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authorwolfbeast <mcwerewolf@gmail.com>2018-02-23 11:04:39 +0100
committerwolfbeast <mcwerewolf@gmail.com>2018-02-23 11:04:39 +0100
commitf1a0f0a56fdd0fc39f255174ce08c06b91c66c94 (patch)
tree99ccc8e212257e1da1902036ae261e8e55d55c1c /security/nss/lib/freebl/chacha20poly1305.c
parent8781f745556be5d7402d0f3adc67ecfe32fe04a0 (diff)
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Update NSS to 3.35-RTM
Diffstat (limited to 'security/nss/lib/freebl/chacha20poly1305.c')
-rw-r--r--security/nss/lib/freebl/chacha20poly1305.c51
1 files changed, 50 insertions, 1 deletions
diff --git a/security/nss/lib/freebl/chacha20poly1305.c b/security/nss/lib/freebl/chacha20poly1305.c
index cd265e1ff..991fa0ca3 100644
--- a/security/nss/lib/freebl/chacha20poly1305.c
+++ b/security/nss/lib/freebl/chacha20poly1305.c
@@ -14,7 +14,11 @@
#include "blapit.h"
#ifndef NSS_DISABLE_CHACHAPOLY
+#if defined(HAVE_INT128_SUPPORT) && (defined(NSS_X86_OR_X64) || defined(__aarch64__))
+#include "verified/Hacl_Poly1305_64.h"
+#else
#include "poly1305.h"
+#endif
#include "chacha20.h"
#include "chacha20poly1305.h"
#endif
@@ -22,6 +26,49 @@
/* Poly1305Do writes the Poly1305 authenticator of the given additional data
* and ciphertext to |out|. */
#ifndef NSS_DISABLE_CHACHAPOLY
+
+#if defined(HAVE_INT128_SUPPORT) && (defined(NSS_X86_OR_X64) || defined(__aarch64__))
+
+static void
+Poly1305PadUpdate(Hacl_Impl_Poly1305_64_State_poly1305_state state, unsigned char *block, const unsigned char *p, const unsigned int pLen)
+{
+ unsigned int pRemLen = pLen % 16;
+ Hacl_Poly1305_64_update(state, (uint8_t *)p, (pLen / 16));
+ if (pRemLen > 0) {
+ memcpy(block, p + (pLen - pRemLen), pRemLen);
+ Hacl_Poly1305_64_update(state, block, 1);
+ }
+}
+
+static void
+Poly1305Do(unsigned char *out, const unsigned char *ad, unsigned int adLen,
+ const unsigned char *ciphertext, unsigned int ciphertextLen,
+ const unsigned char key[32])
+{
+ uint64_t tmp1[6U] = { 0U };
+ Hacl_Impl_Poly1305_64_State_poly1305_state state = Hacl_Poly1305_64_mk_state(tmp1, tmp1 + 3);
+
+ unsigned char block[16] = { 0 };
+ Hacl_Poly1305_64_init(state, (uint8_t *)key);
+
+ Poly1305PadUpdate(state, block, ad, adLen);
+ memset(block, 0, 16);
+ Poly1305PadUpdate(state, block, ciphertext, ciphertextLen);
+
+ unsigned int i;
+ unsigned int j;
+ for (i = 0, j = adLen; i < 8; i++, j >>= 8) {
+ block[i] = j;
+ }
+ for (i = 8, j = ciphertextLen; i < 16; i++, j >>= 8) {
+ block[i] = j;
+ }
+
+ Hacl_Poly1305_64_update(state, block, 1);
+ Hacl_Poly1305_64_finish(state, out, (uint8_t *)(key + 16));
+}
+#else
+
static void
Poly1305Do(unsigned char *out, const unsigned char *ad, unsigned int adLen,
const unsigned char *ciphertext, unsigned int ciphertextLen,
@@ -56,7 +103,9 @@ Poly1305Do(unsigned char *out, const unsigned char *ad, unsigned int adLen,
Poly1305Update(&state, lengthBytes, sizeof(lengthBytes));
Poly1305Finish(&state, out);
}
-#endif
+
+#endif /* HAVE_INT128_SUPPORT */
+#endif /* NSS_DISABLE_CHACHAPOLY */
SECStatus
ChaCha20Poly1305_InitContext(ChaCha20Poly1305Context *ctx,