24 lines
582 B
Ruby
24 lines
582 B
Ruby
require 'openssl'
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require 'optparse'
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include OpenSSL
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options = ARGV.getopts("c:k:r:")
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cert_file = options["c"]
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key_file = options["k"]
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rcpt_file = options["r"]
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cert = X509::Certificate.new(File::read(cert_file))
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key = PKey::RSA.new(File::read(key_file))
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data = "Content-Type: text/plain\r\n"
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data << "\r\n"
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data << "This is a clear-signed message.\r\n"
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p7sig = PKCS7::sign(cert, key, data, [], PKCS7::DETACHED)
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smime0 = PKCS7::write_smime(p7sig)
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rcpt = X509::Certificate.new(File::read(rcpt_file))
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p7enc = PKCS7::encrypt([rcpt], smime0)
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print PKCS7::write_smime(p7enc)
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