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authorJason A. Donenfeld <Jason@zx2c4.com>2018-10-07 15:35:51 +0200
committerJason A. Donenfeld <Jason@zx2c4.com>2018-10-07 16:35:54 +0200
commit4b34b6af713f027a2f7f98478742418bf4755f6e (patch)
tree7fce70eec822d2372658158a06726d5ba0605495 /src/crypto/zinc/poly1305/poly1305-donna32.h
parentallowedips: document additional nobs (diff)
downloadwireguard-monolithic-historical-4b34b6af713f027a2f7f98478742418bf4755f6e.tar.xz
wireguard-monolithic-historical-4b34b6af713f027a2f7f98478742418bf4755f6e.zip
crypto: clean up remaining .h->.c
Diffstat (limited to 'src/crypto/zinc/poly1305/poly1305-donna32.h')
-rw-r--r--src/crypto/zinc/poly1305/poly1305-donna32.h205
1 files changed, 0 insertions, 205 deletions
diff --git a/src/crypto/zinc/poly1305/poly1305-donna32.h b/src/crypto/zinc/poly1305/poly1305-donna32.h
deleted file mode 100644
index 2e7565d..0000000
--- a/src/crypto/zinc/poly1305/poly1305-donna32.h
+++ /dev/null
@@ -1,205 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 OR MIT */
-/*
- * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
- *
- * This is based in part on Andrew Moon's poly1305-donna, which is in the
- * public domain.
- */
-
-struct poly1305_internal {
- u32 h[5];
- u32 r[5];
- u32 s[4];
-};
-
-static void poly1305_init_generic(void *ctx, const u8 key[16])
-{
- struct poly1305_internal *st = (struct poly1305_internal *)ctx;
-
- /* r &= 0xffffffc0ffffffc0ffffffc0fffffff */
- st->r[0] = (get_unaligned_le32(&key[0])) & 0x3ffffff;
- st->r[1] = (get_unaligned_le32(&key[3]) >> 2) & 0x3ffff03;
- st->r[2] = (get_unaligned_le32(&key[6]) >> 4) & 0x3ffc0ff;
- st->r[3] = (get_unaligned_le32(&key[9]) >> 6) & 0x3f03fff;
- st->r[4] = (get_unaligned_le32(&key[12]) >> 8) & 0x00fffff;
-
- /* s = 5*r */
- st->s[0] = st->r[1] * 5;
- st->s[1] = st->r[2] * 5;
- st->s[2] = st->r[3] * 5;
- st->s[3] = st->r[4] * 5;
-
- /* h = 0 */
- st->h[0] = 0;
- st->h[1] = 0;
- st->h[2] = 0;
- st->h[3] = 0;
- st->h[4] = 0;
-}
-
-static void poly1305_blocks_generic(void *ctx, const u8 *input, size_t len,
- const u32 padbit)
-{
- struct poly1305_internal *st = (struct poly1305_internal *)ctx;
- const u32 hibit = padbit << 24;
- u32 r0, r1, r2, r3, r4;
- u32 s1, s2, s3, s4;
- u32 h0, h1, h2, h3, h4;
- u64 d0, d1, d2, d3, d4;
- u32 c;
-
- r0 = st->r[0];
- r1 = st->r[1];
- r2 = st->r[2];
- r3 = st->r[3];
- r4 = st->r[4];
-
- s1 = st->s[0];
- s2 = st->s[1];
- s3 = st->s[2];
- s4 = st->s[3];
-
- h0 = st->h[0];
- h1 = st->h[1];
- h2 = st->h[2];
- h3 = st->h[3];
- h4 = st->h[4];
-
- while (len >= POLY1305_BLOCK_SIZE) {
- /* h += m[i] */
- h0 += (get_unaligned_le32(&input[0])) & 0x3ffffff;
- h1 += (get_unaligned_le32(&input[3]) >> 2) & 0x3ffffff;
- h2 += (get_unaligned_le32(&input[6]) >> 4) & 0x3ffffff;
- h3 += (get_unaligned_le32(&input[9]) >> 6) & 0x3ffffff;
