SHA512
SHA512(H, buf, size, zcp);
SHA2Init(SHA512, ctx);
SHA512(H, buf, size, zcp);
SHA2Init(SHA512,
SOFT_MAC_FINAL_2(SHA512, &(hmac_ctx->hc_ctx_u.sha2_ctx),
test_update_64(SHA512, buf, len, len >> 61, len << 3);
SHA2Init(SHA512, &(dctx.sha2_ctx));
SHA2Init(SHA512, &(dctx.sha2_ctx));
SHA2Init(SHA512, &(dctxp->sha2_ctx));
SHA2Init(SHA512, &ctx);