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-rw-r--r--lcrypt/lcrypt.c359
-rw-r--r--lcrypt/lcrypt_math.c283
-rw-r--r--lcrypt/lcrypt_rsa2.c115
3 files changed, 206 insertions, 551 deletions
diff --git a/lcrypt/lcrypt.c b/lcrypt/lcrypt.c
index ed514dd..620c88b 100644
--- a/lcrypt/lcrypt.c
+++ b/lcrypt/lcrypt.c
@@ -11,16 +11,7 @@
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
-#include <tomcrypt.h>
-#include <termios.h>
-
-#ifdef USE_NCIPHER
- #include "ncipher.h"
- extern NFastApp_Connection nfast_conn;
- extern NFast_AppHandle nfast_app;
-#else
- #include <pty.h>
-#endif
+#include "tomcrypt.h"
#define likely(x) __builtin_expect((x),1)
#define unlikely(x) __builtin_expect((x),0)
@@ -217,12 +208,6 @@ static int lcrypt_xor(lua_State *L)
return 1;
}
-static int lcrypt_sleep(lua_State *L)
-{
- usleep(1000000.0 * luaL_checknumber(L, 1));
- return(0);
-}
-
static int lcrypt_time(lua_State *L)
{
double ret;
@@ -236,275 +221,25 @@ static int lcrypt_time(lua_State *L)
static int lcrypt_random(lua_State *L)
{
int len = luaL_checkint(L, 1);
- #ifdef USE_NCIPHER
- M_Command command;
- M_Reply reply;
- M_Status rc;
- memset(&command, 0, sizeof(command));
- memset(&reply, 0, sizeof(reply));
- command.cmd = Cmd_GenerateRandom;
- command.args.generaterandom.lenbytes = len;
- if(unlikely((rc = NFastApp_Transact(nfast_conn, NULL, &command, &reply, NULL)) != Status_OK))
- {
- lua_pushstring(L, NF_Lookup(rc, NF_Status_enumtable));
- (void)lua_error(L);
- }
- if(unlikely(reply.status != Status_OK))
- {
- lua_pushstring(L, NF_Lookup(reply.status, NF_Status_enumtable));
- (void)lua_error(L);
- }
- if(unlikely(len != reply.reply.generaterandom.data.len))
- {
- lua_pushstring(L, "Wrong length returned");
- (void)lua_error(L);
- }
- lua_pushlstring(L, reply.reply.generaterandom.data.ptr, len);
- NFastApp_Free_Reply(nfast_app, NULL, NULL, &reply);
- #else
- 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))
- {
- fclose(fp);
- lua_pushstring(L, "Unable to read /dev/urandom.");
- (void)lua_error(L);
- }
- fclose(fp);
- lua_pushlstring(L, buffer, len);
- free(buffer);
- #endif
- return 1;
-}
-
-static FILE *lgetfile(lua_State *L, int index)
-{
- FILE **fp = lua_touserdata(L, index);
- if(unlikely(fp == NULL)) return NULL;
- if(lua_getmetatable(L, index))
+ FILE *fp;
+ char *buffer = lcrypt_malloc(L, len);
+ if(unlikely((fp = fopen("/dev/urandom", "rb")) == NULL))
{
- lua_getfield(L, LUA_REGISTRYINDEX, LUA_FILEHANDLE);
- if(lua_rawequal(L, -1, -2))
- {
- lua_pop(L, 2);
- return *fp;
- }
- lua_pop(L, 2);
- }
- return NULL;
-}
-
-static int lcrypt_tcsetattr(lua_State* L)
-{
- struct termios old, new;
- FILE *fp = lgetfile(L, 1);
- if(unlikely(fp == NULL)) return 0;
- if(unlikely(tcgetattr(fileno(fp), &old) != 0)) return 0;
- new = old;
- new.c_iflag = luaL_optint(L, 2, old.c_iflag);
- new.c_oflag = luaL_optint(L, 3, old.c_oflag);
- new.c_cflag = luaL_optint(L, 4, old.c_cflag);
