Amalgamation

.github/workflows/main.yml

@@ -98,3 +98,24 @@ jobs:
           name: build-${{ github.run_id }}.tar.xz
           path: build-${{ github.run_id }}.tar.xz
           retention-days: 1
+
+  Amalgam:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        cc: [ gcc, clang ]
+        os: [ ubuntu-22.04, ubuntu-24.04 ]
+    steps:
+      - uses: actions/checkout@v4
+      - name: install dependencies
+        run: |
+          sudo apt-get update -qq
+          sudo apt-get remove -y libtommath1
+          curl -s https://packagecloud.io/install/repositories/libtom/packages/script.deb.sh | sudo bash
+          sudo apt-get install libtommath-git-dev
+      - name: run tests
+        env:
+          CC: "${{ matrix.cc }}"
+        run: |
+          make pre_gen
+          make CFLAGS="-DLTM_DESC -DUSE_LTM" EXTRALIBS="-ltommath" AMALGAM=1 -j$(nproc) check

.gitignore

@@ -10,6 +10,7 @@
 # release files
 /libtomcrypt-*
 /crypt-*
+pre_gen/
 
 # suppress output of build process
 gcc_[12].txt

demos/timing.c

@@ -528,12 +528,12 @@ static void time_mult(void)
    if (ltc_mp.name == NULL) return;
 
    fprintf(stderr, "Timing Multiplying:\n");
-   mp_init_multi(&a,&b,&c,NULL);
-   for (x = 128/MP_DIGIT_BIT; x <= (unsigned long)1536/MP_DIGIT_BIT; x += 128/MP_DIGIT_BIT) {
-       mp_rand(a, x);
-       mp_rand(b, x);
+   ltc_mp_init_multi(&a,&b,&c,NULL);
+   for (x = 128/LTC_MP_DIGIT_BIT; x <= (unsigned long)1536/LTC_MP_DIGIT_BIT; x += 128/LTC_MP_DIGIT_BIT) {
+       ltc_mp_rand(a, x);
+       ltc_mp_rand(b, x);
 
-#define DO1 mp_mul(a, b, c);
+#define DO1 ltc_mp_mul(a, b, c);
 #define DO2 DO1; DO1;
 
        t2 = -1;
@@ -544,9 +544,9 @@ static void time_mult(void)
            t1 = (t_read() - t1)>>1;
            if (t1 < t2) t2 = t1;
        }
-       fprintf(stderr, "%4lu bits: %9"PRI64"u cycles\n", x*MP_DIGIT_BIT, t2);
+       fprintf(stderr, "%4lu bits: %9"PRI64"u cycles\n", x*LTC_MP_DIGIT_BIT, t2);
    }
-   mp_clear_multi(a,b,c,NULL);
+   ltc_mp_deinit_multi(a,b,c,NULL);
 
 #undef DO1
 #undef DO2
@@ -561,11 +561,11 @@ static void time_sqr(void)
    if (ltc_mp.name == NULL) return;
 
    fprintf(stderr, "Timing Squaring:\n");
-   mp_init_multi(&a,&b,NULL);
-   for (x = 128/MP_DIGIT_BIT; x <= (unsigned long)1536/MP_DIGIT_BIT; x += 128/MP_DIGIT_BIT) {
-       mp_rand(a, x);
+   ltc_mp_init_multi(&a,&b,NULL);
+   for (x = 128/LTC_MP_DIGIT_BIT; x <= (unsigned long)1536/LTC_MP_DIGIT_BIT; x += 128/LTC_MP_DIGIT_BIT) {
+       ltc_mp_rand(a, x);
 
-#define DO1 mp_sqr(a, b);
+#define DO1 ltc_mp_sqr(a, b);
 #define DO2 DO1; DO1;
 
        t2 = -1;
@@ -576,9 +576,9 @@ static void time_sqr(void)
            t1 = (t_read() - t1)>>1;
            if (t1 < t2) t2 = t1;
        }
-       fprintf(stderr, "%4lu bits: %9"PRI64"u cycles\n", x*MP_DIGIT_BIT, t2);
+       fprintf(stderr, "%4lu bits: %9"PRI64"u cycles\n", x*LTC_MP_DIGIT_BIT, t2);
    }
-   mp_clear_multi(a,b,NULL);
+   ltc_mp_deinit_multi(a,b,NULL);
 
