Description: 2的16次幂正整数d与n，编写计算d-1 (mod n) 的程序；
2、对于三个不超过2的16次幂正整数a、e与n，编写计算ae (mod n) 的程序。
在上述程序基础上写出下列程序：
（1） 对给定的10000以内数判定其是否为素数；
（2） 进行ElGamal体制的加密与签名。
-two of 16 power-positive integer d and n, calculate the preparation of d-1 (mod n); 2. For not more than 2 3 16 Powers positive integers a, e and n, calculate the preparation ae (mod n) procedures. In the above procedure to write on the basis of the following procedures : (a) the right to 10,000 within a few judging whether a prime number; (2) ElGamal encryption and signature. Platform: |
Size: 2048 |
Author:houny |
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Description: 基于ElGamal的数字签名系统可以对报文在不同的密钥长度上进行签名与验证.-ElGamal digital signature system can be reported to the text in different key signature length and experience certification. Platform: |
Size: 2087936 |
Author:杨怡 |
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Description: Digital Signature Algorithm (DSA)是Schnorr和ElGamal签名算法的变种，被美国NIST作为DSS(DigitalSignature Standard)。算法中应用了下述参数：
p：L bits长的素数。L是64的倍数，范围是512到1024；
q：p - 1的160bits的素因子；
g：g = h^((p-1)/q) mod p，h满足h < p - 1, h^((p-1)/q) mod p > 1；
x：x < q，x为私钥 ；
y：y = g^x mod p ，( p, q, g, y )为公钥；
H( x )：One-Way Hash函数。DSS中选用SHA( Secure Hash Algorithm )。
p, q, g可由一组用户共享，但在实际应用中，使用公共模数可能会带来一定的威胁。签名及验证协议如下：
1. P产生随机数k，k < q；
2. P计算 r = ( g^k mod p ) mod q
s = ( k^(-1) (H(m) + xr)) mod q
签名结果是( m, r, s )。
3. 验证时计算 w = s^(-1)mod q
u1 = ( H( m ) * w ) mod q
u2 = ( r * w ) mod q
v = (( g^u1 * y^u2 ) mod p ) mod q
若v = r，则认为签名有效。
DSA是基于整数有限域离散对数难题的，其安全性与RSA相比差不多。DSA的一个重要特点是两个素数公开，这样，当使用别人的p和q时，即使不知道私钥，你也能确认它们是否是随机产生的，还是作了手脚。RSA算法却作不到。
Platform: |
Size: 136192 |
Author:wildkaede |
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Description: ElGamal算法的Java实现，Elgamal是用来进行数字签名的重要算法。-Java realize ElGamal algorithm, Elgamal digital signature is used to carry out the important algorithms. Platform: |
Size: 3072 |
Author:杨平安 |
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Description: 本项目实现Elgalma体制的加解密，公私钥生成后分别放于不同的文件中。用该密码体制实现了对任意数据类型的加解密以及实现了数据签名验证算法。本项目中我实现的是32位的算法。其中，数字签名验证算法是对hash摘要值（SHA-1算法产生的）进行签名，并进行验证。-The project implementation Elgalma system encryption and decryption, public and private key to generate, after put in a different file. Cryptosystem with the implementation of arbitrary data types as well as the implementation of encryption and decryption of data Signature verification algorithm. I realize this project are the 32 algorithms. Among them, the digital signature verification algorithm is a summary hash value (SHA-1 algorithm generated) for signatures, and verify it. Platform: |
Size: 4096 |
Author:蔡吉欣 |
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Description: Elgamal数字签名的一个大体验证,用于对一个文件的签名后在进行认证.一个VC开发的小程序.-Elgamal digital signature verification of a general for the signature of a document during the certification after. A small VC development process. Platform: |
Size: 431104 |
Author:张理成 |
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Description: 基于大数库miracl的elgamal验证签名c语言实现-Based on large numbers of elgamal library miracl verify signatures c language implementation Platform: |
Size: 1059840 |
Author:hbhb |
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Description: ELGamal算法，可直接应用进行签名计算，可用于ELGmal签名验证，-ELGamal algorithm can be applied directly to the signature calculation, can be used to ELGmal signature verification, Platform: |
Size: 162816 |
Author:avadian |
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Description: elgamal signature scheme . this is a simple program written in visual c++ no extra libraries needed to run the program Platform: |
Size: 2048 |
Author:papriko |
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Description: ElGamal算法，是一种较为常见的加密算法，它是基于1984年提出的公钥密码体制和椭圆曲线加密体系。既能用于数据加密也能用于数字签名，其安全性依赖于计算有限域上离散对数这一难题。在加密过程中，生成的密文长度是明文的两倍，且每次加密后都会在密文中生成一个随机数K。-The ElGamal algorithm is a more common encryption algorithm, which is based on the 1984 public key cryptosystem and elliptic curve cryptography system. Both digital signature can also be used for data encryption, its security relies on computational finite field discrete logarithm problem. Generated during the encryption process, the length of the ciphertext is plaintext twice, and each encryption will generate a random number K in the ciphertext. Platform: |
Size: 2048 |
Author:李小龙 |
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Description: 公约密码中的ElGamal签名算法，通过C++程序实现了其签名过程。-Convention password ElGamal signature algorithm by C++ program to achieve its signature process. Platform: |
Size: 3550208 |
Author:WindAchilles |
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Description: 实现数字签名Elgamal算法，该算法是在rsa算法基础上的变形算法。-Digital signature Elgamal algorithm, the algorithm is in the rsa algorithm on the basis of the deformation algorithm. Platform: |
Size: 1024 |
Author:jimoyong |
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Description: ElGamal數位簽章加解密程式,
可自行修改訊息M用以產生簽章S1與S2-ElGamal digital signature encryption and decryption program can modify the message M to produce the Signature S1 and S2 Platform: |
Size: 1024 |
Author:ASO |
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Description: 利用polarssl里提取的大数库做的elgamal加密和签名(ElGamal encryption and signature using large library extracted from polarssl) Platform: |
Size: 73728 |
Author:爱你zzxasw
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