- new.c_lflag = luaL_optint(L, 5, old.c_lflag);
- if(unlikely(tcsetattr(fileno(fp), TCSAFLUSH, &new) != 0)) return 0;
- lua_pushinteger(L, new.c_iflag);
- lua_pushinteger(L, new.c_oflag);
- lua_pushinteger(L, new.c_cflag);
- lua_pushinteger(L, new.c_lflag);
- return 4;
-}
-
-static int lcrypt_flag_add(lua_State *L)
-{
- uint32_t a = luaL_checkint(L, 1);
- uint32_t b = luaL_checkint(L, 2);
- lua_pushinteger(L, a | b);
- return 1;
-}
-
-static int lcrypt_flag_remove(lua_State *L)
-{
- uint32_t a = luaL_checkint(L, 1);
- uint32_t b = luaL_checkint(L, 2);
- lua_pushinteger(L, a & ~b);
- return 1;
-}
-
-#ifndef USE_NCIPHER
-
-typedef struct
-{
- int fd;
- int pid;
- char *command;
-} lcrypt_spawn_t;
-
-static int lcrypt_spawn(lua_State *L)
-{
- int fd, pid, argc;
- #define MAX_ARGUMENT 128
- const char *command = luaL_checkstring(L, 1);
- char *cmd = strdup(command);
- char *pos = cmd, *p;
- char *argv[MAX_ARGUMENT];
- for(argc = 0; argc < MAX_ARGUMENT-1; argc++)
- {
- // eat whitespace
- while(*pos == ' ' || *pos == '\t' || *pos == '\n' || *pos == '\r')
- {
- if(*pos == '\\') for(p = pos; *p != '\0'; p++) *p = *(p + 1);
- pos++;
- }
- // start of argument found
- argv[argc] = pos;
- if(*argv[argc] == '"' || *argv[argc] == '\'') // quoted argument
- {
- pos++;
- while(*pos != *argv[argc] && *pos != '\0')
- {
- if(*pos == '\\') for(p = pos; *p != '\0'; p++) *p = *(p + 1);
- pos++;
- }
- argv[argc]++;
- }
- else // non-quoted argument
- {
- while(*pos != ' ' && *pos != '\t' && *pos != '\n' && *pos != '\r' && *pos != '\0')
- {
- if(*pos == '\\') for(p = pos; *p != '\0'; p++) *p = *(p + 1);
- pos++;
- }
- }
- if(*pos == '\0') break;
- *pos++ = '\0';
- }
- argv[++argc] = NULL;
-
- errno = 0;
- pid = forkpty(&fd, NULL, NULL, NULL);
- if(pid == 0) // child
- {
- execvp(argv[0], argv);
- // if we get here, it's an error!
- perror("'unable to spawn process");
- return 0;
- }
- else if(errno != 0)
- {
- lua_pushnil(L);
- lua_pushstring(L, strerror(errno));
- return 2;
- }
- else
- {
- lcrypt_spawn_t *lsp = lua_newuserdata(L, sizeof(lcrypt_spawn_t));
- lsp->fd = fd;
- lsp->pid = pid;
- lsp->command = cmd;
- luaL_getmetatable(L, "LSPAWN");
- (void)lua_setmetatable(L, -2);
- return 1;
- }
-}
-
-static int lcrypt_spawn_close(lua_State *L)
-{
- lcrypt_spawn_t *lsp = (lcrypt_spawn_t*)luaL_checkudata(L, 1, "LSPAWN");
- if(lsp->pid > 0)
- {
- (void)kill(lsp->pid, SIGQUIT);
- lsp->pid = -1;
- }
- if(lsp->fd >= 0)
- {
- (void)close(lsp->fd);
- lsp->fd = -1;
- }
- if(lsp->command != NULL)
- {
- free(lsp->command);
- lsp->command = NULL;
- }
- return 0;
-}
-
-static int lcrypt_spawn_read(lua_State *L)
-{
- lcrypt_spawn_t *lsp = (lcrypt_spawn_t*)luaL_checkudata(L, 1, "LSPAWN");
- int count = luaL_optint(L, 2, 4096);
- char *buffer;
- if(lsp->fd < 0)
- {
- lua_pushstring(L, "Spawn closed");
- lua_error(L);
- return 0;
- }
- if((buffer = malloc(count)) == NULL)
- {
- lua_pushnil(L);
