There are many cloud data security techniques and algorithms available that can be used to detect attacks on cloud data,but these techniques and algorithms cannot be used to protect data from an attacker.Cloud cryptog...There are many cloud data security techniques and algorithms available that can be used to detect attacks on cloud data,but these techniques and algorithms cannot be used to protect data from an attacker.Cloud cryptography is the best way to transmit data in a secure and reliable format.Various researchers have developed various mechanisms to transfer data securely,which can convert data from readable to unreadable,but these algorithms are not sufficient to provide complete data security.Each algorithm has some data security issues.If some effective data protection techniques are used,the attacker will not be able to decipher the encrypted data,and even if the attacker tries to tamper with the data,the attacker will not have access to the original data.In this paper,various data security techniques are developed,which can be used to protect the data from attackers completely.First,a customized American Standard Code for Information Interchange(ASCII)table is developed.The value of each Index is defined in a customized ASCII table.When an attacker tries to decrypt the data,the attacker always tries to apply the predefined ASCII table on the Ciphertext,which in a way,can be helpful for the attacker to decrypt the data.After that,a radix 64-bit encryption mechanism is used,with the help of which the number of cipher data is doubled from the original data.When the number of cipher values is double the original data,the attacker tries to decrypt each value.Instead of getting the original data,the attacker gets such data that has no relation to the original data.After that,a Hill Matrix algorithm is created,with the help of which a key is generated that is used in the exact plain text for which it is created,and this Key cannot be used in any other plain text.The boundaries of each Hill text work up to that text.The techniques used in this paper are compared with those used in various papers and discussed that how far the current algorithm is better than all other algorithms.Then,the Kasiski test is used to verify the validity of the proposed algorithm and found that,if the proposed algorithm is used for data encryption,so an attacker cannot break the proposed algorithm security using any technique or algorithm.展开更多
目的观察CD_(64)指数、降钙素原(PCT)、白细胞介素-1β(IL-1β)表达在结肠癌患者术后感染诊断及感染程度评估中的价值。方法选取2017年12月-2019年12月义乌復元私立医院外科收治的结肠癌术后感染患者100例为感染组,同期术后未出现感染患...目的观察CD_(64)指数、降钙素原(PCT)、白细胞介素-1β(IL-1β)表达在结肠癌患者术后感染诊断及感染程度评估中的价值。方法选取2017年12月-2019年12月义乌復元私立医院外科收治的结肠癌术后感染患者100例为感染组,同期术后未出现感染患者100例为未感染组。比较两组和感染组组内不同感染程度患者术前及术后1 d、3 d、7 d CD_(64)指数、PCT、IL-1β表达差异,受试者工作特征曲线(ROC)分析CD_(64)指数、PCT、IL-1β单一与联合检测对结肠癌患者术后感染的预测价值,探讨CD_(64)指数、PCT、IL-1β表达与感染程度的关系。结果感染组术后1 d、3 d、7 d CD_(64)指数[(3.09±1.16)、(5.46±1.42)、(2.87±0.84)],PCT[(12.34±2.67)、(18.89±3.15)、(10.86±2.09)]μg/L,IL-1β[(22.46±3.46)、(29.17±4.62)、(20.25±2.87)]ng/ml均高于未感染组(P<0.05);术后3 d CD_(64)指数、PCT、IL-1β联合检测预测结肠癌患者的临床价值最高,其曲线下面积(AUC)为0.867,敏感度为72.00%、特异性为87.00%;CD_(64)指数、血清PCT、IL-1β表达与结肠癌术后感染患者感染程度呈显著正相关(P<0.05)。结论CD_(64)指数、PCT、IL-1β在结肠癌术后感染患者中过度表达,且与感染程度存在显著正相关关系,三者联合检测有望成为预测结肠癌术后感染发生的有效手段。展开更多
基金This research was supported by the Researchers supporting program(TUMAProject-2021-27)Almaarefa University,Riyadh,Saudi Arabia.
文摘There are many cloud data security techniques and algorithms available that can be used to detect attacks on cloud data,but these techniques and algorithms cannot be used to protect data from an attacker.Cloud cryptography is the best way to transmit data in a secure and reliable format.Various researchers have developed various mechanisms to transfer data securely,which can convert data from readable to unreadable,but these algorithms are not sufficient to provide complete data security.Each algorithm has some data security issues.If some effective data protection techniques are used,the attacker will not be able to decipher the encrypted data,and even if the attacker tries to tamper with the data,the attacker will not have access to the original data.In this paper,various data security techniques are developed,which can be used to protect the data from attackers completely.First,a customized American Standard Code for Information Interchange(ASCII)table is developed.The value of each Index is defined in a customized ASCII table.When an attacker tries to decrypt the data,the attacker always tries to apply the predefined ASCII table on the Ciphertext,which in a way,can be helpful for the attacker to decrypt the data.After that,a radix 64-bit encryption mechanism is used,with the help of which the number of cipher data is doubled from the original data.When the number of cipher values is double the original data,the attacker tries to decrypt each value.Instead of getting the original data,the attacker gets such data that has no relation to the original data.After that,a Hill Matrix algorithm is created,with the help of which a key is generated that is used in the exact plain text for which it is created,and this Key cannot be used in any other plain text.The boundaries of each Hill text work up to that text.The techniques used in this paper are compared with those used in various papers and discussed that how far the current algorithm is better than all other algorithms.Then,the Kasiski test is used to verify the validity of the proposed algorithm and found that,if the proposed algorithm is used for data encryption,so an attacker cannot break the proposed algorithm security using any technique or algorithm.
文摘目的观察CD_(64)指数、降钙素原(PCT)、白细胞介素-1β(IL-1β)表达在结肠癌患者术后感染诊断及感染程度评估中的价值。方法选取2017年12月-2019年12月义乌復元私立医院外科收治的结肠癌术后感染患者100例为感染组,同期术后未出现感染患者100例为未感染组。比较两组和感染组组内不同感染程度患者术前及术后1 d、3 d、7 d CD_(64)指数、PCT、IL-1β表达差异,受试者工作特征曲线(ROC)分析CD_(64)指数、PCT、IL-1β单一与联合检测对结肠癌患者术后感染的预测价值,探讨CD_(64)指数、PCT、IL-1β表达与感染程度的关系。结果感染组术后1 d、3 d、7 d CD_(64)指数[(3.09±1.16)、(5.46±1.42)、(2.87±0.84)],PCT[(12.34±2.67)、(18.89±3.15)、(10.86±2.09)]μg/L,IL-1β[(22.46±3.46)、(29.17±4.62)、(20.25±2.87)]ng/ml均高于未感染组(P<0.05);术后3 d CD_(64)指数、PCT、IL-1β联合检测预测结肠癌患者的临床价值最高,其曲线下面积(AUC)为0.867,敏感度为72.00%、特异性为87.00%;CD_(64)指数、血清PCT、IL-1β表达与结肠癌术后感染患者感染程度呈显著正相关(P<0.05)。结论CD_(64)指数、PCT、IL-1β在结肠癌术后感染患者中过度表达,且与感染程度存在显著正相关关系,三者联合检测有望成为预测结肠癌术后感染发生的有效手段。
