| 摘要 |
<p>The present invention provides a method and system for the secure transmission and reception of data over a communication channel. In one embodiment (FIG 11) plaintext data is first encrypted into ciphertext (1130), and ciphertext is then scanned into a bitmap (1140). The bitmap is then encrypted (1150) and then transmitted to a destination location (1155), where it is received (1162) and decrypted into original bitmap (1165-1175). The decrypted bitmap is then scanned for ciphertext, which is subsequently decrypted to original plaintext data (1185-1185). In another embodiment, unencrypted plaintext data is canned into a bitmap, and this bitmap is then encrypted and transmitted (FIG 12, 1205-1290).</p> |
