# OpenPGP for application developers **{sub-ref}`today`** ```{toctree} :numbered: :maxdepth: 2 :glob: about.md openpgp.md cryptography.md certificates.md private_keys.md signatures.md signing_data.md signing_components.md verification.md encryption.md decryption.md compression.md armor.md pitfalls.md policy.md versions.md migration.md adv/certificates.md adv/private_keys.md adv/signatures.md adv/signing_data.md adv/signing_components.md adv/verification.md adv/encryption.md adv/decryption.md zoom/certificates.md zoom/private_keys.md zoom/signatures.md zoom/encryption.md glossary.md acknowledgements.md artifacts.md ```