Add test for generating supersingular curves with chosen prime.

J08nY · Nov 29, 2024 · b90324e · b90324e
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diff --git a/README.md b/README.md
@@ -244,6 +244,7 @@ Four different EC curve parameters generation methods are implemented.
  - Used with the `--anomalous` option.
  - These curves are **NOT SECURE** and are useful for implementation testing.
  - [Elliptic curves over F_p suitable for cryptosystems - [Miyaji]](https://dspace.jaist.ac.jp/dspace/bitstream/10119/4464/1/73-61.pdf)
+ - TODO: Extend with [Generating Anomalous Elliptic Curves - [Leprevost, Monnerat, Varrette, Vaydenay]](https://www.monnerat.info/publications/anomalous.pdf)
 
 ### Build
 

diff --git a/test/data/prime.in b/test/data/prime.in
@@ -0,0 +1 @@
+7161604836617373209
diff --git a/test/ecgen.sh b/test/ecgen.sh
@@ -116,6 +116,8 @@ function supersingular() {
 	order_m1=$(echo $(canonical_num $order) - 1 | bc)
     assert "canonical_num $p" $order_m1
 
+    assert_raises "${ecgen} --fp --supersingular --input=data/prime.in 64"
+
     assert_raises "${ecgen} --fp --supersingular -r -u --metadata 20"
     assert_raises "${ecgen} --fp --supersingular -r --points=random 16"
     assert_raises "${ecgen} --fp --supersingular -r --points=5random 16"