- h4 += (get_unaligned_le32(&input[12]) >> 8) | hibit;
-
- /* h *= r */
- d0 = ((u64)h0 * r0) + ((u64)h1 * s4) +
- ((u64)h2 * s3) + ((u64)h3 * s2) +
- ((u64)h4 * s1);
- d1 = ((u64)h0 * r1) + ((u64)h1 * r0) +
- ((u64)h2 * s4) + ((u64)h3 * s3) +
- ((u64)h4 * s2);
- d2 = ((u64)h0 * r2) + ((u64)h1 * r1) +
- ((u64)h2 * r0) + ((u64)h3 * s4) +
- ((u64)h4 * s3);
- d3 = ((u64)h0 * r3) + ((u64)h1 * r2) +
- ((u64)h2 * r1) + ((u64)h3 * r0) +
- ((u64)h4 * s4);
- d4 = ((u64)h0 * r4) + ((u64)h1 * r3) +
- ((u64)h2 * r2) + ((u64)h3 * r1) +
- ((u64)h4 * r0);
-
- /* (partial) h %= p */
- c = (u32)(d0 >> 26);
- h0 = (u32)d0 & 0x3ffffff;
- d1 += c;
- c = (u32)(d1 >> 26);
- h1 = (u32)d1 & 0x3ffffff;
- d2 += c;
- c = (u32)(d2 >> 26);
- h2 = (u32)d2 & 0x3ffffff;
- d3 += c;
- c = (u32)(d3 >> 26);
- h3 = (u32)d3 & 0x3ffffff;
- d4 += c;
- c = (u32)(d4 >> 26);
- h4 = (u32)d4 & 0x3ffffff;
- h0 += c * 5;
- c = (h0 >> 26);
- h0 = h0 & 0x3ffffff;
- h1 += c;
-
- input += POLY1305_BLOCK_SIZE;
- len -= POLY1305_BLOCK_SIZE;
- }
-
- st->h[0] = h0;
- st->h[1] = h1;
- st->h[2] = h2;
- st->h[3] = h3;
- st->h[4] = h4;
-}
-
-static void poly1305_emit_generic(void *ctx, u8 mac[16], const u32 nonce[4])
-{
- struct poly1305_internal *st = (struct poly1305_internal *)ctx;
- u32 h0, h1, h2, h3, h4, c;
- u32 g0, g1, g2, g3, g4;
- u64 f;
- u32 mask;
-
- /* fully carry h */
- h0 = st->h[0];
- h1 = st->h[1];
- h2 = st->h[2];
- h3 = st->h[3];
- h4 = st->h[4];
-
- c = h1 >> 26;
- h1 = h1 & 0x3ffffff;
- h2 += c;
- c = h2 >> 26;
- h2 = h2 & 0x3ffffff;
- h3 += c;
- c = h3 >> 26;
- h3 = h3 & 0x3ffffff;
- h4 += c;
- c = h4 >> 26;
- h4 = h4 & 0x3ffffff;
- h0 += c * 5;
- c = h0 >> 26;
- h0 = h0 & 0x3ffffff;
- h1 += c;
-
- /* compute h + -p */
- g0 = h0 + 5;
- c = g0 >> 26;
- g0 &= 0x3ffffff;
- g1 = h1 + c;
- c = g1 >> 26;
- g1 &= 0x3ffffff;
- g2 = h2 + c;
- c = g2 >> 26;
- g2 &= 0x3ffffff;
- g3 = h3 + c;
- c = g3 >> 26;
- g3 &= 0x3ffffff;
- g4 = h4 + c - (1UL << 26);
-
- /* select h if h < p, or h + -p if h >= p */
- mask = (g4 >> ((sizeof(u32) * 8) - 1)) - 1;
- g0 &= mask;
- g1 &= mask;
- g2 &= mask;
- g3 &= mask;
- g4 &= mask;
- mask = ~mask;
-
- h0 = (h0 & mask) | g0;
- h1 = (h1 & mask) | g1;
- h2 = (h2 & mask) | g2;
- h3 = (h3 & mask) | g3;
- h4 = (h4 & mask) | g4;
-
- /* h = h % (2^128) */
- h0 = ((h0) | (h1 << 26)) & 0xffffffff;
- h1 = ((h1 >> 6) | (h2 << 20)) & 0xffffffff;
- h2 = ((h2 >> 12) | (h3 << 14)) & 0xffffffff;
- h3 = ((h3 >> 18) | (h4 << 8)) & 0xffffffff;
-
- /* mac = (h + nonce) % (2^128) */
- f = (u64)h0 + nonce[0];
- h0 = (u32)f;
- f = (u64)h1 + nonce[1] + (f >> 32);
- h1 = (u32)f;
- f = (u64)h2 + nonce[2] + (f >> 32);
- h2 = (u32)f;
- f = (u64)h3 + nonce[3] + (f >> 32);
- h3 = (u32)f;
-
- put_unaligned_le32(h0, &mac[0]);
- put_unaligned_le32(h1, &mac[4]);
- put_unaligned_le32(h2, &mac[8]);
- put_unaligned_le32(h3, &mac[12]);
-}