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-rw-r--r--src/lib/libcrypto/crypto/Makefile7
-rw-r--r--src/lib/libcrypto/poly1305/poly1305-donna.c263
-rw-r--r--src/lib/libcrypto/poly1305/poly1305.c37
-rw-r--r--src/lib/libcrypto/poly1305/poly1305.h48
4 files changed, 354 insertions, 1 deletions
diff --git a/src/lib/libcrypto/crypto/Makefile b/src/lib/libcrypto/crypto/Makefile
index ce04ac9e61..6d9eac1383 100644
--- a/src/lib/libcrypto/crypto/Makefile
+++ b/src/lib/libcrypto/crypto/Makefile
@@ -1,4 +1,4 @@
1# $OpenBSD: Makefile,v 1.32 2014/05/12 19:14:14 miod Exp $ 1# $OpenBSD: Makefile,v 1.33 2014/05/14 14:46:35 jsing Exp $
2 2
3LIB= crypto 3LIB= crypto
4 4
@@ -198,6 +198,9 @@ SRCS+= p12_utl.c p12_npas.c pk12err.c p12_p8d.c p12_p8e.c
198SRCS+= pk7_asn1.c pk7_lib.c pkcs7err.c pk7_doit.c pk7_smime.c pk7_attr.c 198SRCS+= pk7_asn1.c pk7_lib.c pkcs7err.c pk7_doit.c pk7_smime.c pk7_attr.c
199SRCS+= pk7_mime.c bio_pk7.c 199SRCS+= pk7_mime.c bio_pk7.c
200 200
201# poly1305/
202SRCS+= poly1305.c
203
201# rand/ 204# rand/
202SRCS+= randfile.c rand_lib.c rand_err.c 205SRCS+= randfile.c rand_lib.c rand_err.c
203 206
@@ -301,6 +304,7 @@ SRCS+= v3_asid.c v3_addr.c
301 ${LCRYPTO_SRC}/perlasm \ 304 ${LCRYPTO_SRC}/perlasm \
302 ${LCRYPTO_SRC}/pkcs12 \ 305 ${LCRYPTO_SRC}/pkcs12 \
303 ${LCRYPTO_SRC}/pkcs7 \ 306 ${LCRYPTO_SRC}/pkcs7 \
307 ${LCRYPTO_SRC}/poly1305 \
304 ${LCRYPTO_SRC}/rand \ 308 ${LCRYPTO_SRC}/rand \
305 ${LCRYPTO_SRC}/rc2 \ 309 ${LCRYPTO_SRC}/rc2 \
306 ${LCRYPTO_SRC}/rc4 \ 310 ${LCRYPTO_SRC}/rc4 \
@@ -363,6 +367,7 @@ HDRS=\
363 crypto/pem/pem2.h \ 367 crypto/pem/pem2.h \
364 crypto/pkcs12/pkcs12.h \ 368 crypto/pkcs12/pkcs12.h \
365 crypto/pkcs7/pkcs7.h \ 369 crypto/pkcs7/pkcs7.h \
370 crypto/poly1305/poly1305.h \
366 crypto/rand/rand.h \ 371 crypto/rand/rand.h \
367 crypto/rc2/rc2.h \ 372 crypto/rc2/rc2.h \
368 crypto/rc4/rc4.h \ 373 crypto/rc4/rc4.h \
diff --git a/src/lib/libcrypto/poly1305/poly1305-donna.c b/src/lib/libcrypto/poly1305/poly1305-donna.c
new file mode 100644
index 0000000000..642a30b376
--- /dev/null
+++ b/src/lib/libcrypto/poly1305/poly1305-donna.c
@@ -0,0 +1,263 @@
1/*
2 * Public Domain poly1305 from Andrew Moon
3 * Based on poly1305-donna.c, poly1305-donna-32.h and poly1305-donna.h from:
4 * https://github.com/floodyberry/poly1305-donna
5 */
6
7#include <stddef.h>
8
9static inline void poly1305_init(poly1305_context *ctx,
10 const unsigned char key[32]);
11static inline void poly1305_update(poly1305_context *ctx,
12 const unsigned char *m, size_t bytes);
13static inline void poly1305_finish(poly1305_context *ctx,
14 unsigned char mac[16]);
15
16/*
17 * poly1305 implementation using 32 bit * 32 bit = 64 bit multiplication
18 * and 64 bit addition.
