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path: root/jni/ruby/sample/openssl/smime_write.rb
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require 'openssl'
require 'optparse'
include OpenSSL

options = ARGV.getopts("c:k:r:")

cert_file = options["c"]
key_file  = options["k"]
rcpt_file = options["r"]

cert = X509::Certificate.new(File::read(cert_file))
key = PKey::RSA.new(File::read(key_file))

data  = "Content-Type: text/plain\r\n"
data << "\r\n"
data << "This is a clear-signed message.\r\n"

p7sig  = PKCS7::sign(cert, key, data, [], PKCS7::DETACHED)
smime0 = PKCS7::write_smime(p7sig)

rcpt  = X509::Certificate.new(File::read(rcpt_file))
p7enc = PKCS7::encrypt([rcpt], smime0)
print PKCS7::write_smime(p7enc)