- lua_pushstring(L, "Unable to allocate memory");
- return 2;
+ lua_pushstring(L, "Unable to open /dev/urandom.");
+ (void)lua_error(L);
}
- count = read(lsp->fd, buffer, count);
- if(errno != 0)
+ if(unlikely(fread(buffer, len, 1, fp) != 1))
{
- free(buffer);
- lua_pushnil(L);
- lua_pushstring(L, strerror(errno));
- return 2;
+ fclose(fp);
+ lua_pushstring(L, "Unable to read /dev/urandom.");
+ (void)lua_error(L);
}
- lua_pushlstring(L, buffer, count);
+ fclose(fp);
+ lua_pushlstring(L, buffer, len);
free(buffer);
return 1;
}
-static int lcrypt_spawn_write(lua_State *L)
-{
- lcrypt_spawn_t *lsp = (lcrypt_spawn_t*)luaL_checkudata(L, 1, "LSPAWN");
- size_t in_length = 0;
- const char* in = luaL_checklstring(L, 2, &in_length);
- if(lsp->fd < 0)
- {
- lua_pushstring(L, "closed");
- lua_error(L);
- return 0;
- }
- write(lsp->fd, in, in_length);
- if(errno != 0)
- {
- lua_pushstring(L, strerror(errno));
- return 1;
- }
- return 0;
-}
-
-static int lcrypt_spawn_index(lua_State *L)
-{
- (void)luaL_checkudata(L, 1, "LSPAWN");
- const char *index = luaL_checkstring(L, 2);
- if(strcmp(index, "read") == 0)
- lua_pushcfunction(L, lcrypt_spawn_read);
- else if(strcmp(index, "write") == 0)
- lua_pushcfunction(L, lcrypt_spawn_write);
- else if(strcmp(index, "close") == 0)
- lua_pushcfunction(L, lcrypt_spawn_close);
- else
- return 0;
- return 1;
-}
-
-static const luaL_Reg lcrypt_spawn_flib[] =
-{
- {"__gc", lcrypt_spawn_close},
- {NULL, NULL}
-};
-
-#endif
-
static const luaL_Reg lcryptlib[] =
{
{"tohex", lcrypt_tohex},
@@ -514,31 +249,15 @@ static const luaL_Reg lcryptlib[] =
{"base64_encode", lcrypt_base64_encode},
{"base64_decode", lcrypt_base64_decode},
{"xor", lcrypt_xor},
- {"sleep", lcrypt_sleep},
{"time", lcrypt_time},
{"random", lcrypt_random},
- {"tcsetattr", lcrypt_tcsetattr},
- {"flag_add", lcrypt_flag_add},
- {"flag_remove", lcrypt_flag_remove},
- #ifndef USE_NCIPHER
- {"spawn", lcrypt_spawn},
- #endif
{NULL, NULL}
};
-int luaopen_lcrypt(lua_State *L);
int luaopen_lcrypt(lua_State *L)
{
luaL_register(L, "lcrypt", lcryptlib);
- #ifndef USE_NCIPHER
- (void)luaL_newmetatable(L, "LSPAWN");
- lua_pushliteral(L, "__index");
- lua_pushcfunction(L, lcrypt_spawn_index);
- lua_rawset(L, -3);
- luaL_register(L, NULL, lcrypt_spawn_flib);
- #endif
-
lua_getglobal(L, "lcrypt");
lcrypt_start_ciphers(L);
@@ -546,60 +265,6 @@ int luaopen_lcrypt(lua_State *L)
lcrypt_start_math(L);
lcrypt_start_bits(L);
- lua_pushstring(L, "iflag");
- lua_newtable(L);
- ADD_CONSTANT(L, IGNBRK); ADD_CONSTANT(L, BRKINT); ADD_CONSTANT(L, IGNPAR); ADD_CONSTANT(L, PARMRK);
- ADD_CONSTANT(L, INPCK); ADD_CONSTANT(L, ISTRIP); ADD_CONSTANT(L, INLCR); ADD_CONSTANT(L, IGNCR);
- ADD_CONSTANT(L, ICRNL); ADD_CONSTANT(L, IXON); ADD_CONSTANT(L, IXANY); ADD_CONSTANT(L, IXOFF);
- lua_settable(L, -3);
-
- lua_pushstring(L, "oflag");
- lua_newtable(L);
- #ifdef OLCUC
- ADD_CONSTANT(L, OLCUC);
- #endif
- #ifdef OFILL
