } /** * warnp_setprogname(progname): * Set the program name to be used by warn() and warnx() to ${progname}. */ void warnp_setprogname(const char * progname) { const char * p; /* Free the name if we already have one. */ free(name); /* Find the last segment of the program name. */ for (p = progname; progname[0] != '\0'; progname++) if (progname[0] == '/') p = progname + 1; /* Copy the name string. */ name = strdup(p); /* If we haven't already done so, register our exit handler. */ if (initialized == 0) { atexit(done); initialized = 1; } } void warn(const char * fmt, ...) { va_list ap; va_start(ap, fmt); fprintf(stderr, "%s", (name != NULL) ? name : "(unknown)"); if (fmt != NULL) { fprintf(stderr, ": "); vfprintf(stderr, fmt, ap); } fprintf(stderr, ": %s\n", strerror(errno)); va_end(ap); } void warnx(const char * fmt, ...) { va_list ap; va_start(ap, fmt); fprintf(stderr, "%s", (name != NULL) ? name : "(unknown)"); if (fmt != NULL) { fprintf(stderr, ": "); vfprintf(stderr, fmt, ap); } fprintf(stderr, "\n"); va_end(ap); } scrypt-1.2.1/libcperciva/util/warnp.h000644 001751 001751 00000002551 13047536511 021243 0ustar00cpercivacperciva000000 000000 #ifndef _WARNP_H_ #define _WARNP_H_ #include #include /* Avoid namespace collisions with BSD . */ #define warn libcperciva_warn #define warnx libcperciva_warnx /** * warnp_setprogname(progname): * Set the program name to be used by warn() and warnx() to ${progname}. */ void warnp_setprogname(const char *); #define WARNP_INIT do { \ if (argv[0] != NULL) \ warnp_setprogname(argv[0]); \ } while (0) /* As in BSD . */ void warn(const char *, ...); void warnx(const char *, ...); /* * If compiled with DEBUG defined, print __FILE__ and __LINE__. */ #ifdef DEBUG #define warnline do { \ warnx("%s, %d", __FILE__, __LINE__); \ } while (0) #else #define warnline #endif /* * Call warn(3) or warnx(3) depending upon whether errno == 0; and clear * errno (so that the standard error message isn't repeated later). */ #define warnp(...) do { \ warnline; \ if (errno != 0) { \ warn(__VA_ARGS__); \ errno = 0; \ } else \ warnx(__VA_ARGS__); \ } while (0) /* * Call warnx(3) and set errno == 0. Unlike warnp, this should be used * in cases where we're reporting a problem which we discover ourselves * rather than one which is reported to us from a library or the kernel. */ #define warn0(...) do { \ warnline; \ warnx(__VA_ARGS__); \ errno = 0; \ } while (0) #endif /* !_WARNP_H_ */ scrypt-1.2.1/libcperciva/util/entropy.h000644 001751 001751 00000000405 13047536511 021610 0ustar00cpercivacperciva000000 000000 #ifndef _ENTROPY_H_ #define _ENTROPY_H_ #include #include /** * entropy_read(buf, buflen): * Fill the given buffer with random bytes provided by the operating system. */ int entropy_read(uint8_t *, size_t); #endif /* !_ENTROPY_H_ */ scrypt-1.2.1/libcperciva/util/entropy.c000644 001751 001751 00000003006 13047536511 021603 0ustar00cpercivacperciva000000 000000 #include #include #include #include #include #include "warnp.h" #include "entropy.h" /** * XXX Portability * XXX We obtain random bytes from the operating system by opening * XXX /dev/urandom and reading them from that device; this works on * XXX modern UNIX-like operating systems but not on systems like * XXX win32 where there is no concept of /dev/urandom. */ /** * entropy_read(buf, buflen): * Fill the given buffer with random bytes provided by the operating system. */ int entropy_read(uint8_t * buf, size_t buflen) { int fd; ssize_t lenread; /* Sanity-check the buffer size. */ if (buflen > SSIZE_MAX) { warn0("Programmer error: " "Trying to read insane amount of random data: %zu", buflen); goto err0; } /* Open /dev/urandom. */ if ((fd = open("/dev/urandom", O_RDONLY)) == -1) { warnp("open(/dev/urandom)"); goto err0; } /* Read bytes until we have filled the buffer. */ while (buflen > 0) { if ((lenread = read(fd, buf, buflen)) == -1) { warnp("read(/dev/urandom)"); goto err1; } /* The random device should never EOF. */ if (lenread == 0) { warn0("EOF on /dev/urandom?"); goto err1; } /* We've filled a portion of the buffer. */ buf += (size_t)lenread; buflen -= (size_t)lenread; } /* Close the device. */ while (close(fd) == -1) { if (errno != EINTR) { warnp("close(/dev/urandom)"); goto err0; } } /* Success! */ return (0); err1: close(fd); err0: /* Failure! */ return (-1); } scrypt-1.2.1/libcperciva/util/asprintf.c000644 001751 001751 00000001426 13047536511 021735 0ustar00cpercivacperciva000000 000000 #include #include #include #include "asprintf.h" /** * asprintf(ret, format, ...): * Do asprintf(3) like GNU and BSD do. */ int asprintf(char ** ret, const char * format, ...) { va_list ap; int len; size_t buflen; /* Figure out how long the string needs to be. */ va_start(ap, format); len = vsnprintf(NULL, 0, format, ap); va_end(ap); /* Did we fail? */ if (len < 0) goto err0; buflen = (size_t)(len) + 1; /* Allocate memory. */ if ((*ret = malloc(buflen)) == NULL) goto err0; /* Actually generate the string. */ va_start(ap, format); len = vsnprintf(*ret, buflen, format, ap); va_end(ap); /* Did we fail? */ if (len < 0) goto err1; /* Success! */ return (len); err1: free(*ret); err0: /* Failure! */ return (-1); } scrypt-1.2.1/libcperciva/util/asprintf.h000644 001751 001751 00000000505 13047536511 021737 0ustar00cpercivacperciva000000 000000 #ifndef _ASPRINTF_H_ #define _ASPRINTF_H_ /* Avoid namespace collisions with BSD/GNU asprintf. */ #ifdef asprintf #undef asprintf #endif #define asprintf libcperciva_asprintf /** * asprintf(ret, format, ...): * Do asprintf(3) like GNU and BSD do. */ int asprintf(char **, const char *, ...); #endif /* !_ASPRINTF_H_ */ scrypt-1.2.1/libcperciva/util/getopt.c000644 001751 001751 00000020031 13047536511 021402 0ustar00cpercivacperciva000000 000000 #include #include #include #include #include "getopt.h" /* * Standard getopt global variables. optreset starts as non-zero in order to * trigger initialization behaviour. */ const char * optarg = NULL; int optind = 1; int opterr = 1; int optreset = 1; /* * Quasi-internal global variables -- these are used via GETOPT macros. */ const char * getopt_dummy = "(dummy)"; int getopt_initialized = 0; /* * Internal variables. */ static const char * cmdname = NULL; static struct opt { const char * os; size_t olen; int hasarg; } * opts = NULL; static size_t nopts; static size_t opt_missing; static size_t opt_default; static size_t opt_found; static const char * packedopts; static char popt[3]; static int atexit_registered = 0; /* Print a message. */ #define PRINTMSG(...) do { \ if (cmdname != NULL) \ fprintf(stderr, "%s: ", cmdname); \ fprintf(stderr, __VA_ARGS__); \ fprintf(stderr, "\n"); \ } while (0) /* Print an error message and die. */ #define DIE(...) do { \ PRINTMSG(__VA_ARGS__); \ abort(); \ } while (0) /* Print a warning, if warnings are enabled. */ #define WARN(...) do { \ if (opterr == 0) \ break; \ if (opt_missing != opt_default) \ break; \ PRINTMSG(__VA_ARGS__); \ } while (0) /* Free allocated options array. */ static void atexit_handler(void) { free(opts); opts = NULL; } /* Reset internal state. */ static void reset(int argc, char * const argv[]) { const char * p; /* If we have arguments, stash argv[0] for error messages. */ if (argc > 0) { /* Find the basename, without leading directories. */ for (p = cmdname = argv[0]; *p != '\0'; p++) { if (*p == '/') cmdname = p + 1; } } /* Discard any registered command-line options. */ free(opts); opts = NULL; /* Register atexit handler if we haven't done so already. */ if (!atexit_registered) { atexit(atexit_handler); atexit_registered = 1; } /* We will start scanning from the first option. */ optind = 1; /* We're not in the middle of any packed options. */ packedopts = NULL; /* We haven't found any option yet. */ opt_found = (size_t)(-1); /* We're not initialized yet. */ getopt_initialized = 0; /* Finished resetting state. */ optreset = 0; } /* Search for an option string. */ static size_t searchopt(const char * os) { size_t i; /* Scan the array of options. */ for (i = 0; i < nopts; i++) { /* Is there an option in this slot? */ if (opts[i].os == NULL) continue; /* Does this match up to the length of the option string? */ if (strncmp(opts[i].os, os, opts[i].olen)) continue; /* Do we have