[dev-libs/libtomcrypt] resurrect from g-x86 attic, with rsa_verify_simple.c which was rejected upstream, for StormLib

dev-libs/libtomcrypt/Manifest

@@ -0,0 +1 @@
+DIST crypt-1.17.tar.bz2 1599215 SHA256 e33b47d77a495091c8703175a25c8228aff043140b2554c08a3c3cd71f79d116 SHA512 9335df5ae0a2c8e33e8f03ced0cfb0a8d1ac4bccd007b74818228c3b8b232446b4425356f304a08320b75542a537a46b305b92c3011dee76dfd636497bf57af2 WHIRLPOOL 71f61a270635f5487016efbdffb5867aa880319f5ad3646f41510307925fb1f1d82d29072f8362be1a2c3b71336922cf23aec4ad1d0c7a077d5ff6e920117337

dev-libs/libtomcrypt/files/libtomcrypt-1.17-r2-libtool-tag-and-make-fix.patch

@@ -0,0 +1,37 @@
+--- a/makefile.shared	2009-03-16 11:07:19.000000000 +0100
++++ b/makefile.shared	2009-03-16 11:30:25.000000000 +0100
+@@ -9,7 +9,7 @@
+ VERSION=0:117
+ 
+ # Compiler and Linker Names
+-CC=libtool --mode=compile --tag=CC gcc 
++CC=libtool --mode=compile --tag CC gcc 
+ 
+ # ranlib tools
+ ifndef RANLIB
+@@ -244,7 +244,7 @@
+ library: $(LIBNAME)
+ 
+ testprof/$(LIBTEST):
+-	cd testprof ; CFLAGS="$(CFLAGS)" GROUP=$(GROUP) USER=$(USER) VERSION=$(VERSION) LIBPATH=$(LIBPATH) LIBTEST=$(LIBTEST) LIBTEST_S=$(LIBTEST_S) make -f makefile.shared
++	cd testprof ; CFLAGS="$(CFLAGS)" GROUP=$(GROUP) USER=$(USER) VERSION=$(VERSION) LIBPATH=$(LIBPATH) LIBTEST=$(LIBTEST) LIBTEST_S=$(LIBTEST_S) $(MAKE) -f makefile.shared
+ 
+ objs: $(OBJECTS)
+ 
+@@ -253,7 +253,7 @@
+ 
+ install: $(LIBNAME)
+ 	install -d -g $(GROUP) -o $(USER) $(DESTDIR)$(LIBPATH)
+-	cd testprof ; CFLAGS="$(CFLAGS)" GROUP=$(GROUP) USER=$(USER) VERSION=$(VERSION) LIBPATH=$(LIBPATH) LIBTEST=$(LIBTEST) LIBTEST_S=$(LIBTEST_S) DESTDIR=$(DESTDIR) make -f makefile.shared install
++	cd testprof ; CFLAGS="$(CFLAGS)" GROUP=$(GROUP) USER=$(USER) VERSION=$(VERSION) LIBPATH=$(LIBPATH) LIBTEST=$(LIBTEST) LIBTEST_S=$(LIBTEST_S) DESTDIR=$(DESTDIR) $(MAKE) -f makefile.shared install
+ 	libtool --silent --mode=install install -c libtomcrypt.la $(DESTDIR)$(LIBPATH)/libtomcrypt.la
+ 	install -d -g $(GROUP) -o $(USER) $(DESTDIR)$(INCPATH)
+ 	install -g $(GROUP) -o $(USER) $(HEADERS) $(DESTDIR)$(INCPATH)
+--- a/testprof/makefile.shared	2009-03-16 11:26:19.000000000 +0100
++++ b/testprof/makefile.shared	2009-03-16 11:26:47.000000000 +0100
+@@ -1,4 +1,4 @@
+-CC=libtool --mode=compile gcc
++CC=libtool --mode=compile --tag CC gcc
+ 
+ CFLAGS += -I../src/headers -I./ -Wall -W
+ 