 #undef DO1
 #undef DO2

demos/tv_gen.c

@@ -670,31 +670,31 @@ static void ecc_gen(void)
    fprintf(out, "ecc vectors.  These are for kG for k=1,3,9,27,...,3**n until k > order of the curve outputs are <k,x,y> triplets\n\n");
    G = ltc_ecc_new_point();
    R = ltc_ecc_new_point();
-   mp_init(&k);
-   mp_init(&order);
-   mp_init(&modulus);
-   mp_init(&a);
+   ltc_mp_init(&k);
+   ltc_mp_init(&order);
+   ltc_mp_init(&modulus);
+   ltc_mp_init(&a);
 
    for (x = 0; ltc_ecc_curves[x].prime != NULL; x++) {
         fprintf(out, "%s\n", ltc_ecc_curves[x].OID);
-        mp_set(k, 1);
+        ltc_mp_set(k, 1);
 
-        mp_read_radix(order,   ltc_ecc_curves[x].order, 16);
-        mp_read_radix(modulus, ltc_ecc_curves[x].prime, 16);
-        mp_read_radix(a,       ltc_ecc_curves[x].A,     16);
-        mp_read_radix(G->x,    ltc_ecc_curves[x].Gx,    16);
-        mp_read_radix(G->y,    ltc_ecc_curves[x].Gy,    16);
-        mp_set(G->z, 1);
+        ltc_mp_read_radix(order,   ltc_ecc_curves[x].order, 16);
+        ltc_mp_read_radix(modulus, ltc_ecc_curves[x].prime, 16);
+        ltc_mp_read_radix(a,       ltc_ecc_curves[x].A,     16);
+        ltc_mp_read_radix(G->x,    ltc_ecc_curves[x].Gx,    16);
+        ltc_mp_read_radix(G->y,    ltc_ecc_curves[x].Gy,    16);
+        ltc_mp_set(G->z, 1);
 
-        while (mp_cmp(k, order) == LTC_MP_LT) {
+        while (ltc_mp_cmp(k, order) == LTC_MP_LT) {
             ltc_mp.ecc_ptmul(k, G, R, a, modulus, 1);
-            mp_tohex(k,    (char*)str); fprintf(out, "%s, ", (char*)str);
-            mp_tohex(R->x, (char*)str); fprintf(out, "%s, ", (char*)str);
-            mp_tohex(R->y, (char*)str); fprintf(out, "%s\n", (char*)str);
-            mp_mul_d(k, 3, k);
+            ltc_mp_tohex(k,    (char*)str); fprintf(out, "%s, ", (char*)str);
+            ltc_mp_tohex(R->x, (char*)str); fprintf(out, "%s, ", (char*)str);
+            ltc_mp_tohex(R->y, (char*)str); fprintf(out, "%s\n", (char*)str);
+            ltc_mp_mul_d(k, 3, k);
         }
    }
-   mp_clear_multi(k, order, modulus, a, LTC_NULL);
+   ltc_mp_deinit_multi(k, order, modulus, a, LTC_NULL);
    ltc_ecc_del_point(G);
    ltc_ecc_del_point(R);
    fclose(out);

doc/crypt.tex

@@ -8896,6 +8896,28 @@ \subsection{Installation Directories}
 endif()
 \end{verbatim}
 
+
+\mysection{Amalgamated library}
+
+LibTomCrypt can also be built as an amalgamated library, i.e. as a single C source file + the header files.
+
+A release of the library contains the amalgamation in the path \texttt{pre\_gen/tomcrypt\_amalgam.c}.
+
+To create the amalgamation one can run:
+
+\begin{verbatim}
+make pre_gen
+\end{verbatim}
+
+The makefiles also support building the amalgamated library via:
+
+\begin{verbatim}
+make CFLAGS="-DLTM_DESC" EXTRALIBS=-ltommath AMALGAM=1
+\end{verbatim}
+
+This will build the library and link against LibTomMath (which must be installed on your system).
+
+
 \mysection{Header Configuration}
 The file \textit{tomcrypt\_cfg.h} is what lets you control various high level macros which control the behaviour of the library.  Build options are also
 stored in \textit{tomcrypt\_custom.h} which allow the enabling and disabling of various algorithms.

makefile

@@ -143,3 +143,22 @@ coverage: $(call print-help,coverage,Create code-coverage of the library - but b
 