19 */
20
21#define poly1305_block_size 16
22
23/* 17 + sizeof(size_t) + 14*sizeof(unsigned long) */
24typedef struct poly1305_state_internal_t {
25 unsigned long r[5];
26 unsigned long h[5];
27 unsigned long pad[4];
28 size_t leftover;
29 unsigned char buffer[poly1305_block_size];
30 unsigned char final;
31} poly1305_state_internal_t;
32
33/* interpret four 8 bit unsigned integers as a 32 bit unsigned integer in little endian */
34static unsigned long
35U8TO32(const unsigned char *p) {
36 return
37 (((unsigned long)(p[0] & 0xff) ) |
38 ((unsigned long)(p[1] & 0xff) << 8) |
39 ((unsigned long)(p[2] & 0xff) << 16) |
40 ((unsigned long)(p[3] & 0xff) << 24));
41}
42
43/* store a 32 bit unsigned integer as four 8 bit unsigned integers in little endian */
44static void
45U32TO8(unsigned char *p, unsigned long v) {
46 p[0] = (v ) & 0xff;
47 p[1] = (v >> 8) & 0xff;
48 p[2] = (v >> 16) & 0xff;
49 p[3] = (v >> 24) & 0xff;
50}
51
52static inline void
53poly1305_init(poly1305_context *ctx, const unsigned char key[32]) {
54 poly1305_state_internal_t *st = (poly1305_state_internal_t *)ctx;
55
56 /* r &= 0xffffffc0ffffffc0ffffffc0fffffff */
57 st->r[0] = (U8TO32(&key[ 0]) ) & 0x3ffffff;
58 st->r[1] = (U8TO32(&key[ 3]) >> 2) & 0x3ffff03;
59 st->r[2] = (U8TO32(&key[ 6]) >> 4) & 0x3ffc0ff;
60 st->r[3] = (U8TO32(&key[ 9]) >> 6) & 0x3f03fff;
61 st->r[4] = (U8TO32(&key[12]) >> 8) & 0x00fffff;
62
63 /* h = 0 */
64 st->h[0] = 0;
65 st->h[1] = 0;
66 st->h[2] = 0;
67 st->h[3] = 0;
68 st->h[4] = 0;
69
70 /* save pad for later */
71 st->pad[0] = U8TO32(&key[16]);
72 st->pad[1] = U8TO32(&key[20]);
73 st->pad[2] = U8TO32(&key[24]);
74 st->pad[3] = U8TO32(&key[28]);
75
76 st->leftover = 0;
77 st->final = 0;
78}
79
80static void
81poly1305_blocks(poly1305_state_internal_t *st, const unsigned char *m, size_t bytes) {
82 const unsigned long hibit = (st->final) ? 0 : (1 << 24); /* 1 << 128 */
83 unsigned long r0,r1,r2,r3,r4;
84 unsigned long s1,s2,s3,s4;
85 unsigned long h0,h1,h2,h3,h4;
86 unsigned long long d0,d1,d2,d3,d4;
87 unsigned long c;
88
89 r0 = st->r[0];
90 r1 = st->r[1];
91 r2 = st->r[2];
92 r3 = st->r[3];
93 r4 = st->r[4];
94
95 s1 = r1 * 5;
96 s2 = r2 * 5;
97 s3 = r3 * 5;
98 s4 = r4 * 5;
99
100 h0 = st->h[0];
101 h1 = st->h[1];
102 h2 = st->h[2];
103 h3 = st->h[3];
104 h4 = st->h[4];
105
106 while (bytes >= poly1305_block_size) {
107 /* h += m[i] */
108 h0 += (U8TO32(m+ 0) ) & 0x3ffffff;
109 h1 += (U8TO32(m+ 3) >> 2) & 0x3ffffff;
110 h2 += (U8TO32(m+ 6) >> 4) & 0x3ffffff;
111 h3 += (U8TO32(m+ 9) >> 6) & 0x3ffffff;
112 h4 += (U8TO32(m+12) >> 8) | hibit;
113
114 /* h *= r */
115 d0 = ((unsigned long long)h0 * r0) + ((unsigned long long)h1 * s4) + ((unsigned long long)h2 * s3) + ((unsigned long long)h3 * s2) + ((unsigned long long)h4 * s1);
116 d1 = ((unsigned long long)h0 * r1) + ((unsigned long long)h1 * r0) + ((unsigned long long)h2 * s4) + ((unsigned long long)h3 * s3) + ((unsigned long long)h4 * s2);
117 d2 = ((unsigned long long)h0 * r2) + ((unsigned long long)h1 * r1) + ((unsigned long long)h2 * r0) + ((unsigned long long)h3 * s4) + ((unsigned long long)h4 * s3);
