105 lines
3.4 KiB
Markdown
105 lines
3.4 KiB
Markdown
# tiny-encrypt-rs
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**IMPORTANT**: To use tiny-encrypt, a Yubikey(https://www.yubico.com/products/) is
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required, the key MUST support PIV or OpenPGP.
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Tiny encrypt for Rust
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Specification: [Tiny Encrypt Spec V1.1](https://github.com/OpenWebStandard/tiny-encrypt-format-spec/blob/main/TinyEncryptSpecv1.1.md)
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> Tiny encrypt rs is a Rust implementation of Tiny encrypt java https://git.hatter.ink/hatter/tiny-encrypt-java <br>
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> Tiny encrypt spec see: https://github.com/OpenWebStandard/tiny-encrypt-format-spec
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Repository address: https://git.hatter.ink/hatter/tiny-encrypt-rs mirror https://github.com/jht5945/tiny-encrypt-rs
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Set default encryption algorithm:
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```shell
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export TINY_ENCRYPT_DEFAULT_ALGORITHM='AES' # or CHACHA20
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```
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Compile only encrypt:
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```shell
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cargo build --release --no-default-features
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```
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Edit encrypted file:
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```shell
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tiny-encrypt decrypt --edit-file sample.txt.tinyenc
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```
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Read environment `EDITOR` or `SECURE_EDITOR` to edit file, `SECURE_EDITOR` write encrypted file to temp file.
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Secure editor command format:
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```shell
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$SECURE_EDITOR <temp-file-name> "aes-256-gcm" <temp-key-hex> <temp-nonce-hex>
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```
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<br>
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Encrypt config `~/.tinyencrypt/config-rs.json`:
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```json
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{
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"envelops": [
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{
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"type": "pgp",
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"kid": "KID-1",
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"desc": "this is key 001",
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"publicPart": "----- BEGIN PUBLIC KEY ..."
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},
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{
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"type": "ecdh",
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"kid": "KID-2",
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"desc": "this is key 002",
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"publicPart": "04..."
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}
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],
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"profiles": {
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"default": [
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"KID-1",
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"KID-2"
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],
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"l2,leve2": [
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"KID-2"
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]
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}
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}
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```
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Supported PKI encryption types:
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| Type | Algorithm | Description |
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|---------------|-----------------|------------------------------|
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| pgp | PKCS1-v1.5 | OpenPGP Encryption Key |
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| pgp-x25519 | ECDH(X25519) | OpenPGP Encryption Key |
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| static-x25519 | ECDH(X25519) | Key Stored in KeyChain |
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| ecdh | ECDH(secp256r1) | PIV Slot |
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| ecdh-p384 | ECDH(secp384r1) | PIV Slot |
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| key-p256 | ECDH(secp256r1) | Key Stored in Secure Enclave |
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Smart Card(Yubikey) protected ECDH Encryption description:
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```text
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┌───────────────────┐ ┌───────────────────────────┐
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│Tiny Encrypt │ │Smart Card (Yubikey) │
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│ │ Get Public Key(P) │ │
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│ │ ◄───────────────────┤ Private Key(d) │
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│ │ │ P = dG │
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│ │ Temp Private Key(k) │ │
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└───────────────────┘ Q = kG └───────────────────────────┘
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Shared Secret = kP = kdG
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Store Q, Encrypt using derived key from Shared Secret
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Send Q to Smart Card
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───────────────────►
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Shared Secret = dQ = kdG
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Decrypt using derived key from restored Shared Secret
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```
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