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m →Algorithm: - replace png with svg |
Speicify length of maskedSeed for decoding |
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# Hash the label ''L'' using the chosen hash function: <math>\mathrm{lHash} = \mathrm{Hash}(L)</math>
# To reverse step 9, split the encoded message ''EM'' into the byte 0x00, the ''maskedSeed'' (with length ''hLen'') and the ''maskedDB'': <math>\mathrm{EM} = \mathrm{0x00} || \mathrm{maskedSeed} || \mathrm{maskedDB}</math>
# Generate the ''seedMask'' which was used to mask the ''seed'': <math>\mathrm{seedMask} = \mathrm{MGF}(\mathrm{maskedDB}, \mathrm{hLen})</math>
# To reverse step 8, recover the ''seed'' with the ''seedMask'': <math>\mathrm{seed} = \mathrm{maskedSeed} \oplus \mathrm{seedMask}</math>
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