Abstract: The present disclosure relates to a digital re-signing method for supporting various digital algorithms in a secure sockets layer (SSL) decryption device, and the method, if an SSL communication connection request between a client terminal and a server in the SSL decryption device is detected, requests an SSL session to the server to establish the SSL session between the SSL decryption device and the server, and obtains related information of the server, identifies a type of a digital signature algorithm designated when establishing the SSL session, creates a private certificate regarding the server using the related information of the server with the designated digital signature algorithm, and if the designated digital signature algorithm is not identical to a digital signature algorithm of a root certificate of the SSL decryption device, creates an intermediate certificate of the SSL decryption device with the designated digital signature algorithm, digitally signs the private certificate with the intermedi

Abstract: The present invention relates to a method of relaying secure socket layer (SSL) communication between a client and a server, decoding a packet, and transmitting the decoded packet to a security device.

Abstract: The present invention relates to a security socket layer decryption method, and relates to a technique which: senses a packet, relating to an SSL handshake for establishing an SSL connection between a client and a server, after a transmission control protocol (TCP) session is set up between the client and the server in an SSL decryption device; configures SSL between the client and the SSL decryption device; configures SSL between the SSL decryption device and the server; sets up a TCP session between a virtual client corresponding to the client and a virtual server responding to the server; transmits packets transmitted and received between the virtual client and the virtual server to a security device when setting up the TCP session; and upon receiving a first SSL packet delivered to the SSL decryption device from the client, decrypts and transmits the first SSL packet to the security device, and re-encrypts and transmits the decrypted first SSL packet to the server.

Abstract: According to one aspect of the present invention, the content transmission method supporting handover includes: (a) compressing, at a compressor, content transmitted from a server and transmitting the compressed content to a decompressor if a request for changing to a compression mode is received; and (b) transmitting, at a compressor, content transmitted from a server without compression to a client or another decompressor connected to the client after a handover occurs if the handover occurs at the client.