RSA 公钥加密问题

t_zires — Mon, 27 May 2013 00:55:10 +0800

java 代码如下：


ASN1InputStream inputStream = new ASN1InputStream(HSMUtil.hexString2ByteArr(spSecurity.getPubKey()));
            RSAPublicKeyStructure struct = RSAPublicKeyStructure.getInstance(inputStream.readObject());
            RSAPublicKeySpec keySpec = new RSAPublicKeySpec(struct.getModulus(), struct.getPublicExponent());
            KeyFactory factory = KeyFactory.getInstance("RSA");
            PublicKey puk = factory.generatePublic(keySpec);

            Cipher cipher=Cipher.getInstance("RSA/ECB/PKCS1Padding");
            cipher.init(Cipher.ENCRYPT_MODE, puk);
            byte[] result = cipher.doFinal(HSMUtil.hexString2ByteArr(data));

这段代码是用 RSA 的公钥加密明文，如何用 ruby 实现？

我把 ruby1.9 支持的 ciphers 都输出来 (puts OpenSSL::Cipher.ciphers) 了，但是没有看到RSA/ECB/PKCS1Padding，有谁知道的帮帮忙了