commit 4919a7dfccc10c6103ae52a212a19f377df269ad
Author: Virgil <virgil@lthn.ai>
Date:   Thu Feb 19 16:20:09 2026 +0000

    Add "Home"

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+# go-crypt
+
+Cryptographic primitives and authentication for the Lethean network. Part of the [Core Go ecosystem](https://forge.lthn.ai/core).
+
+## Installation
+
+```bash
+go get forge.lthn.ai/core/go-crypt
+```
+
+**Requires**: Go 1.25+, depends on `forge.lthn.ai/core/go`
+
+## Package Map
+
+| Import Path | Description |
+|---|---|
+| `go-crypt/auth` | OpenPGP challenge-response authentication with online and air-gapped transport |
+| `go-crypt/crypt` | Symmetric encryption (ChaCha20-Poly1305, AES-256-GCM), KDF, checksums, hashing, HMAC |
+| `go-crypt/crypt/pgp` | PGP key generation, encryption, decryption, signing, verification |
+| `go-crypt/crypt/openpgp` | OpenPGP service implementing `core.Crypt` interface (RSA-4096 + IPC) |
+| `go-crypt/crypt/rsa` | RSA-OAEP encryption/decryption and key pair generation |
+| `go-crypt/crypt/lthn` | LTHN quasi-salted deterministic hashing (RFC-0004) |
+| `go-crypt/crypt/chachapoly` | Standalone XChaCha20-Poly1305 AEAD encryption |
+| `go-crypt/trust` | Agent trust model with tiered access control and policy evaluation |
+
+## Quick Start
+
+```go
+import "forge.lthn.ai/core/go-crypt/crypt"
+
+// Encrypt with passphrase (ChaCha20-Poly1305 + Argon2id KDF)
+encrypted, err := crypt.Encrypt(plaintext, passphrase)
+decrypted, err := crypt.Decrypt(encrypted, passphrase)
+
+// Password hashing (Argon2id)
+hash, err := crypt.HashPassword("secret")
+ok, err := crypt.VerifyPassword("secret", hash)
+```
+
+See [[Cryptography]] for the full API reference.
+
+## Dependencies
+
+- `golang.org/x/crypto` -- Argon2id, scrypt, HKDF, ChaCha20-Poly1305, bcrypt
+- `github.com/ProtonMail/go-crypto` -- OpenPGP implementation
+
+## Licence
+
+EUPL-1.2