- ADD_CONSTANT(L, OFILL);
- #endif
- #ifdef OFDEL
- ADD_CONSTANT(L, OFDEL);
- #endif
- #ifdef NLDLY
- ADD_CONSTANT(L, NLDLY);
- #endif
- #ifdef CRDLY
- ADD_CONSTANT(L, CRDLY);
- #endif
- #ifdef TABDLY
- ADD_CONSTANT(L, TABDLY);
- #endif
- #ifdef BSDLY
- ADD_CONSTANT(L, BSDLY);
- #endif
- #ifdef VTDLY
- ADD_CONSTANT(L, VTDLY);
- #endif
- #ifdef FFDLY
- ADD_CONSTANT(L, FFDLY);
- #endif
- ADD_CONSTANT(L, OPOST); ADD_CONSTANT(L, ONLCR); ADD_CONSTANT(L, OCRNL); ADD_CONSTANT(L, ONOCR);
- ADD_CONSTANT(L, ONLRET);
- lua_settable(L, -3);
-
- lua_pushstring(L, "cflag");
- lua_newtable(L);
- ADD_CONSTANT(L, CS5); ADD_CONSTANT(L, CS6); ADD_CONSTANT(L, CS7); ADD_CONSTANT(L, CS8);
- ADD_CONSTANT(L, CSTOPB); ADD_CONSTANT(L, CREAD); ADD_CONSTANT(L, PARENB); ADD_CONSTANT(L, PARODD);
- ADD_CONSTANT(L, HUPCL); ADD_CONSTANT(L, CLOCAL);
- lua_settable(L, -3);
-
- lua_pushstring(L, "lflag");
- lua_newtable(L);
- ADD_CONSTANT(L, ISIG); ADD_CONSTANT(L, ICANON); ADD_CONSTANT(L, ECHO); ADD_CONSTANT(L, ECHOE);
- ADD_CONSTANT(L, ECHOK); ADD_CONSTANT(L, ECHONL); ADD_CONSTANT(L, NOFLSH); ADD_CONSTANT(L, TOSTOP);
- ADD_CONSTANT(L, IEXTEN);
- lua_settable(L, -3);
-
lua_pop(L, 1);
return 1;
}
diff --git a/lcrypt/lcrypt_math.c b/lcrypt/lcrypt_math.c
index 769a3a4..3189fd4 100644
--- a/lcrypt/lcrypt_math.c
+++ b/lcrypt/lcrypt_math.c
@@ -1,20 +1,12 @@
-#ifdef USE_NCIPHER
- typedef sbigint lcrypt_bigint;
-#else
- typedef void* lcrypt_bigint;
-#endif
+typedef void* lcrypt_bigint;
static lcrypt_bigint* lcrypt_new_bigint(lua_State *L)
{
lcrypt_bigint *bi = lua_newuserdata(L, sizeof(lcrypt_bigint));
luaL_getmetatable(L, "LCRYPT_BIGINT");
(void)lua_setmetatable(L, -2);
- #ifdef USE_NCIPHER
- sbigint_create(bi, NULL, 0);
- #else
- *bi = NULL;
- lcrypt_error(L, ltc_mp.init(bi), NULL);
- #endif
+ *bi = NULL;
+ lcrypt_error(L, ltc_mp.init(bi), NULL);
return bi;
}
@@ -23,11 +15,7 @@ static int lcrypt_bigint_add(lua_State *L)
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
lcrypt_bigint *bi = lcrypt_new_bigint(L);
- #ifdef USE_NCIPHER
- if(unlikely(sbigint_add(bi_a, bi_b, bi) != 0)) return 0;
- #else
- lcrypt_error(L, ltc_mp.add(*bi_a, *bi_b, *bi), NULL);
- #endif
+ lcrypt_error(L, ltc_mp.add(*bi_a, *bi_b, *bi), NULL);
return 1;
}
@@ -36,11 +24,7 @@ static int lcrypt_bigint_sub(lua_State *L)
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
lcrypt_bigint *bi = lcrypt_new_bigint(L);
- #ifdef USE_NCIPHER
- if(unlikely(sbigint_sub(bi_a, bi_b, bi) != 0)) return 0;
- #else
- lcrypt_error(L, ltc_mp.sub(*bi_a, *bi_b, *bi), NULL);
- #endif
+ lcrypt_error(L, ltc_mp.sub(*bi_a, *bi_b, *bi), NULL);
return 1;
}
@@ -49,11 +33,7 @@ static int lcrypt_bigint_mul(lua_State *L)
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
lcrypt_bigint *bi = lcrypt_new_bigint(L);
- #ifdef USE_NCIPHER
- if(unlikely(sbigint_mul(bi_a, bi_b, bi) != 0)) return 0;
- #else
- lcrypt_error(L, ltc_mp.mul(*bi_a, *bi_b, *bi), NULL);
- #endif