118 d3 = ((unsigned long long)h0 * r3) + ((unsigned long long)h1 * r2) + ((unsigned long long)h2 * r1) + ((unsigned long long)h3 * r0) + ((unsigned long long)h4 * s4);
119 d4 = ((unsigned long long)h0 * r4) + ((unsigned long long)h1 * r3) + ((unsigned long long)h2 * r2) + ((unsigned long long)h3 * r1) + ((unsigned long long)h4 * r0);
120
121 /* (partial) h %= p */
122 c = (unsigned long)(d0 >> 26); h0 = (unsigned long)d0 & 0x3ffffff;
123 d1 += c; c = (unsigned long)(d1 >> 26); h1 = (unsigned long)d1 & 0x3ffffff;
124 d2 += c; c = (unsigned long)(d2 >> 26); h2 = (unsigned long)d2 & 0x3ffffff;
125 d3 += c; c = (unsigned long)(d3 >> 26); h3 = (unsigned long)d3 & 0x3ffffff;
126 d4 += c; c = (unsigned long)(d4 >> 26); h4 = (unsigned long)d4 & 0x3ffffff;
127 h0 += c * 5; c = (h0 >> 26); h0 = h0 & 0x3ffffff;
128 h1 += c;
129
130 m += poly1305_block_size;
131 bytes -= poly1305_block_size;
132 }
133
134 st->h[0] = h0;
135 st->h[1] = h1;
136 st->h[2] = h2;
137 st->h[3] = h3;
138 st->h[4] = h4;
139}
140
141static inline void
142poly1305_update(poly1305_context *ctx, const unsigned char *m, size_t bytes) {
143 poly1305_state_internal_t *st = (poly1305_state_internal_t *)ctx;
144 size_t i;
145
146 /* handle leftover */
147 if (st->leftover) {
148 size_t want = (poly1305_block_size - st->leftover);
149 if (want > bytes)
150 want = bytes;
151 for (i = 0; i < want; i++)
152 st->buffer[st->leftover + i] = m[i];
153 bytes -= want;
154 m += want;
155 st->leftover += want;
156 if (st->leftover < poly1305_block_size)
157 return;
158 poly1305_blocks(st, st->buffer, poly1305_block_size);
159 st->leftover = 0;
160 }
161
162 /* process full blocks */
163 if (bytes >= poly1305_block_size) {
164 size_t want = (bytes & ~(poly1305_block_size - 1));
165 poly1305_blocks(st, m, want);
166 m += want;
167 bytes -= want;
168 }
169
170 /* store leftover */
171 if (bytes) {
172 for (i = 0; i < bytes; i++)
173 st->buffer[st->leftover + i] = m[i];
174 st->leftover += bytes;
175 }
176}
177
178static inline void
179poly1305_finish(poly1305_context *ctx, unsigned char mac[16]) {
180 poly1305_state_internal_t *st = (poly1305_state_internal_t *)ctx;
181 unsigned long h0,h1,h2,h3,h4,c;
182 unsigned long g0,g1,g2,g3,g4;
183 unsigned long long f;
184 unsigned long mask;
185
186 /* process the remaining block */
187 if (st->leftover) {
188 size_t i = st->leftover;
189 st->buffer[i++] = 1;
190 for (; i < poly1305_block_size; i++)
191 st->buffer[i] = 0;
192 st->final = 1;
193 poly1305_blocks(st, st->buffer, poly1305_block_size);
194 }
195
196 /* fully carry h */
197 h0 = st->h[0];
198 h1 = st->h[1];
199 h2 = st->h[2];
200 h3 = st->h[3];
201 h4 = st->h[4];
202
203 c = h1 >> 26; h1 = h1 & 0x3ffffff;
204 h2 += c; c = h2 >> 26; h2 = h2 & 0x3ffffff;
205 h3 += c; c = h3 >> 26; h3 = h3 & 0x3ffffff;
206 h4 += c; c = h4 >> 26; h4 = h4 & 0x3ffffff;
207 h0 += c * 5; c = h0 >> 26; h0 = h0 & 0x3ffffff;
208 h1 += c;
209
210 /* compute h + -p */
211 g0 = h0 + 5; c = g0 >> 26; g0 &= 0x3ffffff;
212 g1 = h1 + c; c = g1 >> 26; g1 &= 0x3ffffff;
213 g2 = h2 + c; c = g2 >> 26; g2 &= 0x3ffffff;
214 g3 = h3 + c; c = g3 >> 26; g3 &= 0x3ffffff;
215 g4 = h4 + c - (1 << 26);
216
217 /* select h if h < p, or h + -p if h >= p */
