Cargo Features
pqc_sphincsplus has no features set by default.
[dependencies]
pqc_sphincsplus = { version = "0.2.0", features = ["haraka", "sha2", "shake", "f128", "f256", "s128", "s256", "simple", "robust", "KAT"] }Must enable only one from each of the groups below otherwise library will throw a compilation error
- haraka
-
Hash
Affects
context::SpxCtx.tweaked512_rc64,context::SpxCtx.tweaked256_rc32,params::SPX_ADDR_BYTES… - sha2 = sha256
-
Affects
context::SpxCtx.state_seeded,context::SpxCtx.state_seeded_512,sha2_robust::thash_512,sha2_simple::thash_512… - shake = sha3
-
Affects
params::SPX_ADDR_BYTES… - f128
-
Security level
Considered equivalent to 128, 192 and 256 bit
NIST levels 1, 3 & 5 respectively
Additionally there is a fast signature mode (f)
and a small signature mode (s)
See the readme and benchmarks for comparison.Affects
sha2::SPX_SHA256_BLOCK_BYTES,sha2::SPX_SHAX_OUTPUT_BYTES,sha2::SPX_SHAX_BLOCK_BYTES… - f192 f256
- s128
-
Affects
sha2::SPX_SHA256_BLOCK_BYTES,sha2::SPX_SHAX_OUTPUT_BYTES,sha2::SPX_SHAX_BLOCK_BYTES… - s192 s256
- simple
-
Tree Hash
SPHINCS+ splits the signatures schemes into a simple and a robust variant for each choice of hash function. The robust variant is comes with all the conservative security guarantees given in SPHNICS.
The simple variants are pure random oracle instantiations. These instantiations achieve about a factor three speed-up compared to the robust counterparts. This comes at the cost of a purely heuristic security argument. - robust
-
Affects
haraka::add_round_key32,haraka::shift_rows32,haraka::mix_columns32,haraka::haraka256,sha2::mgf1_256,sha2::mgf1_512… - KAT
-
Exposes inner api methods
Do not use except for running test vectors
Features from optional dependencies
In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.