+ lcrypt_error(L, ltc_mp.mul(*bi_a, *bi_b, *bi), NULL);
return 1;
}
@@ -62,11 +42,7 @@ static int lcrypt_bigint_div(lua_State *L)
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
lcrypt_bigint *bi = lcrypt_new_bigint(L);
- #ifdef USE_NCIPHER
- if(unlikely(sbigint_divmod(bi_a, bi_b, bi, NULL) != 0)) return 0;
- #else
- lcrypt_error(L, ltc_mp.mpdiv(*bi_a, *bi_b, *bi, NULL), NULL);
- #endif
+ lcrypt_error(L, ltc_mp.mpdiv(*bi_a, *bi_b, *bi, NULL), NULL);
return 1;
}
@@ -76,11 +52,7 @@ static int lcrypt_bigint_divmod(lua_State *L)
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
lcrypt_bigint *bi_q = lcrypt_new_bigint(L);
lcrypt_bigint *bi_r = lcrypt_new_bigint(L);
- #ifdef USE_NCIPHER
- if(unlikely(sbigint_divmod(bi_a, bi_b, bi_q, bi_r) != 0)) return 0;
- #else
- lcrypt_error(L, ltc_mp.mpdiv(*bi_a, *bi_b, *bi_q, *bi_r), NULL);
- #endif
+ lcrypt_error(L, ltc_mp.mpdiv(*bi_a, *bi_b, *bi_q, *bi_r), NULL);
return 2;
}
@@ -89,11 +61,7 @@ static int lcrypt_bigint_mod(lua_State *L)
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
lcrypt_bigint *bi = lcrypt_new_bigint(L);
- #ifdef USE_NCIPHER
- if(unlikely(sbigint_divmod(bi_a, bi_b, NULL, bi) != 0)) return 0;
- #else
- lcrypt_error(L, ltc_mp.mpdiv(*bi_a, *bi_b, NULL, *bi), NULL);
- #endif
+ lcrypt_error(L, ltc_mp.mpdiv(*bi_a, *bi_b, NULL, *bi), NULL);
return 1;
}
@@ -102,11 +70,7 @@ static int lcrypt_bigint_invmod(lua_State *L)
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
lcrypt_bigint *bi = lcrypt_new_bigint(L);
- #ifdef USE_NCIPHER
- if(unlikely(sbigint_invmod(bi_a, bi_b, bi) != 0)) return 0;
- #else
- lcrypt_error(L, ltc_mp.invmod(*bi_a, *bi_b, *bi), NULL);
- #endif
+ lcrypt_error(L, ltc_mp.invmod(*bi_a, *bi_b, *bi), NULL);
return 1;
}
@@ -116,11 +80,7 @@ static int lcrypt_bigint_mulmod(lua_State *L)
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
lcrypt_bigint *bi_c = luaL_checkudata(L, 3, "LCRYPT_BIGINT");
lcrypt_bigint *bi = lcrypt_new_bigint(L);
- #ifdef USE_NCIPHER
- if(unlikely(sbigint_mulmod(bi_a, bi_b, bi_c, bi) != 0)) return 0;
- #else
- lcrypt_error(L, ltc_mp.mulmod(*bi_a, *bi_b, *bi_c, *bi), NULL);
- #endif
+ lcrypt_error(L, ltc_mp.mulmod(*bi_a, *bi_b, *bi_c, *bi), NULL);
return 1;
}
@@ -130,11 +90,7 @@ static int lcrypt_bigint_exptmod(lua_State *L)
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
lcrypt_bigint *bi_c = luaL_checkudata(L, 3, "LCRYPT_BIGINT");
lcrypt_bigint *bi = lcrypt_new_bigint(L);
- #ifdef USE_NCIPHER
- if(unlikely(sbigint_exptmod(bi_a, bi_b, bi_c, bi) != 0)) return 0;
- #else
- lcrypt_error(L, ltc_mp.exptmod(*bi_a, *bi_b, *bi_c, *bi), NULL);
- #endif
+ lcrypt_error(L, ltc_mp.exptmod(*bi_a, *bi_b, *bi_c, *bi), NULL);
return 1;
}
@@ -143,11 +99,7 @@ static int lcrypt_bigint_gcd(lua_State *L)
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
lcrypt_bigint *bi = lcrypt_new_bigint(L);
- #ifdef USE_NCIPHER
- if(unlikely(sbigint_gcd(bi_a, bi_b, bi) != 0)) return 0;
