Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/poly1305/poly1305_arm.c

Index: openssl/crypto/poly1305/poly1305_arm.c
diff --git a/openssl/crypto/poly1305/poly1305_arm.c b/openssl/crypto/poly1305/poly1305_arm.c
deleted file mode 100644
index c7d2991ea229e2357f69a08b587a719887b645e1..0000000000000000000000000000000000000000
--- a/openssl/crypto/poly1305/poly1305_arm.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/* ====================================================================
- * Copyright (c) 2011-2013 The OpenSSL Project.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- *    nor may "OpenSSL" appear in their names without prior written
- *    permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- */
-
-/* This implementation was taken from the public domain, neon2 version in
- * SUPERCOP by D. J. Bernstein and Peter Schwabe. */
-
-#include <stdint.h>
-#include <string.h>
-
-#include <openssl/poly1305.h>
-
-#if !defined(OPENSSL_NO_POLY1305)
-
-typedef struct {
-  uint32_t v[12]; /* for alignment; only using 10 */
-} fe1305x2;
-
-#define addmulmod openssl_poly1305_neon2_addmulmod
-#define blocks openssl_poly1305_neon2_blocks
-
-extern void addmulmod(fe1305x2 *r, const fe1305x2 *x, const fe1305x2 *y, const fe1305x2 *c);
-
-extern int blocks(fe1305x2 *h, const fe1305x2 *precomp, const unsigned char *in, unsigned int inlen);
-
-static void freeze(fe1305x2 *r)
-	{
-	int i;
-
-	uint32_t x0 = r->v[0];
-	uint32_t x1 = r->v[2];
-	uint32_t x2 = r->v[4];
-	uint32_t x3 = r->v[6];
-	uint32_t x4 = r->v[8];
-	uint32_t y0;
-	uint32_t y1;
-	uint32_t y2;
-	uint32_t y3;
-	uint32_t y4;
-	uint32_t swap;
-
-	for (i = 0;i < 3;++i)
-		{
-		x1 += x0 >> 26; x0 &= 0x3ffffff;
-		x2 += x1 >> 26; x1 &= 0x3ffffff;
-		x3 += x2 >> 26; x2 &= 0x3ffffff;
-		x4 += x3 >> 26; x3 &= 0x3ffffff;
-		x0 += 5*(x4 >> 26); x4 &= 0x3ffffff;
-		}
-
-	y0 = x0 + 5;
-	y1 = x1 + (y0 >> 26); y0 &= 0x3ffffff;
-	y2 = x2 + (y1 >> 26); y1 &= 0x3ffffff;
-	y3 = x3 + (y2 >> 26); y2 &= 0x3ffffff;
-	y4 = x4 + (y3 >> 26); y3 &= 0x3ffffff;
-	swap = -(y4 >> 26); y4 &= 0x3ffffff;
-
-	y0 ^= x0;
-	y1 ^= x1;
-	y2 ^= x2;
-	y3 ^= x3;
-	y4 ^= x4;
-
-	y0 &= swap;
-	y1 &= swap;
-	y2 &= swap;
-	y3 &= swap;
-	y4 &= swap;
-
-	y0 ^= x0;
-	y1 ^= x1;
-	y2 ^= x2;
-	y3 ^= x3;
-	y4 ^= x4;
-
-	r->v[0] = y0;
-	r->v[2] = y1;
-	r->v[4] = y2;
-	r->v[6] = y3;
-	r->v[8] = y4;
-	}
-
-static void fe1305x2_tobytearray(unsigned char *r, fe1305x2 *x)
-	{
-	uint32_t x0 = x->v[0];
-	uint32_t x1 = x->v[2];
-	uint32_t x2 = x->v[4];
