# PGPainless-SOP
[](https://datatracker.ietf.org/doc/draft-dkg-openpgp-stateless-cli/)
[](https://search.maven.org/artifact/org.pgpainless/pgpainless-sop)
[](https://javadoc.io/doc/org.pgpainless/pgpainless-sop)
Implementation of the Stateless OpenPGP Protocol using PGPainless.
This module implements `sop-java` using `pgpainless-core`.
If your code depends on `sop-java`, this module can be used as a realization of those interfaces.
## Get started
To start using pgpainless-sop in your code, include the following lines in your build script:
```
// If you use Gradle
...
dependencies {
...
implementation "org.pgpainless:pgpainless-sop:1.3.7"
...
}
// If you use Maven
...
...
org.pgpainless
pgpainless-sop
1.3.7
...
```
`pgpainless-sop` will transitively pull in its dependencies, such as `sop-java` and `pgpainless-core`.
## Usage Examples
```java
SOP sop = new SOPImpl();
// Generate an OpenPGP key
byte[] key = sop.generateKey()
.userId("Alice ")
.generate()
.getBytes();
// Extract the certificate (public key)
byte[] cert = sop.extractCert()
.key(key)
.getBytes();
// Encrypt a message
byte[] message = ...
byte[] encrypted = sop.encrypt()
.withCert(cert)
.signWith(key)
.plaintext(message)
.getBytes();
// Decrypt a message
ByteArrayAndResult messageAndVerifications = sop.decrypt()
.verifyWith(cert)
.withKey(key)
.ciphertext(encrypted)
.toByteArrayAndResult();
byte[] decrypted = messageAndVerifications.getBytes();
// Signature Verifications
DecryptionResult messageInfo = messageAndVerifications.getResult();
List signatureVerifications = messageInfo.getVerifications();
```