- #else
- lcrypt_error(L, ltc_mp.gcd(*bi_a, *bi_b, *bi), NULL);
- #endif
+ lcrypt_error(L, ltc_mp.gcd(*bi_a, *bi_b, *bi), NULL);
return 1;
}
@@ -156,11 +108,7 @@ static int lcrypt_bigint_lcm(lua_State *L)
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
lcrypt_bigint *bi = lcrypt_new_bigint(L);
- #ifdef USE_NCIPHER
- if(unlikely(sbigint_lcm(bi_a, bi_b, bi) != 0)) return 0;
- #else
- lcrypt_error(L, ltc_mp.lcm(*bi_a, *bi_b, *bi), NULL);
- #endif
+ lcrypt_error(L, ltc_mp.lcm(*bi_a, *bi_b, *bi), NULL);
return 1;
}
@@ -168,12 +116,7 @@ static int lcrypt_bigint_unm(lua_State *L)
{
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
lcrypt_bigint *bi = lcrypt_new_bigint(L);
- #ifdef USE_NCIPHER
- sbigint_copy(bi, bi_a);
- bi->sign = (bi_a->sign == SBIGINT_POSITIVE) ? SBIGINT_NEGATIVE : SBIGINT_POSITIVE;
- #else
- lcrypt_error(L, ltc_mp.neg(*bi_a, *bi), NULL);
- #endif
+ lcrypt_error(L, ltc_mp.neg(*bi_a, *bi), NULL);
return 1;
}
@@ -181,11 +124,7 @@ static int lcrypt_bigint_eq(lua_State *L)
{
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
- #ifdef USE_NCIPHER
- lua_pushboolean(L, (sbigint_cmp(bi_a, bi_b) == 0) ? 1 : 0);
- #else
- lua_pushboolean(L, (ltc_mp.compare(*bi_a, *bi_b) == LTC_MP_EQ) ? 1 : 0);
- #endif
+ lua_pushboolean(L, (ltc_mp.compare(*bi_a, *bi_b) == LTC_MP_EQ) ? 1 : 0);
return 1;
}
@@ -193,11 +132,7 @@ static int lcrypt_bigint_lt(lua_State *L)
{
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
- #ifdef USE_NCIPHER
- lua_pushboolean(L, (sbigint_cmp(bi_a, bi_b) < 0) ? 1 : 0);
- #else
- lua_pushboolean(L, (ltc_mp.compare(*bi_a, *bi_b) == LTC_MP_LT) ? 1 : 0);
- #endif
+ lua_pushboolean(L, (ltc_mp.compare(*bi_a, *bi_b) == LTC_MP_LT) ? 1 : 0);
return 1;
}
@@ -205,84 +140,46 @@ static int lcrypt_bigint_le(lua_State *L)
{
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
lcrypt_bigint *bi_b = luaL_checkudata(L, 2, "LCRYPT_BIGINT");
- #ifdef USE_NCIPHER
- lua_pushboolean(L, (sbigint_cmp(bi_a, bi_b) <= 0) ? 1 : 0);
- #else
- lua_pushboolean(L, (ltc_mp.compare(*bi_a, *bi_b) == LTC_MP_GT) ? 0 : 1);
- #endif
+ lua_pushboolean(L, (ltc_mp.compare(*bi_a, *bi_b) == LTC_MP_GT) ? 0 : 1);
return 1;
}
static int lcrypt_bigint_tostring(lua_State *L)
{
+#if 0
lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
- #ifdef USE_NCIPHER
- unsigned char out[4097];
- int length = sizeof(out);
- sbigint_tostring(bi_a, out + 1, &length);
- if(bi_a->sign == SBIGINT_NEGATIVE || (out[1] & 0x80) == 0x80)
- {
- out[0] = bi_a->sign;
- lua_pushlstring(L, (char*)out, length + 1);
- }
- else
- {
- lua_pushlstring(L, (char*)out + 1, length);
- }
- #else
- size_t out_length = (size_t)ltc_mp.unsigned_size(*bi_a) + 1;
- unsigned char *out = lcrypt_malloc(L, out_length);
- out[0] = (ltc_mp.compare_d(*bi_a, 0) == LTC_MP_LT) ? (unsigned char)0x80 : (unsigned char)0x00;
- lcrypt_error(L, ltc_mp.unsigned_write(*bi_a, out+1), out);
- if(out[0] == 0 && out[1] < 0x7f)
