通过对BMP图像数据位的读写分析，结合公文流转的特点以及MD5加密算法，实现用户对电子公文的加盖公章操作。
Through the read-write analysis of BMP data bit, and combining the document transmission characteristic and MD5 encryption algorithm, electronic document stamping is realized by user.
通过对BMP图像数据位的读写分析，结合公文流转的特点以及MD5加密算法，实现用户对电子公文的加盖公章操作。
Through the read-write analysis of BMP data bit, and combining the document transmission characteristic and MD5 encryption algorithm, electronic document stamping is realized by user.
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