)]}'
{
  "commit": "327378a764064b5edbc8bbebbb95980234892d04",
  "tree": "96cbc2ec766f36ef6fa99a74713247a78bf7109b",
  "parents": [
    "449d2acf3d3a41ff1d6e3a74c2f122b70601dd94"
  ],
  "author": {
    "name": "Michael Brown",
    "email": "mcb30@ipxe.org",
    "time": "Tue Jun 23 12:46:55 2026 +0100"
  },
  "committer": {
    "name": "Michael Brown",
    "email": "mcb30@ipxe.org",
    "time": "Tue Jun 23 13:24:22 2026 +0100"
  },
  "message": "[crypto] Generalise implementation of Merkle-Damgård hash algorithms\n\nAll of our current digest algorithms (MD4, MD5, SHA-1, and the SHA-2\nfamily) use a Merkle-Damgård construction, with only the compression\nfunction, the initial digest values, the field sizes, and the\nendianness differing between algorithms.\n\nProvide a common implementation for Merkle-Damgård hash algorithms to\nreduce code size.  Values are now held as host-endian quantities, with\nany swapping performed byte-by-byte as data is accumulated (using a\ncompile-time constant that is XORed with the byte index).\n\nFor the SHA family of algorithms, the values w[] are now calculated\niteratively as we progress through the main loop: this substantially\nreduces the stack space required for the compression function.\n\nSigned-off-by: Michael Brown \u003cmcb30@ipxe.org\u003e\n",
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