During this period, contributed to the python/cpython repository by developing a vectorized implementation of the Blake2 hashing algorithm for x86 architectures. This work involved updating the HACL library to integrate optimized cryptographic routines, leveraging C programming and performance optimization techniques. The new implementation enables faster cryptographic hashing, reducing CPU cycles and latency for workloads such as TLS and data integrity checks. By focusing on x86 vectorization and cryptography, the contribution improved throughput and scalability for systems dependent on Python’s cryptography stack. No major bugs were recorded, reflecting a targeted engineering effort centered on feature delivery and cross-repository collaboration.