Add large payload encryption testing for Go SDK#1664
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Standalone tool to verify encrypt/decrypt round-trips at 25-100MB+ payload sizes, investigating reported issues with large payloads. Generates random data, checksums, encrypts via Asherah, persists the DRR to disk, validates ciphertext integrity, then decrypts from file and verifies checksum match. Includes Dockerfile for Linux container validation. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Sub-benchmarks for 1MB, 10MB, 25MB, 50MB, and 100MB payloads with throughput reporting via b.SetBytes. Complements the standalone large payload test tool for automated regression tracking. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
samples/go/largepayload/) that validates encrypt/decrypt round-trips at 25-100MB+ payload sizes, with SHA-256 checksum verification, ciphertext integrity checks, and file-based DRR persistenceMotivation
Investigating reported issues with large payload (25-100MB) encryption from a downstream FFI-based consumer of the Go SDK. This tooling isolates pure Go behavior from FFI/CGO complexity to determine whether the issue originates in the SDK itself.
Test plan
cd samples/go/largepayload && go build -o largepayload . && ./largepayload -sizes 1,25docker build -f samples/go/largepayload/Dockerfile -t asherah-largepayload . && docker run --rm asherah-largepayload -sizes 1,25cd go/appencryption/integrationtest && go test -bench=Benchmark_EncryptDecrypt_LargePayload -benchtime=1x -timeout=10m -run ^$