218 mask = (g4 >> ((sizeof(unsigned long) * 8) - 1)) - 1;
219 g0 &= mask;
220 g1 &= mask;
221 g2 &= mask;
222 g3 &= mask;
223 g4 &= mask;
224 mask = ~mask;
225 h0 = (h0 & mask) | g0;
226 h1 = (h1 & mask) | g1;
227 h2 = (h2 & mask) | g2;
228 h3 = (h3 & mask) | g3;
229 h4 = (h4 & mask) | g4;
230
231 /* h = h % (2^128) */
232 h0 = ((h0 ) | (h1 << 26)) & 0xffffffff;
233 h1 = ((h1 >> 6) | (h2 << 20)) & 0xffffffff;
234 h2 = ((h2 >> 12) | (h3 << 14)) & 0xffffffff;
235 h3 = ((h3 >> 18) | (h4 << 8)) & 0xffffffff;
236
237 /* mac = (h + pad) % (2^128) */
238 f = (unsigned long long)h0 + st->pad[0] ; h0 = (unsigned long)f;
239 f = (unsigned long long)h1 + st->pad[1] + (f >> 32); h1 = (unsigned long)f;
240 f = (unsigned long long)h2 + st->pad[2] + (f >> 32); h2 = (unsigned long)f;
241 f = (unsigned long long)h3 + st->pad[3] + (f >> 32); h3 = (unsigned long)f;
242
243 U32TO8(mac + 0, h0);
244 U32TO8(mac + 4, h1);
245 U32TO8(mac + 8, h2);
246 U32TO8(mac + 12, h3);
247
248 /* zero out the state */
249 st->h[0] = 0;
250 st->h[1] = 0;
251 st->h[2] = 0;
252 st->h[3] = 0;
253 st->h[4] = 0;
254 st->r[0] = 0;
255 st->r[1] = 0;
256 st->r[2] = 0;
257 st->r[3] = 0;
258 st->r[4] = 0;
259 st->pad[0] = 0;
260 st->pad[1] = 0;
261 st->pad[2] = 0;
262 st->pad[3] = 0;
263}
diff --git a/src/lib/libcrypto/poly1305/poly1305.c b/src/lib/libcrypto/poly1305/poly1305.c
new file mode 100644
index 0000000000..96083fe7e9
--- /dev/null
+++ b/src/lib/libcrypto/poly1305/poly1305.c
@@ -0,0 +1,37 @@
1/*
2 * Copyright (c) 2014 Joel Sing <jsing@openbsd.org>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include "poly1305.h"
18#include "poly1305-donna.c"
19
20void
21CRYPTO_poly1305_init(poly1305_context *ctx, const unsigned char key[32])
22{
23 poly1305_init(ctx, key);
24}
25
26void
27CRYPTO_poly1305_update(poly1305_context *ctx, const unsigned char *in,
28 size_t len)
29{
30 poly1305_update(ctx, in, len);
31}
32
33void
34CRYPTO_poly1305_finish(poly1305_context *ctx, unsigned char mac[16])
35{
36 poly1305_finish(ctx, mac);
37}
diff --git a/src/lib/libcrypto/poly1305/poly1305.h b/src/lib/libcrypto/poly1305/poly1305.h
new file mode 100644
index 0000000000..a4ccdd5d80
--- /dev/null
+++ b/src/lib/libcrypto/poly1305/poly1305.h
@@ -0,0 +1,48 @@
1/*
2 * Copyright (c) Joel Sing <jsing@openbsd.org>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#ifndef HEADER_POLY1305_H
18#define HEADER_POLY1305_H
19
20#include <openssl/opensslconf.h>
21
22#if defined(OPENSSL_NO_POLY1305)
23#error Poly1305 is disabled.
24#endif
25
26#include <stddef.h>
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
32typedef struct poly1305_context {
33 size_t aligner;
34 unsigned char opaque[136];
35} poly1305_context;
36
37typedef struct poly1305_context poly1305_state;
38
39void CRYPTO_poly1305_init(poly1305_context *ctx, const unsigned char key[32]);
40void CRYPTO_poly1305_update(poly1305_context *ctx, const unsigned char *in,
41 size_t len);
42void CRYPTO_poly1305_finish(poly1305_context *ctx, unsigned char mac[16]);
43
44#ifdef __cplusplus
45}
46#endif
47
48#endif /* HEADER_POLY1305_H */
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