Signed is an important part of the character and credibility of the legal, commercial and artistic entities and to validate the most important international documents it is necessary to make a greeting card. The most important provisions of the assignment document signed and reflect the acceptance of contents and the contents of the document by follawing it with the consent of the parties that have signed. So Common documents including Official or private, commercial or non-commercial, Contracts or unilateral obligation, and even a friendly letters, there is sign. One of these signatures is electronic signatures. Electronic signature means an electronic data that is attached to a data message and helps identify the signer and expressed his satisfaction about the contents and the contents of the message. Digital signature is a type of electronic signature that uses encryption technology used to generate the signature and the high level of security than other types of electronic signature is. In this study, electronic signatures and rules related to it. The study is an analysis of the content of documents and laws. Results showed that although the laws and regulations in this area, but the lack of necessary infrastructure, it would not happen.