$ docker run --rm --name validator-libsodium-usage-ruby-rbnacl-ed25519-from-seed-deterministic-2732 -t --mount type=bind,src=/tmp/validator-status-libsodium-usage-ruby-rbnacl-ed25519-from-seed-deterministic,dst=/validator/status validator-libsodium-shared bash -lc 'set -euo pipefail
/validator/tests/_shared/install_override_debs.sh
exec /validator/tests/_shared/run_library_tests.sh "$@"' validator-testcase libsodium usage-ruby-rbnacl-ed25519-from-seed-deterministic -- bash -c 'PS4=$1; shift; set -x; source "$@"' validator-xtrace '__VALIDATOR_XTRACE__ ' /validator/tests/libsodium/tests/cases/usage/usage-ruby-rbnacl-ed25519-from-seed-deterministic.sh
no override packages found; continuing with apt originals
seed_a = ("\xab".b * 32)
seed_b = ("\xcd".b * 32)
sk1 = RbNaCl::Signatures::Ed25519::SigningKey.new(seed_a)
sk2 = RbNaCl::Signatures::Ed25519::SigningKey.new(seed_a)
sk3 = RbNaCl::Signatures::Ed25519::SigningKey.new(seed_b)

raise "verify keys differ for same seed" unless sk1.verify_key.to_bytes == sk2.verify_key.to_bytes
raise "verify key length wrong: #{sk1.verify_key.to_bytes.bytesize}" unless sk1.verify_key.to_bytes.bytesize == 32
raise "verify keys match across distinct seeds" if sk1.verify_key.to_bytes == sk3.verify_key.to_bytes

message = "deterministic ed25519 seed payload"
sig1 = sk1.sign(message)
sig2 = sk2.sign(message)
sig3 = sk3.sign(message)
raise "signature length wrong: #{sig1.bytesize}" unless sig1.bytesize == 64
raise "ed25519 signatures differ across same seed" unless sig1 == sig2
raise "signatures match across distinct seeds" if sig1 == sig3

vk = RbNaCl::Signatures::Ed25519::VerifyKey.new(sk1.verify_key.to_bytes)
raise "verify failed for matching message" unless vk.verify(sig1, message)
ok = begin
  vk.verify(sig1, message + "!")
rescue RbNaCl::BadSignatureError
  :rejected
end
raise "verify accepted tampered message" unless ok == :rejected

puts "ok #{sig1.unpack1("H*")[0,16]}"
'
ok 2688d61957bc7470