（二）出租、出借国家机关、人民团体、企业、事业单位或者其他组织的公文、证件、证明文件、印章供他人非法使用的；
memset(((C*)x) + old_data_bytes, 0, old_data_bytes - data_bytes);，这一点在同城约会中也有详细论述
This makes sense. These keys were designed as project identifiers for billing, and can be further restricted with (bypassable) controls like HTTP referer allow-listing. They were not designed as authentication credentials. ，详情可参考51吃瓜
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