| signature_create {openssl} | R Documentation |
Sign and verify a message digest. RSA supports both MD5 and SHA signatures whereas DSA and EC keys only support SHA.
signature_create(data, hash = sha1, key = my_key(), password = askpass) signature_verify(data, sig, hash = sha1, pubkey = my_pubkey())
data |
raw data vector or file path for message to be signed.
If |
hash |
the digest function to use. Must be one of |
key |
private key or file path. See |
password |
string or a function to read protected keys. See |
sig |
raw vector or file path for the signature data. |
pubkey |
public key or file path. See |
# Generate a keypair
key <- rsa_keygen()
pubkey <- key$pubkey
# Sign a file
data <- system.file("DESCRIPTION")
sig <- signature_create(data, key = key)
stopifnot(signature_verify(data, sig, pubkey = pubkey))
# Sign raw data
data <- serialize(iris, NULL)
sig <- signature_create(data, sha256, key = key)
stopifnot(signature_verify(data, sig, sha256, pubkey = pubkey))
# Sign a hash
md <- md5(data)
sig <- signature_create(md, hash = NULL, key = key)
stopifnot(signature_verify(md, sig, hash = NULL, pubkey = pubkey))