yifeiz29/fhe-challenge-data

FHE Challenge Benchmark

20 FHE challenges from FHERMA for evaluating AI agents.

Directory Structure

fhe_challenge/
├── black_box/              # Pre-encrypted test cases (3)
│   ├── challenge_relu/
│   ├── challenge_sigmoid/
│   └── challenge_sign/
├── white_box/
│   ├── openfhe/            # OpenFHE C++ challenges (11)
│   ├── ml_inference/       # ML model challenges (4)
│   └── non-OpenFHE/        # Other libraries (2)
└── README.md

Challenge Types

Type	Count	Key Gen	Encrypt	Decrypt	Agent Task
Black Box	3	Pre-done	Pre-done	Validator	Implement eval()
White Box	17	Validator	Validator	Validator	Implement full solution

Black Box (3 challenges)

Agent receives pre-encrypted inputs and keys. Implements eval() function.

Challenge	Scheme	Function	Input Range	Depth
relu	CKKS	max(0, x)	[-1, 1]	12, 4
sigmoid	CKKS	1/(1+e^-x)	[-25, 25]	7, 4
sign	CKKS	sign(x)	[-1, 1]	10

White Box - OpenFHE (11 challenges)

Challenge	Scheme	Task
array_sorting	CKKS	Sort array ascending
gelu	CKKS	GELU activation function
invertible_matrix	CKKS	Matrix invertibility check
knn	CKKS	K-nearest neighbors (k=10)
lookup_table	BFV	Table lookup by index
matrix_multiplication	CKKS	64x64 matrix multiply
max	CKKS	Find maximum element
parity	CKKS	Compute parity bit
shl	BFV	Shift left operation
softmax	CKKS	Softmax function
svd	CKKS	SVD decomposition

White Box - ML Inference (4 challenges)

Challenge	Model	Task	Template
cifar10	CNN	Image classification (10 classes)	C++
house_prediction	Linear	Price regression	Python
sentiment_analysis	Classifier	Text sentiment (3 classes)	Python
svm	SVM	Fraud detection	C++

White Box - Non-OpenFHE (2 challenges)

Challenge	Library	Scheme	Language
string_search	IBM HElayers	CKKS	Python
swift	Apple swift-homomorphic-encryption	BFV	Swift

Running Challenges

Black Box

cd black_box/challenge_relu
docker build -t relu .
docker run --rm -v $(pwd)/tests/testcase1:/data relu

White Box

cd white_box/openfhe/challenge_max
./verify.sh

CLI Arguments

All challenges use consistent CLI args:

• --cc - CryptoContext
• --key_pub - Public key
• --key_mult - Multiplication/relinearization key
• --key_rot - Rotation keys
• --output - Output ciphertext path
• Challenge-specific input args (--input, --sample, --array, etc.)

Resources

• FHERMA Platform
• OpenFHE
• OpenFHE Python
• Apple Swift-HE
• IBM HElayers
• fherma-validator