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-rw-r--r--lcrypt/Makefile7
-rw-r--r--lcrypt/lcrypt.c47
-rw-r--r--lcrypt/lcrypt_rsa.c115
3 files changed, 34 insertions, 135 deletions
diff --git a/lcrypt/Makefile b/lcrypt/Makefile
deleted file mode 100644
index 0347ee8..0000000
--- a/lcrypt/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-CFLAGS += -O3 -Wall -DLITTLE_ENDIAN -DLTM_DESC -DLTC_SOURCE -DUSE_LTM -fPIC -I$(TOMCRYPT)/src/headers -I$(LUA)/src -I../src
-
-lcrypt.o: lcrypt.c lcrypt_ciphers.c lcrypt_hashes.c lcrypt_math.c lcrypt_bits.c lcrypt_rsa.c
- $(CC) $(CFLAGS) -c lcrypt.c -o $@
-
-clean:
- rm -f lcrypt.o lcrypt.so
diff --git a/lcrypt/lcrypt.c b/lcrypt/lcrypt.c
index 5ca67cf..779504e 100644
--- a/lcrypt/lcrypt.c
+++ b/lcrypt/lcrypt.c
@@ -45,7 +45,6 @@ static void* lcrypt_malloc(lua_State *L, size_t size)
#include "lcrypt_hashes.c"
//#include "lcrypt_math.c"
#include "lcrypt_bits.c"
-#include "lcrypt_rsa.c"
static int lcrypt_tohex(lua_State *L)
{
@@ -221,20 +220,42 @@ static int lcrypt_time(lua_State *L)
static int lcrypt_random(lua_State *L)
{
int len = luaL_checkint(L, 1);
- FILE *fp;
char *buffer = lcrypt_malloc(L, len);
- if(unlikely((fp = fopen("/dev/urandom", "rb")) == NULL))
- {
- lua_pushstring(L, "Unable to open /dev/urandom.");
- (void)lua_error(L);
- }
- if(unlikely(fread(buffer, len, 1, fp) != 1))
- {
+ #ifdef _WIN32
+ HMODULE hLib = LoadLibrary("ADVAPI32.DLL");
+ if (unlikely(!hLib))
+ {
+ lua_pushstring(L, "Unable to open ADVAPI32.DLL");
+ (void)lua_error(L);
+ }
+ BOOLEAN (APIENTRY *pfn)(void *, ULONG) =
+ (BOOLEAN (APIENTRY *)(void *, ULONG)) GetProcAddress(hLib, "SystemFunction036");
+ if (unlikely(!pfn))
+ {
+ lua_pushstring(L, "Unable to open ADVAPI32.DLL");
+ (void)lua_error(L);
+ }
+ ULONG ulCbBuff = len;
+ if (unlikely(!pfn(buffer, ulCbBuff)))
+ {
+ lua_pushstring(L, "Call to SystemFunction036 failed.");
+ (void)lua_error(L);
+ }
+ #else
+ FILE *fp;
+ if(unlikely((fp = fopen("/dev/urandom", "rb")) == NULL))
+ {
+ lua_pushstring(L, "Unable to open /dev/urandom.");
+ (void)lua_error(L);
+ }
+ if(unlikely(fread(buffer, len, 1, fp) != 1))
+ {
+ fclose(fp);
+ lua_pushstring(L, "Unable to read /dev/urandom.");
+ (void)lua_error(L);
+ }
fclose(fp);
- lua_pushstring(L, "Unable to read /dev/urandom.");
- (void)lua_error(L);
- }
- fclose(fp);
+ #endif
lua_pushlstring(L, buffer, len);
free(buffer);
return 1;
diff --git a/lcrypt/lcrypt_rsa.c b/lcrypt/lcrypt_rsa.c
deleted file mode 100644
index 77ea4a2..0000000
--- a/lcrypt/lcrypt_rsa.c
+++ /dev/null
@@ -1,115 +0,0 @@
-const char * lcrypt_rsa = ""
-"rsa = {}\n"
-"\n"
-"function rsa:pkcs1_pad(data, out_length)\n"
-" local asn1 = string.char(0x00, 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1a, 0x05, 0x00, 0x04, 0x14)\n"
-" return string.char(0x00, 0x01) .. string.char(0xff):rep(out_length - #asn1 - #data - 2) .. asn1 .. data\n"
-"end\n"
-"\n"
-"function rsa:encode_int(value, len)\n"
-" local ret = ''\n"
-" for i=1,len do\n"
-" ret = string.char(value % 256) .. ret\n"
-" value = math.floor(value / 256)\n"
-" end\n"
-" return ret\n"
-"end\n"
-"\n"
-"function rsa:oaep_g(data, out_length)\n"
-" local out,counter = '', 0\n"
-" while #out < out_length do\n"
-" out = out .. lcrypt.hashes.sha1:hash(data .. self:encode_int(counter, 4)):done()\n"
-" counter = counter + 1\n"
-" end\n"
-" return out:sub(1, out_length)\n"
