1 files changed, 19 insertions, 0 deletions
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_box/curve25519xsalsa20poly1305/ref/before_curve25519xsalsa20poly1305.c b/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_box/curve25519xsalsa20poly1305/ref/before_curve25519xsalsa20poly1305.c
new file mode 100644
index 00000000..40d4300e
--- /dev/null
+++ b/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_box/curve25519xsalsa20poly1305/ref/before_curve25519xsalsa20poly1305.c
@@ -0,0 +1,19 @@
+#include "api.h"
+#include "crypto_core_hsalsa20.h"
+#include "crypto_scalarmult_curve25519.h"
+
+static const unsigned char sigma[16] = {
+    'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k'
+};
+static const unsigned char n[16] = {0};
+
+int crypto_box_beforenm(
+  unsigned char *k,
+  const unsigned char *pk,
+  const unsigned char *sk
+)
+{
+  unsigned char s[32];
+  crypto_scalarmult_curve25519(s,sk,pk);
+  return crypto_core_hsalsa20(k,n,s,sigma);
+}