 # cleans everything - coverage output and standard 'clean'
 cleancov: cleancov-clean clean
+ifndef AMALGAM
+AMALGAM_FILTER_OUT = src/ciphers/aes/aes_enc.c src/ciphers/aes/aes_enc_desc.c
+TAB_SOURCES = src/ciphers/aes/aes_tab.c src/ciphers/safer/safer_tab.c src/hashes/whirl/whirltab.c src/stream/sober128/sober128tab.c
+SOURCES = $(filter-out $(AMALGAM_FILTER_OUT),$(OBJECTS:.o=.c))
+pre_gen/tomcrypt_amalgam.c: $(TAB_SOURCES) $(SOURCES)
+	mkdir -p pre_gen
+	printf "/*\n * This file has been auto-generated, do not edit!\n */\n\n" > $@
+	printf "#define LTC_AES_TAB_C\n" >> $@
+	printf "#define LTC_SAFER_TAB_C\n" >> $@
+	printf "#define LTC_SOBER128TAB_C\n" >> $@
+	printf "#define LTC_WHIRLTAB_C\n\n" >> $@
+	printf "#include \"tomcrypt_private.h\"\n\n" >> $@
+	cat $^ >> $@
+
+pre_gen: pre_gen/tomcrypt_amalgam.c
+
+.PHONY: pre_gen/tomcrypt_amalgam.c
+endif
+

makefile_include.mk

@@ -210,6 +210,7 @@ library: $(call print-help,library,Builds the library) $(LIBNAME)
 
 
 # List of objects to compile (all goes to libtomcrypt.a)
+ifndef AMALGAM
 OBJECTS=src/ciphers/aes/aes.o src/ciphers/aes/aes_desc.o src/ciphers/aes/aes_enc.o \
 src/ciphers/aes/aes_enc_desc.o src/ciphers/aes/aesni.o src/ciphers/anubis.o src/ciphers/blowfish.o \
 src/ciphers/camellia.o src/ciphers/cast5.o src/ciphers/des.o src/ciphers/idea.o src/ciphers/kasumi.o \
@@ -401,6 +402,11 @@ src/stream/salsa20/xsalsa20_setup.o src/stream/salsa20/xsalsa20_test.o \
 src/stream/sober128/sober128_stream.o src/stream/sober128/sober128_stream_memory.o \
 src/stream/sober128/sober128_test.o src/stream/sosemanuk/sosemanuk.o \
 src/stream/sosemanuk/sosemanuk_memory.o src/stream/sosemanuk/sosemanuk_test.o
+else
+OBJECTS=pre_gen/tomcrypt_amalgam.o
+
+LTC_CFLAGS := $(LTC_CFLAGS) -Wno-shadow -Isrc/ciphers/aes -Isrc/ciphers/safer -Isrc/ciphers/twofish -Isrc/hashes/whirl -Isrc/stream/sober128
+endif
 
 # List of test objects to compile (all goes to libtomcrypt_prof.a)
 TOBJECTS=tests/base16_test.o tests/base32_test.o tests/base64_test.o tests/bcrypt_test.o \
@@ -537,6 +543,7 @@ zipup: $(call print-help,zipup,Prepare the archives for a release) doc/crypt.pdf
 	-@(find libtomcrypt-$(VERSION)/ -type f | xargs grep 'FIXM[E]') && echo '############## BEWARE: the "fixme" marker was found !!! ##############' || true
 	mkdir -p libtomcrypt-$(VERSION)/doc
 	cp doc/crypt.pdf libtomcrypt-$(VERSION)/doc/crypt.pdf
+	$(MAKE) -C libtomcrypt-$(VERSION)/ pre_gen
 	tar -c libtomcrypt-$(VERSION)/ | xz -6e -c - > crypt-$(VERSION).tar.xz
 	zip -9rq crypt-$(VERSION).zip libtomcrypt-$(VERSION)
 	rm -rf libtomcrypt-$(VERSION)

src/ciphers/aes/aes.c

@@ -62,8 +62,10 @@ const struct ltc_cipher_descriptor rijndael_enc_desc =
 
 #endif
 
+#ifndef LTC_AES_TAB_C
 #define LTC_AES_TAB_C
 #include "aes_tab.c"
+#endif
 
 static ulong32 setup_mix(ulong32 temp)
 {
@@ -726,5 +728,11 @@ int ECB_KS(int *keysize)
    return CRYPT_OK;
 }
 
-#endif
+#undef SETUP
+#undef ECB_ENC
+#undef ECB_DEC
+#undef ECB_DONE
+#undef ECB_TEST
+#undef ECB_KS
 
