Crypt::PK::X25519(3pm) | User Contributed Perl Documentation | Crypt::PK::X25519(3pm) |
Crypt::PK::X25519 - Asymmetric cryptography based on X25519
use Crypt::PK::X25519; #Shared secret my $priv = Crypt::PK::X25519->new('Alice_priv_x25519.der'); my $pub = Crypt::PK::X25519->new('Bob_pub_x25519.der'); my $shared_secret = $priv->shared_secret($pub); #Load key my $pk = Crypt::PK::X25519->new; my $pk_hex = "EA7806F721A8570512C8F6EFB4E8D620C49A529E4DF5EAA77DEC646FB1E87E41"; $pk->import_key_raw(pack("H*", $pk_hex), "public"); my $sk = Crypt::PK::X25519->new; my $sk_hex = "002F93D10BA5728D8DD8E9527721DABA3261C0BB1BEFDE7B4BBDAC631D454651"; $sk->import_key_raw(pack("H*", $sk_hex), "private"); #Key generation my $pk = Crypt::PK::X25519->new->generate_key; my $private_der = $pk->export_key_der('private'); my $public_der = $pk->export_key_der('public'); my $private_pem = $pk->export_key_pem('private'); my $public_pem = $pk->export_key_pem('public'); my $private_raw = $pk->export_key_raw('private'); my $public_raw = $pk->export_key_raw('public'); my $private_jwk = $pk->export_key_jwk('private'); my $public_jwk = $pk->export_key_jwk('public');
Since: CryptX-0.067
my $pk = Crypt::PK::X25519->new(); #or my $pk = Crypt::PK::X25519->new($priv_or_pub_key_filename); #or my $pk = Crypt::PK::X25519->new(\$buffer_containing_priv_or_pub_key);
Support for password protected PEM keys
my $pk = Crypt::PK::X25519->new($priv_pem_key_filename, $password); #or my $pk = Crypt::PK::X25519->new(\$buffer_containing_priv_pem_key, $password);
Uses Yarrow-based cryptographically strong random number generator seeded with random data taken from "/dev/random" (UNIX) or "CryptGenRandom" (Win32).
$pk->generate_key;
Loads private or public key in DER or PEM format.
$pk->import_key($filename); #or $pk->import_key(\$buffer_containing_key);
Support for password protected PEM keys:
$pk->import_key($filename, $password); #or $pk->import_key(\$buffer_containing_key, $password);
Loading private or public keys form perl hash:
$pk->import_key($hashref); # the $hashref is either a key exported via key2hash $pk->import_key({ curve => "x25519", pub => "EA7806F721A8570512C8F6EFB4E8D620C49A529E4DF5EAA77DEC646FB1E87E41", priv => "002F93D10BA5728D8DD8E9527721DABA3261C0BB1BEFDE7B4BBDAC631D454651", }); # or a hash with items corresponding to JWK (JSON Web Key) $pk->import_key({ kty => "OKP", crv => "X25519", d => "AC-T0Qulco2N2OlSdyHaujJhwLsb7957S72sYx1FRlE", x => "6ngG9yGoVwUSyPbvtOjWIMSaUp5N9eqnfexkb7HofkE", });
Supported key formats:
# all formats can be loaded from a file my $pk = Crypt::PK::X25519->new($filename); # or from a buffer containing the key my $pk = Crypt::PK::X25519->new(\$buffer_with_key);
-----BEGIN X25519 PRIVATE KEY----- MC4CAQAwBQYDK2VuBCIEIAAvk9ELpXKNjdjpUnch2royYcC7G+/ee0u9rGMdRUZR -----END X25519 PRIVATE KEY-----
-----BEGIN X25519 PRIVATE KEY----- Proc-Type: 4,ENCRYPTED DEK-Info: DES-CBC,DEEFD3D6B714E75A dfFWP5bKn49aZ993NVAhQQPdFWgsTb4j8CWhRjGBVTPl6ITstAL17deBIRBwZb7h pAyIka81Kfs= -----END X25519 PRIVATE KEY-----
-----BEGIN PUBLIC KEY----- MCowBQYDK2VuAyEA6ngG9yGoVwUSyPbvtOjWIMSaUp5N9eqnfexkb7HofkE= -----END PUBLIC KEY-----
