| package org.bouncycastle.pqc.crypto.sphincs; |
| |
| class SPHINCS256Config |
| { |
| static final int SUBTREE_HEIGHT = 5; |
| static final int TOTALTREE_HEIGHT = 60; |
| static final int N_LEVELS = (TOTALTREE_HEIGHT / SUBTREE_HEIGHT); |
| static final int SEED_BYTES = 32; |
| |
| static final int SK_RAND_SEED_BYTES = 32; |
| static final int MESSAGE_HASH_SEED_BYTES = 32; |
| |
| static final int HASH_BYTES = 32; // Has to be log(HORST_T)*HORST_K/8 |
| static final int MSGHASH_BYTES = 64; |
| |
| static final int CRYPTO_PUBLICKEYBYTES = ((Horst.N_MASKS + 1) * HASH_BYTES); |
| static final int CRYPTO_SECRETKEYBYTES = (SEED_BYTES + CRYPTO_PUBLICKEYBYTES - HASH_BYTES + SK_RAND_SEED_BYTES); |
| static final int CRYPTO_BYTES = (MESSAGE_HASH_SEED_BYTES + (TOTALTREE_HEIGHT + 7) / 8 + Horst.HORST_SIGBYTES + (TOTALTREE_HEIGHT / SUBTREE_HEIGHT) * Wots.WOTS_SIGBYTES + TOTALTREE_HEIGHT * HASH_BYTES); |
| } |