Module simd 

SIMD-accelerated cryptographic operations

This module provides SIMD (Single Instruction Multiple Data) optimized implementations of common cryptographic operations for improved performance on modern CPUs.

Features

• Parallel XOR: SIMD-accelerated XOR operations for stream ciphers and key mixing
• Constant-time equality: SIMD-accelerated constant-time comparisons
• Memory operations: Fast memory copying and zeroization
• Parallel hashing: Multi-threaded hash computation for large data

Platform Support

This module automatically detects CPU features and uses the best available SIMD instructions (AVX2, SSE2, NEON) or falls back to scalar operations.

Enums

SimdError

SIMD operation errors

Functions

batch_constant_time_eq

Batch constant-time comparison

constant_time_eq

SIMD-accelerated constant-time equality check

constant_time_eq_v2

SIMD-accelerated constant-time equality check (alternative using subtract_borrow trick)

parallel_hash

Parallel hash computation for large data

parallel_hash_with_threads

Parallel hash computation with custom thread count

secure_copy

SIMD-optimized memory copy for cryptographic data

secure_zero

Secure memory zeroization using volatile writes

xor_buffers

SIMD-accelerated XOR operation for buffers

xor_keystream

Parallel XOR with key stream for encryption/decryption

Type Aliases

SimdResult

Result type for SIMD operations