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authorUros Majstorovic <majstor@majstor.org>2022-02-02 06:40:10 +0100
committerUros Majstorovic <majstor@majstor.org>2022-02-02 06:40:10 +0100
commit64b55e7e1236121ea4197d9a37cfec43b196cfe8 (patch)
treeeb16f4a2d3eae3d9485eccbd923812a56b627979 /ecp/src/crypto/arc4random
parenta4401c99c2a54ba9a964317cbff915d40d16e470 (diff)
moved ecp, platform -> src
Diffstat (limited to 'ecp/src/crypto/arc4random')
-rwxr-xr-xecp/src/crypto/arc4random/Makefile14
-rwxr-xr-xecp/src/crypto/arc4random/arc4random.c254
-rwxr-xr-xecp/src/crypto/arc4random/arc4random.h78
-rwxr-xr-xecp/src/crypto/arc4random/chacha_private.h223
4 files changed, 0 insertions, 569 deletions
diff --git a/ecp/src/crypto/arc4random/Makefile b/ecp/src/crypto/arc4random/Makefile
deleted file mode 100755
index 387bca1..0000000
--- a/ecp/src/crypto/arc4random/Makefile
+++ /dev/null
@@ -1,14 +0,0 @@
-include ../../Makefile.platform
-CFLAGS += $(PIC)
-
-obj = arc4random.o
-
-
-all: $(obj)
-dep: all
-
-%.o: %.c
- $(CC) $(CFLAGS) -c $<
-
-clean:
- rm -f *.o *.a
diff --git a/ecp/src/crypto/arc4random/arc4random.c b/ecp/src/crypto/arc4random/arc4random.c
deleted file mode 100755
index 23ce9b7..0000000
--- a/ecp/src/crypto/arc4random/arc4random.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
- * Copyright (c) 1996, David Mazieres <dm@uun.org>
- * Copyright (c) 2008, Damien Miller <djm@openbsd.org>
- * Copyright (c) 2013, Markus Friedl <markus@openbsd.org>
- * Copyright (c) 2014, Theo de Raadt <deraadt@openbsd.org>
- * Copyright (c) 2015, Sudhi Herle <sudhi@herle.net>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-
-/*
- * ChaCha based random number generator from OpenBSD.
- *
- * Made fully portable and thread-safe by Sudhi Herle.
- */
-
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-
-#define ARC4R_KEYSZ 32
-#define ARC4R_IVSZ 8
-#define ARC4R_BLOCKSZ 64
-#define ARC4R_RSBUFSZ (16*ARC4R_BLOCKSZ)
-
-typedef struct
-{
- uint32_t input[16]; /* could be compressed */
-} chacha_ctx;
-
-struct rand_state
-{
- size_t rs_have; /* valid bytes at end of rs_buf */
- size_t rs_count; /* bytes till reseed */
- chacha_ctx rs_chacha; /* chacha context for random keystream */
- u_char rs_buf[ARC4R_RSBUFSZ]; /* keystream blocks */
-};
-typedef struct rand_state rand_state;
-
-
-/* kernel entropy */
-static int (*getentropy) (void* buf, size_t n);
-
-
-#define KEYSTREAM_ONLY
-#include "chacha_private.h"
-
-#define minimum(a, b) ((a) < (b) ? (a) : (b))
-
-#include "arc4random.h"
-
-
-static inline void
-_rs_init(rand_state* st, u8 *buf, size_t n)
-{
- chacha_keysetup(&st->rs_chacha, buf, ARC4R_KEYSZ * 8, 0);
- chacha_ivsetup(&st->rs_chacha, buf + ARC4R_KEYSZ);
-}
-
-
-
-static inline void
-_rs_rekey(rand_state* st, u8 *dat, size_t datlen)
-{
- /* fill rs_buf with the keystream */
