Stateless OpenPGP Command Line Interface
draft-dkg-openpgp-stateless-cli-00
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openpgp D. Gillmor
Internet-Draft ACLU
Intended status: Informational October 28, 2019
Expires: April 30, 2020
Stateless OpenPGP Command Line Interface
draft-dkg-openpgp-stateless-cli-00
Abstract
This document defines a generic stateless command-line interface for
dealing with OpenPGP messages, known as "sop". It aims for a
minimal, well-structured API for dealing with OpenPGP object
security.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 30, 2020.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
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include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Gillmor Expires April 30, 2020 [Page 1]
Internet-Draft Stateless OpenPGP Command Line Interface October 2019
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 4
2. Examples . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Subcommands . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1. Version Information . . . . . . . . . . . . . . . . . . . 5
3.2. Generate a Secret Key . . . . . . . . . . . . . . . . . . 5
3.3. Convert a Secret Key to a Certificate . . . . . . . . . . 5
3.4. Create a Detached Signature . . . . . . . . . . . . . . . 5
3.5. Verify a Detached Signature . . . . . . . . . . . . . . . 5
3.6. Encrypt a Message . . . . . . . . . . . . . . . . . . . . 6
3.7. Decrypt a Message . . . . . . . . . . . . . . . . . . . . 7
3.8. Adding ASCII Armor . . . . . . . . . . . . . . . . . . . 8
3.9. Removing ASCII Armor . . . . . . . . . . . . . . . . . . 9
4. Input/Output Indirect Types . . . . . . . . . . . . . . . . . 9
4.1. CERT . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2. KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3. CIPHERTEXT . . . . . . . . . . . . . . . . . . . . . . . 9
4.4. SIGNATURE . . . . . . . . . . . . . . . . . . . . . . . . 10
4.5. SESSIONKEY . . . . . . . . . . . . . . . . . . . . . . . 10
4.6. PASSWORD . . . . . . . . . . . . . . . . . . . . . . . . 11
4.7. VERIFICATIONS . . . . . . . . . . . . . . . . . . . . . . 11
4.8. DATA . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5. Failure modes . . . . . . . . . . . . . . . . . . . . . . . . 11
6. Guidance for Implementors . . . . . . . . . . . . . . . . . . 12
6.1. One OpenPGP Message At a Time . . . . . . . . . . . . . . 12
6.2. Simplified Subset of OpenPGP Message . . . . . . . . . . 12
6.3. Validate Signatures Only From Known Signers . . . . . . . 13
6.4. Detached Signatures . . . . . . . . . . . . . . . . . . . 13
6.5. Reliance on Supplied Certs and Keys . . . . . . . . . . . 13
7. Guidance for Consumers . . . . . . . . . . . . . . . . . . . 13
8. Security Considerations . . . . . . . . . . . . . . . . . . . 14
8.1. Signature Verification . . . . . . . . . . . . . . . . . 14
8.2. Compression . . . . . . . . . . . . . . . . . . . . . . . 15
9. Privacy Considerations . . . . . . . . . . . . . . . . . . . 15
9.1. Object Security vs. Transport Security . . . . . . . . . 15
10. Document Considerations . . . . . . . . . . . . . . . . . . . 15
10.1. Document History . . . . . . . . . . . . . . . . . . . . 16
10.2. Future Work . . . . . . . . . . . . . . . . . . . . . . 16
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