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央行孙国峰:区块链技术应用需解决隐私保护等问题
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央行孙国峰:区块链技术应用需解决隐私保护等问题
December 24, 2017, 03:57:08 AM
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央行金融研究所所长孙国峰在22日由中国支付清算协会举办的“区块链发展应用业务研讨会”上指出,在区块链技术的应用中,需探索解决包括隐私保护、升级修复机制等问题。
孙国峰以“能力越大、责任越大”来形容区块链在金融领域的应用。在表示区块链应用前景广阔的同时,他提出了四个方面的问题:
一就是性能问题有待突破。他指出,如果简单地提高区块大小来提高吞吐量,可能很快就会变成只有少数几个大公司能够运行的系统,这样就有违去中心化设计的初衷,这个矛盾可能是系统设计师面临的最大的一个挑战。
二是隐私保护的问题。对于区块链技术应用而言,传统上数据是保存在中心服务器上面,系统运营方保护数据隐私,在区块链特别是公有链当中,没有中心化的运营方,所以每一个参与者都能获得完整的数据备份,数据库是透明的。
他表示,目前区块链技术对隐私保护也有一些解决思路,但仍然需要在应用上有进一步进展。
三是升级修复机制还有待探索。孙国峰指出,在去中心化的系统中,节点数量庞大、参与者身份匿名,又无法关闭系统集中升级,怎么去进行升级,怎么去修复,特别是安全漏洞如何去防范,是非常重要的。
四是要防范区块链技术的应用有可能带来的系统性的风险。他指出,很多区块链应用实际上难以有足够的算力保证系统的稳定性。
区块链技术在近年成为热词。中国支付清算协会执行副会长兼秘书长蔡洪波介绍,为了积极应对新技术带来的机遇和挑战,协会今年成立了金融科技专业委员会,同时发起设立区块链支付应用研究组。协会将同各方加强研究,推动应用,规范发展,促进区块链技术创新和安全应用。(新京报)
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