Task56 基于fisco账户体系，使用公钥加密AES密钥并分发。再使用AES加密数据进行上链 #155
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自定义任务
基于 fisco bcos2.0；go语言
使用2.0的账户体系的ECC非对称加密密钥（.pem文件），在保护各方密钥安全的情况下，收集公钥提供给合约的主导者，使用公钥加密AES密钥，再分发给各个使用者。
在加密速度（对称加密速度非常快）和安全性之间，取得了平衡。加密后的数据上链，合约使用方可以加密共享数据，保证了数据的安全性。
3.0理论上也适用，未测试。