-----BEGIN PRIVATE KEY----- MC4CAQAwBQYDK2VuBCIEIAAvk9ELpXKNjdjpUnch2royYcC7G+/ee0u9rGMdRUZR -----END PRIVATE KEY-----
-----BEGIN ENCRYPTED PRIVATE KEY----- MIGHMEsGCSqGSIb3DQEFDTA+MCkGCSqGSIb3DQEFDDAcBAiS0NOFZmjJswICCAAw DAYIKoZIhvcNAgkFADARBgUrDgMCBwQIGd40Hdso8Y4EONSRCTrqvftl9hl3zbH9 2QmHF1KJ4HDMdLDRxD7EynonCw2SV7BO+XNRHzw2yONqiTybfte7nk9t -----END ENCRYPTED PRIVATE KEY-----
See <https://tools.ietf.org/html/rfc8037>
{ "kty":"OKP", "crv":"X25519", "x":"6ngG9yGoVwUSyPbvtOjWIMSaUp5N9eqnfexkb7HofkE", "d":"AC-T0Qulco2N2OlSdyHaujJhwLsb7957S72sYx1FRlE", }
BEWARE: For JWK support you need to have JSON::PP, JSON::XS or Cpanel::JSON::XS module.
{ "kty":"OKP", "crv":"X25519", "x":"6ngG9yGoVwUSyPbvtOjWIMSaUp5N9eqnfexkb7HofkE", }
BEWARE: For JWK support you need to have JSON::PP, JSON::XS or Cpanel::JSON::XS module.
Import raw public/private key - can load raw key data exported by "export_key_raw".
$pk->import_key_raw($key, 'public'); $pk->import_key_raw($key, 'private');
my $private_der = $pk->export_key_der('private'); #or my $public_der = $pk->export_key_der('public');
my $private_pem = $pk->export_key_pem('private'); #or my $public_pem = $pk->export_key_pem('public');
Support for password protected PEM keys
my $private_pem = $pk->export_key_pem('private', $password); #or my $private_pem = $pk->export_key_pem('private', $password, $cipher); # supported ciphers: 'DES-CBC' # 'DES-EDE3-CBC' # 'SEED-CBC' # 'CAMELLIA-128-CBC' # 'CAMELLIA-192-CBC' # 'CAMELLIA-256-CBC' # 'AES-128-CBC' # 'AES-192-CBC' # 'AES-256-CBC' (DEFAULT)
Exports public/private keys as a JSON Web Key (JWK).
my $private_json_text = $pk->export_key_jwk('private'); #or my $public_json_text = $pk->export_key_jwk('public');
Also exports public/private keys as a perl HASH with JWK structure.
my $jwk_hash = $pk->export_key_jwk('private', 1); #or my $jwk_hash = $pk->export_key_jwk('public', 1);
BEWARE: For JWK support you need to have JSON::PP, JSON::XS or Cpanel::JSON::XS module.
Export raw public/private key
my $private_bytes = $pk->export_key_raw('private'); #or my $public_bytes = $pk->export_key_raw('public');
# Alice having her priv key $pk and Bob's public key $pkb my $pk = Crypt::PK::X25519->new($priv_key_filename); my $pkb = Crypt::PK::X25519->new($pub_key_filename); my $shared_secret = $pk->shared_secret($pkb); # Bob having his priv key $pk and Alice's public key $pka my $pk = Crypt::PK::X25519->new($priv_key_filename); my $pka = Crypt::PK::X25519->new($pub_key_filename); my $shared_secret = $pk->shared_secret($pka); # same value as computed by Alice
my $rv = $pk->is_private; # 1 .. private key loaded # 0 .. public key loaded # undef .. no key loaded
my $hash = $pk->key2hash; # returns hash like this (or undef if no key loaded): { curve => "x25519", # raw public key as a hexadecimal string pub => "EA7806F721A8570512C8F6EFB4E8D620C49A529E4DF5EAA77DEC646FB1E87E41", # raw private key as a hexadecimal string. undef if key is public only priv => "002F93D10BA5728D8DD8E9527721DABA3261C0BB1BEFDE7B4BBDAC631D454651", }
2020-11-09 | perl v5.32.0 |