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-rw-r--r--sys/src/libsec/port/rsagen.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/src/libsec/port/rsagen.c b/sys/src/libsec/port/rsagen.c
index ebe1079d9..31c06241c 100644
--- a/sys/src/libsec/port/rsagen.c
+++ b/sys/src/libsec/port/rsagen.c
@@ -39,6 +39,8 @@ rsagen(int nlen, int elen, int rounds)
break;
mpadd(mpone, e, e);
}
+ if(d->sign < 0)
+ mpadd(phi, d, d);
mpfree(t1);
mpfree(t2);