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   This is Edition 0.3.5, last updated 19 March 2002, of `The `GnuPG
Made Easy' Reference Manual', for Version 0.3.5 of the GPGME library.

Introduction: How to use this manual.
Preparation: What you should do before using the library.
Protocols and Engines: Supported crypto protocols.
Error Handling: Error numbers and their meanings.
Exchanging Data: Passing data to and from GPGME.
Contexts: Handling GPGME contexts.

Appendices

Copying: The GNU General Public License says how you
Free Documentation License: This manual is under the GNU Free

Indices

Concept Index: Index of concepts and programs.
Function and Data Index: Index of functions, variables and data types.

--- The Detailed Node Listing --- Introduction

Getting Started: Purpose of the manual, and how to use it.
Features: Reasons to install and use GPGME.
Overview: Basic architecture of the GPGME library.

Preparation

Header: What header file you need to include.
Building the Source: Compiler options to be used.
Library Version Check: Getting and verifying the library version.

Protocols and Engines

Engine Version Check: Verifying the engine version.
Engine Information: Obtaining more information about the engines.
OpenPGP: Support for the OpenPGP protocol.
Cryptographic Message Syntax: Support for the CMS.

Error Handling

Error Values: A list of all error values used.
Error Strings: How to get a descriptive string from a value.

Exchanging Data

Creating Data Buffers: Creating new data buffers.
Destroying Data Buffers: Releasing data buffers.
Manipulating Data Buffers: Operations on data buffers.

Contexts

Creating Contexts: Creating new GPGME contexts.
Destroying Contexts: Releasing GPGME contexts.
Context Attributes: Setting properties of a context.
Key Management: Managing keys with GPGME.
Trust Item Management: Managing trust items with GPGME.
Crypto Operations: Using a context for cryptography.
Run Control: Controlling how operations are run.

Context Attributes

Protocol Selection: Selecting the protocol used by a context.
ASCII Armor: Requesting ASCII armored output.
Text Mode: Choosing canonical text mode.
Included Certificates: Including a number of certificates.
Key Listing Mode: Selecting key listing mode.
Passphrase Callback: Getting the passphrase from the user.
Progress Meter Callback: Being informed about the progress.

Key Management

Listing Keys: Browsing the list of available keys.
Information About Keys: Requesting detailed information about keys.
Manipulating Keys: Operations on keys.
Generating Keys: Creating new key pairs.
Exporting Keys: Retrieving key data from the key ring.
Importing Keys: Adding keys to the key ring.
Deleting Keys: Removing keys from the key ring.

Trust Item Management

Listing Trust Items: Browsing the list of available trust items.
Information About Trust Items: Requesting detailed information about trust items.
Manipulating Trust Items: Operations on trust items.

Crypto Operations

Decrypt: Decrypting a ciphertext.
Verify: Verifying a signature.
Decrypt and Verify: Decrypting a signed ciphertext.
Sign: Creating a signature.
Encrypt: Encrypting a plaintext.
Detailed Results: How to obtain more info about the operation.

Sign

Selecting Signers: How to choose the keys to sign with.
Creating a Signature: How to create a signature.

Encrypt

Selecting Recipients: How to choose the recipients.
Encrypting a Plaintext: How to encrypt a plaintext.

Run Control

Waiting For Completion: Waiting until an operation is completed.
Cancelling an Operation: Interrupting a running operation.
Hooking Up Into Idle Time: Doing something when nothing has to be done.

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