module Matter::Crypto

Defined in:

matter/crypto/aes/word_array.cr
matter/crypto/crypto.cr
matter/crypto/ecdh.cr
matter/crypto/key.cr
matter/crypto/spake2p.cr

Constant Summary

CRYPTO_AUTH_TAG_LENGTH = 16

CRYPTO_EC_CURVE = "prime256v1"

ECDSA P-256 constants (prime256v1)

CRYPTO_EC_KEY_BYTES = 32

CRYPTO_ENCRYPT_ALGORITHM = "aes-128-ccm"

Cryptographic constants for Matter protocol

CRYPTO_HASH_ALGORITHM = "sha256"

CRYPTO_SYMMETRIC_KEY_LENGTH = 16

Class Method Summary

• .compute_sha256(data : Bytes | Array(Bytes)) : Bytes
• .create_hkdf_key(secret : Bytes, salt : Bytes, info : Bytes, length : Int32 = 32) : Bytes
• .create_key_pair : Key
• .create_pbkdf2_key(secret : Bytes, salt : Bytes, iterations : Int32, key_length : Int32) : Bytes
• .decrypt(key : Bytes, data : Bytes, nonce : Bytes, aad : Bytes | Nil = nil) : Bytes
• .encrypt(key : Bytes, data : Bytes, nonce : Bytes, aad : Bytes | Nil = nil) : Bytes

  Convenience methods that delegate to the global instance

• .generate_dh_secret(private_key : Key, peer_public_key : Key) : Bytes
• .instance : CryptoBase
• .instance=(crypto : CryptoBase)
• .private_key(private_key : Bytes | BinaryKeyPair, extractable : Bool = true) : Key

  Factory methods for convenience

• .public_key(public_key : Bytes, extractable : Bool = true) : Key
• .random_big_int(size : Int32, max_value : BigInt | Nil = nil) : BigInt
• .random_bytes(length : Int32) : Bytes
• .random_uint16 : UInt16
• .random_uint32 : UInt32
• .random_uint64 : UInt64
• .random_uint8 : UInt8

  Random number convenience methods

• .sign_ecdsa(private_key : Key, data : Bytes | Array(Bytes), dsa_encoding : String = "ieee-p1363") : Bytes
• .sign_hmac(key : Bytes, data : Bytes) : Bytes
• .symmetric_key(key_bytes : Bytes, extractable : Bool = true) : Key
• .verify_ecdsa(public_key : Key, data : Bytes, signature : Bytes, dsa_encoding : String = "ieee-p1363") : Nil

Class Method Detail