- lua_pushlstring(L, (char*)out+1, out_length-1);
- else
- lua_pushlstring(L, (char*)out, out_length);
- free(out);
- #endif
+ size_t out_length = (size_t)ltc_mp.unsigned_size(*bi_a) + 1;
+ unsigned char *out = lcrypt_malloc(L, out_length);
+ out[0] = (ltc_mp.compare_d(*bi_a, 0) == LTC_MP_LT) ? (unsigned char)0x80 : (unsigned char)0x00;
+ lcrypt_error(L, ltc_mp.unsigned_write(*bi_a, out+1), out);
+ if(out[0] == 0 && out[1] < 0x7f)
+ lua_pushlstring(L, (char*)out+1, out_length-1);
+ else
+ lua_pushlstring(L, (char*)out, out_length);
+ free(out);
return 1;
+#else
+ lcrypt_bigint *bi_a = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
+ char *out = lcrypt_malloc(L, ltc_mp.count_bits(*bi_a) / 3 + 3);
+ lcrypt_error(L, ltc_mp.write_radix(*bi_a, out, 10), NULL);
+ lua_pushstring(L, out);
+ free(out);
+ return 1;
+#endif
}
static int lcrypt_bigint_index(lua_State *L)
{
lcrypt_bigint *bi = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
const char *index = luaL_checkstring(L, 2);
- #ifdef USE_NCIPHER
- if(strcmp(index, "bits") == 0)
- {
- int len = bi->num.nbytes - 1;
- while(len > 0 && bi->num.bytes[len] == 0) len--;
- int bits = len * 8;
- if(bi->num.bytes[len] & 0x80) bits += 8;
- else if(bi->num.bytes[len] & 0x40) bits += 7;
- else if(bi->num.bytes[len] & 0x20) bits += 6;
- else if(bi->num.bytes[len] & 0x10) bits += 5;
- else if(bi->num.bytes[len] & 0x08) bits += 4;
- else if(bi->num.bytes[len] & 0x04) bits += 3;
- else if(bi->num.bytes[len] & 0x02) bits += 2;
- else bits++;
- lua_pushinteger(L, bits);
- return 1;
- }
- if(strcmp(index, "isprime") == 0)
- {
- sbigint c;
- int i, prime = 0;
- if(unlikely(sbigint_is_prime(bi, &c) != 0)) return 0;
- for(i = 0; i < c.num.nbytes; i++) if(c.num.bytes[i] != 0) { prime = 1; break; }
- lua_pushboolean(L, prime);
- return 1;
- }
- #else
- if(strcmp(index, "bits") == 0) { lua_pushinteger(L, ltc_mp.count_bits(*bi)); return 1; }
- if(strcmp(index, "isprime") == 0)
- {
- int ret = LTC_MP_NO;
- lcrypt_error(L, ltc_mp.isprime(*bi, &ret), NULL);
- lua_pushboolean(L, (ret == LTC_MP_YES) ? 1 : 0);
- return 1;
- }
- #endif
+ if(strcmp(index, "bits") == 0) { lua_pushinteger(L, ltc_mp.count_bits(*bi)); return 1; }
+ if(strcmp(index, "isprime") == 0)
+ {
+ int ret = LTC_MP_NO;
+ lcrypt_error(L, ltc_mp.isprime(*bi, &ret), NULL);
+ lua_pushboolean(L, (ret == LTC_MP_YES) ? 1 : 0);
+ return 1;
+ }
if(strcmp(index, "add") == 0) { lua_pushcfunction(L, lcrypt_bigint_add); return 1; }
if(strcmp(index, "sub") == 0) { lua_pushcfunction(L, lcrypt_bigint_sub); return 1; }
if(strcmp(index, "mul") == 0) { lua_pushcfunction(L, lcrypt_bigint_mul); return 1; }
@@ -298,77 +195,57 @@ static int lcrypt_bigint_index(lua_State *L)
static int lcrypt_bigint_gc(lua_State *L)
{
- #ifdef USE_NCIPHER
- (void)luaL_checkudata(L, 1, "LCRYPT_BIGINT");
- #else
- lcrypt_bigint *bi = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
- if(likely(*bi != NULL))
