# FHE Challenges **URL:** https://openfhe.discourse.group/c/fhe-challenges/20.md [Latest](https://openfhe.discourse.group/latest.md) · [Categories](https://openfhe.discourse.group/categories.md) · [Tags](https://openfhe.discourse.group/tags.md) --- ## [About the FHE Challenges category](https://openfhe.discourse.group/t/about-the-fhe-challenges-category/884)
**Author:** [@ypolyakov](https://openfhe.discourse.group/u/ypolyakov)\ **Replies:** 4\ **Last updated:** [February 5, 2024, 11:30am UTC](https://openfhe.discourse.group/t/about-the-fhe-challenges-category/884 "2024-02-05T11:30:11Z")
This category is for topics related to FHERMA FHE Challenges. --- ## [Error in code submission](https://openfhe.discourse.group/t/error-in-code-submission/2175)
**Author:** [@div](https://openfhe.discourse.group/u/div)\ **Replies:** 0\ **Last updated:** [September 15, 2025, 6:36pm UTC](https://openfhe.discourse.group/t/error-in-code-submission/2175 "2025-09-15T18:36:02Z")
Hi, I had downloaded the app template from fherma-challenges/templates/openfhe-python at main · fairmath/fherma-challenges · GitHub and submitted the code for a challenge. The submission got accepted (0 score because t… --- ## [Failed by Sign Evaluation challenge](https://openfhe.discourse.group/t/failed-by-sign-evaluation-challenge/1944)
**Author:** [@capibala](https://openfhe.discourse.group/u/capibala)\ **Replies:** 1\ **Last updated:** [March 26, 2025, 3:15pm UTC](https://openfhe.discourse.group/t/failed-by-sign-evaluation-challenge/1944 "2025-03-26T15:15:29Z")
run GitHub - Fherma-challenges/signum: Signum challenge repository ./app --key\_pub ../key\_pub.txt --key\_mult ../key\_mult.txt --cc ../cc.json --input ../input.txt --output ../output.txt terminate called after throwing a… --- ## [Failed by timeout in House Price Prediction challenge](https://openfhe.discourse.group/t/failed-by-timeout-in-house-price-prediction-challenge/1933)
**Author:** [@malioboro](https://openfhe.discourse.group/u/malioboro)\ **Replies:** 0\ **Last updated:** [March 16, 2025, 5:33pm UTC](https://openfhe.discourse.group/t/failed-by-timeout-in-house-price-prediction-challenge/1933 "2025-03-16T17:33:48Z")
I tried to submit for this House Price Prediction challenge using this config.json: { "indexes\_for\_rotation\_key": \[ 1,2,4,8,9,10,11,12,13,14,15,16 \], "mult\_depth":11, "batch\_size": 128, "enable\_bootstrappi… --- ## [Will the participant code on the FHERMA challenge be made public?](https://openfhe.discourse.group/t/will-the-participant-code-on-the-fherma-challenge-be-made-public/1778)
**Author:** [@capibala](https://openfhe.discourse.group/u/capibala)\ **Replies:** 2\ **Last updated:** [December 17, 2024, 2:34am UTC](https://openfhe.discourse.group/t/will-the-participant-code-on-the-fherma-challenge-be-made-public/1778 "2024-12-17T02:34:00Z")
Some of the challenges were very beneficial to my research, but I tried many methods and could not achieve 100% accuracy in the challenges --- ## [Allowed list of config parameters](https://openfhe.discourse.group/t/allowed-list-of-config-parameters/1486)
**Author:** [@pandasamanvaya](https://openfhe.discourse.group/u/pandasamanvaya)\ **Replies:** 2\ **Last updated:** [August 17, 2024, 3:11am UTC](https://openfhe.discourse.group/t/allowed-list-of-config-parameters/1486 "2024-08-17T03:11:23Z")
Hi team. I have a question regarding the parameters allowed in the config.json file for a challenge. Are the parameters mentioned as example in respective challenges the only set of parameters that can be used for that c… --- ## [Matrix Multiplication challenge accuracy](https://openfhe.discourse.group/t/matrix-multiplication-challenge-accuracy/994)
**Author:** [@oksuman](https://openfhe.discourse.group/u/oksuman)\ **Replies:** 2\ **Last updated:** [December 24, 2023, 11:59pm UTC](https://openfhe.discourse.group/t/matrix-multiplication-challenge-accuracy/994 "2023-12-24T23:59:20Z")
Hello. I want to participate in the matrix multiplication challenge, but I wonder about the way to evaluate accuracy. When I checked my evaluation result for matrix multiplication locally, I obtained high accuracy. Yet, … --- ## [Logistic Function Challenge](https://openfhe.discourse.group/t/logistic-function-challenge/887)
**Author:** [@ypolyakov](https://openfhe.discourse.group/u/ypolyakov)\ **Replies:** 10\ **Last updated:** [November 10, 2023, 10:47am UTC](https://openfhe.discourse.group/t/logistic-function-challenge/887 "2023-11-10T10:47:55Z")
This topic for discussions on the Logistic Function challenge posted at https://fherma.io/challenges --- ## [Sign Evaluation Challenge](https://openfhe.discourse.group/t/sign-evaluation-challenge/886)
**Author:** [@ypolyakov](https://openfhe.discourse.group/u/ypolyakov)\ **Replies:** 2\ **Last updated:** [November 9, 2023, 11:01am UTC](https://openfhe.discourse.group/t/sign-evaluation-challenge/886 "2023-11-09T11:01:13Z")
This topic for discussions on the Sign Evaluation challenge posted at https://fherma.io/challenges --- ## [Matrix Multiplication Challenge](https://openfhe.discourse.group/t/matrix-multiplication-challenge/885)
**Author:** [@ypolyakov](https://openfhe.discourse.group/u/ypolyakov)\ **Replies:** 0\ **Last updated:** [November 7, 2023, 8:00pm UTC](https://openfhe.discourse.group/t/matrix-multiplication-challenge/885 "2023-11-07T20:00:15Z")
This topic for discussions on the Matrix Multiplication challenge posted at https://fherma.io/challenges