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exo2: fix bugs in Cmac and DeviceId calculation
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parent
bb3a8a888f
commit
a0b08d0540
2 changed files with 4 additions and 4 deletions
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@ -200,7 +200,7 @@ namespace ams::fuse {
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void GetEcid(br::BootEcid *out) {
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void GetEcid(br::BootEcid *out) {
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/* Get the registers. */
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/* Get the registers. */
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const volatile auto &chip = GetChipRegisters();
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volatile auto &chip = GetChipRegisters();
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/* Read the ecid components. */
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/* Read the ecid components. */
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const u32 vendor = reg::Read(chip.FUSE_OPT_VENDOR_CODE) & ((1u << 4) - 1);
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const u32 vendor = reg::Read(chip.FUSE_OPT_VENDOR_CODE) & ((1u << 4) - 1);
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@ -224,7 +224,7 @@ namespace ams::fuse {
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u64 GetDeviceId() {
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u64 GetDeviceId() {
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/* Get the registers. */
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/* Get the registers. */
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const volatile auto &chip = GetChipRegisters();
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volatile auto &chip = GetChipRegisters();
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/* Read the device id components. */
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/* Read the device id components. */
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/* NOTE: Device ID is "basically" just an alternate encoding of Ecid. */
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/* NOTE: Device ID is "basically" just an alternate encoding of Ecid. */
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@ -181,7 +181,7 @@ namespace ams::se {
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u8 prev = 0;
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u8 prev = 0;
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for (int i = AesBlockSize - 1; i >= 0; --i) {
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for (int i = AesBlockSize - 1; i >= 0; --i) {
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const u8 top = (subkey[i] >> 7);
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const u8 top = (subkey[i] >> 7);
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subkey[i] = ((subkey[i] << 1) | top);
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subkey[i] = ((subkey[i] << 1) | prev);
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prev = top;
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prev = top;
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}
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}
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@ -220,7 +220,7 @@ namespace ams::se {
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ExpandSubkey(subkey);
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ExpandSubkey(subkey);
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/* Account for last block. */
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/* Account for last block. */
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if (last_block_size) {
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if (last_block_size != AesBlockSize) {
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ExpandSubkey(subkey);
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ExpandSubkey(subkey);
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}
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}
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}
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}
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