- {
- ltc_mp.deinit(*bi);
- *bi = NULL;
- }
- #endif
+ lcrypt_bigint *bi = luaL_checkudata(L, 1, "LCRYPT_BIGINT");
+ if(likely(*bi != NULL))
+ {
+ ltc_mp.deinit(*bi);
+ *bi = NULL;
+ }
return 0;
}
static int lcrypt_bigint_create(lua_State *L)
{
- #ifdef USE_NCIPHER
- if(lua_isnumber(L, 1) == 1)
+ if(lua_type(L, 1) == LUA_TNUMBER)
+ {
+ long n = luaL_checknumber(L, 1);
+ lcrypt_bigint *bi = lcrypt_new_bigint(L);
+ if(n < 0)
{
- long n = luaL_checknumber(L, 1);
- lcrypt_bigint *bi = lcrypt_new_bigint(L);
- if(n < 0)
- {
- bi->sign = SBIGINT_NEGATIVE;
- n = -n;
- }
- bi->num.nbytes = 0;
- while(n != 0 || bi->num.nbytes % 4 != 0)
+ void *temp;
+ int err = CRYPT_OK;
+ lcrypt_error(L, ltc_mp.init(&temp), NULL);
+ if((err = ltc_mp.set_int(temp, -n)) == CRYPT_OK)
{
- bi->num.bytes[bi->num.nbytes++] = n & 0xff;
- n >>= 8;
+ err = ltc_mp.neg(temp, *bi);
}
+ ltc_mp.deinit(temp);
+ lcrypt_error(L, err, NULL);
}
else
{
- size_t n_length = 0;
- unsigned char *n = (unsigned char*)luaL_optlstring(L, 1, "", &n_length);
- lcrypt_bigint *bi = lua_newuserdata(L, sizeof(lcrypt_bigint));
- luaL_getmetatable(L, "LCRYPT_BIGINT");
- (void)lua_setmetatable(L, -2);
- sbigint_create(bi, n, n_length);
+ lcrypt_error(L, ltc_mp.set_int(*bi, n), NULL);
}
- #else
- if(lua_isnumber(L, 1) == 1)
+ }
+ else
+ {
+ size_t n_length = 0;
+ unsigned char *n = (unsigned char*)luaL_optlstring(L, 1, "0", &n_length);
+ lcrypt_bigint *bi = lcrypt_new_bigint(L);
+ int radix = 10;
+ if(lua_isnumber(L, 2) == 1)
{
- long n = luaL_checknumber(L, 1);
- lcrypt_bigint *bi = lcrypt_new_bigint(L);
- if(n < 0)
- {
- void *temp;
- int err = CRYPT_OK;
- lcrypt_error(L, ltc_mp.init(&temp), NULL);
- if((err = ltc_mp.set_int(temp, -n)) == CRYPT_OK)
- {
- err = ltc_mp.neg(temp, *bi);
- }
- ltc_mp.deinit(temp);
- lcrypt_error(L, err, NULL);
- }
- else
- {
- lcrypt_error(L, ltc_mp.set_int(*bi, n), NULL);
- }
+ radix = luaL_checknumber(L, 2);
}
- else
+ if(radix <= 0)
{
- size_t n_length = 0;
- unsigned char *n = (unsigned char*)luaL_optlstring(L, 1, "", &n_length);
- lcrypt_bigint *bi = lcrypt_new_bigint(L);
lcrypt_error(L, ltc_mp.unsigned_read(*bi, n, n_length), NULL);
}
- #endif
+ else
+ {
+ lcrypt_error(L, ltc_mp.read_radix(*bi, n, radix), NULL);
+ }
+ }
return 1;
}
@@ -393,9 +270,7 @@ static void lcrypt_start_math(lua_State *L)
{
(void)luaL_newmetatable(L, "LCRYPT_BIGINT"); (void)luaL_register(L, NULL, lcrypt_bigint_flib); lua_pop(L, 1);
- #ifndef USE_NCIPHER
- ltc_mp = ltm_desc;
- #endif
+ ltc_mp = ltm_desc;
lua_pushstring(L, "bigint"); lua_pushcfunction(L, lcrypt_bigint_create); lua_settable(L, -3);
}
diff --git a/lcrypt/lcrypt_rsa2.c b/lcrypt/lcrypt_rsa2.c
new file mode 100644
index 0000000..69cdcc1
--- /dev/null
+++ b/lcrypt/lcrypt_rsa2.c
@@ -0,0 +1,115 @@
+const char * lcrypt_rsa = "\n"
+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"
+";\n"
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 17:19:48 +0000