Data privacy and integrity will be the crucial and significant factors in recent times for trade which will be transacted over the Internet through e-commerce and m-commerce channels. To deal with these anxieties, various security etiquette related to symmetric and asymmetric key types have been framed. Digital Envelope is one of the practices to attain Privacy, Authentication, Integrity maintenance, and Non-Repudiation in e-commerce chan-nels. In this paper, we suggest a software implementation of a digital envelope for a secure e-commerce channel that combines the hashing algorithm of MD5, the symmetric key algorithm of AES and the asymmetric key algorithm of Hyper Elliptic Curve Cryptography (HECC). The result illustrates that HECC is the best alternative asymmetric key technique rather than ECC and RSA in the digital envelope hybrid cryptosystem.