From f1a0f0a56fdd0fc39f255174ce08c06b91c66c94 Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@gmail.com>
Date: Fri, 23 Feb 2018 11:04:39 +0100
Subject: Update NSS to 3.35-RTM

---
 security/nss/lib/freebl/chacha20.c | 104 +------------------------------------
 1 file changed, 2 insertions(+), 102 deletions(-)

(limited to 'security/nss/lib/freebl/chacha20.c')

diff --git a/security/nss/lib/freebl/chacha20.c b/security/nss/lib/freebl/chacha20.c
index f55d1e670..15ed67b5b 100644
--- a/security/nss/lib/freebl/chacha20.c
+++ b/security/nss/lib/freebl/chacha20.c
@@ -7,113 +7,13 @@
 #include <string.h>
 #include <stdio.h>
 
-#include "prtypes.h"
-#include "secport.h"
 #include "chacha20.h"
-
-#if defined(_MSC_VER)
-#pragma intrinsic(_lrotl)
-#define ROTL32(x, n) _lrotl(x, n)
-#else
-#define ROTL32(x, n) ((x << n) | (x >> ((8 * sizeof x) - n)))
-#endif
-
-#define ROTATE(v, c) ROTL32((v), (c))
-
-#define U32TO8_LITTLE(p, v)          \
-    {                                \
-        (p)[0] = ((v)) & 0xff;       \
-        (p)[1] = ((v) >> 8) & 0xff;  \
-        (p)[2] = ((v) >> 16) & 0xff; \
-        (p)[3] = ((v) >> 24) & 0xff; \
-    }
-#define U8TO32_LITTLE(p)                                \
-    (((PRUint32)((p)[0])) | ((PRUint32)((p)[1]) << 8) | \
-     ((PRUint32)((p)[2]) << 16) | ((PRUint32)((p)[3]) << 24))
-
-#define QUARTERROUND(x, a, b, c, d) \
-    x[a] = x[a] + x[b];             \
-    x[d] = ROTATE(x[d] ^ x[a], 16); \
-    x[c] = x[c] + x[d];             \
-    x[b] = ROTATE(x[b] ^ x[c], 12); \
-    x[a] = x[a] + x[b];             \
-    x[d] = ROTATE(x[d] ^ x[a], 8);  \
-    x[c] = x[c] + x[d];             \
-    x[b] = ROTATE(x[b] ^ x[c], 7);
-
-static void
-ChaChaCore(unsigned char output[64], const PRUint32 input[16], int num_rounds)
-{
-    PRUint32 x[16];
-    int i;
-
-    PORT_Memcpy(x, input, sizeof(PRUint32) * 16);
-    for (i = num_rounds; i > 0; i -= 2) {
-        QUARTERROUND(x, 0, 4, 8, 12)
-        QUARTERROUND(x, 1, 5, 9, 13)
-        QUARTERROUND(x, 2, 6, 10, 14)
-        QUARTERROUND(x, 3, 7, 11, 15)
-        QUARTERROUND(x, 0, 5, 10, 15)
-        QUARTERROUND(x, 1, 6, 11, 12)
-        QUARTERROUND(x, 2, 7, 8, 13)
-        QUARTERROUND(x, 3, 4, 9, 14)
-    }
-
-    for (i = 0; i < 16; ++i) {
-        x[i] = x[i] + input[i];
-    }
-    for (i = 0; i < 16; ++i) {
-        U32TO8_LITTLE(output + 4 * i, x[i]);
-    }
-}
-
-static const unsigned char sigma[16] = "expand 32-byte k";
+#include "verified/Hacl_Chacha20.h"
 
 void
 ChaCha20XOR(unsigned char *out, const unsigned char *in, unsigned int inLen,
             const unsigned char key[32], const unsigned char nonce[12],
             uint32_t counter)
 {
-    unsigned char block[64];
-    PRUint32 input[16];
-    unsigned int i;
-
-    input[4] = U8TO32_LITTLE(key + 0);
-    input[5] = U8TO32_LITTLE(key + 4);
-    input[6] = U8TO32_LITTLE(key + 8);
-    input[7] = U8TO32_LITTLE(key + 12);
-
-    input[8] = U8TO32_LITTLE(key + 16);
-    input[9] = U8TO32_LITTLE(key + 20);
-    input[10] = U8TO32_LITTLE(key + 24);
-    input[11] = U8TO32_LITTLE(key + 28);
-
-    input[0] = U8TO32_LITTLE(sigma + 0);
-    input[1] = U8TO32_LITTLE(sigma + 4);
-    input[2] = U8TO32_LITTLE(sigma + 8);
-    input[3] = U8TO32_LITTLE(sigma + 12);
-
-    input[12] = counter;
-    input[13] = U8TO32_LITTLE(nonce + 0);
-    input[14] = U8TO32_LITTLE(nonce + 4);
-    input[15] = U8TO32_LITTLE(nonce + 8);
-
-    while (inLen >= 64) {
-        ChaChaCore(block, input, 20);
-        for (i = 0; i < 64; i++) {
-            out[i] = in[i] ^ block[i];
-        }
-
-        input[12]++;
-        inLen -= 64;
-        in += 64;
-        out += 64;
-    }
-
-    if (inLen > 0) {
-        ChaChaCore(block, input, 20);
-        for (i = 0; i < inLen; i++) {
-            out[i] = in[i] ^ block[i];
-        }
-    }
+    Hacl_Chacha20_chacha20(out, (uint8_t *)in, inLen, (uint8_t *)key, (uint8_t *)nonce, counter);
 }
-- 
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