cryptogram
1.This paper has expounded on several typical cryptogram algorithms, and analyzed and summed up the implementation procedure of the cryptogram algorithms based on C-Language.
2.In practice, some research groups and companies have actualized ECC. For example, Certicom of Canada is the most famous corporation in cryptogram technology in the world. It has authorized more than 300 companies to use the ECC cryptogram technology.
3.First part, starting from specific TPM (Trusted Platform Module) system structure requisition for cryptogram algorithm in TCG (Trusted Computing Group) standardization, then discussing the algorithm principle of typical cryptogram algorithms and optimization method of convenient hardware realize as AES and RSA ,etc, and hardware fast implementation methods of these algorithms in FPGA or DSP.
4.After analyzing the advantages and the disadvantages of DSE arithmetic and RSA arithmetic, which are both representatives of the traditional cryptogram systems, put forward a model of network data safety system combined two arithmetic.
5.This article according to the characteristic of traditional signature and stamper,combinic the demands of signature and seal in e-Government-affair work information system,inosculates the technology of middleware and e-government-affair security, makes use of Object Oriented and component technology, integrates correlation knowledge of compositive cryptogram, PKI,seal digital image, ActiveX etc,studies and achieves digital e-signature-seal middleware based on Web which is used in Internet/Intranet environment.
6.Their efficiency decides the efficiency of RSA. In order to improve the speed of RSA, this paper study RSA cryptogram arithmetic in depth, bring forward a parallel arithmetic, which combined secret key from right to left scan mode and FIPS operation mode of Montgomery arithmetic, which shift the operation efficiency of RSA arithmetic.

