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cs.CR2026
Privacy-Preserving GNN Inference on Financial Transaction Graphs via Homomorphic Encryption
H. Çağrı Bilgi, Kemal Mutluergil, Ceren Yıldırım +2
Anti-money laundering (AML) in financial networks requires modeling transaction patterns that span multiple institutions. In practice, however, banks cannot share account and trans…
cs.CR2026
Diagonal Packing for Efficient Homomorphic Sparse Matrix-Vector Multiplication
Kemal Mutluergil, Deniz Elbek, Kamer Kaya +1
Homomorphic encryption (HE) enables computation over encrypted data but incurs a substantial overhead. For sparse matrix-vector multiplication, the widely used Halevi-Shoup scheme…