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https://github.com/jeroen/openssl
OpenSSL bindings for R
https://github.com/jeroen/openssl
Last synced: 4 days ago
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OpenSSL bindings for R
- Host: GitHub
- URL: https://github.com/jeroen/openssl
- Owner: jeroen
- License: other
- Created: 2014-10-15T21:09:54.000Z (about 10 years ago)
- Default Branch: master
- Last Pushed: 2024-05-17T07:59:27.000Z (6 months ago)
- Last Synced: 2024-06-11T16:12:24.654Z (5 months ago)
- Language: R
- Homepage:
- Size: 8.81 MB
- Stars: 63
- Watchers: 5
- Forks: 19
- Open Issues: 23
-
Metadata Files:
- Readme: README.md
- License: COPYING
Awesome Lists containing this project
- jimsghstars - jeroen/openssl - OpenSSL bindings for R (R)
README
# openssl
> Toolkit for Encryption, Signatures and Certificates Based on OpenSSL
[](http://cran.r-project.org/package=openssl)
[](http://cran.r-project.org/web/packages/openssl/index.html)
Bindings to OpenSSL libssl and libcrypto, plus custom SSH key parsers.
Supports RSA, DSA and EC curves P-256, P-384, P-521, and curve25519. Cryptographic
signatures can either be created and verified manually or via x509 certificates.
AES can be used in cbc, ctr or gcm mode for symmetric encryption; RSA for asymmetric
(public key) encryption or EC for Diffie Hellman. High-level envelope functions
combine RSA and AES for encrypting arbitrary sized data. Other utilities include key
generators, hash functions (md5, sha1, sha256, etc), base64 encoder, a secure random
number generator, and 'bignum' math methods for manually performing crypto
calculations on large multibyte integers.
## Hello World
Download and verify an SSL certrificate:
```r
library(openssl)
cert <- download_ssl_cert("www.r-project.org")
cert_verify(cert, ca_bundle())
print(cert)
as.list(cert[[1]])
```
Encrypt a secret message using someone's RSA public key:
```r
# Generate test keys
key <- rsa_keygen()
pubkey <- as.list(key)$pubkey
# Encrypt tempkey using receivers public RSA key
secret <- charToRaw("TTIP is evil")
ciphertext <- rsa_encrypt(secret, pubkey)
# Receiver decrypts secret from private her RSA key
rawToChar(rsa_decrypt(ciphertext, key))
```
Create a signature using your RSA private key:
```r
# Sign a file with your private key
myfile <- system.file("DESCRIPTION")
sig <- signature_create(myfile, key = key)
# Others can verify form your public key
signature_verify(myfile, sig, pubkey = pubkey)
```
## Installation
Binary packages for __OS-X__ or __Windows__ can be installed directly from CRAN:
```r
install.packages("openssl")
```
Installation from source on Linux requires [`openssl`](https://www.openssl.org/source/). On __Debian__ or __Ubuntu__ use [libssl-dev](https://packages.debian.org/testing/libssl-dev):
```
sudo apt-get install -y libssl-dev
```
On __Fedora__, __CentOS or RHEL__ use [openssl-devel](https://src.fedoraproject.org/rpms/openssl):
```
sudo yum install openssl-devel
````
On __OS-X__ we need [openssl](https://github.com/Homebrew/homebrew-core/blob/master/Formula/[email protected]) from homebrew, which may be installed as:
```
brew install openssl
```
To check which version you are running (run in a fresh terminal):
```
openssl version -a
```