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openssl: Toolkit for Encryption, Signatures and Certificates Based onOpenSSL

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.

Version:	2.3.4
Imports:	askpass
Suggests:	curl,testthat (≥ 2.1.0),digest,knitr,rmarkdown,jsonlite,jose,sodium
Published:	2025-09-30
DOI:	10.32614/CRAN.package.openssl
Author:	Jeroen Ooms [aut, cre], Oliver Keyes [ctb]
Maintainer:	Jeroen Ooms <jeroenooms at gmail.com>
BugReports:	https://github.com/jeroen/openssl/issues
License:	MIT + fileLICENSE
URL:	https://jeroen.r-universe.dev/openssl
NeedsCompilation:	yes
SystemRequirements:	OpenSSL >= 1.0.2
Materials:	NEWS
CRAN checks:	openssl results

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