- chacha_encrypt_bytes(&st->rs_chacha, st->rs_buf, st->rs_buf, sizeof st->rs_buf);
-
- /* mix in optional user provided data */
- if (dat) {
- size_t i, m;
-
- m = minimum(datlen, ARC4R_KEYSZ + ARC4R_IVSZ);
- for (i = 0; i < m; i++)
- st->rs_buf[i] ^= dat[i];
-
- memset(dat, 0, datlen);
- }
-
- /* immediately reinit for backtracking resistance */
- _rs_init(st, st->rs_buf, ARC4R_KEYSZ + ARC4R_IVSZ);
- memset(st->rs_buf, 0, ARC4R_KEYSZ + ARC4R_IVSZ);
- st->rs_have = (sizeof st->rs_buf) - ARC4R_KEYSZ - ARC4R_IVSZ;
-}
-
-
-static void
-_rs_stir(rand_state* st)
-{
- u8 rnd[ARC4R_KEYSZ + ARC4R_IVSZ];
-
-
- getentropy(rnd, sizeof rnd);
- _rs_rekey(st, rnd, sizeof(rnd));
-
- /* invalidate rs_buf */
- st->rs_have = 0;
- memset(st->rs_buf, 0, sizeof st->rs_buf);
-
- st->rs_count = 1600000;
-}
-
-
-static inline void
-_rs_stir_if_needed(rand_state* st, size_t len)
-{
- if (st->rs_count <= len)
- _rs_stir(st);
-
- st->rs_count -= len;
-}
-
-
-static inline void
-_rs_random_buf(rand_state* rs, void *_buf, size_t n)
-{
- u8 *buf = (u8 *)_buf;
- u8 *keystream;
- size_t m;
-
- _rs_stir_if_needed(rs, n);
- while (n > 0) {
- if (rs->rs_have > 0) {
- m = minimum(n, rs->rs_have);
- keystream = rs->rs_buf + sizeof(rs->rs_buf) - rs->rs_have;
- memcpy(buf, keystream, m);
- memset(keystream, 0, m);
- buf += m;
- n -= m;
- rs->rs_have -= m;
- } else
- _rs_rekey(rs, NULL, 0);
- }
-}
-
-static inline uint32_t
-_rs_random_u32(rand_state* rs)
-{
- u8 *keystream;
- uint32_t val;
-
- _rs_stir_if_needed(rs, sizeof(val));
- if (rs->rs_have < sizeof(val))
- _rs_rekey(rs, NULL, 0);
- keystream = rs->rs_buf + sizeof(rs->rs_buf) - rs->rs_have;
- memcpy(&val, keystream, sizeof(val));
- memset(keystream, 0, sizeof(val));
- rs->rs_have -= sizeof(val);
-
- return val;
-}
-
-
-/*
- * Use gcc extension to declare a thread-local variable.
- *
- * On most systems (including x86_64), thread-local access is
- * essentially free for non .so use cases.
- *
- */
-static rand_state st = { .rs_count = 0 };
-static inline rand_state*
-sget()
-{
- rand_state* s = &st;
-
- if (s->rs_count == 0)
- _rs_stir(s);
- return s;
-}
-
-
-
-/*
- * Public API.
- */
-
-
-void
-arc4random_init(int (*f) (void*, size_t))
-{
- getentropy = f;
-}
-
-
-uint32_t
-arc4random()
-{
- rand_state* z = sget();
-
- return _rs_random_u32(z);
-}
-
-
-void
-arc4random_buf(void* b, size_t n)
-{
- rand_state* z = sget();
-
- _rs_random_buf(z, b, n);
-}
-
-
-
-
-/*
- * Calculate a uniformly distributed random number less than upper_bound
- * avoiding "modulo bias".
- *
- * Uniformity is achieved by generating new random numbers until the one
- * returned is outside the range [0, 2**32 % upper_bound). This
- * guarantees the selected random number will be inside
- * [2**32 % upper_bound, 2**32) which maps back to [0, upper_bound)
- * after reduction modulo upper_bound.
