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Contents
require 'crypt_keeper/log_subscriber/postgres_pgp'
module CryptKeeper
module Provider
class PostgresPgp
include CryptKeeper::Helper::SQL
attr_accessor :key
attr_accessor :pgcrypto_options
# Public: Initializes the encryptor
#
# options - A hash, :key is required
def initialize(options = {})
ActiveSupport.run_load_hooks(:crypt_keeper_postgres_pgp_log, self)
@key = options.fetch(:key) do
raise ArgumentError, "Missing :key"
end
@pgcrypto_options = options.fetch(:pgcrypto_options, '')
end
# Public: Encrypts a string
#
# Returns an encrypted string
def encrypt(value)
escape_and_execute_sql(["SELECT pgp_sym_encrypt(?, ?, ?)", value.to_s, key, pgcrypto_options])['pgp_sym_encrypt']
end
# Public: Decrypts a string
#
# Returns a plaintext string
def decrypt(value)
escape_and_execute_sql(["SELECT pgp_sym_decrypt(?, ?)", value, key])['pgp_sym_decrypt']
end
def search(records, field, criteria)
records.where("(pgp_sym_decrypt(cast(#{field} AS bytea), ?) = ?)", key, criteria)
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems