【摘要】 针对Android客户端密钥安全存储问题,利用门限法和拉格朗日插值多项式提出一种基于Android的密钥分存方案。该方案通过口令动态推导出密钥,利用AES对信息进行加密,加密完成后将口令分存在Android手机的多个位置并销毁原始口令和密钥。解密时利用部分分存信息重组口令并生成密钥从而完成解密工作。方案降低了密钥泄漏的风险,提高了鲁棒性,可以应用于一般的商用软件加密方案中。更多还原

【Abstract】 A key generation scheme based on Android is proposed by using the threshold method and the Lagrangian interpolation polynomial for the security problem of Android client key. The scheme first dynamically derived the key through the password,and then encrypted the information using AES. After that we divided the password and stored in different positions in Android. At the same times,the original password and key were destroyed. When decryption files,we combined the password and generated the original key. This scheme reduced risk of leak and lost secrets,which can be used in most encryption schemes of Android application.更多还原