- */
-uint32_t
-arc4random_uniform(uint32_t upper_bound)
-{
- rand_state* z = sget();
- uint32_t r, min;
-
- if (upper_bound < 2)
- return 0;
-
- /* 2**32 % x == (2**32 - x) % x */
- min = -upper_bound % upper_bound;
-
- /*
- * This could theoretically loop forever but each retry has
- * p > 0.5 (worst case, usually far better) of selecting a
- * number inside the range we need, so it should rarely need
- * to re-roll.
- */
- for (;;) {
- r = _rs_random_u32(z);
- if (r >= min)
- break;
- }
-
- return r % upper_bound;
-}
-
-/* EOF */
diff --git a/ecp/src/crypto/arc4random/arc4random.h b/ecp/src/crypto/arc4random/arc4random.h
deleted file mode 100755
index e281a89..0000000
--- a/ecp/src/crypto/arc4random/arc4random.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Copyright (c) 1996, David Mazieres <dm@uun.org>
- * Copyright (c) 2008, Damien Miller <djm@openbsd.org>
- * Copyright (c) 2013, Markus Friedl <markus@openbsd.org>
- * Copyright (c) 2014, Theo de Raadt <deraadt@openbsd.org>
- * Copyright (c) 2015, Sudhi Herle <sudhi@herle.net>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef ___ARC4RANDOM_H_5000666_1462841354__
-#define ___ARC4RANDOM_H_5000666_1462841354__ 1
-
- /* Provide C linkage for symbols declared here .. */
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-#include <stdint.h>
-#include <sys/types.h>
-
-/*
- * On OpenBSD - we should NOT use the same symbol names. OpenBSD
- * libc defines these, and the rest of libc uses this - from dynamic
- * loading, to malloc() to printf() etc.
- *
- * For some fun, don't redefine the names - and see what happens :-)
- */
-#ifdef __OpenBSD__
-
-#define arc4random mt_arc4random
-#define arc4random_uniform mt_arc4random_uniform
-#define arc4random_buf mt_arc4random_buf
-
-#endif /* __OpenBSD__ */
-
-
-/*
- * Initialize generator with getentropy
- */
-extern void arc4random_init(int (*) (void*, size_t));
-
-
-/*
- * Generate and return a random 32-bit number
- */
-extern uint32_t arc4random(void);
-
-
-/*
- * Generate and return a uniformly random 32-bit quantity with an
- * upper bound of 'upper_bound'
- */
-extern uint32_t arc4random_uniform(uint32_t upper_bound);
-
-
-/*
- * Generate 'n' random bytes and put them in 'buf'.
- */
-extern void arc4random_buf(void* buf, size_t n);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* ! ___ARC4RANDOM_H_5000666_1462841354__ */
-
-/* EOF */
diff --git a/ecp/src/crypto/arc4random/chacha_private.h b/ecp/src/crypto/arc4random/chacha_private.h
deleted file mode 100755
index 05ce200..0000000
--- a/ecp/src/crypto/arc4random/chacha_private.h
+++ /dev/null
@@ -1,223 +0,0 @@
-/*
- * chacha-merged.c version 20080118
- * D. J. Bernstein
- * Public domain.