dev-libs/libtomcrypt/files/rsa_verify_simple.c

@@ -0,0 +1,87 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis
+ *
+ * LibTomCrypt is a library that provides various cryptographic
+ * algorithms in a highly modular and flexible manner.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ *
+ * Tom St Denis, tomstdenis@gmail.com, http://libtom.org
+ */
+#include "../../headers/tomcrypt.h"
+
+/**
+  @file rsa_verify_simple.c
+  Created by Ladislav Zezula (zezula@volny.cz) as modification
+  for Blizzard strong signature verification
+*/
+
+#ifdef LTC_MRSA
+
+/**
+  Simple RSA decryption
+  @param sig              The signature data
+  @param siglen           The length of the signature data (octets)
+  @param hash             The hash of the message that was signed
+  @param hashlen          The length of the hash of the message that was signed (octets)
+  @param stat             [out] The result of the signature comparison, 1==valid, 0==invalid
+  @param key              The public RSA key corresponding
+  @return Error code
+*/
+int rsa_verify_simple(const unsigned char *sig,  unsigned long siglen,
+                      const unsigned char *hash, unsigned long hashlen,
+                            int           *stat,
+                            rsa_key       *key)
+{
+  unsigned long modulus_bitlen, modulus_bytelen, x;
+  unsigned char *tmpbuf;
+  int           err;
+
+  LTC_ARGCHK(sig  != NULL);
+  LTC_ARGCHK(hash != NULL);
+  LTC_ARGCHK(stat != NULL);
+  LTC_ARGCHK(key  != NULL);
+
+  /* default to invalid */
+  *stat = 0;
+
+  /* get modulus len in bits */
+  modulus_bitlen = mp_count_bits( (key->N));
+
+  /* outlen must be at least the size of the modulus */
+  modulus_bytelen = mp_unsigned_bin_size( (key->N));
+  if (modulus_bytelen != siglen) {
+     return CRYPT_INVALID_PACKET;
+  }
+
+  /* allocate temp buffer for decoded sig */
+  tmpbuf = XMALLOC(siglen);
+  if (tmpbuf == NULL) {
+     return CRYPT_MEM;
+  }
+
+  /* RSA decode it  */
+  x = siglen;
+  if ((err = ltc_mp.rsa_me(sig, siglen, tmpbuf, &x, PK_PUBLIC, key)) != CRYPT_OK) {
+     XFREE(tmpbuf);
+     return err;
+  }
+
+  /* make sure the output is the right size */
+  if (x != siglen) {
+     XFREE(tmpbuf);
+     return CRYPT_INVALID_PACKET;
+  }
+
+  /* compare the decrypted signature with the given hash */
+  if(x == hashlen && XMEMCMP(tmpbuf, hash, hashlen) == 0)
+      *stat = 1;
+       
+#ifdef LTC_CLEAN_STACK
+  zeromem(tmpbuf, siglen);
+#endif
+  XFREE(tmpbuf);
+  return CRYPT_OK;
+}
+
+#endif /* LTC_MRSA */

dev-libs/libtomcrypt/libtomcrypt-1.17-r7.ebuild

@@ -0,0 +1,57 @@
+# Copyright 1999-2012 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/dev-libs/libtomcrypt/libtomcrypt-1.17-r6.ebuild,v 1.2 2012/02/25 15:22:17 jer Exp $
+
+EAPI="2"
+
+inherit flag-o-matic multilib toolchain-funcs
+
+DESCRIPTION="modular and portable cryptographic toolkit"
+HOMEPAGE="http://libtom.org/?page=features&whatfile=crypt"
+SRC_URI="http://libtom.org/files/crypt-${PV}.tar.bz2"
+
+LICENSE="WTFPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~ppc ~x86"
+IUSE="doc"
+
+RDEPEND="dev-libs/libtommath"
+DEPEND="${RDEPEND}
+	doc? ( virtual/latex-base app-text/ghostscript-gpl )"
+
+src_prepare() {
+	use doc || sed -i '/^install:/s:docs::' makefile
+	epatch "${FILESDIR}"/libtomcrypt-1.17-r2-libtool-tag-and-make-fix.patch
+	sed -i \
+		-e "s:--mode=link gcc:--mode=link $(tc-getCC) ${LDFLAGS} --tag CC $(tc-getCC):g" \
+		-e "s: gcc: $(tc-getCC):g" \
+		-e "s:src/pk/rsa/rsa_verify_hash.o :src/pk/rsa/rsa_verify_hash.o src/pk/rsa/rsa_verify_simple.o :g" \
+		{,testprof/}makefile.shared || die
+	cp "${FILESDIR}/rsa_verify_simple.c" "${S}/src/pk/rsa"
+}
+
+src_compile() {
+	append-flags -DLTM_DESC
+	export LIBPATH="/usr/$(get_libdir)"
+	EXTRALIBS="-ltommath" \
+		CC=$(tc-getCC) \
+		IGNORE_SPEED=1 \
+		emake -f makefile.shared \
+		|| die "emake failed"
+}
+
+src_test() {
+	# Tests don't compile
+	true
+}
+
+src_install() {
+	emake -f makefile.shared DESTDIR="${D}" install ||\
+		die "emake install failed"
+	dodoc TODO changes || die "dodoc failed"
+	if use doc ; then
+		dodoc doc/* || die "dodoc failed"
+		docinto notes ; dodoc notes/* || die "dodoc failed"
+		docinto demos ; dodoc demos/* || die "dodoc failed"
+	fi
+}