+#endif

src/ciphers/anubis.c

@@ -26,6 +26,14 @@ const struct ltc_cipher_descriptor anubis_desc = {
 
 #define MAX_N           10
 
+
+#define T0 anubis_T0
+#define T1 anubis_T1
+#define T2 anubis_T2
+#define T3 anubis_T3
+#define T4 anubis_T4
+#define T5 anubis_T5
+#define rc anubis_rc
 /*
  * Though Anubis is endianness-neutral, the encryption tables are listed
  * in BIG-ENDIAN format, which is adopted throughout this implementation
@@ -1546,5 +1554,14 @@ int anubis_keysize(int *keysize)
    return CRYPT_OK;
 }
 
+#undef MAX_N
+#undef T0
+#undef T1
+#undef T2
+#undef T3
+#undef T4
+#undef T5
+#undef rc
+
 #endif
 

src/ciphers/blowfish.c

@@ -654,5 +654,7 @@ int blowfish_keysize(int *keysize)
    return CRYPT_OK;
 }
 
+#undef F
+
 #endif
 

src/ciphers/camellia.c

@@ -717,4 +717,6 @@ int camellia_keysize(int *keysize)
    return CRYPT_OK;
 }
 
+#undef loc
+
 #endif

src/ciphers/cast5.c

@@ -491,6 +491,7 @@ int cast5_setup(const unsigned char *key, int keylen, int num_rounds, symmetric_
 }
 #endif
 
+#define FI cast5_FI
 LTC_INLINE static ulong32 FI(ulong32 R, ulong32 Km, ulong32 Kr)
 {
    ulong32 I;
@@ -702,4 +703,7 @@ int cast5_keysize(int *keysize)
    return CRYPT_OK;
 }
 
+#undef GB
+#undef FI
+
 #endif

src/ciphers/des.c

@@ -2238,5 +2238,8 @@ int des3_keysize(int *keysize)
     return CRYPT_OK;
 }
 
+#undef EN0
+#undef DE1
+
 #endif
 

src/ciphers/idea.c

@@ -66,6 +66,7 @@ static ushort16 s_add_inv(ushort16 x)
    return LOW16(0 - x);
 }
 
+#define s_setup_key s_idea_setup_key
 static int s_setup_key(const unsigned char *key, symmetric_key *skey)
 {
    int i, j;
@@ -247,4 +248,11 @@ int idea_test(void)
 #endif
 }
 
+#undef LOW16
+#undef HIGH16
+#undef MUL
+#undef STORE16
+#undef LOAD16
+#undef s_setup_key
+
 #endif

src/ciphers/kasumi.c

@@ -28,6 +28,7 @@ const struct ltc_cipher_descriptor kasumi_desc = {
    NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
 };
 
+#define FI kasumi_FI
 static u16 FI( u16 in, u16 subkey )
 {
    u16 nine, seven;
@@ -304,4 +305,7 @@ int kasumi_test(void)
 #endif
 }
 
+#undef ROL16
+#undef FI
+
 #endif

src/ciphers/khazad.c

@@ -837,4 +837,6 @@ int khazad_keysize(int *keysize)
    return CRYPT_INVALID_KEYSIZE;
 }
 
+#undef R
+
 #endif

src/ciphers/kseed.c

@@ -363,4 +363,7 @@ int kseed_keysize(int *keysize)
    return CRYPT_OK;
 }
 
+#undef G
+#undef F
+
 #endif

src/ciphers/noekeon.c

@@ -313,5 +313,12 @@ int noekeon_keysize(int *keysize)
    return CRYPT_OK;
 }
 
+#undef kTHETA
+#undef THETA
+#undef GAMMA
+#undef PI1
+#undef PI2
+#undef ROUND
+
 #endif
 

src/ciphers/rc5.c

@@ -24,6 +24,7 @@ const struct ltc_cipher_descriptor rc5_desc =
     NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
 };
 
+#define stab rc5_stab
 static const ulong32 stab[50] = {
 0xb7e15163UL, 0x5618cb1cUL, 0xf45044d5UL, 0x9287be8eUL, 0x30bf3847UL, 0xcef6b200UL, 0x6d2e2bb9UL, 0x0b65a572UL,
 0xa99d1f2bUL, 0x47d498e4UL, 0xe60c129dUL, 0x84438c56UL, 0x227b060fUL, 0xc0b27fc8UL, 0x5ee9f981UL, 0xfd21733aUL,
@@ -317,6 +318,8 @@ int rc5_keysize(int *keysize)
    return CRYPT_OK;
 }
 
+#undef stab
+
 #endif