-	uint32_t x3 = x->v[6];
-	uint32_t x4 = x->v[8];
-
-	x1 += x0 >> 26;
-	x0 &= 0x3ffffff;
-	x2 += x1 >> 26;
-	x1 &= 0x3ffffff;
-	x3 += x2 >> 26;
-	x2 &= 0x3ffffff;
-	x4 += x3 >> 26;
-	x3 &= 0x3ffffff;
-
-	*(uint32_t *) r = x0 + (x1 << 26);
-	*(uint32_t *) (r + 4) = (x1 >> 6) + (x2 << 20);
-	*(uint32_t *) (r + 8) = (x2 >> 12) + (x3 << 14);
-	*(uint32_t *) (r + 12) = (x3 >> 18) + (x4 << 8);
-	}
-
-/* load32 exists to avoid breaking strict aliasing rules in
- * fe1305x2_frombytearray. */
-static uint32_t load32(unsigned char *t)
-	{
-	uint32_t tmp;
-	memcpy(&tmp, t, sizeof(tmp));
-	return tmp;
-	}
-
-static void fe1305x2_frombytearray(fe1305x2 *r, const unsigned char *x, unsigned long long xlen)
-	{
-	int i;
-	unsigned char t[17];
-
-	for (i = 0; (i < 16) && (i < xlen); i++)
-		t[i] = x[i];
-	xlen -= i;
-	x += i;
-	t[i++] = 1;
-	for (; i<17; i++)
-		t[i] = 0;
-
-	r->v[0] = 0x3ffffff & load32(t);
-	r->v[2] = 0x3ffffff & (load32(t + 3) >> 2);
-	r->v[4] = 0x3ffffff & (load32(t + 6) >> 4);
-	r->v[6] = 0x3ffffff & (load32(t + 9) >> 6);
-	r->v[8] = load32(t + 13);
-
-	if (xlen)
-		{
-		for (i = 0; (i < 16) && (i < xlen); i++)
-			t[i] = x[i];
-		t[i++] = 1;
-		for (; i<17; i++)
-			t[i] = 0;
-
-		r->v[1] = 0x3ffffff & load32(t);
-		r->v[3] = 0x3ffffff & (load32(t + 3) >> 2);
-		r->v[5] = 0x3ffffff & (load32(t + 6) >> 4);
-		r->v[7] = 0x3ffffff & (load32(t + 9) >> 6);
-		r->v[9] = load32(t + 13);
-		}
-	else
-		r->v[1] = r->v[3] = r->v[5] = r->v[7] = r->v[9] = 0;
-	}
-
-static const fe1305x2 zero __attribute__ ((aligned (16)));
-
-struct poly1305_state_st {
-	unsigned char data[sizeof(fe1305x2[5]) + 128];
-	unsigned char buf[32];
-	unsigned int buf_used;
-	unsigned char key[16];
-};
-
-void CRYPTO_poly1305_init_neon(poly1305_state *state,
-			       const unsigned char key[32])
-	{
-	struct poly1305_state_st *st = (struct poly1305_state_st*) (state);
-	fe1305x2 *const r = (fe1305x2 *) (st->data + (15 & (-(int) st->data)));
-	fe1305x2 *const h = r + 1;
-	fe1305x2 *const c = h + 1;
-	fe1305x2 *const precomp = c + 1;
-	unsigned int j;
-
-	r->v[1] = r->v[0] = 0x3ffffff & *(uint32_t *) key;
-	r->v[3] = r->v[2] = 0x3ffff03 & ((*(uint32_t *) (key + 3)) >> 2);
-	r->v[5] = r->v[4] = 0x3ffc0ff & ((*(uint32_t *) (key + 6)) >> 4);
-	r->v[7] = r->v[6] = 0x3f03fff & ((*(uint32_t *) (key + 9)) >> 6);
-	r->v[9] = r->v[8] = 0x00fffff & ((*(uint32_t *) (key + 12)) >> 8);
-
-	for (j = 0; j < 10; j++)
-		h->v[j] = 0; /* XXX: should fast-forward a bit */
-
