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-rw-r--r--sys/dev/if_wg/module/crypto/zinc/poly1305/poly1305-donna64.c182
1 files changed, 0 insertions, 182 deletions
diff --git a/sys/dev/if_wg/module/crypto/zinc/poly1305/poly1305-donna64.c b/sys/dev/if_wg/module/crypto/zinc/poly1305/poly1305-donna64.c
deleted file mode 100644
index 131f1dda1b1d..000000000000
--- a/sys/dev/if_wg/module/crypto/zinc/poly1305/poly1305-donna64.c
+++ /dev/null
@@ -1,182 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0 OR MIT
-/*
- * Copyright (C) 2015-2019 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.
- */
-
-typedef __uint128_t u128;
-
-struct poly1305_internal {
- u64 r[3];
- u64 h[3];
- u64 s[2];
-};
-
-static void poly1305_init_generic(void *ctx, const u8 key[16])
-{
- struct poly1305_internal *st = (struct poly1305_internal *)ctx;
- u64 t0, t1;
-
- /* r &= 0xffffffc0ffffffc0ffffffc0fffffff */
- t0 = get_unaligned_le64(&key[0]);
- t1 = get_unaligned_le64(&key[8]);
-
- st->r[0] = t0 & 0xffc0fffffffULL;
- st->r[1] = ((t0 >> 44) | (t1 << 20)) & 0xfffffc0ffffULL;
- st->r[2] = ((t1 >> 24)) & 0x00ffffffc0fULL;
-
- /* s = 20*r */
- st->s[0] = st->r[1] * 20;
- st->s[1] = st->r[2] * 20;
-
- /* h = 0 */
- st->h[0] = 0;
- st->h[1] = 0;
- st->h[2] = 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 u64 hibit = ((u64)padbit) << 40;
- u64 r0, r1, r2;
- u64 s1, s2;
- u64 h0, h1, h2;
- u64 c;
- u128 d0, d1, d2, d;
-
- r0 = st->r[0];
- r1 = st->r[1];
- r2 = st->r[2];
-
- h0 = st->h[0];
- h1 = st->h[1];
- h2 = st->h[2];
-
- s1 = st->s[0];
- s2 = st->s[1];
-
- while (len >= POLY1305_BLOCK_SIZE) {
- u64 t0, t1;
-
- /* h += m[i] */
- t0 = get_unaligned_le64(&input[0]);
- t1 = get_unaligned_le64(&input[8]);
-
- h0 += t0 & 0xfffffffffffULL;
- h1 += ((t0 >> 44) | (t1 << 20)) & 0xfffffffffffULL;
- h2 += (((t1 >> 24)) & 0x3ffffffffffULL) | hibit;
-
- /* h *= r */
- d0 = (u128)h0 * r0;
- d = (u128)h1 * s2;
- d0 += d;
- d = (u128)h2 * s1;
- d0 += d;
- d1 = (u128)h0 * r1;
- d = (u128)h1 * r0;
- d1 += d;
- d = (u128)h2 * s2;
- d1 += d;
- d2 = (u128)h0 * r2;
- d = (u128)h1 * r1;
- d2 += d;
- d = (u128)h2 * r0;
- d2 += d;
-
- /* (partial) h %= p */
- c = (u64)(d0 >> 44);
- h0 = (u64)d0 & 0xfffffffffffULL;
- d1 += c;
- c = (u64)(d1 >> 44);
- h1 = (u64)d1 & 0xfffffffffffULL;
- d2 += c;
- c = (u64)(d2 >> 42);
- h2 = (u64)d2 & 0x3ffffffffffULL;
- h0 += c * 5;
- c = h0 >> 44;
- h0 = h0 & 0xfffffffffffULL;
- h1 += c;
-
- input += POLY1305_BLOCK_SIZE;
- len -= POLY1305_BLOCK_SIZE;
- }
-
- st->h[0] = h0;
- st->h[1] = h1;
- st->h[2] = h2;
-}
-
-static void poly1305_emit_generic(void *ctx, u8 mac[16], const u32 nonce[4])
-{
- struct poly1305_internal *st = (struct poly1305_internal *)ctx;
- u64 h0, h1, h2, c;
- u64 g0, g1, g2;
- u64 t0, t1;
-
- /* fully carry h */
- h0 = st->h[0];
- h1 = st->h[1];
- h2 = st->h[2];
-
- c = h1 >> 44;
- h1 &= 0xfffffffffffULL;
- h2 += c;
- c = h2 >> 42;
- h2 &= 0x3ffffffffffULL;
- h0 += c * 5;
- c = h0 >> 44;
- h0 &= 0xfffffffffffULL;
- h1 += c;
- c = h1 >> 44;
- h1 &= 0xfffffffffffULL;
- h2 += c;
- c = h2 >> 42;
- h2 &= 0x3ffffffffffULL;
- h0 += c * 5;
- c = h0 >> 44;
- h0 &= 0xfffffffffffULL;
- h1 += c;
-
- /* compute h + -p */
- g0 = h0 + 5;
- c = g0 >> 44;
- g0 &= 0xfffffffffffULL;
- g1 = h1 + c;
- c = g1 >> 44;
- g1 &= 0xfffffffffffULL;
- g2 = h2 + c - (1ULL << 42);
-
- /* select h if h < p, or h + -p if h >= p */
- c = (g2 >> ((sizeof(u64) * 8) - 1)) - 1;
- g0 &= c;
- g1 &= c;
- g2 &= c;
- c = ~c;
- h0 = (h0 & c) | g0;
- h1 = (h1 & c) | g1;
- h2 = (h2 & c) | g2;
-
- /* h = (h + nonce) */
- t0 = ((u64)nonce[1] << 32) | nonce[0];
- t1 = ((u64)nonce[3] << 32) | nonce[2];
-
- h0 += t0 & 0xfffffffffffULL;
- c = h0 >> 44;
- h0 &= 0xfffffffffffULL;
- h1 += (((t0 >> 44) | (t1 << 20)) & 0xfffffffffffULL) + c;
- c = h1 >> 44;
- h1 &= 0xfffffffffffULL;
- h2 += (((t1 >> 24)) & 0x3ffffffffffULL) + c;
- h2 &= 0x3ffffffffffULL;
-
- /* mac = h % (2^128) */
- h0 = h0 | (h1 << 44);
- h1 = (h1 >> 20) | (h2 << 24);
-
- put_unaligned_le64(h0, &mac[0]);
- put_unaligned_le64(h1, &mac[8]);
-}