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The previous implementation of the malicious check, based on libOTe, had issues as discussed here osu-crypto/libOTe#167 and in the SoftSpokenOT paper. This commit changes the consistency check to the new one which is based on SoftSpokenOT (see Sec. 4 of the updated KOS paper).
Optimized access patterns into V and T in KOS mal check to be more cache friendly.
This was referenced May 8, 2025
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This implements the new consistency check from Sec. 4 of the updated KOS paper. The implementation is based on this commit in libOTe. However, because we have a configurable batch size, the iteration through the matrices T and V is done differently. Instead of iterating the columns, we iterate the rows. This is a more cache efficient iteration.