- */
-
-/* $OpenBSD$ */
-
-#include <stdint.h>
-
-
-typedef unsigned char u8;
-typedef uint32_t u32;
-
-
-#define U8C(v) (v##U)
-#define U32C(v) (v##U)
-
-#define U8V(v) ((u8)(v) & U8C(0xFF))
-#define U32V(v) ((u32)(v) & U32C(0xFFFFFFFF))
-
-#define ROTL32(v, n) \
- (U32V((v) << (n)) | ((v) >> (32 - (n))))
-
-#define U8TO32_LITTLE(p) \
- (((u32)((p)[0]) ) | \
- ((u32)((p)[1]) << 8) | \
- ((u32)((p)[2]) << 16) | \
- ((u32)((p)[3]) << 24))
-
-#define U32TO8_LITTLE(p, v) \
- do { \
- (p)[0] = U8V((v) ); \
- (p)[1] = U8V((v) >> 8); \
- (p)[2] = U8V((v) >> 16); \
- (p)[3] = U8V((v) >> 24); \
- } while (0)
-
-#define ROTATE(v,c) (ROTL32(v,c))
-#define XOR(v,w) ((v) ^ (w))
-#define PLUS(v,w) (U32V((v) + (w)))
-#define PLUSONE(v) (PLUS((v),1))
-
-#define QUARTERROUND(a,b,c,d) \
- a = PLUS(a,b); d = ROTATE(XOR(d,a),16); \
- c = PLUS(c,d); b = ROTATE(XOR(b,c),12); \
- a = PLUS(a,b); d = ROTATE(XOR(d,a), 8); \
- c = PLUS(c,d); b = ROTATE(XOR(b,c), 7);
-
-static const char sigma[16] = "expand 32-byte k";
-static const char tau[16] = "expand 16-byte k";
-
-static void
-chacha_keysetup(chacha_ctx *x,const u8 *k,u32 kbits,u32 ivbits)
-{
- const char *constants;
-
- (void)ivbits;
-
- x->input[4] = U8TO32_LITTLE(k + 0);
- x->input[5] = U8TO32_LITTLE(k + 4);
- x->input[6] = U8TO32_LITTLE(k + 8);
- x->input[7] = U8TO32_LITTLE(k + 12);
- if (kbits == 256) { /* recommended */
- k += 16;
- constants = sigma;
- } else { /* kbits == 128 */
- constants = tau;
- }
- x->input[8] = U8TO32_LITTLE(k + 0);
- x->input[9] = U8TO32_LITTLE(k + 4);
- x->input[10] = U8TO32_LITTLE(k + 8);
- x->input[11] = U8TO32_LITTLE(k + 12);
- x->input[0] = U8TO32_LITTLE(constants + 0);
- x->input[1] = U8TO32_LITTLE(constants + 4);
- x->input[2] = U8TO32_LITTLE(constants + 8);
- x->input[3] = U8TO32_LITTLE(constants + 12);
-}
-
-static void
-chacha_ivsetup(chacha_ctx *x,const u8 *iv)
-{
- x->input[12] = 0;
- x->input[13] = 0;
- x->input[14] = U8TO32_LITTLE(iv + 0);
- x->input[15] = U8TO32_LITTLE(iv + 4);
-}
-
-static void
-chacha_encrypt_bytes(chacha_ctx *x,const u8 *m,u8 *c,u32 bytes)
-{
- u32 x0, x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15;
- u32 j0, j1, j2, j3, j4, j5, j6, j7, j8, j9, j10, j11, j12, j13, j14, j15;
- u8 *ctarget = NULL;
- u8 tmp[64];
- u_int i;
-
- if (!bytes) return;
-
- j0 = x->input[0];
- j1 = x->input[1];
- j2 = x->input[2];
- j3 = x->input[3];
- j4 = x->input[4];
- j5 = x->input[5];
- j6 = x->input[6];
- j7 = x->input[7];
- j8 = x->input[8];
- j9 = x->input[9];
- j10 = x->input[10];
