Setup a Decryption Tool

Source: R/parse.R

If your source file is encrypted - setup a Decryption Tool and then provide the reference (result of this function) to the import functions.

h2o.decryptionSetup(keystore, keystore_type = "JCEKS",
  key_alias = NA_character_, password = NA_character_,
  decrypt_tool = "",
  decrypt_impl = "water.parser.GenericDecryptionTool",
  cipher_spec = NA_character_)

Arguments

keystore

An H2OFrame object referencing a loaded Java Keystore (see example).
keystore_type

(Optional) Specification of Keystore type, defaults to JCEKS.
key_alias

Which key from the keystore to use for decryption.
password

Password to the keystore and the key.
decrypt_tool

(Optional) Name of the decryption tool.
decrypt_impl

(Optional) Java class name implementing the Decryption Tool.
cipher_spec

Specification of a cipher (eg.: AES/ECB/PKCS5Padding).

See also

h2o.importFile, h2o.parseSetup

Examples

# NOT RUN {
library(h2o)
h2o.init()
ks_path <- system.file("extdata", "keystore.jks", package = "h2o")
keystore <- h2o.importFile(path = ks_path, parse = FALSE) # don't parse, keep as a binary file
cipher <- "AES/ECB/PKCS5Padding"
pwd <- "Password123"
alias <- "secretKeyAlias"
dt <- h2o.decryptionSetup(keystore, key_alias = alias, password = pwd, cipher_spec = cipher)
data_path <- system.file("extdata", "prostate.csv.aes", package = "h2o")
data <- h2o.importFile(data_path, decrypt_tool = dt)
summary(data)
# }