-	addmulmod(precomp,r,r,&zero);                 /* precompute r^2 */
-	addmulmod(precomp + 1,precomp,precomp,&zero); /* precompute r^4 */
-
-	memcpy(st->key, key + 16, 16);
-	st->buf_used = 0;
-	}
-
-void CRYPTO_poly1305_update_neon(poly1305_state *state, const unsigned char *in,
-				 size_t in_len)
-	{
-	struct poly1305_state_st *st = (struct poly1305_state_st*) (state);
-	fe1305x2 *const r = (fe1305x2 *) (st->data + (15 & (-(int) st->data)));
-	fe1305x2 *const h = r + 1;
-	fe1305x2 *const c = h + 1;
-	fe1305x2 *const precomp = c + 1;
-	unsigned int i;
-
-	if (st->buf_used)
-		{
-		unsigned int todo = 32 - st->buf_used;
-		if (todo > in_len)
-			todo = in_len;
-		for (i = 0; i < todo; i++)
-			st->buf[st->buf_used + i] = in[i];
-		st->buf_used += todo;
-		in_len -= todo;
-		in += todo;
-
-		if (st->buf_used == sizeof(st->buf) && in_len)
-			{
-			addmulmod(h,h,precomp,&zero);
-			fe1305x2_frombytearray(c, st->buf, sizeof(st->buf));
-			for (i = 0; i < 10; i++)
-				h->v[i] += c->v[i];
-			st->buf_used = 0;
-			}
-		}
-
-	while (in_len > 32)
-		{
-		unsigned int tlen = 1048576;
-		if (in_len < tlen)
-			tlen = in_len;
-		tlen -= blocks(h, precomp, in, tlen);
-		in_len -= tlen;
-		in += tlen;
-		}
-
-	if (in_len)
-		{
-		for (i = 0; i < in_len; i++)
-			st->buf[i] = in[i];
-		st->buf_used = in_len;
-		}
-	}
-
-void CRYPTO_poly1305_finish_neon(poly1305_state* state, unsigned char mac[16])
-	{
-	struct poly1305_state_st *st = (struct poly1305_state_st*) (state);
-	fe1305x2 *const r = (fe1305x2 *) (st->data + (15 & (-(int) st->data)));
-	fe1305x2 *const h = r + 1;
-	fe1305x2 *const c = h + 1;
-	fe1305x2 *const precomp = c + 1;
-
-	addmulmod(h,h,precomp,&zero);
-
-	if (st->buf_used > 16)
-		{
-		fe1305x2_frombytearray(c, st->buf, st->buf_used);
-		precomp->v[1] = r->v[1];
-		precomp->v[3] = r->v[3];
-		precomp->v[5] = r->v[5];
-		precomp->v[7] = r->v[7];
-		precomp->v[9] = r->v[9];
-		addmulmod(h,h,precomp,c);
-		}
-	else if (st->buf_used > 0)
-		{
-		fe1305x2_frombytearray(c, st->buf, st->buf_used);
-		r->v[1] = 1;
-		r->v[3] = 0;
-		r->v[5] = 0;
-		r->v[7] = 0;
-		r->v[9] = 0;
-		addmulmod(h,h,r,c);
-		}
-
-	h->v[0] += h->v[1];
-	h->v[2] += h->v[3];
-	h->v[4] += h->v[5];
-	h->v[6] += h->v[7];
-	h->v[8] += h->v[9];
-	freeze(h);
-
-	fe1305x2_frombytearray(c, st->key, 16);
-	c->v[8] ^= (1 << 24);
-
-	h->v[0] += c->v[0];
-	h->v[2] += c->v[2];
-	h->v[4] += c->v[4];
-	h->v[6] += c->v[6];
-	h->v[8] += c->v[8];
-	fe1305x2_tobytearray(mac, h);
-	}
-
-#endif  /* !OPENSSL_NO_POLY1305 */