- j11 = x->input[11];
- j12 = x->input[12];
- j13 = x->input[13];
- j14 = x->input[14];
- j15 = x->input[15];
-
- for (;;) {
- if (bytes < 64) {
- for (i = 0;i < bytes;++i) tmp[i] = m[i];
- m = tmp;
- ctarget = c;
- c = tmp;
- }
- x0 = j0;
- x1 = j1;
- x2 = j2;
- x3 = j3;
- x4 = j4;
- x5 = j5;
- x6 = j6;
- x7 = j7;
- x8 = j8;
- x9 = j9;
- x10 = j10;
- x11 = j11;
- x12 = j12;
- x13 = j13;
- x14 = j14;
- x15 = j15;
- for (i = 20;i > 0;i -= 2) {
- QUARTERROUND( x0, x4, x8,x12)
- QUARTERROUND( x1, x5, x9,x13)
- QUARTERROUND( x2, x6,x10,x14)
- QUARTERROUND( x3, x7,x11,x15)
- QUARTERROUND( x0, x5,x10,x15)
- QUARTERROUND( x1, x6,x11,x12)
- QUARTERROUND( x2, x7, x8,x13)
- QUARTERROUND( x3, x4, x9,x14)
- }
- x0 = PLUS(x0,j0);
- x1 = PLUS(x1,j1);
- x2 = PLUS(x2,j2);
- x3 = PLUS(x3,j3);
- x4 = PLUS(x4,j4);
- x5 = PLUS(x5,j5);
- x6 = PLUS(x6,j6);
- x7 = PLUS(x7,j7);
- x8 = PLUS(x8,j8);
- x9 = PLUS(x9,j9);
- x10 = PLUS(x10,j10);
- x11 = PLUS(x11,j11);
- x12 = PLUS(x12,j12);
- x13 = PLUS(x13,j13);
- x14 = PLUS(x14,j14);
- x15 = PLUS(x15,j15);
-
-#ifndef KEYSTREAM_ONLY
- x0 = XOR(x0,U8TO32_LITTLE(m + 0));
- x1 = XOR(x1,U8TO32_LITTLE(m + 4));
- x2 = XOR(x2,U8TO32_LITTLE(m + 8));
- x3 = XOR(x3,U8TO32_LITTLE(m + 12));
- x4 = XOR(x4,U8TO32_LITTLE(m + 16));
- x5 = XOR(x5,U8TO32_LITTLE(m + 20));
- x6 = XOR(x6,U8TO32_LITTLE(m + 24));
- x7 = XOR(x7,U8TO32_LITTLE(m + 28));
- x8 = XOR(x8,U8TO32_LITTLE(m + 32));
- x9 = XOR(x9,U8TO32_LITTLE(m + 36));
- x10 = XOR(x10,U8TO32_LITTLE(m + 40));
- x11 = XOR(x11,U8TO32_LITTLE(m + 44));
- x12 = XOR(x12,U8TO32_LITTLE(m + 48));
- x13 = XOR(x13,U8TO32_LITTLE(m + 52));
- x14 = XOR(x14,U8TO32_LITTLE(m + 56));
- x15 = XOR(x15,U8TO32_LITTLE(m + 60));
-#endif
-
- j12 = PLUSONE(j12);
- if (!j12) {
- j13 = PLUSONE(j13);
- /* stopping at 2^70 bytes per nonce is user's responsibility */
- }
-
- U32TO8_LITTLE(c + 0,x0);
- U32TO8_LITTLE(c + 4,x1);
- U32TO8_LITTLE(c + 8,x2);
- U32TO8_LITTLE(c + 12,x3);
- U32TO8_LITTLE(c + 16,x4);
- U32TO8_LITTLE(c + 20,x5);
- U32TO8_LITTLE(c + 24,x6);
- U32TO8_LITTLE(c + 28,x7);
- U32TO8_LITTLE(c + 32,x8);
- U32TO8_LITTLE(c + 36,x9);
- U32TO8_LITTLE(c + 40,x10);
- U32TO8_LITTLE(c + 44,x11);
- U32TO8_LITTLE(c + 48,x12);
- U32TO8_LITTLE(c + 52,x13);
- U32TO8_LITTLE(c + 56,x14);
- U32TO8_LITTLE(c + 60,x15);
-
- if (bytes <= 64) {
- if (bytes < 64) {
- for (i = 0;i < bytes;++i) ctarget[i] = c[i];
- }
- x->input[12] = j12;
- x->input[13] = j13;
- return;
- }
- bytes -= 64;
- c += 64;
-#ifndef KEYSTREAM_ONLY
- m += 64;
-#endif
- }
-}