class Sodium::Sign::SecretKey

• Sodium::Sign::SecretKey
• Sodium::Key
• Reference
• Object

Overview

Ed25519 secret key used for signing.

https://libsodium.gitbook.io/doc/public-key_cryptography/public-key_signatures

Usage:

key = Sodium::Sign::SecretKey.new
sig = key.sign_detached data
key.public_key.verify_detached data, sig

Defined in:

sodium/sign/secret_key.cr

Constant Summary

KEY_SIZE = LibSodium.crypto_sign_secretkeybytes.to_i

SEED_SIZE = LibSodium.crypto_sign_seedbytes.to_i

SIG_SIZE = LibSodium.crypto_sign_bytes.to_i

Constructors

• .new(key : Bytes, erase = false)

  Copies secret key to a SecureBuffer

  DEPRECATED Use .copy_from or .move_from

• .new(key : Crypto::Secret)

  References existing Crypto::Secret

• .new

  DEPRECATED Use .random

• .new(*, seed : Bytes, erase = false)

  Derive a new secret/public key pair based on a consistent seed.

• .new(*, seed : Crypto::Secret)

  Derive a new secret/public key pair based on a consistent seed.

Class Method Summary

• .copy_from(key : Bytes)

  Copies secret key to a SecureBuffer

• .move_from(key : Bytes)

  Copies secret key to a SecureBuffer Erases key

• .random

  Generates a new random secret/public key pair.

Instance Method Summary

• #key : Crypto::Secret
• #public_key : Sodium::Sign::PublicKey
• #seed : Crypto::Secret
• #sign(message) : Bytes

  Signs message and returns a combined signature.

  EXPERIMENTAL

• #sign_detached(message : Bytes, sig : Bytes | Nil = nil) : Bytes
• #sign_detached(message) : Bytes

  Signs message and returns a detached signature.

• #to_curve25519 : CryptoBox::SecretKey
• #to_slice : Bytes

  DEPRECATED Switching to Crypto::Secret. Use key.readonly or key.readwrite

Constructor Detail

Class Method Detail

Instance Method Detail