Skip to content
This repository has been archived by the owner. It is now read-only.
master
Switch branches/tags
Code

Latest commit

 

Git stats

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
 
 
 
 
 
 
 
 
 
 
 
 
 
 

UNNetPGP is Objective-C wrapper for NetPGP for iOS.

About

The PGP solution you've been looking for is here. Low level C based api with Objective-C wrapper around it is all you need to encrypt and decrypt PGP messages. Based on NetPGP, a standards-compliant library and suite of utilities providing digital signature and verification functionality, as well as data encryption and decryption, using RSA and DSA/Elgamal keys.

Known Issues

Due to an unsolved crash when using the SHA-256 algorithm, this library currently uses the SHA-1 hash, which is known to be weak. Patches to fix the crash would be greatly appreciated!

Installation

This package is intended to be used with CocoaPods to satisfy OpenSSL dependency.

Add this to you Podfile:

pod 'UNNetPGP', :podspec => 'https://raw.github.com/krzyzanowskim/unnetpgp/master/UNNetPGP.podspec'
  • Without CocoaPods

Something with Source Trees should do the trick but haven't tested. Pull request welcome.

Usage

Initialize and setup

UNNetPGP *pgp = [[UNNetPGP alloc] initWithUserId:@"marcin.krzyzanowski@gmail.com"];
pgp.password = @"secret1234";
pgp.armored  = YES

Optionally you can specify ringfiles out of home directory

pgp.publicKeyRingPath = [[self documentsDirectory] stringByAppendingPathComponent:@"pubring.gpg"];
pgp.secretKeyRingPath = [[self documentsDirectory] stringByAppendingPathComponent:@"secring.gpg"];

Lets define filenames. Caution: file extension is important for some files! (.gpg,.asc)

NSString *plaintextFile = [myDir stringByAppendingPathComponent:@"plain.txt"];
NSString *encryptedFile = [myDir stringByAppendingPathComponent:@"plain.txt.gpg"];
NSString *decryptedFile = [myDir stringByAppendingPathComponent:@"plain.decoded.txt"];
NSString *signatureFile = [myDir stringByAppendingPathComponent:@"plain.txt.asc"];

Encrypt file

BOOL result = [pgp encryptFileAtPath:plainFilePath toFileAtPath:encryptedFilePath options:UNEncryptOptionNone];
NSLog(@"encryptedFilePath = %@",@(result));

Decrypt file

BOOL result = [pgp decryptFileAtPath:encryptedFilePath toFileAtPath:decryptedFilePath];
NSLog(@"decryptFileAtPath = %@",@(result));

Generate new key (and save in keyring)

BOOL success = [pgp generateKey:1024];

Create file signature

BOOL success = [pgp signFileAtPath:plaintextFile writeToFile:signatureFile detached:YES];

Verify file signature. Caution: there is assumption that signed file exists in the same directory.

BOOL success = [pgp verifyFileAtPath:signatureFile];

Authors

Marcin Krzyżanowski

About

*Deprecated* NetPGP wrapper. Use ObjectivePGP

Resources

License

Packages

No packages published

Languages