-"end\n"
-"\n"
-"function rsa:oaep_pad(data, param, out_length)\n"
-" out_length = out_length - 1\n"
-" local h_length = #data\n"
-" local g_length = out_length - h_length\n"
-" local seed = lcrypt.random(h_length)\n"
-" local c = lcrypt.hashes.sha1:hash(param):done()\n"
-" c = c .. string.rep(string.char(0), g_length - h_length - 2 - #c) .. string.char(0, 1) .. data\n"
-" local x = lcrypt.xor(c, self:oaep_g(seed, g_length))\n"
-" local y = lcrypt.xor(seed, self:oaep_g(x, h_length))\n"
-" return string.char(0) .. x .. y\n"
-"end\n"
-"\n"
-"function rsa:oaep_unpad(data, param, out_length)\n"
-" data = data:sub(2, #data)\n"
-" local g_length = #data - out_length\n"
-" local x = data:sub(1, g_length)\n"
-" local seed = lcrypt.xor(self:oaep_g(x, out_length), data:sub(g_length +1, #data))\n"
-" local c = lcrypt.xor(x, self:oaep_g(seed, g_length))\n"
-" local v = lcrypt.hashes.sha1:hash(param):done()\n"
-" if c:sub(1,#v) == v then return c:sub(g_length - out_length + 1, #c) end\n"
-"end\n"
-"\n"
-"function rsa:prime(bits)\n"
-" bits = math.floor(bits)\n"
-" if bits < 24 then return end\n"
-" local ret, high, bytes = nil, 1, math.floor((bits - 7) / 8)\n"
-" for i=1,bits-bytes*8-1 do high = 1 + high + high end\n"
-" high = string.char(high)\n"
-" low = lcrypt.random(1):byte()\n"
-" if low / 2 == math.floor(low / 2) then low = low + 1 end\n"
-" low = string.char(low)\n"
-" bytes = bytes - 1\n"
-" repeat\n"
-" ret = lcrypt.bigint(high .. lcrypt.random(bytes) .. low)\n"
-" until ret.isprime\n"
-" return ret\n"
-"end\n"
-"\n"
-"function rsa:gen_key(bits, e)\n"
-" local key,one,p1,q1 = { e=lcrypt.bigint(e) }, lcrypt.bigint(1), nil, nil\n"
-" bits = bits / 2\n"
-" repeat\n"
-" key.p = self:prime(bits)\n"
-" p1 = key.p - one\n"
-" until p1:gcd(key.e) == one\n"
-" repeat\n"
-" key.q = self:prime(bits)\n"
-" q1 = key.q - one\n"
-" until q1:gcd(key.e) == one\n"
-" key.d = key.e:invmod(p1:lcm(q1))\n"
-" key.n = key.p * key.q\n"
-" key.dp = key.d % p1\n"
-" key.dq = key.d % q1\n"
-" key.qp = key.q:invmod(key.p)\n"
-" return key\n"
-"end\n"
-"\n"
-"function rsa:private(msg, key)\n"
-" msg = lcrypt.bigint(msg)\n"
-" local a,b = msg:exptmod(key.dp, key.p), msg:exptmod(key.dq, key.q)\n"
-" local ret = tostring(key.qp:mulmod(a - b, key.p) * key.q + b)\n"
-" if ret:byte(1) == 0 then ret = ret:sub(2, #ret) end\n"
-" return ret\n"
-"end\n"
-"\n"
-"function rsa:public(msg, key)\n"
-" return tostring(lcrypt.bigint(msg):exptmod(key.e, key.n))\n"
-"end\n"
-"\n"
-"function rsa:sign_pkcs1(msg, key)\n"
-" return self:private(self:pkcs1_pad(lcrypt.hashes.sha1:hash(msg):done(), key.n.bits / 8), key)\n"
-"end\n"
-"\n"
-"function rsa:verify_pkcs1(signature, msg, key)\n"
-" msg = lcrypt.hashes.sha1:hash(msg):done()\n"
-" local tmp = self:public(signature, key)\n"
-" if tmp:sub(#tmp - #msg + 1, #tmp) == msg then return true end\n"
-"end\n"
-"\n"
-"function rsa:sign_oaep(msg, param, key)\n"
-" return self:private(self:oaep_pad(lcrypt.hashes.sha1:hash(msg):done(), param, key.n.bits / 8), key)\n"
-"end\n"
-"\n"
-"function rsa:verify_oaep(signature, msg, param, key)\n"
-" local tmp = self:public(signature, key)\n"
-" local h = self:oaep_unpad(tmp, param, 20)\n"
-" if h == lcrypt.hashes.sha1:hash(msg):done() then return true end\n"
-"end\n"
-"";
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 17:24:05 +0000