examples

Examples

Runnable example programs for github.com/ubgo/crypt. Each subdirectory is a standalone main package — cd in and go run ..

Example	Demonstrates
encrypt_field/	Encrypt-at-rest pattern for a database column (the canonical use case for Sealer).
sign_webhook/	Sign an outgoing webhook with HMAC-SHA256 and verify on the receiving side.
hash_password/	Register/login flow with argon2id password hashing.
random_token/	Generate API keys, magic-link tokens, and CSRF tokens.
seal_with_aad/	Bind ciphertext to a context using additional authenticated data (AAD).
sealer/	Application-wide bound-key Sealer injected via dependency.
migrate_cbc_to_gcm/	One-shot migration script from legacy AES-CBC to AEAD AES-GCM.

Running

From the repository root:

cd examples/encrypt_field
go run .

Or from the example directory directly:

go run github.com/ubgo/crypt/examples/encrypt_field

Pattern

Each example follows the same shape:

1. A short comment block at the top of main.go explaining the use case.
2. A main() that runs end-to-end with output to stdout.
3. A README.md with copy-pasteable explanation of the pattern.

You can adapt these directly into your own application code.