| 摘要 |
Computer-implemented methods, apparati, data structures, and computer-readable media for downloading a target file (1) quickly and securely from a source computer (2). The target file (1) is broken up into a plurality of chunks (12). The integrity of each chunk (12) is verified (25) by calculating a digest for each chunk (12) and comparing the calculated digest with a prestored digest (32) for that chunk (12). In several embodiments, a manifest file (3) is created. In these embodiments, the manifest file (3) contains the digest (32) for each chunk (12).
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