查询词典 key signature

Then two steganographic schemes with the ability of information authentication are designed by combining with Hash function and digital signature algorithm. Finally, the authentication security of the two schemes under active attacking istheoretical ratiocinated.(5) A public key steganographic system using gray image as the cover-object is developed.

设计了一种以灰度图像为隐秘载体的公钥隐秘通信方案，在嵌入相当大的数据量时，信息隐藏过程仍然较好地保持了原始图像的质量和统计特性，从理论和实验两方面对方案的安全性进行了分析。

Because of the properties of the high-speed, easy-standardization, easy-implementation by the software or hardware, and so on, block cipher has become the core scheme of the data encryption, digital signature, authorization, key management in information and network safety.

分组密码以其速度快、易于标准化和和便于软硬件实现等特点，成为信息与网络安全中实现数据加密、数字签名、认证及密钥管理的核心体制。

Block cipher is an important branch of cryptology, it has many attractive features such as high rates, easy for standardization, and efficient for both software and hardware implementations. Block ciphers are usually core components in information and Internet security for data encryption, data signature, authentication and key management.

分组密码是密码学的一个重要分支，它具有速度快、易于标准化和便于软硬件实现等特点，通常是信息与网络安全中实现数据加密、数字签名、认证及密钥管理的核心体制。

Mahina leather, calf leather trimmings and microfiber lining,Hook closure secured by a flap and clasp with the Louis Vuitton signature,Internal zippered pocket and a D-ring for attaching a pouch or key holder,Side buckles for adjusting the size of the bag,Base studs for extra protection.

Mahina皮革质地，小牛皮饰边，微纤维衬里，金色黄铜配件，钩扣开合外加垂盖设计，提高安全性，按扣上带有路易威登字样，内设拉链袋和D形环，便于系扣小手袋或钥匙包，侧面设有调整包袋大小的带扣，底部护钉可加强保护。

Mahina leather, calf leather trimmings and microfiber lining.Golden brass pieces,Hook closure secured by a flap and clasp with the Louis Vuitton signature,Internal zippered pocket and a D-ring for attaching a pouch or key holder,Side buckles for adjusting the size of the bag.

Mahina皮革，小牛皮饰边和微纤维衬里，金色黄铜配件，钩扣开合，外有垂盖提高安全性，钩扣上带有路易威登字样，内设拉链袋和D型环，用于系扣小袋或钥匙包，侧面搭扣可调整包袋大小。

The key point of this paper is the software design and hardware design for on-line signature data acquisition system based on four-line resistance touch panel.

本文研究的重点是基于四线电阻式触摸屏的在线签名数据采集系统的软硬件设计。

To overcome the shortcoming of the double-way authentication access control scheme based on Harns digital signature, a new double-way authentication protocol is proposed to improve the old one. A new single-key-lock-pair access control scheme is proposed as a improved access control scheme, based on the property that a integer can be denoted into only one binary digital.

针对基于Harn数字签名双向认证访问控制实现方案中所存在的问题，运用密码技术改进了原方案的双向认证协议，并作为对原访问控制方案的改进，基于整数二进制表示的唯一性，提出了一种新的单钥-锁对访问控制方案。

An improved shceme for the old double-way authentication access control scheme based on Harns digital signature is proposed. The new double-way authentication protocol of the improved access control scheme can prevent man-in-the-middle attack and replay attack. After strict formal analysis with BAN logic, the result have proved that the authentication protocol is secure. The improved access control scheme is realized by the mode of single-key-lock-pair. Under new access control scheme, user can own several kinds of access right upon one file under the new scheme without the supposition that the access rights is increase by degrees, and the possibility of overflow problem is significantly reduced by our new method

作为对原双向认证访问控制方案的改进，改进后的双向身份认证协议可以很好的抵抗中间人攻击和重放攻击，经过严密的BAN逻辑形式分析和论证，结果表明该协议是安全的；改进后的访问控制方案用单钥-锁对方案实现，除保持了一般单钥-锁对方案的良好动态特性外，在不需要访问权限递增假设下，实现了用户对文件的多种访问控制权限，并大大减小了溢出问题的发生可能

Samples of tissue displayed the molecular signature of brown fat, including a key heat-producing protein that was absent from white fat.

这些组织的采样显示出棕色脂肪的分子特征，包括一种产生热量的关键蛋白质，这种蛋白质并不存在于白色脂肪中。

Samples of tissue displayed the molecular signature of brown fat, including a key heat-producing protein that was absent from white fat.

所取的组织样本，显示出各自的分子标签，其中包括一个重要的&产热蛋白&，而这种蛋白质正是白色脂肪中所缺少的。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。