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Diffstat (limited to 'libmariadb/plugins/auth/ref10/fe_neg.c')
-rw-r--r--libmariadb/plugins/auth/ref10/fe_neg.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/libmariadb/plugins/auth/ref10/fe_neg.c b/libmariadb/plugins/auth/ref10/fe_neg.c
new file mode 100644
index 00000000..2078ce52
--- /dev/null
+++ b/libmariadb/plugins/auth/ref10/fe_neg.c
@@ -0,0 +1,45 @@
+#include "fe.h"
+
+/*
+h = -f
+
+Preconditions:
+ |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+
+Postconditions:
+ |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+*/
+
+void fe_neg(fe h,const fe f)
+{
+ crypto_int32 f0 = f[0];
+ crypto_int32 f1 = f[1];
+ crypto_int32 f2 = f[2];
+ crypto_int32 f3 = f[3];
+ crypto_int32 f4 = f[4];
+ crypto_int32 f5 = f[5];
+ crypto_int32 f6 = f[6];
+ crypto_int32 f7 = f[7];
+ crypto_int32 f8 = f[8];
+ crypto_int32 f9 = f[9];
+ crypto_int32 h0 = -f0;
+ crypto_int32 h1 = -f1;
+ crypto_int32 h2 = -f2;
+ crypto_int32 h3 = -f3;
+ crypto_int32 h4 = -f4;
+ crypto_int32 h5 = -f5;
+ crypto_int32 h6 = -f6;
+ crypto_int32 h7 = -f7;
+ crypto_int32 h8 = -f8;
+ crypto_int32 h9 = -f9;
+ h[0] = h0;
+ h[1] = h1;
+ h[2] = h2;
+ h[3] = h3;
+ h[4] = h4;
+ h[5] = h5;
+ h[6] = h6;
+ h[7] = h7;
+ h[8] = h8;
+ h[9] = h9;
+}