Developed and integrated a CUDA-accelerated Multi-Scalar Multiplication (MSM) for the BLS12-381 elliptic curve in the lambdaworks repository, leveraging GPU programming and advanced 384-bit arithmetic shaders to enhance cryptographic computations. The implementation included porting Metal MSM logic to CUDA, introducing a Rust-based dispatcher for kernel management, and automating kernel instantiation for streamlined builds. To maintain codebase stability, the CUDA MSM path was subsequently rolled back, preserving baseline integrity while informing future optimization strategies. This work established a robust foundation for GPU-accelerated elliptic curve cryptography, emphasizing cross-language integration between Rust and CUDA and careful release management practices.